grinding sound

[signmaster]

next question, last couple of days Ive had a grinding almost gear whine sound coming from the pump is this the front bearing or the rear or both its worse under a lite load around 25-30 mph or so it has gotten pretty bad on my ride home today , tell me its an easy fix please,also my oil in the bowl goes down pretty quick I plan a rebuild on the pump over the winter but Id like a temporary fix.

[Blown 472]

Originally posted by signmaster
next question, last couple of days Ive had a grinding almost gear whine sound coming from the pump is this the front bearing or the rear or both its worse under a lite load around 25-30 mph or so it has gotten pretty bad on my ride home today , tell me its an easy fix please,also my oil in the bowl goes down pretty quick I plan a rebuild on the pump over the winter but Id like a temporary fix.
Put your hand in the clean out hole and grab the shaft, does it move up and down? does the brg feal really hot?

[TRG]

hey sign,...use blown's advice only when on the trailer and with the keys out of the ign.
you just never know!
todd

[Tn_River_Ratt]

Hey Sign, check the endplay of the shaft. I had a snapring come off and screwed up the bearing, shaft, and impeller. As for the oil level, just fill it up after each day at the lake.

[signmaster]

I tried what you guys said and theres no endplay or no slop up and down I undid the u joint and spin it buy hand and it seems pretty noisy near the front bearing I pulled the cap and it looks as if the whole pump must come apart or is there a way to get that bearing out without removing the pump

[cave]

signmaster could it be the U joint? Mine made whining & clunking sounds just before it failed. Lucky I have a drive line guard.

[Oldsquirt]

Signmaster, if you have a JC or JG pump, you need to remove the pump. It is not a difficult task, just a bunch of nuts and bolts. Take the suction housing and bowl to the work bench for servicing.
If you have a JE or JF pump(also called "insert" pumps) you will need to remove the engine to service the pump shaft and bearing, as the shaft comes out the front of the pump with the bearing. With these pumps you leave the entire suction housing in the hull during service.
If you are planning to do any of this work yourself, I highly recommend getting a copy of the "Seloc Marine Jet Drive" manual. Should be able to get it from a good boat shop or from CP Performance (http://www.cpperformance.com) or RexMarine (http://www.rexmar.com)

[signmaster]

yah its a jg pump suppose that would help, sorry . guess im doin that rebuild early I was hoping that bearing would easily pop out just to get me back out this summer thanks for the help guys.:wink:

[signmaster]

the u joints were ok.

[BigBlockBaja]

Same problem I had this weekend. The noise would come and go.. Well,,, we kept running it becuase the noise subsided, by what we found when we pulled the bowl off was bad... How much, if any, noise does a good pump make?
http://www.***boat.com/image_center/...d_impellor.JPG
http://www.***boat.com/image_center/..._impellor2.JPG
http://www.***boat.com/image_center/..._impellor3.JPG
Too bad I have an F pump.