Question Correct Drain Valve operation

17 Mar 2024 08:33 #4238 by STEVE ELLS
Replied by STEVE ELLS on topic Correct Drain Valve operation
Hi Helio;

I believe that valve is to ensure that any fuel in the induction system drains out when the engine is shut down. If I'm correct, it is a one way check valve. 

The test for a one way check valve is:
Apply pressure to the tube end--no restriction in airflow
Apply pressure to the fitting (threaded end)--no airflow.


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  • Helio Mario Pimentel
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15 Mar 2024 11:32 #4236 by Helio Mario Pimentel
Correct Drain Valve operation was created by Helio Mario Pimentel
Can anyone give us a comment about the drain valve  P/N 41287-00?as:- is there any test we can do to check that it works perfectly?
- we bought a new one, but we suspect it is not blocking the flow correctly when we blow through our mouth.  Thanks a lot,
Helio Mario - Brasil 

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