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Old 03-07-2015, 11:16 PM   #18
LarryM
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City: League City, TX
Vessel Name: Pelago
Vessel Model: Wellcraft 3300 Coastal
Join Date: Aug 2011
Posts: 1,069
Quote:
Originally Posted by Capt.Bill11 View Post
Run a fuel line right from the first connection at the tank directly to the genset bypassing everything else that's new and see what happens.
And make it clear tubing so you can spot any air in the system, and which direction it is migrating to/from.

If that is leak free, then re-plumb using the clear tubing in every segment of the system and observe again. Something is bound to become visible at some point.

If the Racor is new, it is possible, but not very likely that you could have a leak around the cover or one of the threaded fittings. There is also an internal ball check valve and seat that could be leaking.

Finally, here is some info from Yanmar and Racor on the fuel system and filter installation. I also included a breakdown that shows the internal check valve.

Hope that helps. Good luck.
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Yanmar.JPG   Racor.JPG   Parts.JPG  
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