Cutlass bearing removal

[matt1]

Hi

Any bright ideas or tips for removing an existing cutlass bearing (a bronze / brass cylinder rubber insert type) that is in a p bracket.

I'm trying to do it without removing the rudder or engine, because the clearances arent in my favour here! I can get the prop off with relative ease, but is there any way to remove the cutlass bearing whilst the shaft is in situ?

Thanks

Matt

 

[Hadenough]

Here you go
http://www.pbo.co.uk/practical-projects/diy-cutless-bearing-extractor-26496

 

[Poey50]

Hi

Any bright ideas or tips for removing an existing cutlass bearing (a bronze / brass cylinder rubber insert type) that is in a p bracket.

I copied this .. http://www.pbo.co.uk/practical-projects/diy-cutless-bearing-extractor-26496

It worked very well.

Edit ... pipped at the post.

 

[matt1]

Great, thanks

Will be a worthwhile investment making one of those. It's a wonder chandlers don't sell them

 

[DinghyMan]

Great, thanks

Will be a worthwhile investment making one of those. It's a wonder chandlers don't sell them

Too many size combinations for them to be an off the shelf item.

If you get stuck I make them.

 

[matthewriches]

If you get stuck I make them.

Interesting. Rough price for a 2 inch ish shaft? Fairline mobo that is due 2x new cutlass and gland service and packing. Can't wait, really looking forward to the job

 

[PetiteFleur]

Exactly the same as I made a week ago for my cutlass bearing - 1" shaft on a Moody33. (mk2 version - mk1 broke...)

 

[matt1]

Too many size combinations for them to be an off the shelf item.

If you get stuck I make them.

Thanks - pm sent

 

[Houleaux]

Too many size combinations for them to be an off the shelf item.

If you get stuck I make them.

I can vouch for DinghyMan's product. He made one for me and it worked a treat.

 

[Poey50]

I can vouch for DinghyMan's product. He made one for me and it worked a treat.

+1

 

[radu the handsome]

Awesome - I've been dreading this looming job, and had planned to devise some kind of jacking bolt thru-the-middle device, for which I would obviously have to draw the shaft.
but now you've put this concept in my head I know I have 2 ways to crack the problem, and the dread has lifted!
Of course I may still draw the shaft so I can have a good look at all the other bits, including the seal, but to have this as a backup plan is such a relief!
thanks mate!
Radu

 

[snowbird30ds]

I made one for my 1.5" shafts and needed lots of heat and abuse before they'd move and fought all the way out (yes I had removed the grub screws), the 10mm steel spreader plate that forced the split tube through kept bending.
A fun job I don't want to repeat any time soon.

 

[radu the handsome]

mmm - I guess it all depends how "stuck" the bearing shell is.
I guess a "max" version could be made ...
4 of the slotted "engine side" spreader plates with 3 holes in each allowing for the 4 plates to be bolted together in 2 corners and jacked from the other 2 corners
That should more than double the force required to bend it, and making 4 plates is probably not much more cost than making 2.
good warning though - thanks!

 

[jiris]

I made one for my 1.5" shafts and needed lots of heat and abuse before they'd move and fought all the way out (yes I had removed the grub screws), the 10mm steel spreader plate that forced the split tube through kept bending.
A fun job I don't want to repeat any time soon.

It is to be quite common problem... Some people are reducing the tension holding the bearing in the P-bracket by cutting it first with a hacksaw. It obviously involves removing the shaft first - but as far as I know, it works really well. I was thinking about using a diamond cutting string that could be run through one of the groves in the bearing while the shaft is in. May be worth trying, can't offer a practical experience though ;-).