Today's Message Index:
----------------------
1. 05:03 AM - Re: Oil cooler tube (Rob Kermanj)
2. 05:14 AM - Re: Oil cooler tube (Linn Walters)
3. 05:23 AM - Re: Oil cooler tube (Shannon Hicks)
4. 07:25 AM - Re: Oil cooler tube (Rob Kermanj)
5. 07:28 AM - Re: Oil cooler tube (Rob Kermanj)
6. 12:22 PM - Re: Lycoming O-360 Fuel Flow Rate (Matt Dralle)
7. 01:23 PM - Re: Re: Lycoming O-360 Fuel Flow Rate (Pascal)
8. 02:20 PM - Re: RV-List: Re: Lycoming O-360 Fuel Flow Rate (vanremog@aol.com)
Message 1
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| Subject: | Re: Oil cooler tube |
Thanks Shannon,
I thought there was an outfit that fabricated finished ends so the wire woul
d not fight and stab the installer. So far no luck in locating one.
Do not archive.
Rob Kermanj
Sent from my iPad
> On Dec 21, 2015, at 8:41 AM, Shannon Hicks <civeng123@gmail.com> wrote:
>
> Rob,
> I believe the scat tube is just the normal stuff you can order at Aircraft
Spruce. http://www.aircraftspruce.com/catalog/appages/scat.php 05-29916.
>
>
> Shannon Hicks
> Waiting on Glo Custom!
>
>
>> On Mon, Dec 21, 2015 at 8:31 AM, Rob Kermanj <flysrv10@gmail.com> wrote:
>> Talking about the 4" scat.
>>
>> I will,look him up. Thanks for the info.
>>
>> Rob Kermanj
>> Sent from my iPad
>>
>>> On Dec 21, 2015, at 7:10 AM, Kelly McMullen <apilot2@gmail.com> wrote:
>>>
>>> Are you talking about the 4" scat tube, or one of the oil hoses? I'm not
aware of a prefab unit for the former. The hoses are available from Vans or
most any hose shop can make to order. Bill Curtis used to have the hose num
bers and specifications on his website, might still be there.
>>>
>>>> On Mon, Dec 21, 2015 at 6:40 AM, Rob Kermanj <flysrv10@gmail.com> wrote
:
>>>>
>>>> Anyone has a source for the oil cooler tube, prefabricated with finishe
d ends?
>>>>
>>>> Thanks.
>>>>
>>>> Sent from my iPad
>>>>
>>>> Do not archive
>>>>
>>>> ==========
>>>> br> fts!)
>>>> r> > w.buildersbooks.com" rel="noreferrer" target="_blank">www.buil
dersbooks.com
>>>> rel="noreferrer" target="_blank">http://www.matronics.com/contribut
ion
>>>> -Matt Dralle, List Admin.
>>>> ==========
>>>> -List" rel="noreferrer" target="_blank">http://www.matronics.com/Na
vigator?RV10-List
>>>> ==========
>>>> FORUMS -
>>>> eferrer" target="_blank">http://forums.matronics.com
>>>> ==========
>>>> b Site -
>>>> -Matt Dralle, List Admin.
>>>> rel="noreferrer" target="_blank">http://www.matronics.com/contribut
ion
>>>> ==========
>
Message 2
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| Subject: | Re: Oil cooler tube |
This fix is easy .....
Once the scat tube is cut to length, pill out the wire so you have 1/2"
or so of the duct without any wire. put a 'loop' in the end of the wire
so the end is away from the tube and stuff the wire back inside the
tube. You will end up with the wire down inside the tube and the loop
keeps the end from poking through it. The wire does not go on the flange.
Linn
On 12/22/2015 7:59 AM, Rob Kermanj wrote:
> Thanks Shannon,
>
> I thought there was an outfit that fabricated finished ends so the
> wire would not fight and stab the installer. So far no luck in
> locating one.
>
> Do not archive.
>
> Rob Kermanj
> Sent from my iPad
>
> On Dec 21, 2015, at 8:41 AM, Shannon Hicks <civeng123@gmail.com
> <mailto:civeng123@gmail.com>> wrote:
>
>> Rob,
>> I believe the scat tube is just the normal stuff you can order at
>> Aircraft Spruce.
