[T3] 73 T3 IRS rear bearings?
William J
catnine09 at dslextreme.com
Mon Feb 8 14:22:27 PST 2016
Thank you Bob And Jim :
I understand what you are saying. Roller bearings and ball bearings by
nature have to be made with some play or there would be no room for grease
and if they had no play they would expand from heat and self destruct . The
front wheel tapered bearings have lot's of play when out yet because of
their design when adjusted even with grease that play is taken up and if you
bring them to tight they burn up.
I would take them out yet I don't have the 36 mm socket required or the HD
C clip pliers. The tire with the wheel is quite heavy and the hub is out
pretty far from the roller bearing creating leverage. I imagine the ball may
not take most of the weight it is mainly side or in. out play yet it does
take some of the weight since it's on the same shaft . Add both and I
imagine there would be some play even with new bearings.
I keep reading most say this nut requires a 3/4" drive no pivot breaker
bar. I only have a 1/2" drive pivot type.
William
----- Original Message -----
From: "Jim Adney" <jadney at VWType3.org>
To: <type3 at vwtype3.org>
Sent: Monday, February 08, 2016 1:14 PM
Subject: Re: [T3] 73 T3 IRS rear bearings?
> On 7 Feb 2016 at 22:14, William J wrote:
>
>> In my last email I wrote I checked both sides and the only movement I
>> found
>> was witha bar under each tire lifting up there was play . I can't really
>> measure it. Both sides if I pull on the tire and push it back the max I
>> feel
>> is .010" to .015" . I also rotated each wheel 90 degrees and 180 degrees
>> and
>> had the same result. I did this just to check the bearings in different
>> positions.
>
> I agree with Bob. What you're seeing is normal play in the bearings.
> They have internal clearance, so what you feel is that clearance
> multiplied by the length of the lever arm out to the OD of the tire.
>
> The reason the play is more perceptable up and down is that the play
> is actually in a circle. The weight of the wheel/tire holds the axle
> to the bottom of that arc so you have to lift that mass up to the
> center of the circle in order to move it left and right. I think this
> would be more obvious if you removed the wheel.
>
> What you're concerned about is normal.
>
> --
> *******************************
> Jim Adney, jadney at vwtype3.org
> Madison, Wisconsin, USA
> *******************************
>
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