changing cutlass bearings

[kashurst]

I need to change my worn cutlass bearings. I am OK getting props off and shafts out but how do you get the bearings out of the P brackets and insert fresh ones???
any advice appreciated.

 

[Sandyman]

See here......... http://www.diybob.com/diyCutlessBearing.htm ..........may be of use

 

[Tugw]

You sometimes need to collapse the old bearings while they are in place and 'fold'them so they will come out.I had to split the bearings lenthways with a saw and then as metioned fold them in to themselves(if you follow what i mean) i made a puller from a lenth of stud iron and a piece of aluminium plate to pull the new ones into place.Bit difficult to explain really.getting the new ones in was easier than getting the old ones out.

 

[Tugw]

Same idea as Sandyman's link

 

[Skysail]

I made up a puller like diybob and it worked a treat. Make sure any grubscrews in the P bracket are out. The new bearing spent a few hours in the freezer (the frig would do) and was very easy to tap back in.

 

[Neil_Y]

You can bed some bearings on epoxy as a clearance fit in the P bracket/carrier, this allows you to confirm the P bracket/carrier alignment. You should be able to spin the bearing on the shaft and in the carrier with the shaft chocked. Once you have this then epoxy the bearing in place, it also makes removal easier.

Check with your bearing supplier first for clearance details on your carrier ID.

 

[volvopaul]

On some p brackets you dont have to take the shafts out, I have various tools, home made to remove the bearings with the shafts in place, some ive done recently include no more that half a dozen hits and there out, some however are a pain.

I find on some installations its easier to remove the p brackets and press out the bearings rather than sit squashed in an engine room, pulling off couplings that have been there for years, and then pulling shafts out, only to find the bearings still hard in the brackets and having to then saw them in half before removal.

Hope this helps.

 

[kashurst]

cutlass bearing replacement

thanks for all the tips - I'll give it a go with the help of a DIY puller

 

[volvopaul]

Just looked at the puller, you still have to take the shaft out though.

 

[Seadee]

Did mine this year on my MF805 - just pay the marina to do it. Worth its weight in gold. Needed hydraulic puller to get the prop off then the right tools to get the bearing out. In the end my engine was found out be slightly misaligned (probably from new ?) and the engineer at the yard spent a very caring hour tooing and froing to get it knob on. Highly recommend Shotley marina engineers if you're that way.

I started the job myself and glad I gave up early. Lots of peeps will tell you otherwise. Probably a relatively simple job with the right tools - you just don't have them lying around your normal toolbox ..... LOL !!

Chris