OzVMX Forum

Clubroom => Tech Talk => Topic started by: D project on January 19, 2013, 05:59:03 pm

Title: Loose bearing.
Post by: D project on January 19, 2013, 05:59:03 pm

Just discovered what looks like a loose main bearing in my crankcase.
What is the solution to properly locate it in the housing?

Title: Re: Loose bearing.
Post by: 09.0 on January 20, 2013, 09:10:27 am

I have had a set of cases repaired in regards to gearbox bearings. The guy that did the repairs got a new bearing and closed the ends up, then put it in a zinc(?) bath and built up the O.D. he would pull it out periodically and measure till he got the required size. You could machine out and put a sleeve in as well. Specialist stuff thats for sure.

Title: Re: Loose bearing.
Post by: paco on January 20, 2013, 10:12:32 am

An easier way {although a bit rough} is to centre punch the bearing housing in a couple of places.p

Title: Re: Loose bearing.
Post by: oldfart on January 20, 2013, 11:23:29 am

Loctite -  have a product called quick metal ( 660 retaining compound )  used by the mines when shafts are worn - hardens to doudle the strength of a press fit.
Able to fill an  area of .5mm full strength in 2 hours

Title: Re: Loose bearing.
Post by: tony27 on January 20, 2013, 11:25:42 am

Thats the silver tube that comes out as a paste rather than liquid? Have 1 of my rear hubs for the CZ done that way

Title: Re: Loose bearing.
Post by: paco on January 20, 2013, 12:28:09 pm

Sounds like the right stuff.Good ol' locktight to the rescue.p

Title: Re: Loose bearing.
Post by: TT5 Matt on January 21, 2013, 01:58:00 am

ive used loctite hi strength super retaining compound with good results,use their primer as well for a oil free surface ;)

Title: Re: Loose bearing.
Post by: D project on January 21, 2013, 06:08:00 pm

Thanks, I tried the centre punch trick when I assembled it.Guess it didn't work ::)
When I pull it apart I will give the locktite a go ;)