>> http://www.aircraftspruce.com/catalog/appages/scat.php 05-29916.
>>
>>
>> Shannon Hicks
>> Waiting on Glo Custom!
>>
>>
>> On Mon, Dec 21, 2015 at 8:31 AM, Rob Kermanj <flysrv10@gmail.com
>> <mailto:flysrv10@gmail.com>> wrote:
>>
>> Talking about the 4" scat.
>>
>> I will,look him up. Thanks for the info.
>>
>> Rob Kermanj
>> Sent from my iPad
>>
>> On Dec 21, 2015, at 7:10 AM, Kelly McMullen <apilot2@gmail.com
>> <mailto:apilot2@gmail.com>> wrote:
>>
>>> Are you talking about the 4" scat tube, or one of the oil hoses?
>>> I'm not aware of a prefab unit for the former. The hoses are
>>> available from Vans or most any hose shop can make to order.
>>> Bill Curtis used to have the hose numbers and specifications on
>>> his website, might still be there.
>>>
>>> On Mon, Dec 21, 2015 at 6:40 AM, Rob Kermanj <flysrv10@gmail.com
>>> <mailto:flysrv10@gmail.com>> wrote:
>>>
>>> <flysrv10@gmail.com <mailto:flysrv10@gmail.com>>
>>>
>>> Anyone has a source for the oil cooler tube, prefabricated
>>> with finished ends?
>>>
>>> Thanks.
>>>
>>> Sent from my iPad
>>>
>>> Do not archive
>>>
>>> ==========
>>> br> fts!)
>>> r> > w.buildersbooks.com <http://w.buildersbooks.com>"
>>> rel="noreferrer" target="_blank">www.buildersbooks.com
>>> <http://www.buildersbooks.com>
>>> rel="noreferrer"
>>> target="_blank">http://www.matronics.com/contribution
>>> -Matt Dralle, List Admin.
>>> ==========
>>> -List" rel="noreferrer"
>>> target="_blank">http://www.matronics.com/Navigator?RV10-List
>>> ==========
>>> FORUMS -
>>> eferrer" target="_blank">http://forums.matronics.com
>>> ==========
>>> b Site -
>>> -Matt Dralle, List Admin.
>>> rel="noreferrer"
>>> target="_blank">http://www.matronics.com/contribution
>>> ==========
>>>
>>>
>>>
>>>
>>
Message 3
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| Subject: | Re: Oil cooler tube |
Rob,
I hear ya. I used to hate dealing with SCAT hose until someone showed me
how. Here is an EAA video on one easy technique.
http://www.eaavideo.org/video.aspx?v=971229645001
Good luck!
Shannon Hicks
On Tue, Dec 22, 2015 at 6:59 AM, Rob Kermanj <flysrv10@gmail.com> wrote:
> Thanks Shannon,
>
> I thought there was an outfit that fabricated finished ends so the wire
> would not fight and stab the installer. So far no luck in locating one.
>
> Do not archive.
>
> Rob Kermanj
> Sent from my iPad
>
> On Dec 21, 2015, at 8:41 AM, Shannon Hicks <civeng123@gmail.com> wrote:
>
> Rob,
> I believe the scat tube is just the normal stuff you can order at Aircraft
> Spruce. http://www.aircraftspruce.com/catalog/appages/scat.php 05-29916.
>
>
> Shannon Hicks
> Waiting on Glo Custom!
>
>
> On Mon, Dec 21, 2015 at 8:31 AM, Rob Kermanj <flysrv10@gmail.com> wrote:
>
>> Talking about the 4" scat.
>>
>> I will,look him up. Thanks for the info.
>>
>> Rob Kermanj
>> Sent from my iPad
>>
>> On Dec 21, 2015, at 7:10 AM, Kelly McMullen <apilot2@gmail.com> wrote:
>>
>> Are you talking about the 4" scat tube, or one of the oil hoses? I'm not
>> aware of a prefab unit for the former. The hoses are available from Vans or
>> most any hose shop can make to order. Bill Curtis used to have the hose
>> numbers and specifications on his website, might still be there.
