Today's Message Index:
----------------------
1. 04:33 AM - Re: TeamGrumman-List Digest: 7 Msgs - 11/11/04 (Nichols, James D)
2. 06:32 AM - Re: Re: TeamGrumman-List Digest: 7 Msgs - 11/11/04 (Steven Jackson)
3. 07:49 AM - Re: Re: TeamGrumman-List Digest: 7 Msgs - 11/11/04 (flyv35b)
4. 09:28 PM - Re: Carburetor Fuel Leak (Geoffrey Hickey)
Message 1
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|
| Subject: | RE: TeamGrumman-List Digest: 7 Msgs - 11/11/04 |
--> TeamGrumman-List message posted by: "Nichols, James D" <james.d.nichols@lmco.com>
Steve, I have seen the exact same problem from Kelly on the same model
carb, I found the float settings were incorrect (high), perhaps from
being banged around in shipping. Resetting the float level with a 7/32
drill bit (per the overhaul manual) was all that was needed. If the
floats are allowed to be set high, the engine will run rich, but with
the electric fuel pump on, the level will rise (it is supposed to) and
allow the fuel to exit the bowl vent or enrichment circuit. Kelly uses
the metal brass floats which is the better option, I DONOT recommend
replacing them with the new white composite (plastic) floats used by
Precision, I have found these floats to have a de-bonding issue at the
seam and will take on fuel and sink over time. There are differences
between Kelly and Precision overhauls, Kelly uses FAA/PMA parts in the
rebuild and Precision uses OEM parts, some of Kelly's FAA/PMA parts I
have found to be on the outer edges of acceptable, like the idle mixture
screw, if you look at the tip of some of the PMA parts, the flare
(taper) angle is much greater than the OEM, this makes the idle mixture
adjustment very course, and at times impossible to set correctly, if
your A&P is having difficulty setting this adjustment to the desired
50/75 rpm rise and maintaining a good idle speed, then look to obtaining
a replacement OEM idle mixture screw (never bottom the mixture screw!
This will damage the throttle body orifice). There is also an issue of
the acceleration pump setting and the correct P/N of the pump lever that
is to be used on that model carb, it is hit and miss from both
manufactures. If you have excessive hesitation on acceleration at around
1100-1500 rpm, this may need to be reset (up or down) and/or the pump
lever changed out.
JD. Nichols AP
N69KV AA1B 150
Atlanta, Ga
-----Original Message-----
From: owner-teamgrumman-list-server@matronics.com
[mailto:owner-teamgrumman-list-server@matronics.com] On Behalf Of
TeamGrumman-List Digest Server
Subject: TeamGrumman-List Digest: 7 Msgs - 11/11/04
*
==================================================
Online Versions of Today's List Digest Archive
==================================================
Today's complete TeamGrumman-List Digest can also be found in either of
the
two Web Links listed below. The .html file includes the Digest
formatted
in HTML for viewing with a web browser and features Hyperlinked Indexes
and Message Navigation. The .txt file includes the plain ASCII version
of the TeamGrumman-List Digest and can be viewed with a generic text
editor
such as Notepad or with a web browser.
HTML Version:
http://www.matronics.com/digest/teamgrumman-list/Digest.TeamGrumman-List
.2004-11-11.html
Text Version:
http://www.matronics.com/digest/teamgrumman-list/Digest.TeamGrumman-List
.2004-11-11.txt
================================================
EMail Version of Today's List Digest Archive
================================================
TeamGrumman-List Digest Archive
---
Total Messages Posted Thu 11/11/04: 7
Today's Message Index:
----------------------
1. 12:36 AM - Re: elevator (TeamGrumman@AOL.COM)
2. 02:32 AM - The List Fund Raiser - Great Gifts! (Matt Dralle)
3. 05:43 PM - Carburetor Fuel Leak (Steven Jackson)
4. 05:48 PM - Re: Carburetor Fuel Leak (TeamGrumman@AOL.COM)
5. 05:56 PM - Re: Carburetor Fuel Leak (Steven Jackson)
6. 08:04 PM - Re: Carburetor Fuel Leak (923te)
7. 10:26 PM - Re: Carburetor Fuel Leak (Steven Jackson)
________________________________ Message 1
_____________________________________
Time: 12:36:43 AM PST US
From: TeamGrumman@AOL.COM
Subject: Re: TeamGrumman-List: elevator
--> TeamGrumman-List message posted by: TeamGrumman@aol.com
In a message dated 11/10/04 8:32:55 PM, rdp123@verizon.net writes:
> Gary,=A0 I checked for play on the elevator and there was none.=A0 Can
the
> adjustment be made using the same technique you showed me today?
>
>
there is no adjustment
________________________________ Message 2
_____________________________________
Time: 02:32:17 AM PST US
From: Matt Dralle <dralle@matronics.com>
Subject: TeamGrumman-List: The List Fund Raiser - Great Gifts!
