Re: FW: engine quitting

[Mi Vida Loca]

At 06:10 AM 6/9/98 -0500, you wrote:
>Tom Laird-McConnell wrote:
>>
>> >From MAX, not me!
>>
>> -Tom
>>
>> -----Original Message-----
>> From: Max F55424 [mailto:[EMAIL PROTECTED]
>> Sent: Tuesday, May 26, 1998 8:56 PM
>> To: [EMAIL PROTECTED]
>> Subject: engine quitting
>>
>> I recently started flying a friends 415c and it was fine when one time on
>> climb out at 5500' the engine sputtered and surged I was going bout 80 MPH
>> full throttle in 80 degree weather the airport Is 1000' ........so I
>> 1. checked fuel valves and header tank full
>> 2. leaned the carb-----the engine quit completely
>> 3. full rich and decending flight the engine began running again to 120 mph
>> 4. turned carb heat on --------no response------decended for an uneventfull
>> landing and taxi
>> 5. did ground runup everything ran fine
>> 6. checked all lines sent carb to A/C fuel specialties and had it yellow
>> tag
>> rebuilt
>> 7. checked gascolator
>> 8. checked for manifold inlet leaks
>> 9. checked fuel flow thu and past gascolator -----approx 17gph
>> 10. checked exaust for obstructons
>> 11. checked gas cap lids clear, holes facing forward and tite
>> 12. checked header tank for obstructions and refilled with new mogas
>> 13. checked mags
>> 14. did 9 minute full throttle ground runup (until temp went up)-everything
>> fine
>>
>> I went flying and this time the same thing happened at 3200' once again at
>> full throttle climb attitude at 75 mph and an uneventful landing
>>
>> I have no Idea what else to do and my mechanic is stumped any suggestions
>> can u post this on your site and mabey someone can enlighten me??
>> my ph # is 818-494-1142
>
>I've heard of fuel lines which collapsed internally but looked fine on
>the outside. I've also heard that mechanics are finding a lot of
>deteriorating fuel lines. I just had all mine replace at the recently
>finished annual.
>
>There is sometimes a problem with the neoprene needle valve in the
>carborator swelling when soaked with fuel. It's sometimes recommended
>to replace the neoprene kind with a steel one (if you can find one).
>
>I once had an excessivly lean condition because my fiber air filter was
>releasing fibers which clogged the small vacuum tube between the venturi
>and the mixture control plate on my Stromberg carb. This happened in
>flight as I descended from high altitude. Fortunately, I was pretty
>close to the nearest airport.
>
>Though none of these may apply to your situation, they should, perhaps,
>be ruled out.
>
>Keep us posted on your success in resolving this.
>--
>Ed Burkhead
>East Peoria, Ill.
>N3802H, 415-D
>
Sounds a lot like vapor lock, are you running Mogas?




Dave
41 Charlie
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