>>
>> On Mon, Dec 21, 2015 at 6:40 AM, Rob Kermanj <flysrv10@gmail.com> wrote:
>>
>>>
>>> Anyone has a source for the oil cooler tube, prefabricated with finished
>>> ends?
>>>
>>> Thanks.
>>>
>>> Sent from my iPad
>>>
>>> Do not archive
>>>
>>> ==========
>>> br> fts!)
>>> r> > w.buildersbooks.com" rel="noreferrer" target="_blank">
>>> www.buildersbooks.com
>>> rel="noreferrer" target="_blank">http://www.matronics.com/contribution
>>> -Matt Dralle, List Admin.
>>> ==========
>>> -List" rel="noreferrer" target="_blank">
>>> http://www.matronics.com/Navigator?RV10-List
>>> ==========
>>> FORUMS -
>>> eferrer" target="_blank">http://forums.matronics.com
>>> ==========
>>> b Site -
>>> -Matt Dralle, List Admin.
>>> rel="noreferrer" target="_blank">http://www.matronics.com/contribution
>>> ==========
>>>
>>>
>>>
>>>
>>
>
Message 4
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| Subject: | Re: Oil cooler tube |
Thanks a bunch. Great video.
Rob Kermanj
Sent from my iPad
> On Dec 22, 2015, at 6:19 AM, Shannon Hicks <civeng123@gmail.com> wrote:
>
> Rob,
> I hear ya. I used to hate dealing with SCAT hose until someone showed me h
ow. Here is an EAA video on one easy technique.
>
> http://www.eaavideo.org/video.aspx?v=971229645001
>
> Good luck!
>
> Shannon Hicks
>
>
>> On Tue, Dec 22, 2015 at 6:59 AM, Rob Kermanj <flysrv10@gmail.com> wrote:
>> Thanks Shannon,
>>
>> I thought there was an outfit that fabricated finished ends so the wire w
ould not fight and stab the installer. So far no luck in locating one.
>>
>> Do not archive.
>>
>> Rob Kermanj
>> Sent from my iPad
>>
>>> On Dec 21, 2015, at 8:41 AM, Shannon Hicks <civeng123@gmail.com> wrote:
>>>
>>> Rob,
>>> I believe the scat tube is just the normal stuff you can order at Aircra
ft Spruce. http://www.aircraftspruce.com/catalog/appages/scat.php 05-29916
.
>>>
>>>
>>> Shannon Hicks
>>> Waiting on Glo Custom!
>>>
>>>
>>>> On Mon, Dec 21, 2015 at 8:31 AM, Rob Kermanj <flysrv10@gmail.com> wrote
:
>>>> Talking about the 4" scat.
>>>>
>>>> I will,look him up. Thanks for the info.
>>>>
>>>> Rob Kermanj
>>>> Sent from my iPad
>>>>
>>>>> On Dec 21, 2015, at 7:10 AM, Kelly McMullen <apilot2@gmail.com> wrote:
>>>>>
>>>>> Are you talking about the 4" scat tube, or one of the oil hoses? I'm n
ot aware of a prefab unit for the former. The hoses are available from Vans o
r most any hose shop can make to order. Bill Curtis used to have the hose nu
mbers and specifications on his website, might still be there.
>>>>>
>>>>>> On Mon, Dec 21, 2015 at 6:40 AM, Rob Kermanj <flysrv10@gmail.com> wro
te:
>>>>>>
>>>>>> Anyone has a source for the oil cooler tube, prefabricated with finis
hed ends?
>>>>>>
>>>>>> Thanks.
>>>>>>
>>>>>> Sent from my iPad
>>>>>>
>>>>>> Do not archive
>>>>>>
>>>>>> ==========
>>>>>> br> fts!)
>>>>>> r> > w.buildersbooks.com" rel="noreferrer" target="_blank">www.bu
ildersbooks.com
>>>>>> rel="noreferrer" target="_blank">http://www.matronics.com/contrib
ution
>>>>>> -Matt Dralle, List Admin.
>>>>>> ==========
>>>>>> -List" rel="noreferrer" target="_blank">http://www.matronics.com/
Navigator?RV10-List
>>>>>> ==========
>>>>>> FORUMS -
>>>>>> eferrer" target="_blank">http://forums.matronics.com
>>>>>> ==========
>>>>>> b Site -
>>>>>> -Matt Dralle, List Admin.
