UMI bearing replacement (steering)

[SharkB8]

Rebuilding a 1990 SuperJet that has a seized UMI steering bearing.

That thing is in there rock solid. Would it be worth cutting it out with a dremel or should I just order a new bearing, cover and O-ring from UMI.

Maybe there is some heating/cooling trick to help get the old bearing out?

Would penetrating oil be a waste of time?

 

[restosud]

oil and a little heat will have it out in no time.or a bearing puller.

 

[Dragonfly]

order new don't mess with old bearings it's a pita

 

[augustaf]

good luck trying to buy the housing. I suggest heating it in boiling oil to about 450 degrees or in an oven. The bearing should fall out when tapped.

 

[SharkB8]

good luck trying to buy the housing. I suggest heating it in boiling oil to about 450 degrees or in an oven. The bearing should fall out when tapped.

Try it I will.

 

[OCD Solutions]

I just learned a new trick for doing just this. I had purchased a used UMI system where just the external bearing race was still stuck in the cup. I was setting it up in our milling machine at work when a Millwright came over and asked if I wanted an easier way. He snatched it out of the milling machine and took a wire feed welder and gave it a quick shot dead center of the race in 4 opposing spots, 12:00, 3:00, 6:00 and 9:00, and the race just lifted out when lightly pried on.

Warning: He didn't use a vise, which I wish he had because it left little burn marks in the surface of the cup where it wasn't grounded properly. He said not to worry that he'd buff it out but I informed him that it was anodized and that he'd done enough already. Thankfully it's for my backup ski and you won't really see it anyway.

UMI Steering $25

 

[The Penguin]

Try it I will.

No. Try not. Do... or do not. There is no try.

 

[Cannibal]

No. Try not. Do... or do not. There is no try.

LOL, my wife says that to me all the time.

 

[DirtyJ]

Umi

Wetracer (Mike) Sold me a UMI rebuild kit for $19.95. It might just be easier then messing with it. Just my 2 cents...

 

[The Penguin]

I don't think the rebuild kit includes the cup.

 

[DirtyJ]

Your right! :notworthy:

Sorry my brain must be frozen still...

I don't think the rebuild kit includes the cup.

 

[JetManiac]

use this kit when you rebuild it:

http://www.jetskisolutions.com/p71_umi_tuff_thrust_steering_thrust_washer_kit.html

 

[snowxr]

I just put my cup/bearing in some vegetable oil on the stove, and pop the bearing out when it gets warm. Smells like french fries, yum!

 

[SharkB8]

I bought the rebuild kit from UMI. I forget now how much it was, but it wasn't bad. The cup was extra but overall still short dough.

 

[OCD Solutions]

use this kit when you rebuild it:

http://www.jetskisolutions.com/p71_umi_tuff_thrust_steering_thrust_washer_kit.html

Absolutely, I bought an extra kit when I did my 07 build for just that reason. I do have a brand new radial bearing if anybody needs one, I am going tuff thrust right from the get go on both my machines.

 

[Mark44]

r

use this kit when you rebuild it:

http://www.jetskisolutions.com/p71_umi_tuff_thrust_steering_thrust_washer_kit.html

That thrush washer works great, the other bearing can come from McMaster is stainless. Mine has lasted over 6 years and still going strong.

Mark44