--> TeamGrumman-List message posted by: Matt Dralle
<dralle@matronics.com>
Dear Listers,
Just a reminder that we're well into this year's Email List Fund
Raiser! Response has been great so far and there has been a lot of
interest in the Gift options. Speaking of those Gifts, if you haven't
already checked out the nice selection you owe it to yourself to check
them
out. They are once again provided by Andy Gold of the Builder's
Bookstore
www.buildersbooks.com. The gifts this year include the following items:
* List Archive CD
* Aircraft Fuel Tester
* Builder's Logbook
* Mechanic's Toolbox CDROM
* 24 Years of the RVator
* Powerplant Video
* Jeppesen VFR Kneeboard
Won't you make a Contribution today to support the these valuable Email
List Services? Please remember that its YOUR generosity that entirely
supports the continued operation and upgrade of the Lists. That's it -
no
ads, no banners, no SPAM, no virus, no pop-up ads - just good clean
fun! Well, that is, with your support of course!
Please take a moment and make a generous Contribution today. It only
takes
a minute using the Contribution Web Site where you can use either a
Credit
Card, PayPal, or a Personal Check to make your donation.
The URL for the SSL Secure Contribution web site can be found below and
also includes a complete description of this year's awesome gifts:
http://www.matronics.com/contribution
I'd like to say a special "thank you!" to everyone one who has made
Contribution so far this year!! I really appreciate your generosity!
Best regards,
Matt Dralle
Email List Administrator
Matt G Dralle | Matronics | PO Box 347 | Livermore | CA | 94551
925-606-1001 V | 925-606-6281 F | dralle@matronics.com Email
http://www.matronics.com/ WWW | Featuring Products For Aircraft
do not archive
________________________________ Message 3
_____________________________________
Time: 05:43:23 PM PST US
From: "Steven Jackson" <steven.jackson14@adelphia.net>
Subject: TeamGrumman-List: Carburetor Fuel Leak
--> TeamGrumman-List message posted by: "Steven Jackson"
<steven.jackson14@adelphia.net>
TG,
MA-4SPA 10-5092 on my O-320. Obviously don't know if its leaking in
flight
(haven't seen any premature fuel loss airborne), but when I run the
electric
fuel pump on the ground, it looks like once the bowl fills, every bit of
the
gas is leaking out the airbox. My mechanic thinks its a problem with
the
float sticking. He thinks it may not be a problem when the engine is
running, but that we need to get it fixed. The carb was an overhauled
exchange from Kelly, and it was installed at the beginning of September.
Any help would be appreciated
Steven Jackson
'75 AA-1B (O-320A2B Collier)
N1434R
L22
Yucca Valley, CA
________________________________ Message 4
_____________________________________
Time: 05:48:41 PM PST US
From: TeamGrumman@AOL.COM
Subject: Re: TeamGrumman-List: Carburetor Fuel Leak
--> TeamGrumman-List message posted by: TeamGrumman@aol.com
In a message dated 11/11/04 5:44:37 PM, steven.jackson14@adelphia.net
writes:
> The carb was an overhauled
> exchange from Kelly, and it was installed at the beginning of
September.
>
Don't know if this helps or not, but, I had a carb overhauled by Kelly
about
5 years ago and had the same problem. The needle wasn't seating and
leaked.
I got another one and it worked ok.
________________________________ Message 5
_____________________________________
Time: 05:56:07 PM PST US
From: "Steven Jackson" <steven.jackson14@adelphia.net>
Subject: RE: TeamGrumman-List: Carburetor Fuel Leak
--> TeamGrumman-List message posted by: "Steven Jackson"
<steven.jackson14@adelphia.net>
Thanks Gary,
I guess I should have spent the extra money and gone with Precision...
Steve
-----Original Message-----
From: owner-teamgrumman-list-server@matronics.com
[mailto:owner-teamgrumman-list-server@matronics.com]On Behalf Of
TeamGrumman@AOL.COM
Subject: Re: TeamGrumman-List: Carburetor Fuel Leak
--> TeamGrumman-List message posted by: TeamGrumman@aol.com
In a message dated 11/11/04 5:44:37 PM, steven.jackson14@adelphia.net
writes:
> The carb was an overhauled
> exchange from Kelly, and it was installed at the beginning of
September.
>
Don't know if this helps or not, but, I had a carb overhauled by Kelly
about
5 years ago and had the same problem. The needle wasn't seating and
leaked.
I got another one and it worked ok.
________________________________ Message 6
_____________________________________
Time: 08:04:22 PM PST US
From: "923te" <923te@cox.net>
Subject: Re: TeamGrumman-List: Carburetor Fuel Leak
--> TeamGrumman-List message posted by: "923te" <923te@cox.net>
Hi Steven,
I remember something about the floats on these carsbs. I think there are
some with a plastic float that sometimes gets a leak. You might call
http://www.precisionairmotive.com/ and ask them about it. They are the
manufacture of the carb now.