>>>>>> rel="noreferrer" target="_blank">http://www.matronics.com/contrib
ution
>>>>>> ==========
>
Message 5
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| Subject: | Re: Oil cooler tube |
Thanks Lynn. Got it.
Rob Kermanj
Sent from my iPad
> On Dec 22, 2015, at 6:10 AM, Linn Walters <flying-nut@cfl.rr.com> wrote:
>
> This fix is easy .....
> Once the scat tube is cut to length, pill out the wire so you have 1/2" or
so of the duct without any wire. put a 'loop' in the end of the wire so th
e end is away from the tube and stuff the wire back inside the tube. You wi
ll end up with the wire down inside the tube and the loop keeps the end from
poking through it. The wire does not go on the flange.
> Linn
>
>
>> On 12/22/2015 7:59 AM, Rob Kermanj wrote:
>> Thanks Shannon,
>>
>> I thought there was an outfit that fabricated finished ends so the wire w
ould not fight and stab the installer. So far no luck in locating one.
>>
>> Do not archive.
>>
>> Rob Kermanj
>> Sent from my iPad
>>
>> On Dec 21, 2015, at 8:41 AM, Shannon Hicks <civeng123@gmail.com> wrote:
>>
>>> Rob,
>>> I believe the scat tube is just the normal stuff you can order at Aircra
ft Spruce. http://www.aircraftspruce.com/catalog/appages/scat.php 05-29916
.
>>>
>>>
>>> Shannon Hicks
>>> Waiting on Glo Custom!
>>>
>>>
>>>> On Mon, Dec 21, 2015 at 8:31 AM, Rob Kermanj <flysrv10@gmail.com> wrote
:
>>>> Talking about the 4" scat.
>>>>
>>>> I will,look him up. Thanks for the info.
>>>>
>>>> Rob Kermanj
>>>> Sent from my iPad
>>>>
>>>> On Dec 21, 2015, at 7:10 AM, Kelly McMullen <apilot2@gmail.com> wrote:
>>>>
>>>>> Are you talking about the 4" scat tube, or one of the oil hoses? I'm n
ot aware of a prefab unit for the former. The hoses are available from Vans o
r most any hose shop can make to order. Bill Curtis used to have the hose nu
mbers and specifications on his website, might still be there.
>>>>>
>>>>>> On Mon, Dec 21, 2015 at 6:40 AM, Rob Kermanj <flysrv10@gmail.com> wro
te:
>>>>>>
>>>>>> Anyone has a source for the oil cooler tube, prefabricated with finis
hed ends?
>>>>>>
>>>>>> Thanks.
>>>>>>
>>>>>> Sent from my iPad
>>>>>>
>>>>>> Do not archive
>>>>>>
>>>>>> ==========
>>>>>> br> fts!)
>>>>>> r> > w.buildersbooks.com" rel="noreferrer" target="_blank">www.bu
ildersbooks.com
>>>>>> rel="noreferrer" target="_blank">http://www.matronics.com/contrib
ution
>>>>>> -Matt Dralle, List Admin.
>>>>>> ==========
>>>>>> -List" rel="noreferrer" target="_blank">http://www.matronics.com/
Navigator?RV10-List
>>>>>> ==========
>>>>>> FORUMS -
>>>>>> eferrer" target="_blank">http://forums.matronics.com
>>>>>> ==========
>>>>>> b Site -
>>>>>> -Matt Dralle, List Admin.
>>>>>> rel="noreferrer" target="_blank">http://www.matronics.com/contrib
ution
>>>>>> ==========
>
Message 6
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| Subject: | Re: Lycoming O-360 Fuel Flow Rate |
Well, it was probably the fuel pump. I think my flow rates right after replacing
the fuel pump (but before I replaced the carb) were probably alright as they
were similar to what I saw after the new carb. But, it was time for a new carb
anyway, so I guess it worked out. Btw, as if all of this debacle wasn't frustrating
enough, last weekend while trying to test all of this, the battery
went dead. Checking the logs it was 36 months ago since I replaced it the last
time. Guess that's about right. Sigh. Is it time to fly it yet? I've been
working on it enough lately. ;-)
Matt Dralle
RV-8 #82880 N998RV "Ruby Vixen"
http://www.mattsrv8.com - Matt's Complete RV-8 Construction Log
http://www.mattsrv8.com/Mishap - Landing Mishap Rebuild Log
http://www.youtube.com/MattsRV8 - Matt's RV-8 HDTV YouTube Channel
Status: 210+ Hours TTSN - Version 2.0 Now Flying!
