Today's Message Index:
----------------------
1. 12:31 AM - Re: TeamGrumman-List Digest: 2 Msgs - 03/18/04 (Tiger67B)
2. 05:56 AM - Re: Re: TeamGrumman-List Digest: 2 Msgs - 03/18/04 (flyv35b)
3. 09:41 PM - Main gear replacement (TeamGrumman@aol.com)
Message 1
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| Subject: | Re: TeamGrumman-List Digest: 2 Msgs - 03/18/04 |
--> TeamGrumman-List message posted by: Tiger67B <jnpsavage@cox.net>
Bayonet was used as generic term... the JPI comes with 3 bayonets and
one "ring" type. It would result in the one cyl with
the "ring" being the odd ball.. I made a point of putting all 4 in as
bayonets to keep all reading "true" readings, all the same, with
any differences being the real difference in temps....that's all. IF he
put in one ring and 3 bayos, it might account for some of
the disparity between cyls because ring will read differently than
bayos....a stupid way to do it, I think..
Jan
TeamGrumman-List Digest Server wrote:
>*
>
> ==================================================
> Online Versions of Today's List Digest Archive
> ==================================================
>
>Today's complete TeamGrumman-List Digest can be 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.2004-03-18.html
>
>Text Version:
>
> http://www.matronics.com/digest/teamgrumman-list/Digest.TeamGrumman-List.2004-03-18.txt
>
>
> ================================================
> EMail Version of Today's List Digest Archive
> ================================================
>
>
> TeamGrumman-List Digest Archive
> ---
> Total Messages Posted Thu 03/18/04: 2
>
>
>Today's Message Index:
>----------------------
>
> 1. 04:54 PM - Re: TeamGrumman-List Digest: 8 Msgs - 03/15/04 (Tiger67B)
> 2. 08:21 PM - Re: CHT PROBES (FLYaDIVE@aol.com)
>
>
>
>________________________________ Message 1 _____________________________________
>
>
>Time: 04:54:47 PM PST US
>From: Tiger67B <jnpsavage@cox.net>
>Subject: TeamGrumman-List: Re: TeamGrumman-List Digest: 8 Msgs - 03/15/04
>
>--> TeamGrumman-List message posted by: Tiger67B <jnpsavage@cox.net>
>
>On some installations they will supply you with a thermocouple and 3
>bayonets for picking up CHTS's.... and they warn you that
>numbers can be very different.... when I put in my JPI, I made a point
>of getting all the same (bayonets) temp pickups, with no
>thermocouples...it came with at least one..
>
>Jan Savage
>Tiger 67B
>
>
>
>
>>________________________________ Message 1 _____________________________________
>>
>>
>>Time: 06:36:20 AM PST US
>>From: "flyv35b" <flyv35b@ashcreekwireless.com>
>>Subject: Re: TeamGrumman-List: Baffle adjustments
>>
>>--> TeamGrumman-List message posted by: "flyv35b" <flyv35b@ashcreekwireless.com>
>>
>>I'm sure Gary will have something to say about this, but 130+F variation
>>between the front and rear cylinders is HUGH. I've never seen a plane with
>>anywhere near that much variation.
>>
>>I'd take a close look at the rear baffles and the parts that wrap down under
>>the cylinder barrel and head fins. The length of the head baffle is to long
>>many times after someone has replaced it and it can restrict air flow. The
>>head baffle should terminate at about the same location (clock position) as
>>the barrel baffle. Some go so far you can even install a CHT probe.
>>
>>Of course there are several other areas that could be contributing to your
>>high CHTs. Maybe something is wrong with the forward cylinder baffling and
>>a lot of air is being "dumped" up at the front and thereby lowering the
>>pressure and flow across the rear cylinders. Best get the problem resolved
>>before the ambient temp gets warmer.
>>
>>Cliff A&P/IA
>>
>>
>>
>>
>
>
>________________________________ Message 2 _____________________________________
>
>
>Time: 08:21:27 PM PST US
>From: FLYaDIVE@aol.com
>Subject: Re: TeamGrumman-List:CHT PROBES
>
>--> TeamGrumman-List message posted by: FLYaDIVE@aol.com
>
>In a message dated 3/18/04 7:56:02 PM Eastern Standard Time,
>jnpsavage@cox.net writes:
>
>
>
>>--> TeamGrumman-List message posted by: Tiger67B <jnpsavage@cox.net>
>>
>> On some installations they will supply you with a thermocouple and 3
>> bayonets for picking up CHTS's.... and they warn you that
>> numbers can be very different.... when I put in my JPI, I made a point
>> of getting all the same (bayonets) temp pickups, with no
>> thermocouples...it came with at least one..
