Pump bearing install tips.

[spaceman]

is it possible to reinstall the driveshaft into the stator housing using the old bearings? I removed the driveshaft thinking I had to in order to remove the impeller. If so I would only need to replace the 2 seals correct?

Don't risk it, get new bearings. The shaft and your bearings will be spinning around 7200 rpm

[darkcloud]

is it possible to reinstall the driveshaft into the stator housing using the old bearings? I removed the driveshaft thinking I had to in order to remove the impeller. If so I would only need to replace the 2 seals correct?

[steeevo66]

Hi All,
Does the open side of the bearing faces outward on both sides of the shaft?
What areas oh the shaft, bearings and spacer should be greased if any and how much?
Thanks,
Steve

[xray328]

Thanks!

[OsideBill]

read this it covers the whole thing http://www.greenhulk.net/showthread.php?t=10901

[xray328]

Bump back to the top...great thread. Anyone have a good link to a "how-to" pump rebuild thread? I could break the engine down to bare bones, but have never dealt with a jet pump before.

thanks,
Mike

Looking for this myself...anyone???

[mhopton]

Bump back to the top...great thread. Anyone have a good link to a "how-to" pump rebuild thread? I could break the engine down to bare bones, but have never dealt with a jet pump before.

thanks,
Mike

[texas poser]

New seals will create a little tension. Not an issue.

the seals aren't in there yet. It turns, and there's no binding feeling, or any grinding. I guess I just expected to be able to spin it with my fingers and it keep spinning freely.

speaking of bearings, which way do they face?

[Duke]

It worked! everything dropped right in.
The shaft doesn't spin as fast or freely as i would think it should. If I hold the shaft and spin the pump housing, it doesn't spin for a long time, almost like there's a little tension on it. Is this normal?

New seals will create a little tension. Not an issue.

[texas poser]

It worked! everything dropped right in.
The shaft doesn't spin as fast or freely as i would think it should. If I hold the shaft and spin the pump housing, it doesn't spin for a long time, almost like there's a little tension on it. Is this normal?

[OsideBill]

I follow the manual and have never had an issue. I put my grease mixture in after I have installed everything, I do not use the epnoc I use a blend of Amsoil marine grease and Amsoil marine gear lube.

[texas poser]

I'm going to give this a shot. How are you guys handling putting grease in between the bearings in the spacer? just putting it in there and throwing it all in the freezer? I guess I could use some sort of hose clamp to keep the spacer in place so I don't make a mess inside the freezer.

Now I just have to get the seals back off w/o destroying them?
Speaking of seals what is the correct way to put the seals in? The service manual looks like the "open" end faces to impellor, but reading on another forum, one of the more knowledgeable guys said the "open" side faces towards the rear

[volltrex]

First time reading this.........great idea Duke...will definately use it when the time comes!

As a point of interest, we now heat shrink all our CNC tooling into holders/chucks......it's as if they are one piece of metal when cooled!

[db2540]

thanks Duke. I will be trying this next week. Now I just have to decide if I should use grease or 50/50 mix.mmm?

[rangermtb5]

Pump bearing install tips.

What's the word on have often pump bearings are replaced? Is it something done ever so often or just when they go bad?