Ned
----- Original Message -----
From: "Steven Jackson" <steven.jackson14@adelphia.net>
Subject: TeamGrumman-List: Carburetor Fuel Leak
> --> TeamGrumman-List message posted by: "Steven Jackson"
<steven.jackson14@adelphia.net>
>
> TG,
>
> MA-4SPA 10-5092 on my O-320. Obviously don't know if its leaking in
flight
> (haven't seen any premature fuel loss airborne), but when I run the
electric
> fuel pump on the ground, it looks like once the bowl fills, every bit
of
the
> gas is leaking out the airbox. My mechanic thinks its a problem with
the
> float sticking. He thinks it may not be a problem when the engine is
> running, but that we need to get it fixed. The carb was an overhauled
> exchange from Kelly, and it was installed at the beginning of
September.
>
> Any help would be appreciated
>
>
> Steven Jackson
> '75 AA-1B (O-320A2B Collier)
> N1434R
> L22
> Yucca Valley, CA
>
>
________________________________ Message 7
_____________________________________
Time: 10:26:57 PM PST US
From: "Steven Jackson" <steven.jackson14@adelphia.net>
Subject: RE: TeamGrumman-List: Carburetor Fuel Leak
--> TeamGrumman-List message posted by: "Steven Jackson"
<steven.jackson14@adelphia.net>
Thanks Ned--I've got a name of a guy at Precision to call. I'll see
what he
says.
Steve
-----Original Message-----
From: owner-teamgrumman-list-server@matronics.com
[mailto:owner-teamgrumman-list-server@matronics.com]On Behalf Of 923te
Subject: Re: TeamGrumman-List: Carburetor Fuel Leak
--> TeamGrumman-List message posted by: "923te" <923te@cox.net>
Hi Steven,
I remember something about the floats on these carsbs. I think there are
some with a plastic float that sometimes gets a leak. You might call
http://www.precisionairmotive.com/ and ask them about it. They are the
manufacture of the carb now.
Ned
----- Original Message -----
From: "Steven Jackson" <steven.jackson14@adelphia.net>
Subject: TeamGrumman-List: Carburetor Fuel Leak
> --> TeamGrumman-List message posted by: "Steven Jackson"
<steven.jackson14@adelphia.net>
>
> TG,
>
> MA-4SPA 10-5092 on my O-320. Obviously don't know if its leaking in
flight
> (haven't seen any premature fuel loss airborne), but when I run the
electric
> fuel pump on the ground, it looks like once the bowl fills, every bit
of
the
> gas is leaking out the airbox. My mechanic thinks its a problem with
the
> float sticking. He thinks it may not be a problem when the engine is
> running, but that we need to get it fixed. The carb was an overhauled
> exchange from Kelly, and it was installed at the beginning of
September.
>
> Any help would be appreciated
>
>
> Steven Jackson
> '75 AA-1B (O-320A2B Collier)
> N1434R
> L22
> Yucca Valley, CA
>
>
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | RE: TeamGrumman-List Digest: 7 Msgs - 11/11/04 |
--> TeamGrumman-List message posted by: "Steven Jackson" <steven.jackson14@adelphia.net>
Thanks JD. Right now the idle is fine, or at least at last flight. It is
running a little rich right now, but my mechanic and I have left that alone
until I finish breaking in the cylinders--its not a huge factor.
I appreciate the post--I'll write this stuff down and take it to my
mechanic.
Steve
-----Original Message-----
From: owner-teamgrumman-list-server@matronics.com
[mailto:owner-teamgrumman-list-server@matronics.com]On Behalf Of
Nichols, James D
Subject: TeamGrumman-List: RE: TeamGrumman-List Digest: 7 Msgs -
11/11/04
--> TeamGrumman-List message posted by: "Nichols, James D"
<james.d.nichols@lmco.com>
Steve, I have seen the exact same problem from Kelly on the same model
carb, I found the float settings were incorrect (high), perhaps from
being banged around in shipping. Resetting the float level with a 7/32
drill bit (per the overhaul manual) was all that was needed. If the
floats are allowed to be set high, the engine will run rich, but with
the electric fuel pump on, the level will rise (it is supposed to) and
allow the fuel to exit the bowl vent or enrichment circuit. Kelly uses
the metal brass floats which is the better option, I DONOT recommend
replacing them with the new white composite (plastic) floats used by
Precision, I have found these floats to have a de-bonding issue at the
seam and will take on fuel and sink over time. There are differences
between Kelly and Precision overhauls, Kelly uses FAA/PMA parts in the
rebuild and Precision uses OEM parts, some of Kelly's FAA/PMA parts I
have found to be on the outer edges of acceptable, like the idle mixture
screw, if you look at the tip of some of the PMA parts, the flare
(taper) angle is much greater than the OEM, this makes the idle mixture
adjustment very course, and at times impossible to set correctly, if
your A&P is having difficulty setting this adjustment to the desired
50/75 rpm rise and maintaining a good idle speed, then look to obtaining
a replacement OEM idle mixture screw (never bottom the mixture screw!
