Warped Drums ???

Rebel · Post by **Rebel** » Thu Aug 17, 06 12:43 am

Ever since I fitted my sluts and tyres the right hand rear wheel appears to be buckled when driving, so I'm told, jacked the car up and spun the wheel and it does appear to be slightly out of true. I've had the rim checked and it's ok and the tyre is sitting squarely on the rim. Theres no damage to the rear of the rim or the front face of the drum either and nothing stuck to either of them preventing the wheel from sitting correctly. I did think it may have been caused by a missing washer that sits in the lug nut hole of the wheel, but Willdatsun supplied me with one (and a set of centre caps - all a perfect fit - thanx Will

) and the problem still exists. when I spin the wheel it only moves freely for about 3 quarters of a turn then gets really tight, could this be a problem with the drum or just the brakes need adjusting?
the only things left I can think of checking is to swap the rear wheels and then drums to see if the problem follows, any ideas?

Anonymous · Post by **Anonymous** » Thu Aug 17, 06 1:09 am

Had the same problem,it was the flange on the end of half shaft.Took it to machine shop & they trued it up for me.I think it had been curbed,so bent the hub.

RobTwin · Post by **RobTwin** » Thu Aug 17, 06 1:44 am

Adam68 wrote:Had the same problem,it was the flange on the end of half shaft.Took it to machine shop & they trued it up for me.I think it had been curbed,so bent the hub.

we had exactly the same with one wheel on the Polara.
Replaced both 1/2 shafts tho

Rebel · Post by **Rebel** » Thu Aug 17, 06 1:52 am

Certainly something else to check, strange thing is though, this has only started since I fitted the wolfies, before that everything was ok and I haven't abused it or tried any burnouts. I have some magnums I can try on as well to check and make sure its not the wheel. Does sound like it could be the halfshaft though

Blue · Post by **Blue** » Thu Aug 17, 06 6:39 am

Make sure yer nuts ain't too long! When you push the nut and washer through the rim it needs to be about 1/8" short of flush at the mounting face. Have a look at where the wheel studs come through the drum, if there is an unthreaded section showing then the nut needs to be shorter still so as not to bottom out before the wheel is tight, this could well be your problem.

Rebel · Post by **Rebel** » Thu Aug 17, 06 11:20 am

Thanx Blue, I'll have a look at that as soon as I can

Dave-R · Post by **Dave-R** » Thu Aug 17, 06 11:52 am

I hope it is something simple.

What you guys don't know is that Rebel has VERY kindly offered to drive a young lad to his wedding next Friday. It will be a total suprise for the lad as he knows nothing about it.

This lad used to hang around on my driveway years ago when I was putting the Chally together. He loved the car and when he got a garage mechanics apprenticeship after leaving school he gave me all of the AF spanners and hex-keys he had been supplied with. Good quality tools I have used every day since.

He moved away before I got the Chally running right and I have not seen him since. But his girlfriend got in touch and asked me if I could suprise him with a run around in my car before he goes to the wedding.

I couldn't do that of course but Rebel stepped in and offered not only to take him for a drive but to take him out to the country house where the wedding is being held.

You are a top man Nigle and you will make the day very special for the lad. Fingers crossed you can sort out this problem. If you need any help you know I will come up and give it.

Cheers mate.

Anonymous · Post by **Anonymous** » Thu Aug 17, 06 3:21 pm

Well done that man.

Anonymous · Post by **Anonymous** » Thu Aug 17, 06 3:39 pm

Ditto what Adam said

Rebel · Post by **Rebel** » Thu Aug 17, 06 10:15 pm

thanx Guys

I was thinking on my way home from work tonight, is it possible that the problem could just be down to the rear wheel bearing?

I'm spending as much time trying to solve it as I can (aint it a pain in the neck when work gets in the way

) although I'll obviously check everything mentioned earlier, I just can't understand how it could be the halfshaft due to the car not having anything done except replacing the wheels. This is why I'm thinking (guessing) bearings as they obviously wear out

Dave-R · Post by **Dave-R** » Fri Aug 18, 06 9:16 am

I don't think bearings would make it wobble Nige. It has to be the wheel itself, the way the wheel is mounted, the mounting flange bent, or the halfshaft bent.

Blue · Post by **Blue** » Fri Aug 18, 06 9:31 am

I agree with Dave, you wouldn't see a visible wobble with a shot rear wheel bearing.

Anonymous · Post by **Anonymous** » Fri Aug 18, 06 9:48 am

May seem a silly suggestion Reb, but have you tried putting your old wheels back on to see if the wobble disappears??? If it does, your slit mugs are the problem.

Rebel · Post by **Rebel** » Fri Aug 18, 06 11:46 am

Thanx for all the help and suggestions guy's,

Clivey - can't try the old wheels, I sold them at the Nats

The wheel nuts are all the same length and all have about an eigth of an inch between the end of the nut and the mounting face of the rim, so, not the problem

There's no play in the bearing at all (checked anyway), so, not the problem

Removed the drum and spun the halfshaft, using a straight edge to check, the halfshaft isn't bent, so, not the problem

Mounted the wheel straight to the halfshaft without the drum and the wheel spun true, so, as it was now chucking it down with rain as well as thunder and lightning and I was soaked through anyway. I swapped the wheel, wheel nuts and drum from the right hand side to the left hand side and both wheels now appear to spin true

I have no idea what it was or what I did if it's sorted, nearly time for work again though so I'll be able to check it better tomorrow

one thing I did spot though, in the pic below. There seems to be a cover (?) missing from the bearing and it looks like the seal might need replacing as well, it's not brake fluid. The recently fitted wheel cylinder is still dry

Dave-R · Post by **Dave-R** » Fri Aug 18, 06 12:16 pm

The seal in the end of the axle housing should prevent any oil leaking out.

Glad the problem is sorted. Maybe the wheel was just not sitting right on the drum? Too tight in the hole in the middle?