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Subject:Re: {front} wheel bearings on an '88 Westy
From:Roy Nicholl
Date:Sat, 28 May 2016 10:01:31 -0300

Dennis:

Over-tightening the bearings is my concern.  Is it possible for things to feel too tight (maybe like there is drag on the wheels)? 
I guess I get to lift the van this weekend, pull the wheels and check the hubs.

The old mechanic who owns the shop would have known about the wear of the spindles and not to tighten beyond the proper pre-load, but he doesn’t do much of the work anymore.

> On 27-May-2016, at 23:17, Dennis Haynes <d23haynes57@HOTMAIL.COM> wrote:
> 
> Usually if they really loosened it was due to the races not being fully pressed in. Some of the tools shops use to press them in do not quite fit the Vanagon bearings or hub. On the outer bearing the tool may bottom out and for inner most of the bearing tool driver sets do not have the correct size for that large bearing race. If the peening on the nut was not sufficient that would be obvious. 
> 
> More concerning is that most of these spindles now have enough wear on them that the outer bearing is not a tight fit. As such even after proper adjustment (preload-gap) the unloaded wheel will be able to move up-down, back-forth slightly making the bearing look loose. In this case tightening until the play is gone will mean an overtightened bearing with a resulting short life or unexpected failure. Bearing need some room for thermal conditions and space for the lubricant to be between the rollers and races. 
> 
> Dennis
> 
>