This will damage the throttle body orifice). There is also an issue of
the acceleration pump setting and the correct P/N of the pump lever that
is to be used on that model carb, it is hit and miss from both
manufactures. If you have excessive hesitation on acceleration at around
1100-1500 rpm, this may need to be reset (up or down) and/or the pump
lever changed out.
JD. Nichols AP
N69KV AA1B 150
Atlanta, Ga
-----Original Message-----
From: owner-teamgrumman-list-server@matronics.com
[mailto:owner-teamgrumman-list-server@matronics.com] On Behalf Of
TeamGrumman-List Digest Server
Subject: TeamGrumman-List Digest: 7 Msgs - 11/11/04
*
==================================================
Online Versions of Today's List Digest Archive
==================================================
Today's complete TeamGrumman-List Digest can also be found in either of
the
two Web Links listed below. The .html file includes the Digest
formatted
in HTML for viewing with a web browser and features Hyperlinked Indexes
and Message Navigation. The .txt file includes the plain ASCII version
of the TeamGrumman-List Digest and can be viewed with a generic text
editor
such as Notepad or with a web browser.
HTML Version:
http://www.matronics.com/digest/teamgrumman-list/Digest.TeamGrumman-List
.2004-11-11.html
Text Version:
http://www.matronics.com/digest/teamgrumman-list/Digest.TeamGrumman-List
.2004-11-11.txt
================================================
EMail Version of Today's List Digest Archive
================================================
TeamGrumman-List Digest Archive
---
Total Messages Posted Thu 11/11/04: 7
Today's Message Index:
----------------------
1. 12:36 AM - Re: elevator (TeamGrumman@AOL.COM)
2. 02:32 AM - The List Fund Raiser - Great Gifts! (Matt Dralle)
3. 05:43 PM - Carburetor Fuel Leak (Steven Jackson)
4. 05:48 PM - Re: Carburetor Fuel Leak (TeamGrumman@AOL.COM)
5. 05:56 PM - Re: Carburetor Fuel Leak (Steven Jackson)
6. 08:04 PM - Re: Carburetor Fuel Leak (923te)
7. 10:26 PM - Re: Carburetor Fuel Leak (Steven Jackson)
________________________________ Message 1
_____________________________________
Time: 12:36:43 AM PST US
From: TeamGrumman@AOL.COM
Subject: Re: TeamGrumman-List: elevator
--> TeamGrumman-List message posted by: TeamGrumman@aol.com
In a message dated 11/10/04 8:32:55 PM, rdp123@verizon.net writes:
> Gary,=A0 I checked for play on the elevator and there was none.=A0 Can
the
> adjustment be made using the same technique you showed me today?
>
>
there is no adjustment
________________________________ Message 2
_____________________________________
Time: 02:32:17 AM PST US
From: Matt Dralle <dralle@matronics.com>
Subject: TeamGrumman-List: The List Fund Raiser - Great Gifts!
--> TeamGrumman-List message posted by: Matt Dralle
<dralle@matronics.com>
Dear Listers,
Just a reminder that we're well into this year's Email List Fund
Raiser! Response has been great so far and there has been a lot of
interest in the Gift options. Speaking of those Gifts, if you haven't
already checked out the nice selection you owe it to yourself to check
them
out. They are once again provided by Andy Gold of the Builder's
Bookstore
www.buildersbooks.com. The gifts this year include the following items:
* List Archive CD
* Aircraft Fuel Tester
* Builder's Logbook
* Mechanic's Toolbox CDROM
* 24 Years of the RVator
* Powerplant Video
* Jeppesen VFR Kneeboard
Won't you make a Contribution today to support the these valuable Email
List Services? Please remember that its YOUR generosity that entirely
supports the continued operation and upgrade of the Lists. That's it -
no
ads, no banners, no SPAM, no virus, no pop-up ads - just good clean
fun! Well, that is, with your support of course!
Please take a moment and make a generous Contribution today. It only
takes
a minute using the Contribution Web Site where you can use either a
Credit
Card, PayPal, or a Personal Check to make your donation.
The URL for the SSL Secure Contribution web site can be found below and
also includes a complete description of this year's awesome gifts:
http://www.matronics.com/contribution
I'd like to say a special "thank you!" to everyone one who has made
Contribution so far this year!! I really appreciate your generosity!
Best regards,
Matt Dralle
Email List Administrator
Matt G Dralle | Matronics | PO Box 347 | Livermore | CA | 94551
925-606-1001 V | 925-606-6281 F | dralle@matronics.com Email
http://www.matronics.com/ WWW | Featuring Products For Aircraft
do not archive
________________________________ Message 3
_____________________________________
Time: 05:43:23 PM PST US
From: "Steven Jackson" <steven.jackson14@adelphia.net>
Subject: TeamGrumman-List: Carburetor Fuel Leak
--> TeamGrumman-List message posted by: "Steven Jackson"
<steven.jackson14@adelphia.net>
TG,
MA-4SPA 10-5092 on my O-320. Obviously don't know if its leaking in
flight
(haven't seen any premature fuel loss airborne), but when I run the
electric
fuel pump on the ground, it looks like once the bowl fills, every bit of
the
gas is leaking out the airbox. My mechanic thinks its a problem with
the
float sticking. He thinks it may not be a problem when the engine is
running, but that we need to get it fixed. The carb was an overhauled
exchange from Kelly, and it was installed at the beginning of September.
