SoCal Jet Boats

Tech Talk => Jet Pumps => Topic started by: billymachete on July 26, 2016, 08:05:01 PM

Title: "Slipping" and a bit of a shake on Jacuzzi wj
Post by: billymachete on July 26, 2016, 08:05:01 PM

I hit the lake and noticed that my boat seems to be Slipping when I'm trying to get it up on plane and it has a bit if a shudder...I did previously have a shit load of grass in it...any thoughts?

Title: Re: "Slipping" and a bit of a shake on Jacuzzi wj
Post by: GT Jets on July 26, 2016, 08:52:08 PM

Recheck it for debris, it don't take much.

GT

Title: Re: "Slipping" and a bit of a shake on Jacuzzi wj
Post by: billymachete on July 26, 2016, 09:30:01 PM

What's the best way to look and or find debri?...

Title: Re: "Slipping" and a bit of a shake on Jacuzzi wj
Post by: mash on it on July 27, 2016, 05:18:03 AM

Quote from: billymachete on July 26, 2016, 09:30:01 PM

What's the best way to look and or find debri?...

Inside the transom is a cleanout/inspection cover. if this is not accessible, then look up through the rock grate/intake for debris.

Take a close look at the U-joints for a vibration, too. Wrong flywheel/flexplate and/or balancer can produce a vibration, too.

The WJ pump has a plastic wear ring. If it has EVER been run on the hose, it needs a new one. This, along with shimming the front bearing will help if not eliminate the 'slipping'. Poor impeller condition will make it slip (cavatate) too.

Dan'l

Title: Re: "Slipping" and a bit of a shake on Jacuzzi wj
Post by: GT Jets on July 27, 2016, 05:58:31 AM

Quote from: mash on it on July 27, 2016, 05:18:03 AM

Inside the transom is a cleanout/inspection cover. if this is not accessible, then look up through the rock grate/intake for debris.

Take a close look at the U-joints for a vibration, too. Wrong flywheel/flexplate and/or balancer can produce a vibration, too.

The WJ pump has a plastic wear ring. If it has EVER been run on the hose, it needs a new one. This, along with shimming the front bearing will help if not eliminate the 'slipping'. Poor impeller condition will make it slip (cavatate) too.

Dan'l

^^^^ What he said.

GT

Title: Re: "Slipping" and a bit of a shake on Jacuzzi wj
Post by: billymachete on July 27, 2016, 06:01:17 PM

Yep...ran it with a hose the other day...one in motor...one in pump...can I replace wear ring fairly easily?

Title: Re: "Slipping" and a bit of a shake on Jacuzzi wj
Post by: mash on it on July 28, 2016, 07:55:40 AM

Need to check the front to rear clearance on the wear ring.

Replacing the wear ring isnt hard. Just time consuming.

Remove transom adapter. Then bowl. Then impeller. Wear ring has 4 'screws' holding it in.

This is a good time to check out the impeller.

Dan'l