914UL - Reason for oil in tray under carburetors

by Ian Beere in 912 / 914 Technical Questions 9 years ago

Hi

I have oil collecting in trays under each carburetor, which then blows all over the place. (Has about 2ml in tray after flight) It seems to get sorted out at each service by AMO, they say it is not a problem. Any idea where it could be coming from? Could not see the same issue on other 914s.

Oilundercarbboth.jpg (You do not have access to download this file.)

Re: 914UL - Reason for oil in tray under carburetors

by Ian Beere » 9 years ago

Ian Beere

1 1 0

HI all. Sorry I eventually found a previous question answered.

"The oil is coming from your turbo. You have a leaky check valve or the scavenge pump is blocked with coke."

This is on a 580 hour Sling2 experimental I am looking to purchase. It has an Airmaster VP prop. The owner said he would operate it at high power settings, but not exceeding the maximum.

Would there be a concern with buying this engine?
Suggested pre-purchase investigations?

Thanks

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Re: 914UL - Reason for oil in tray under carburetors

by Roger Lee » 9 years ago

Roger Lee

128 5.28k 4.98k

Hi Ian,

If you are using 100LL then that is what that is or just dirty 91 oct. most of the time. Most likely this is coming from the carb bowl gasket. replace the gasket and torque the bowl bolt properly.

Roger Lee
LSRM-A & Rotax Instructor & Rotax IRC
Tucson, AZ Ryan Airfield (KRYN)
520-349-7056 Cell

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914UL - Reason for oil in tray under carburetors

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