Any help would be appreciated
Steven Jackson
'75 AA-1B (O-320A2B Collier)
N1434R
L22
Yucca Valley, CA
________________________________ Message 4
_____________________________________
Time: 05:48:41 PM PST US
From: TeamGrumman@AOL.COM
Subject: Re: TeamGrumman-List: Carburetor Fuel Leak
--> TeamGrumman-List message posted by: TeamGrumman@aol.com
In a message dated 11/11/04 5:44:37 PM, steven.jackson14@adelphia.net
writes:
> The carb was an overhauled
> exchange from Kelly, and it was installed at the beginning of
September.
>
Don't know if this helps or not, but, I had a carb overhauled by Kelly
about
5 years ago and had the same problem. The needle wasn't seating and
leaked.
I got another one and it worked ok.
________________________________ Message 5
_____________________________________
Time: 05:56:07 PM PST US
From: "Steven Jackson" <steven.jackson14@adelphia.net>
Subject: RE: TeamGrumman-List: Carburetor Fuel Leak
--> TeamGrumman-List message posted by: "Steven Jackson"
<steven.jackson14@adelphia.net>
Thanks Gary,
I guess I should have spent the extra money and gone with Precision...
Steve
-----Original Message-----
From: owner-teamgrumman-list-server@matronics.com
[mailto:owner-teamgrumman-list-server@matronics.com]On Behalf Of
TeamGrumman@AOL.COM
Subject: Re: TeamGrumman-List: Carburetor Fuel Leak
--> TeamGrumman-List message posted by: TeamGrumman@aol.com
In a message dated 11/11/04 5:44:37 PM, steven.jackson14@adelphia.net
writes:
> The carb was an overhauled
> exchange from Kelly, and it was installed at the beginning of
September.
>
Don't know if this helps or not, but, I had a carb overhauled by Kelly
about
5 years ago and had the same problem. The needle wasn't seating and
leaked.
I got another one and it worked ok.
________________________________ Message 6
_____________________________________
Time: 08:04:22 PM PST US
From: "923te" <923te@cox.net>
Subject: Re: TeamGrumman-List: Carburetor Fuel Leak
--> TeamGrumman-List message posted by: "923te" <923te@cox.net>
Hi Steven,
I remember something about the floats on these carsbs. I think there are
some with a plastic float that sometimes gets a leak. You might call
http://www.precisionairmotive.com/ and ask them about it. They are the
manufacture of the carb now.
Ned
----- Original Message -----
From: "Steven Jackson" <steven.jackson14@adelphia.net>
Subject: TeamGrumman-List: Carburetor Fuel Leak
> --> TeamGrumman-List message posted by: "Steven Jackson"
<steven.jackson14@adelphia.net>
>
> TG,
>
> MA-4SPA 10-5092 on my O-320. Obviously don't know if its leaking in
flight
> (haven't seen any premature fuel loss airborne), but when I run the
electric
> fuel pump on the ground, it looks like once the bowl fills, every bit
of
the
> gas is leaking out the airbox. My mechanic thinks its a problem with
the
> float sticking. He thinks it may not be a problem when the engine is
> running, but that we need to get it fixed. The carb was an overhauled
> exchange from Kelly, and it was installed at the beginning of
September.
>
> Any help would be appreciated
>
>
> Steven Jackson
> '75 AA-1B (O-320A2B Collier)
> N1434R
> L22
> Yucca Valley, CA
>
>
________________________________ Message 7
_____________________________________
Time: 10:26:57 PM PST US
From: "Steven Jackson" <steven.jackson14@adelphia.net>
Subject: RE: TeamGrumman-List: Carburetor Fuel Leak
--> TeamGrumman-List message posted by: "Steven Jackson"
<steven.jackson14@adelphia.net>
Thanks Ned--I've got a name of a guy at Precision to call. I'll see
what he
says.
Steve
-----Original Message-----
From: owner-teamgrumman-list-server@matronics.com
[mailto:owner-teamgrumman-list-server@matronics.com]On Behalf Of 923te
Subject: Re: TeamGrumman-List: Carburetor Fuel Leak
--> TeamGrumman-List message posted by: "923te" <923te@cox.net>
Hi Steven,
I remember something about the floats on these carsbs. I think there are
some with a plastic float that sometimes gets a leak. You might call
http://www.precisionairmotive.com/ and ask them about it. They are the
manufacture of the carb now.
