volvo aq145a shaft pilot bearing removal

[shadetreemech4767]

I am trying to remove the input shaft bearing at the back of my AQ145A motor, after removing the flywheel cover,shaft ,and damper. Bearing is stuck. Tried to use slide hammer, but ,no luck. Can someone help??

 

[billbayliner]

Re: volvo aq145a shaft pilot bearing removal

Is the PDS stuck in the crankshaft bearing, or are you talking about removing the bearing only?

Just so you know, there is no bearing action here in the normal sense. The crankshaft bearing serves no purpose for Marine use other than as a centering device for the PDS pilot nose.
(being there is a result on an automotive std transmission carry-over.... it could easily be a bronze bushing)

 

[shadetreemech4767]

Re: volvo aq145a shaft pilot bearing removal

Bearing only. I have a new one on hand, so I really want to replace it since i am replacing the damper and housing shaft bearing and seals.

 

[billbayliner]

Re: volvo aq145a shaft pilot bearing removal

I understand!
What I was suggesting earlier was...... the bearing, the PDS pilot nose, the flywheel and the Borg Warner drive coupler all spin 1:1 with each other (no rotation against one another). This bearing simply maintains and holds the pilot nose center.
So if it's just a bit rusty, there is no real need to replace it unless it bugs you.
Grease it up for rust protection, and finish your work.

But.... if it is rusted and worm so badly that it no longer centers the PDS pilot nose, then definitely replace it.

 

[Bondo]

Re: volvo aq145a shaft pilot bearing removal

Bearing is stuck. Tried to use slide hammer, but ,no luck. Can someone help??

Ayuh,..... Pack the pocket full of Grease,...
Find a wooden dowel or punch that Just fits the Id,....
Insert the punch,. 'n WACK it with a BFHammer...

It'll drive the old bearing out...

 

[billbayliner]

Re: volvo aq145a shaft pilot bearing removal

The grease and punch trick make work if the seal isn't blown out..... might be worth a try.

The A engine should be very similar if not identical to this B schematic.
Remove retaining ring, install puller tool and remove bearing.

 

[shadetreemech4767]

Re: volvo aq145a shaft pilot bearing removal

Thanks for the replies. The bearing does have play in it, and I don't think that it will keep the shaft centered. This is why I want to replace it. I simply needed to know the tricks of getting it out. I am sure that it.s the original bearing. The boat is a mid eighties glas ply, so, it's time to change it. Thanks folks!

 

[Don S]

Re: volvo aq145a shaft pilot bearing removal

Did you remove the retainer ring?

Did you see if you could rent/borrow a pilot bearing puller from the local auto parts store?

 

[shadetreemech4767]

Re: volvo aq145a shaft pilot bearing removal

Yes, i removed the snap ring. i'll try the local parts store for a puller, if the grease trick doesn't work. Thanks Don!

 

[shadetreemech4767]

Re: volvo aq145a shaft pilot bearing removal

I finally got the bearing out! It was in much worse shape than I thought. I had to improvise and build my own puller. I took a grade 8 bolt 3 inches long and inserted it head first into the center and hung the edge of the bolthead on the backside of the bearing. I then wedged a 5/16 nut alongside the bolt to hold it in, tapping it in snugly with a small hammer. I drilled a hole in a piece of 1/4 inch plate and slipped it over the bolt. I then tightened a grade 8 nut and tried to force the bearing out. Instead the inner bearing race and cage departed, along with a sizeable chunk of the outer race. I was able to eventually pry out the rest with a piece of tool steel and a hammer. Ugggg!!!!
The bearing was very rusted. If someone had taken proper care of this drive, it would not be this bad. I have the entire drive back together, and I'm ready to put my motor back in to my 1980 Glasply. The motor mounts were trashed too, and instead of buying the ultra expensive volvo mounts, I found a cheaper alternative that is very good quality for around 32.00 each! They are available on Ebay. Item # 150732294528 Thanks to all who helped me with this nightmare.