Breaking in a Rebuilt engine... During break in I noticed a slow steady stream of water coming from where the drive line goes into the Berkeley pump only at RPMs over 2500 no leaking @ Idle or when sitting (the Boat sat dry for over 3yrs)...   I also noticed a random medium vibration when in forward, neutral or reverse at idle.. I replaced the U-Joint that goes directly into the pump..  FYI i am a seasoned boater, but new to the Jet World...   Any advise would be welcome....



Thanks ~E~   

what type of berk pump? some have a "packing seal" that seals the pump shaft in the suction housing. over time the seal wears and you need to snug the nuts that hold it.  after a while it just needs to be replaced.  a pic would help a LOT in this case. as far as vibration who knows, how does the impeller look?  any huge chips in it, or a rock wedged in the vanes?  id recommend not running it anymore until you get that sorted out.

Yes Eric, I felt the vibration... Let's see what other's think it maybe when they chime in.

Only at Idol..   The Jet feels good out of the hole, I ran it up to 4500RPM (40+mph) with no problems. Ran her most of the day 20+ Gal of gas at around 3500RPM.... Everything seems smooth! I just want to make sure all is good befor I take her to Parker...

Thanks
~E~

Thanks David I will try that! I dont remember any vibration when I ran it in the driveway...