RV-6 #20916 N360EM "The Flyer"
http://www.mattsrv6.com - Matt's RV-6 Revitalization Log
Status: 300+ Hours - Full Flyer Mode!
Matt's Livermore Airport Live ATC Stream!
Check out the live ATC stream directly from my hangar at the Livermore
Airport. Includes both Tower and Ground transmissions. Archives too!
For entertainment purposes only.
At 10:24 AM 12/21/2015 Monday, you wrote:
>So what did you do to fix the problem Matt?
>
>Harry Crosby
>
>
>----------
>From: "Matt Dralle" <dralle@matronics.com>
>To: "RV-List" <rv-list@matronics.com>, LycomingEngines-list@matronics.com, rv6-list@matronics.com,
rv10-list@matronics.com
>Sent: Saturday, December 19, 2015 12:44:41 PM
>Subject: RV-List: Re: Lycoming O-360 Fuel Flow Rate
>
>--> RV-List message posted by: Matt Dralle <dralle@matronics.com>
>
>Thank you to everyone that responded!! There were some great comments that got
me going down the right path.
>
>Last night I got the cowling back on and took the RV-6 out on the runway and ran
it up to full power with the intent of carefully watching the flow rate and
aborting the take off if the flow wasn't sufficiently high enough. I'm happy
to report that the flow rate climbed nicely up though the teens as my takeoff
roll progressed. I lifted off around 15-16 gph and decided to take it around
the pattern. As I climbed through the crosswind to downwind turn I noted that
the flow was in the 18.5gph range, RPM was at 2700, and EGTs were low 1300's.
After a few more loops around the pattern everything seemed to be working as
expected. I took it out of the pattern and dialed it into my normal cruse configuration
which is typically 75% power at 2250 RPM and leaned to about 1425
on the hottest EGT. Everything sounded and felt fine. Flow was right at 9.5
GPH per usual.
>
>The only weird thing I noticed was at about 1700 RPM. When I turn from Downwind
to Base and go from idle to about 2000 RPM like I usually do, right about 1700
RPM the engine kind of sags and then picks back up. It is very repeatable.
Strangely there is no sag on the ground after a touch and go when I push the
throttle in fast going from idle to full power anymore like there was with the
old carb.
>
>Does anyone have any idea what that sag at 1700 is? Is there a nurd knob on the
carb for this specifically?
>
>Thanks again for the great feedback!
>
>Matt Dralle
>
>
>At 02:38 PM 12/18/2015 Friday, Matt Dralle wrote:
>
>>I'm still chasing down this weird problem with low fuel flow rates on the RV-6.
I've replaced the mechanical fuel pump and got a rebuilt 4-5 carburetor, both
of which were well over do for replacement/overhaul anyway. I haven't put
the cowling back on yet, but I did a static run up to about 2350-2400 and am
seeing about 9gph, which seems low to me?
>>
>>I pulled the fuel line off the carburetor and turned the electric fuel pump on
and saw about 21 GPH flow. Is that considered "normal" or too low?
