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Peter Dowson
United Kingdom
63 Posts |
 Posted - 03/06/2013 : 09:40:37
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Overhauling the rear brakes on PA0448 caused a few problems which I am slowly (very slowly) sorting out. One thing that I have discovered is that on the right hand (offside) side of the car the rear hub bearing is right hand thread as expected but so is the wheel spinner. This is the same on the front.
So long as I have my L.H. and R.H. threads understood, then the hubs are obviously on the wrong side of the car (the engravings on the spinners indicates that they are on the wrong side). The parts manual shows the half shafts to be identical, so I can just swap over the half shaft / hub assemblies.
Is there any (good) reason as to why a previous owner would want to do this? It seems a little unsafe to me considering that these nuts are supposed to self tighten.
Peter |
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Peter Green
United Kingdom
1682 Posts |
Posted - 03/06/2013 : 10:33:02
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Peter,
You are correct the hubs are on the wrong sides, the offside hubs should have left hand threads and the nearside hubs should have right hand threads. I can think of no reason why the previous owner had them on the wrong sides.
Peter. |
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Foz
United Kingdom
769 Posts |
Posted - 03/06/2013 : 11:05:18
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Hi Peter,
I can think of several reasons why they are on the wrong side....but that would get the editor's blue pencil out! In an emergency you can run wrong sided but need to wire the spinner to the wheel to stop "auto-undoing".
Foz |
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Gerhard Maier
Germany
873 Posts |
Posted - 03/06/2013 : 11:58:35
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Peter,
the halfshafts surely will fit, when you change them over to the other sides, but there is a drawback in so far, that during the years of running the car, the "microstructure" in the half shafts might have become accustomed to the direction of drive, especially near the ends, and in my experience they usually don't like the new load in the other direction and could snap.
OK, it's some effort to press the halfshafts out of the hubs and change them over, but I would recommend to do so and avoid the risk.
Gerhard
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Robin Macmillan
United Kingdom
415 Posts |
Posted - 03/06/2013 : 14:17:17
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Many many years ago shortly after my brother and I had acquired a PA and done a 1960's schoolboy rebuild I went to Oulton Park in a friends TA as a passenger. Near Frodsham the off side rear wheel overtook us as and the car fell by some inches towards the road where the wheel had departed. We recovered the wheel and spinner and my friend said that he was always having to tighten the spinners but had neglected to do this for a few days !!!
Yes they were all on the wrong side and are indeed self loosening
PB 0527 |
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Ray Masters
United Kingdom
568 Posts |
Posted - 03/06/2013 : 20:33:00
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| When racing at Oulton Park in the 60's I was behind Alex McCall in the ex-Eccles' Rapier , now owned by Tim Metcalf , when one of the rear wheels of the Rapier came off & headed for the grass verge. It was found that the hubs were on the wrong sides & according to Alex '' must have been like that for ages ''. The spinner was never found , if I remember rightly (hid itself away in shame, no doubt). |
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Peter Dowson
United Kingdom
63 Posts |
Posted - 05/06/2013 : 09:22:29
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Thanks all.
As the car won't be used for trialling / racing, I shall swap the half shafts over, but make sure that I have my recovery phone number handy in case I snap a shaft :-)
Peter |
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spitfire
United Kingdom
371 Posts |
Posted - 10/06/2013 : 16:03:25
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Hi Peter, I had a catalogue of "things to rectify" when I bought my J2. The car was bought from a long time pre war specialist with nine months MOT. The sided brake cams were all from the same side. One side being backed off to be useless. Rear brake lining torn off the shoe and lying in drum.
I'm surprised your hubs,(with tell tale spinners!) were "passed on" to you without an advisory.
Another case of a collection of parts being assembled rather than what the factory built.
As Foz states, you could wire the spinner as a get you home... He might also give you some tips for surviving intact when the car rolls...sans wheel(s).
Interesting that these comments are posted.
The reverse spinners(two)is a crazy instance.
Your phrase " A little unsafe" leans towards understatement. I think an engineers report might cite "lethal."
Just glad you are vigilant- and safe! |
Edited by - spitfire on 10/06/2013 16:05:10 |
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Peter Dowson
United Kingdom
63 Posts |
Posted - 11/06/2013 : 09:18:21
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Hi Spitfire,
Your comments about MoTs and long time pre-war specialists rings true. My PA has an MoT and the back brakes were so coated in oil as to be "interesting". The exhaust was also melting the spare. The rear brakes were pointed out to me and a new exhaust was purchased with the car, but I must admit, that the MoT in my opinion is useless.
Anyway, things are being sorted and I am enjoying doing the work, so I am not complaining too much  |
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Colin Butchers
United Kingdom
1487 Posts |
Posted - 12/06/2013 : 10:10:46
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If you ask the DVLA or any MOT Tester, they will tell you very quickly that the MOT Certificate is only accurate at the time the test is carried out. Ten minutes later, it has virtually no legal validity whatsoever.
Despite this, many old car owners seem to think that it is a guarantee that their car is roadworthy for the next 12 months. That really is naive, isn't it.
Colin B. |
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