Ned
----- Original Message -----
From: "Steven Jackson" <steven.jackson14@adelphia.net>
Subject: TeamGrumman-List: Carburetor Fuel Leak
> --> TeamGrumman-List message posted by: "Steven Jackson"
<steven.jackson14@adelphia.net>
>
> TG,
>
> MA-4SPA 10-5092 on my O-320. Obviously don't know if its leaking in
flight
> (haven't seen any premature fuel loss airborne), but when I run the
electric
> fuel pump on the ground, it looks like once the bowl fills, every bit
of
the
> gas is leaking out the airbox. My mechanic thinks its a problem with
the
> float sticking. He thinks it may not be a problem when the engine is
> running, but that we need to get it fixed. The carb was an overhauled
> exchange from Kelly, and it was installed at the beginning of
September.
>
> Any help would be appreciated
>
>
> Steven Jackson
> '75 AA-1B (O-320A2B Collier)
> N1434R
> L22
> Yucca Valley, CA
>
>
Message 3
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: RE: TeamGrumman-List Digest: 7 Msgs - 11/11/04 |
--> TeamGrumman-List message posted by: "flyv35b" <flyv35b@ashcreekwireless.com>
James
I have been having a bit of a idle mixture problem on a MA-4SPA carb on a
customers Cheetah that I maintain. The problem is I can't seem to get the
idle mixture setting rich enough no matter what I do with the idle mixture
screw.
The carb was rebuilt by Kelly a few years ago after there was an induction
system fire. A year ago I removed the carb, readjusted the float level
slightly and had new throttle shaft bushings installed as they were a bit
loose. This didn't seem to make any difference and I still cannot get ANY
rpm rise with the mixture screw backed out 3 turns or so! It also idle a
bit rough or ragged at 700-800 rpm. Above that it is pretty smooth. This
year I noticed a slight leakage at a couple of the induction tube gaskets so
I replace all 4 of them. Still not able to get the mixture rich enough.
The carb has the single piece venturi but I don't recall if it has the newer
improve atomizer nozzle.
Do you have any suggestions or reasons for the problem?
Cliff A&P/IA
Cascade Country Aviation
Independence, OR
----- Original Message -----
From: "Nichols, James D" <james.d.nichols@lmco.com>
Subject: TeamGrumman-List: RE: TeamGrumman-List Digest: 7 Msgs - 11/11/04
> --> TeamGrumman-List message posted by: "Nichols, James D"
> <james.d.nichols@lmco.com>
>
> Steve, I have seen the exact same problem from Kelly on the same model
> carb, I found the float settings were incorrect (high), perhaps from
> being banged around in shipping. Resetting the float level with a 7/32
> drill bit (per the overhaul manual) was all that was needed. If the
> floats are allowed to be set high, the engine will run rich, but with
> the electric fuel pump on, the level will rise (it is supposed to) and
> allow the fuel to exit the bowl vent or enrichment circuit. Kelly uses
> the metal brass floats which is the better option, I DONOT recommend
> replacing them with the new white composite (plastic) floats used by
> Precision, I have found these floats to have a de-bonding issue at the
> seam and will take on fuel and sink over time. There are differences
> between Kelly and Precision overhauls, Kelly uses FAA/PMA parts in the
> rebuild and Precision uses OEM parts, some of Kelly's FAA/PMA parts I
> have found to be on the outer edges of acceptable, like the idle mixture
> screw, if you look at the tip of some of the PMA parts, the flare
> (taper) angle is much greater than the OEM, this makes the idle mixture
> adjustment very course, and at times impossible to set correctly, if
> your A&P is having difficulty setting this adjustment to the desired
> 50/75 rpm rise and maintaining a good idle speed, then look to obtaining
> a replacement OEM idle mixture screw (never bottom the mixture screw!
> This will damage the throttle body orifice). There is also an issue of
> the acceleration pump setting and the correct P/N of the pump lever that
> is to be used on that model carb, it is hit and miss from both
> manufactures. If you have excessive hesitation on acceleration at around
> 1100-1500 rpm, this may need to be reset (up or down) and/or the pump
> lever changed out.
>
> JD. Nichols AP
> N69KV AA1B 150
> Atlanta, Ga
>
> -----Original Message-----
> From: owner-teamgrumman-list-server@matronics.com
> [mailto:owner-teamgrumman-list-server@matronics.com] On Behalf Of
> TeamGrumman-List Digest Server
> To: TeamGrumman-List Digest List
> Subject: TeamGrumman-List Digest: 7 Msgs - 11/11/04
>
> *
>
> ==================================================
> Online Versions of Today's List Digest Archive
> ==================================================
>
> Today's complete TeamGrumman-List Digest can also be found in either of
> the
> two Web Links listed below. The .html file includes the Digest
> formatted
> in HTML for viewing with a web browser and features Hyperlinked Indexes
> and Message Navigation. The .txt file includes the plain ASCII version
> of the TeamGrumman-List Digest and can be viewed with a generic text
> editor
> such as Notepad or with a web browser.