>>
>>Thanks for the feedback,
>>
>>Matt
>
>-
>Matt Dralle
Message 7
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| Subject: | Re: Lycoming O-360 Fuel Flow Rate |
Matt;
I run a battery excerciser, or in my case a Battery tender and have had
the battery for 5 years, still going strong. if you arent keeping the
battery excercised that may be the issue with a 3 year life span. Or
maybe that is normal for aircraft batteries? I am using a wheel chair
battery. (UB12350)
Pascal
On 12/22/2015 12:18 PM, Matt Dralle wrote:
>
> Well, it was probably the fuel pump. I think my flow rates right after replacing
the fuel pump (but before I replaced the carb) were probably alright as they
were similar to what I saw after the new carb. But, it was time for a new
carb anyway, so I guess it worked out. Btw, as if all of this debacle wasn't
frustrating enough, last weekend while trying to test all of this, the battery
went dead. Checking the logs it was 36 months ago since I replaced it the last
time. Guess that's about right. Sigh. Is it time to fly it yet? I've been
working on it enough lately. ;-)
>
> Matt Dralle
>
> RV-8 #82880 N998RV "Ruby Vixen"
> http://www.mattsrv8.com - Matt's Complete RV-8 Construction Log
> http://www.mattsrv8.com/Mishap - Landing Mishap Rebuild Log
> http://www.youtube.com/MattsRV8 - Matt's RV-8 HDTV YouTube Channel
> Status: 210+ Hours TTSN - Version 2.0 Now Flying!
>
> RV-6 #20916 N360EM "The Flyer"
> http://www.mattsrv6.com - Matt's RV-6 Revitalization Log
> Status: 300+ Hours - Full Flyer Mode!
>
> Matt's Livermore Airport Live ATC Stream!
> Check out the live ATC stream directly from my hangar at the Livermore
> Airport. Includes both Tower and Ground transmissions. Archives too!
> For entertainment purposes only.
>
>
> At 10:24 AM 12/21/2015 Monday, you wrote:
>> So what did you do to fix the problem Matt?
>>
>> Harry Crosby
>>
>>
>> ----------
>> From: "Matt Dralle" <dralle@matronics.com>
>> To: "RV-List" <rv-list@matronics.com>, LycomingEngines-list@matronics.com, rv6-list@matronics.com,
rv10-list@matronics.com
>> Sent: Saturday, December 19, 2015 12:44:41 PM
>> Subject: RV-List: Re: Lycoming O-360 Fuel Flow Rate
>>
>> --> RV-List message posted by: Matt Dralle <dralle@matronics.com>
>>
>> Thank you to everyone that responded!! There were some great comments that
got me going down the right path.
>>
>> Last night I got the cowling back on and took the RV-6 out on the runway and
ran it up to full power with the intent of carefully watching the flow rate and
aborting the take off if the flow wasn't sufficiently high enough. I'm happy
to report that the flow rate climbed nicely up though the teens as my takeoff
roll progressed. I lifted off around 15-16 gph and decided to take it around
the pattern. As I climbed through the crosswind to downwind turn I noted that
the flow was in the 18.5gph range, RPM was at 2700, and EGTs were low 1300's.
After a few more loops around the pattern everything seemed to be working
as expected. I took it out of the pattern and dialed it into my normal cruse
configuration which is typically 75% power at 2250 RPM and leaned to about 1425
on the hottest EGT. Everything sounded and felt fine. Flow was right at 9.5
GPH per usual.
>>
>> The only weird thing I noticed was at about 1700 RPM. When I turn from Downwind
to Base and go from idle to about 2000 RPM like I usually do, right about
1700 RPM the engine kind of sags and then picks back up. It is very repeatable.
Strangely there is no sag on the ground after a touch and go when I push
the throttle in fast going from idle to full power anymore like there was with
the old carb.
>>
>> Does anyone have any idea what that sag at 1700 is? Is there a nurd knob on
the carb for this specifically?
>>
>> Thanks again for the great feedback!
>>
>> Matt Dralle
>>
>>
>>
>> At 02:38 PM 12/18/2015 Friday, Matt Dralle wrote:
>>
>>> I'm still chasing down this weird problem with low fuel flow rates on the RV-6.
I've replaced the mechanical fuel pump and got a rebuilt 4-5 carburetor,
both of which were well over do for replacement/overhaul anyway. I haven't put
the cowling back on yet, but I did a static run up to about 2350-2400 and am
seeing about 9gph, which seems low to me?
>>>
>>> I pulled the fuel line off the carburetor and turned the electric fuel pump
on and saw about 21 GPH flow. Is that considered "normal" or too low?
