SoCal Jet Boats

Tech Talk => Jet Pumps => Topic started by: 87hardin on June 03, 2015, 06:09:55 PM

Title: Vibration at idle.
Post by: 87hardin on June 03, 2015, 06:09:55 PM

Hopefully someone can help out. getting a vibration it seems like at idle, and it goes away at higher rpms. was thinking it was the exhaust the way the boat sits in the water and the swim steps above the tips. I have heard that the engine would have to be pulled out to replace the u joints, how hard would that be?

Title: Re: Vibration at idle.
Post by: jyeager on June 03, 2015, 06:41:10 PM

U joints maybe. Also if you have a stainless impeller it will make a bit of noise


Sent from McIntyre park

Title: Re: Vibration at idle.
Post by: Flusher on June 03, 2015, 07:01:37 PM

Check to see if there is a lot of slop in the splines of the drive line and pump shaft.  Try rotating the pump shaft back and forth through the hand hole cover or through the intake.

Title: Re: Vibration at idle.
Post by: 87hardin on June 03, 2015, 07:25:42 PM

Ok thank you for the help.