Today's Message Index:
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1. 04:08 PM - Re: Induction leaks where and how did you find them (FLYaDIVE)
2. 05:53 PM - Re: Induction leaks where and how did you find them (Neal George)
Message 1
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| Subject: | Re: Induction leaks where and how did you find them |
Ralph:
If you suspect an Intake Leak on ONLY one cylinder keep your search small.
Start by:
1. REMOVING the Intake Tube.
2. Replace the Intake Gasket.
3. AND seal it with High Temp RTV.
4. CLEAN the mating surfaces.
5. Replace the rubber connection between the Intake Tube and the Engine
6. Replace the Hose Clamps with GOOD clamps of a know brand - BREEZE
Corp. Clamps.
7. Now, this is a tricky one - I had many engine problems and lost my #1
cyl in flight at least 3 times... I lost count! The problem was: There
are TWO DIFFERENT thicknesses for the intake pipe and the mounting
clamp/flange. IF you have a thin intake tube and a counter bored mounting
clamp for a thick tube you WILL have an intake leak. The way to check this
is: When you insert the intake tube in the clamp the Top of the Tube will
be FLUSH with the top of the mounting flange. If it sits below someone
messed up.
I will be reading this thread, I am VERY interested is finding out if
anyone has tricks on checking for Intake Leaks. One Trick that I know of
is to take CO2 gas and spray it around the intake joint points. IF there
is a leak the engine will stumble. This trick is Better than water as it is
a gas and can be controlled with a small diameter pipe that can be aimed.
Also no spray back.
Best of luck,
Barry
"Chop'd Liver"
On Tue, May 27, 2014 at 1:38 PM, Ralph E. Capen <recapen@earthlink.net>
wrote:
> recapen@earthlink.net>
>
> Folks,
>
> I'm still chasing a small induction leak impacting only my #1 cylinder.
> I'm trying to list all of the potential places and methods of testing.
>
> Places so far:
>
> Upper injection port fitting or plug
> Injection fitting assembly
> Lower injection port fitting or plug
> Intake runner in sump
> Intake runner connecting hose
> Intake runner pipe
> Intake runner gasket at cylinder head
> Valve cover gasket
> Rocker arm oil drain fitting at engine case
> Rocker arm oil drain fitting connection hose
> Rocker arm oil drain fitting at cylinder head
> (last four most likely with loose intake valve guide as a leak path
> contributor)
>
> Testing methods so far:
> Tighten worm clamp screws
> Replace gasket
> Replace hose
> Spraying water on suspected area with engine running (DANGER WILL
> ROBINSON!)
>
> Where have you found them and how have you found them?
>
> Thanks,
> Ralph Capen
> RV6A N822AR "Patience" @ N06 with 210 hrs on IO360B1F6 with AFP Injection
>
>
Message 2
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| Subject: | Re: Induction leaks where and how did you find |
them
Gentlemen -
You will not find RTV listed among the approved sealants for either brand o
f engine.
The only place it is acceptable is sealing gaps in baffles.
Neal George
Continental Motors
Technical Support / Customer Service
Sent from my iPhone
1. Replace the Intake Gasket.
2. AND seal it with High Temp RTV.
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