>>>
>>> Thanks for the feedback,
>>>
>>> Matt
>> -
>> Matt Dralle
>
>
Message 8
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| Subject: | Re: RV-List: Re: Lycoming O-360 Fuel Flow Rate |
It's just the engineer in me, but I always like to do post mortems with failed
components. In the case of the pump, I would want to understand what in the pump
caused the blockage or failure to pump per spec. In the case of the carb
I would want to understand if the main jet, float, filter or ??? were hosed.
-GV
-----Original Message-----
From: Matt Dralle <dralle@matronics.com>
Sent: Tue, Dec 22, 2015 12:21 pm
Subject: RV-List: Re: Lycoming O-360 Fuel Flow Rate
--> RV-List message posted by: Matt Dralle <dralle@matronics.com>
Well, it was probably the fuel pump. I think my flow rates right after replacing
the fuel pump (but before I replaced the carb) were probably alright as they
were similar to what I saw after the new carb. But, it was time for a new carb
anyway, so I guess it worked out. Btw, as if all of this debacle wasn't frustrating
enough, last weekend while trying to test all of this, the battery
went dead. Checking the logs it was 36 months ago since I replaced it the last
time. Guess that's about right. Sigh. Is it time to fly it yet? I've been
working on it enough lately. ;-)
Matt Dralle
RV-8 #82880 N998RV "Ruby Vixen"
http://www.mattsrv8.com - Matt's Complete RV-8 Construction Log
http://www.mattsrv8.com/Mishap - Landing Mishap Rebuild Log
http://www.youtube.com/MattsRV8 - Matt's RV-8 HDTV YouTube Channel
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At 10:24 AM 12/21/2015 Monday, you wrote:
>So what did you do to fix the problem Matt?
>
>Harry Crosby
>
>
>----------
>From: "Matt Dralle" <dralle@matronics.com>
>To: "RV-List" <rv-list@matronics.com>, LycomingEngines-list@matronics.com, rv6-list@matronics.com,
rv10-list@matronics.com
>Sent: Saturday, December 19, 2015 12:44:41 PM
>Subject: RV-List: Re: Lycoming O-360 Fuel Flow Rate
>
>--> RV-List message posted by: Matt Dralle <dralle@matronics.com>
>
>Thank you to everyone that responded!! There were some great comments that got
me going down the right path.
>
>Last night I got the cowling back on and took the RV-6 out on the runway and ran
it up to full power with the intent of carefully watching the flow rate and
aborting the take off if the flow wasn't sufficiently high enough. I'm happy
to report that the flow rate climbed nicely up though the teens as my takeoff
roll progressed. I lifted off around 15-16 gph and decided to take it around
the pattern. As I climbed through the crosswind to downwind turn I noted that
the flow was in the 18.5gph range, RPM was at 2700, and EGTs were low 1300's.
After a few more loops around the pattern everything seemed to be working as
expected. I took it out of the pattern and dialed it into my normal cruse configuration
which is typically 75% power at 2250 RPM and leaned to about 1425
on the hottest EGT. Everything sounded and felt fine. Flow was right at 9.5
GPH per usual.
>
>The only weird thing I noticed was at about 1700 RPM. When I turn from Downwind
to Base and go from idle to about 2000 RPM like I usually do, right about 1700
RPM the engine kind of sags and then picks back up. It is very repeatable.
Strangely there is no sag on the ground after a touch and go when I push the
throttle in fast going from idle to full power anymore like there was with the
old carb.
>
>Does anyone have any idea what that sag at 1700 is? Is there a nurd knob on the
carb for this specifically?
>
>Thanks again for the great feedback!
>
>Matt Dralle
>
>
>At 02:38 PM 12/18/2015 Friday, Matt Dralle wrote:
>
>>I'm still chasing down this weird problem with low fuel flow rates on the RV-6.
I've replaced the mechanical fuel pump and got a rebuilt 4-5 carburetor, both
of which were well over do for replacement/overhaul anyway. I haven't put
the cowling back on yet, but I did a static run up to about 2350-2400 and am
seeing about 9gph, which seems low to me?
>>
>>I pulled the fuel line off the carburetor and turned the electric fuel pump on
and saw about 21 GPH flow. Is that considered "normal" or too low?
>>
>>Thanks for the feedback,
>>
>>Matt
>
>-
>Matt Dralle
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