>
> HTML Version:
>
>
> .2004-11-11.html
>
> Text Version:
>
>
> .2004-11-11.txt
>
>
> ================================================
> EMail Version of Today's List Digest Archive
> ================================================
>
>
> TeamGrumman-List Digest Archive
> ---
> Total Messages Posted Thu 11/11/04: 7
>
>
> Today's Message Index:
> ----------------------
>
> 1. 12:36 AM - Re: elevator (TeamGrumman@AOL.COM)
> 2. 02:32 AM - The List Fund Raiser - Great Gifts! (Matt Dralle)
> 3. 05:43 PM - Carburetor Fuel Leak (Steven Jackson)
> 4. 05:48 PM - Re: Carburetor Fuel Leak (TeamGrumman@AOL.COM)
> 5. 05:56 PM - Re: Carburetor Fuel Leak (Steven Jackson)
> 6. 08:04 PM - Re: Carburetor Fuel Leak (923te)
> 7. 10:26 PM - Re: Carburetor Fuel Leak (Steven Jackson)
>
>
> ________________________________ Message 1
> _____________________________________
>
>
> Time: 12:36:43 AM PST US
> From: TeamGrumman@AOL.COM
> Subject: Re: TeamGrumman-List: elevator
>
> --> TeamGrumman-List message posted by: TeamGrumman@aol.com
>
>
> In a message dated 11/10/04 8:32:55 PM, rdp123@verizon.net writes:
>
>
>> Gary,=A0 I checked for play on the elevator and there was none.=A0 Can
> the
>> adjustment be made using the same technique you showed me today?
>>
>>
>
> there is no adjustment
>
>
> ________________________________ Message 2
> _____________________________________
>
>
> Time: 02:32:17 AM PST US
> From: Matt Dralle <dralle@matronics.com>
> Subject: TeamGrumman-List: The List Fund Raiser - Great Gifts!
>
> --> TeamGrumman-List message posted by: Matt Dralle
> <dralle@matronics.com>
>
>
> Dear Listers,
>
> Just a reminder that we're well into this year's Email List Fund
> Raiser! Response has been great so far and there has been a lot of
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> do not archive
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>
> ________________________________ Message 3
> _____________________________________
>
>
> Time: 05:43:23 PM PST US
> From: "Steven Jackson" <steven.jackson14@adelphia.net>
> Subject: TeamGrumman-List: Carburetor Fuel Leak
>
> --> TeamGrumman-List message posted by: "Steven Jackson"
> <steven.jackson14@adelphia.net>
>
> TG,
>
> MA-4SPA 10-5092 on my O-320. Obviously don't know if its leaking in
> flight
> (haven't seen any premature fuel loss airborne), but when I run the
> electric
> fuel pump on the ground, it looks like once the bowl fills, every bit of
> the
> gas is leaking out the airbox. My mechanic thinks its a problem with
> the
> float sticking. He thinks it may not be a problem when the engine is
> running, but that we need to get it fixed. The carb was an overhauled
> exchange from Kelly, and it was installed at the beginning of September.
>
> Any help would be appreciated
>
>
> Steven Jackson
> '75 AA-1B (O-320A2B Collier)
> N1434R
> L22
> Yucca Valley, CA
>
>
> ________________________________ Message 4
> _____________________________________
>
>
> Time: 05:48:41 PM PST US
> From: TeamGrumman@AOL.COM
> Subject: Re: TeamGrumman-List: Carburetor Fuel Leak
>
> --> TeamGrumman-List message posted by: TeamGrumman@aol.com
>
>
> In a message dated 11/11/04 5:44:37 PM, steven.jackson14@adelphia.net
> writes:
>
>
>> The carb was an overhauled
>> exchange from Kelly, and it was installed at the beginning of
> September.
>>
>
> Don't know if this helps or not, but, I had a carb overhauled by Kelly
> about
> 5 years ago and had the same problem. The needle wasn't seating and
> leaked.
>
> I got another one and it worked ok.
>
>
> ________________________________ Message 5
> _____________________________________
>
>
> Time: 05:56:07 PM PST US
> From: "Steven Jackson" <steven.jackson14@adelphia.net>
> Subject: RE: TeamGrumman-List: Carburetor Fuel Leak
>
> --> TeamGrumman-List message posted by: "Steven Jackson"
> <steven.jackson14@adelphia.net>
>
> Thanks Gary,
>
> I guess I should have spent the extra money and gone with Precision...
>
> Steve
>
> -----Original Message-----
> From: owner-teamgrumman-list-server@matronics.com
> [mailto:owner-teamgrumman-list-server@matronics.com]On Behalf Of
> TeamGrumman@AOL.COM
> Subject: Re: TeamGrumman-List: Carburetor Fuel Leak
>
>
> --> TeamGrumman-List message posted by: TeamGrumman@aol.com
>
>
> In a message dated 11/11/04 5:44:37 PM, steven.jackson14@adelphia.net
> writes:
>
>
>> The carb was an overhauled
>> exchange from Kelly, and it was installed at the beginning of
> September.
>>
>
> Don't know if this helps or not, but, I had a carb overhauled by Kelly
> about
> 5 years ago and had the same problem. The needle wasn't seating and
> leaked.
> I got another one and it worked ok.
