On a refurbishment project I installed a new fuel primer valve, a Parker 12V solenoid valve from Aircraft Spruce (part number 05-04368). From the get-go, in the "OFF" position (no voltage to the solenoid) it leaked badly causing the engine to run excessively rich.
I removed it and can verify it leaks sometimes and it seals at other times. Aircraft Spruce is willing to give me an RMA but it will take 4-6 weeks to hear back from Parker and issue a credit if they deem it defective. I'm inclined to just order another and get on with it but first ...
My question for experienced users of this particular valve is this: could it be an installation issue (e.g. is one port an input and the other an output). An additional question: how does one non-destructively open this particular valve to examine the viton plunger and its sealing surfaces? I don't want to apply any heat to break the locktite for fear of melting something inside.
Thanks,
Joe
I removed it and can verify it leaks sometimes and it seals at other times. Aircraft Spruce is willing to give me an RMA but it will take 4-6 weeks to hear back from Parker and issue a credit if they deem it defective. I'm inclined to just order another and get on with it but first ...
My question for experienced users of this particular valve is this: could it be an installation issue (e.g. is one port an input and the other an output). An additional question: how does one non-destructively open this particular valve to examine the viton plunger and its sealing surfaces? I don't want to apply any heat to break the locktite for fear of melting something inside.
Thanks,
Joe