Lotus Elan

Caliper not aligned to disk

PostPost by: JonB » Fri Jun 28, 2019 9:43 am

Dunno.

I do wonder if some sort of bearing seating compound would help prevent the outer bearing coming loose on the shaft. It's an interference fit, but not incredibly tight.
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PostPost by: rgh0 » Fri Jun 28, 2019 9:46 am

Baring inner races wear grooves in the shaft for 2 reasons normally.

1. They were fitted with insufficient interference and have spun on the shaft wearing the groove.
2. The bearing failed in some way causing the inner race to overheat and loosen on the shaft and then spin and wear the groove.

You're original failure may have been due to 2. and then your later failure with new components due to 1.

Bearing failures are one of my favourite topics and I look at many failed bearings in my job, so an appropriate topic for my 7000 post :lol:

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PostPost by: JonB » Fri Jun 28, 2019 9:57 am

7000 posts? Should you not have ULTRA RARE COVETED 6th GEAR status then?
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PostPost by: rgh0 » Fri Jun 28, 2019 9:59 am

Maybe when Spyder finally sell their six speed mazda conversion. :lol:

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PostPost by: HumBuck » Fri Jun 28, 2019 8:30 pm

Hello,

Apologies for late reply.

Craven, thanks for very useful pic. I decided to press my axle out again and found I had put the bearing in the other way round. And indeed the difference between the two sides of the bearing is about the same as my odd caliper offset...

Image

Image

But, seeing it out again has reminded me of my original logic when putting it together. With the bearing this way round the metal dust shield is outboard of the hub carrier, where as on yours the shield appears to be inboard. I can?t think why the shield would need to be inboard as the carrier looks to be a sealed unit once it is assembled. I must be missing something.
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PostPost by: HumBuck » Fri Jun 28, 2019 9:28 pm

My mistake. Have looked again at your pic and can now see the dust shield is on the outboard side on yours. This is going to be tricky to explain without removing the bearing and posting a pic, but on my bearing there is s shoulder on the inner race that protrudes out by a few mm and that the dust shield neatly fits on to, as though to hold it in place. It must have been a chance fit and has lead me to fit it the wrong way round.

I?ll try it the other way round and report back.

Thanks again for replies.
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PostPost by: Craven » Sat Jun 29, 2019 12:01 am

Good, the shield when correctly position will be on the machined diameter on the shaft shown in your pic 1 and lose until held in place by the circlip when fitted, don?t trap it between the bearing and the spider.
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PostPost by: 2cams70 » Sat Jun 29, 2019 12:17 am

That bearing is a Mk1/Mk2 Ford Escort part originally for a live rear axle and designed to seal rear axle oil. The proper way it fits in an Elan therefore may appear illogical because that wasn't the application it was originally intended for.
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