>
>
> ________________________________ Message 6
> _____________________________________
>
>
> Time: 08:04:22 PM PST US
> From: "923te" <923te@cox.net>
> Subject: Re: TeamGrumman-List: Carburetor Fuel Leak
>
> --> TeamGrumman-List message posted by: "923te" <923te@cox.net>
>
> Hi Steven,
>
> I remember something about the floats on these carsbs. I think there are
> some with a plastic float that sometimes gets a leak. You might call
> http://www.precisionairmotive.com/ and ask them about it. They are the
> manufacture of the carb now.
>
> Ned
>
> ----- Original Message -----
> From: "Steven Jackson" <steven.jackson14@adelphia.net>
> Subject: TeamGrumman-List: Carburetor Fuel Leak
>
>
>> --> TeamGrumman-List message posted by: "Steven Jackson"
> <steven.jackson14@adelphia.net>
>>
>> TG,
>>
>> MA-4SPA 10-5092 on my O-320. Obviously don't know if its leaking in
> flight
>> (haven't seen any premature fuel loss airborne), but when I run the
> electric
>> fuel pump on the ground, it looks like once the bowl fills, every bit
> of
> the
>> gas is leaking out the airbox. My mechanic thinks its a problem with
> the
>> float sticking. He thinks it may not be a problem when the engine is
>> running, but that we need to get it fixed. The carb was an overhauled
>> exchange from Kelly, and it was installed at the beginning of
> September.
>>
>> Any help would be appreciated
>>
>>
>> Steven Jackson
>> '75 AA-1B (O-320A2B Collier)
>> N1434R
>> L22
>> Yucca Valley, CA
>>
>>
>
>
> ________________________________ Message 7
> _____________________________________
>
>
> Time: 10:26:57 PM PST US
> From: "Steven Jackson" <steven.jackson14@adelphia.net>
> Subject: RE: TeamGrumman-List: Carburetor Fuel Leak
>
> --> TeamGrumman-List message posted by: "Steven Jackson"
> <steven.jackson14@adelphia.net>
>
> Thanks Ned--I've got a name of a guy at Precision to call. I'll see
> what he
> says.
>
> Steve
>
> -----Original Message-----
> From: owner-teamgrumman-list-server@matronics.com
> [mailto:owner-teamgrumman-list-server@matronics.com]On Behalf Of 923te
> Subject: Re: TeamGrumman-List: Carburetor Fuel Leak
>
>
> --> TeamGrumman-List message posted by: "923te" <923te@cox.net>
>
> Hi Steven,
>
> I remember something about the floats on these carsbs. I think there are
> some with a plastic float that sometimes gets a leak. You might call
> http://www.precisionairmotive.com/ and ask them about it. They are the
> manufacture of the carb now.
>
> Ned
>
> ----- Original Message -----
> From: "Steven Jackson" <steven.jackson14@adelphia.net>
> Subject: TeamGrumman-List: Carburetor Fuel Leak
>
>
>> --> TeamGrumman-List message posted by: "Steven Jackson"
> <steven.jackson14@adelphia.net>
>>
>> TG,
>>
>> MA-4SPA 10-5092 on my O-320. Obviously don't know if its leaking in
> flight
>> (haven't seen any premature fuel loss airborne), but when I run the
> electric
>> fuel pump on the ground, it looks like once the bowl fills, every bit
> of
> the
>> gas is leaking out the airbox. My mechanic thinks its a problem with
> the
>> float sticking. He thinks it may not be a problem when the engine is
>> running, but that we need to get it fixed. The carb was an overhauled
>> exchange from Kelly, and it was installed at the beginning of
> September.
>>
>> Any help would be appreciated
>>
>>
>> Steven Jackson
>> '75 AA-1B (O-320A2B Collier)
>> N1434R
>> L22
>> Yucca Valley, CA
>>
>>
>
>
>
Message 4
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| Subject: | Re: Carburetor Fuel Leak |
--> TeamGrumman-List message posted by: Geoffrey Hickey <ardri@comcast.net>
TeamGrumman@AOL.COM wrote:
>--> TeamGrumman-List message posted by: TeamGrumman@aol.com
>
>
>In a message dated 11/11/04 5:44:37 PM, steven.jackson14@adelphia.net writes:
>
>
>
>
>>The carb was an overhauled
>>exchange from Kelly, and it was installed at the beginning of September.
>>
>>
>>
>
>Don't know if this helps or not, but, I had a carb overhauled by Kelly about
>5 years ago and had the same problem. The needle wasn't seating and leaked.
> I got another one and it worked ok.
>
>
>
>
All that I know about carburetors is theoretical, never having seen the
insides of one. But I had a shutdown problem when I bought my plane
(engine wouldn't shutdown completely with the mixture full lean unless
the throttle was opened to add more air to the mixture - Gary you'll
remember this). It turned out to be caused by a scored needle. The
mechanic who fixed it told me that it's his belief that those needles
are frequently not replaced when carbs are overhauled. So there you are,
some second-hand carb-babble.
- Geoff Hickey
Cheetah N26681
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