jphtr4a Posted July 29, 2010 Report Share Posted July 29, 2010 Suggestions gratefully received: the driver's side rear wheel of my 4A has a distinct wobble (I have seen it going round on a rolling road during tuning and boy does it look buckled). The alloy wheel however is new and has been checked and is not distorted or buckled or anything else likely to cause the distortion. Likewise the tyre. So what should I be looking at now? Hub? half-shaft? wheel bearing? UJs? problem with the trailing arm? Is there a likely cause which would make the wheel appear buckled? JPH Quote Link to post Share on other sites
88V8 Posted July 29, 2010 Report Share Posted July 29, 2010 If the wheel centre is a little too small it may not be sitting down fully on the hub/drum. The hub & driveshaft can't be out of true, otherwise the brake drum would be rubbing on the shoes or backplate. Ivor Quote Link to post Share on other sites
Tr4Tony Posted July 29, 2010 Report Share Posted July 29, 2010 The brake drum may not be sitting square ? causing the whole wheel assembly to be bolted on 'off true' ?? Quote Link to post Share on other sites
RogerH Posted July 29, 2010 Report Share Posted July 29, 2010 The stub axle (you know, the one that breaks) may be bent due to a serious knock. Everything on the rear end, if out of alignment, will make the wheel point in an incorrect direction. But a bent stub axle will allow it to rotate about the wrong centre - hence wobble. Roger Quote Link to post Share on other sites
stuart Posted July 29, 2010 Report Share Posted July 29, 2010 The brake drum may not be sitting square ? causing the whole wheel assembly to be bolted on 'off true' ?? Or some studs pulled out or loose in the T/A Stuart. Quote Link to post Share on other sites
Alec Pringle Posted July 29, 2010 Report Share Posted July 29, 2010 I haven't come across a TR hub incorrectly machined, but I have come across alloy wheels that appeared pukka but were in fact just enough out in the centre to cause a wobble, as Ivor suggests. If you haven't already done so, and the n/s/r wheels is fine, then swap the rear wheels over simply to eliminate any remaining possibility of the wheel being the cause . . . . Cheers, Alec Quote Link to post Share on other sites
RogerH Posted July 29, 2010 Report Share Posted July 29, 2010 ...whilst the wheel is off rotate the driveshaft and see if it runs true. Roger Quote Link to post Share on other sites
jphtr4a Posted July 30, 2010 Author Report Share Posted July 30, 2010 Thanks guys - I will have a look at everything as suggested including swapping wheels. Meanwhile on to trying to get that starter motor up to speed and cure its asthma... JPH Quote Link to post Share on other sites
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