Using Krank Vents. On deceleration and idle I am getting the loud squeaking sound which I'm guessing is the result of one of the crank seals going bad. The question is which one to replace? The sound goes away when I clutch in regardless of decelerating or idling and it comes back when I clutch out, if that helps any.

 

Does the sound go away when you remove the oil filler cap?

Are you sure the noise is coming from the engine and not the gearbox?

 

I haven't tried removing the oil filler cap, but I have removed the dipstick, and that does make the sound go away too.

My guess is leading more towards the engine, but I'm not positive. I took a drive with the krank vent removed from the intake breather tube and the sound never showed up.

If video is needed, I'll be more than happy to provide one. Just need to remind myself to bring the camera to record one on my next drive.

 

Krank Vents are known to make the Turkey / Gobbler sound, its an indication there is a vucuum in the crankcase.