Pump bearing install tips.

[WFO]

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[Duke]

3 questions...

First, how deep do the seals go into the pump? my seals are even with the top of teh pump (not recessed) does this matter?

Second, does the spacer go into the pump? How come the '07 spacer doesn't have a rubber gasket like my '01 did?

Third, how much space should their ideally be between the prop and stator housing? I am at about half an inch.

I push the seals in till they bottom out.

The spacer is the same thickness etc. and goes between prop and pump. Flat side goes torwards prop.

1/2" sounds kinda large. Can you take a pic??

[NeVerMind]

I'll take a pic tonight..

[roost5o]

I would be willing to try this method if I could get the shaft out of my old pump...any ideas?

[addicted]

Heat the pump hub woth a torch. the aluminum will expand and you should be able to tap or just slide the shaft and bearings out. Wear heavy leather gloves and do it outside because the grease will smoke.

[roost5o]

Heat the pump hub woth a torch. the aluminum will expand and you should be able to tap or just slide the shaft and bearings out. Wear heavy leather gloves and do it outside because the grease will smoke.

I will try that again. I guess that I did not heat it enough. By any chance do you have the spacer that goes between the impeller and the seals? Mine is missing.

[addicted]

Mapp gas torch is a mechanics best friend Sorry, no spacers here.

[roost5o]

Mike, I was able to remove the shaft from the pump by REALLY heating it. Yeah the grease does stink BTW! I am currently CHILLIN a driveshaft in the freezer as I type. I will keep posted

[Brewster]

Just reading this for the first time, awesome stuff. That is really some smart thinking.

[roost5o]

Well my silly arse is fixin to put it to the test shortly...gotta get a beer first though

[roost5o]

Well my silly arse is fixin to put it to the test shortly...gotta get a beer first though

Weeeellllll I got that beer and a few others. Folks this WORKS!!!!! I just installed the bearings on the shaft and then into the housing...AWESOME!!!
Dayumm this forum ROCKS!!!!!

[fx160]

I will try that again. I guess that I did not heat it enough. By any chance do you have the spacer that goes between the impeller and the seals? Mine is missing.

mine was also missing although i did not notice any problems
or it fell out after i took the last impellor off (although i don't think it did )
new impellor seemed to be in the same place as the last one ,
and this one with the spacer still seams to be in the same place
sort of glad i decided to replace the bearings and seals, i had alredy put on a new impellor and refited the pump but i was not 100% that the bearings were still good so ordered new ones and changed them to be sure ,the old ones seem to be ok but beter to be safe than sorry

kev

[chatty]

On my pump (144mm raider) I'm supposed to put the driveshaft and first bearing into the pump housing and then fill the space to the second bearing with marine grease before putting the second bearing on. The seals are supposed to go in first, but could go on after everything cools down.
With this method both bearings would already be on the driveshaft so is there an easy way of adding the grease? I was thinking something like a turkey baster filled with warm grease and 1/4 inch before the last bearing slides in pump it all in. But would a 350 degree pump housing and a frozen driveshaft affect the grease?

[burton9010]

I am thinking about doing the same thing to my pump. I have not taken mine apart yet so I am not sure how it looks but is there a way to drill and tap a grease fitting that you could just pump full when you get it back together?

[ZMANN]

I've seen the rear cone modded with a nipple , but I usually do it the old fashioned way ' I also load the cavity between the bearings with grease before I drop it into the hot housing