>>
>> Jan Savage
>> Tiger 67B
>>
>>
>================
>Jan:
>
>Could you explain further? What do you mean by "I made a point of getting
>all the same (bayonets) temp pickups, with no thermocouples...it came with at
>least one.."
>
>Bayonet is the type of mount. Example: Bayonet and Ring/Gasket. Bayonet is
>a misnomer it really is a threaded mount that screws into the cylinder head,
>The Ring is a ring that fits under the spark plug. Which does not read CHT's as
>
>accurate as a bayonet due to its location.
>The both are thermocouples. It is called a thermocouple because of the
>dissimilar metal junction that produces a voltage in correspondence to a
>temperature.
>
>Barry
>"Chop'd Liver"
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
--
Visit our PERSONAL WEBSITE at: http://www.geocities.com/tiger67bravo/
Message 2
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| Subject: | Re: TeamGrumman-List Digest: 2 Msgs - 03/18/04 |
--> TeamGrumman-List message posted by: "flyv35b" <flyv35b@ashcreekwireless.com>
> Bayonet was used as generic term... the JPI comes with 3 bayonets and
> one "ring" type. It would result in the one cyl with
> the "ring" being the odd ball.. I made a point of putting all 4 in as
> bayonets to keep all reading "true" readings, all the same, with
> any differences being the real difference in temps....that's all. IF he
> put in one ring and 3 bayos, it might account for some of
> the disparity between cyls because ring will read differently than
> bayos....a stupid way to do it, I think..
If you ordered a 4 cyl. CHT for a Tiger, etc. from JPI, and got one spark
plug thermocouple, you didn't tell them what you wanted. The only reason
that they include a spark plug gasket thermocouple is for engines that had a
CHT installed in the well (bayonet style) from the factory. The FAA
required all "altitude engines" to have a CHT so the factory installed Alcor
(usually) analog gauges with a probe in one cylinder only. Since you cannot
remove this as it is a "primary" instrument (unless you install an approved
primary replacement) then you need the spark plug thermocouple. There is
another option, but I won't go into that.
Cliff A&P/IA
----- Original Message -----
From: "Tiger67B" <jnpsavage@cox.net>
Subject: TeamGrumman-List: Re: TeamGrumman-List Digest: 2 Msgs - 03/18/04
> --> TeamGrumman-List message posted by: Tiger67B <jnpsavage@cox.net>
>
> Bayonet was used as generic term... the JPI comes with 3 bayonets and
> one "ring" type. It would result in the one cyl with
> the "ring" being the odd ball.. I made a point of putting all 4 in as
> bayonets to keep all reading "true" readings, all the same, with
> any differences being the real difference in temps....that's all. IF he
> put in one ring and 3 bayos, it might account for some of
> the disparity between cyls because ring will read differently than
> bayos....a stupid way to do it, I think..
>
> Jan
>
>
> TeamGrumman-List Digest Server wrote:
>
> >*
> >
> > ==================================================
> > Online Versions of Today's List Digest Archive
> > ==================================================
> >
> >Today's complete TeamGrumman-List Digest can be 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.200
4-03-18.html
> >
> >Text Version:
> >
> >
http://www.matronics.com/digest/teamgrumman-list/Digest.TeamGrumman-List.200
4-03-18.txt
> >
> >
> > ================================================
> > EMail Version of Today's List Digest Archive
> > ================================================
> >
> >
> > TeamGrumman-List Digest Archive
> > ---
> > Total Messages Posted Thu 03/18/04: 2
> >
> >
> >Today's Message Index:
> >----------------------
> >
> > 1. 04:54 PM - Re: TeamGrumman-List Digest: 8 Msgs - 03/15/04
(Tiger67B)
> > 2. 08:21 PM - Re: CHT PROBES (FLYaDIVE@aol.com)
> >
> >
> >
> >________________________________ Message 1
_____________________________________
> >
> >
> >Time: 04:54:47 PM PST US
> >From: Tiger67B <jnpsavage@cox.net>
> >Subject: TeamGrumman-List: Re: TeamGrumman-List Digest: 8 Msgs - 03/15/04
> >
> >--> TeamGrumman-List message posted by: Tiger67B <jnpsavage@cox.net>
> >
> >On some installations they will supply you with a thermocouple and 3
> >bayonets for picking up CHTS's.... and they warn you that
> >numbers can be very different.... when I put in my JPI, I made a point
> >of getting all the same (bayonets) temp pickups, with no
> >thermocouples...it came with at least one..
