Adaptor thread size

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simonjrwinter
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Re: Adaptor thread size

Post by simonjrwinter » Mon Sep 14, 2020 3:30 pm

The spinner was really tight and held in place with lockwire. As soon as the bolts fell out and I braked,, the disc stopped but the wheel continued to turn as it had the weight of the car to deal with. The turning motion unscrewed the spinner and spat it off.
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Migge
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Re: Adaptor thread size

Post by Migge » Mon Sep 14, 2020 3:53 pm

Sure, the movement is between the adapter and the wheel. No damage at the wheel where the adapter sits?
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clive
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Re: Adaptor thread size

Post by clive » Mon Sep 14, 2020 4:28 pm

Are the splines in the adaptor and not the wheel?
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simonjrwinter
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Re: Adaptor thread size

Post by simonjrwinter » Mon Sep 14, 2020 4:32 pm

Yes, the adaptor is bolted to the wheel (or not)
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clive
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Re: Adaptor thread size

Post by clive » Mon Sep 14, 2020 5:49 pm

Mmm, not the best solution.
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peterc
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Re: Adaptor thread size

Post by peterc » Mon Sep 14, 2020 7:04 pm

Assuming it’s the same FIA type as mine then the centre of the wheel is steel and obviously bolted to the alloy casting of the wheel. I have never checked mine in over 20 years. I had assumed they were a force fit and bolts would have been fixed with loctite.
In view of your near calamity I will be checking mine.
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simonjrwinter
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Re: Adaptor thread size

Post by simonjrwinter » Mon Sep 14, 2020 8:17 pm

Good idea.
I’ve just removed my rear wheels, taken off the adaptors fixed with medium strength thread lock and re-fitted them with high strength thread lock........once (nearly) bitten and all that....

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Roger King
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Re: Adaptor thread size

Post by Roger King » Wed Sep 16, 2020 2:10 pm

Bolt-in spline adaptors were common in period - Minilite used them in all sorts of applications for cars normally fitted with wires, such as Healeys, TRs, Jags, MGs etc. It's the same old story - these are competition parts, and would have been checked, then stripped and reassembled if necessary after every outing. They'd be checked again at scrutineering.

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Migge
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Re: Adaptor thread size

Post by Migge » Wed Sep 16, 2020 4:24 pm

Yes Roger, but they all have the bolts through the wheel incl. nuts!
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Roger King
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Re: Adaptor thread size

Post by Roger King » Wed Sep 16, 2020 4:40 pm

They do - but they still get checked every time out!

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