Re: Wheel Bearing Failure

[Neil Trama <tramane@actonline.com.au>]

JJK1204@aol.com wrote:
> 
> Around a year and a half ago shortly after I purchased my 87 5KTQ I replaced
> both front wheel bearings. Yesterday, when removing my rotors in order to
> change them, I found that BOTH of them were shot. Both have excessive play. I
> have not finished pulling the struts yet so I have not taken a close look at
> them. I purchased the bearing from Blau and had my local NAPA store
> machinist/owner press them into the struts. What could possibly have gone
> wrong? My wife did most of the driving and she is very cautious and does not
> throw the beast around. Any insight would be appreciated.
> 
> John Katos
> 87 5ktq
> many Alfas
John,
     Statistically, the most likely cause is that when the bearings were
fitted, they were pressed in while pushing on the inner race. This
causes the balls to indent the bearing surfaces and leads to early
failure. 2nd most likely cause is not replacing the CVJ nut/bolt with
new, that can cause the nut/bolt to come loose and results in excess
freeplay. 3rd most likely cause is not correctlt torquing the nut/bolt
also causing it to come loose.
						Neil