> >
> >Jan Savage
> >Tiger 67B
> >
> >
> >
> >
> >>________________________________ Message 1
_____________________________________
> >>
> >>
> >>Time: 06:36:20 AM PST US
> >>From: "flyv35b" <flyv35b@ashcreekwireless.com>
> >>Subject: Re: TeamGrumman-List: Baffle adjustments
> >>
> >>--> TeamGrumman-List message posted by: "flyv35b"
<flyv35b@ashcreekwireless.com>
> >>
> >>I'm sure Gary will have something to say about this, but 130+F variation
> >>between the front and rear cylinders is HUGH. I've never seen a plane
with
> >>anywhere near that much variation.
> >>
> >>I'd take a close look at the rear baffles and the parts that wrap down
under
> >>the cylinder barrel and head fins. The length of the head baffle is to
long
> >>many times after someone has replaced it and it can restrict air flow.
The
> >>head baffle should terminate at about the same location (clock position)
as
> >>the barrel baffle. Some go so far you can even install a CHT probe.
> >>
> >>Of course there are several other areas that could be contributing to
your
> >>high CHTs. Maybe something is wrong with the forward cylinder baffling
and
> >>a lot of air is being "dumped" up at the front and thereby lowering the
> >>pressure and flow across the rear cylinders. Best get the problem
resolved
> >>before the ambient temp gets warmer.
> >>
> >>Cliff A&P/IA
> >>
> >>
> >>
> >>
> >
> >
> >________________________________ Message 2
_____________________________________
> >
> >
> >Time: 08:21:27 PM PST US
> >From: FLYaDIVE@aol.com
> >Subject: Re: TeamGrumman-List:CHT PROBES
> >
> >--> TeamGrumman-List message posted by: FLYaDIVE@aol.com
> >
> >In a message dated 3/18/04 7:56:02 PM Eastern Standard Time,
> >jnpsavage@cox.net writes:
> >
> >
> >
> >>--> TeamGrumman-List message posted by: Tiger67B <jnpsavage@cox.net>
> >>
> >> On some installations they will supply you with a thermocouple and 3
> >> bayonets for picking up CHTS's.... and they warn you that
> >> numbers can be very different.... when I put in my JPI, I made a point
> >> of getting all the same (bayonets) temp pickups, with no
> >> thermocouples...it came with at least one..
> >>
> >> Jan Savage
> >> Tiger 67B
> >>
> >>
> >================
> >Jan:
> >
> >Could you explain further? What do you mean by "I made a point of
getting
> >all the same (bayonets) temp pickups, with no thermocouples...it came
with at
> >least one.."
> >
> >Bayonet is the type of mount. Example: Bayonet and Ring/Gasket. Bayonet
is
> >a misnomer it really is a threaded mount that screws into the cylinder
head,
> >The Ring is a ring that fits under the spark plug. Which does not read
CHT's as
> >
> >accurate as a bayonet due to its location.
> >The both are thermocouples. It is called a thermocouple because of the
> >dissimilar metal junction that produces a voltage in correspondence to a
> >temperature.
> >
> >Barry
> >"Chop'd Liver"
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
> --
> Visit our PERSONAL WEBSITE at: http://www.geocities.com/tiger67bravo/
>
>
Message 3
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|
| Subject: | Main gear replacement |
--> TeamGrumman-List message posted by: TeamGrumman@aol.com
Well, good news.
It takes about 5 hours to remove the sump cover fairing, brake cover, wheel
pants, brakes, brake line, and, finally, the gear leg. The gear leg is
fractured in 3 places .. lengthwise. The two bottom bolts, AN6-24A bolts, were
bent!
Everything had a LOT of corrosion on it. I had all of the steel parts cad
plated and powder coated in white. I had the axle anodized gold. I replaced
all of the hardware. I sand blasted all of the brake caliper parts (for
both brakes), painted all of them.
Today, I put it all back together. It took about 5 hours to put it all back
together ... not including the wheel pant, sump or brake cover.
I replaced the brake lines on both brakes. Then bled the brakes. So far,
so good.
Tomorrow, I start on the nose strut replacement. I'm getting it painted in
Imron before I install it. It's getting a new wheel pant (with new hardware)
and new nose gear boot too.
Gary
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