Lotus Elan

Hub and axle questions?

PostPost by: TonyL » Sat Nov 09, 2013 11:58 pm

I am replacing a bent hub on a +2 I recently bought. The previous owner provided a replacement hub. He mentioned the wheel had come loose while driving after an amateur mechanic bent the old hub replacing the bearing. I noticed the center of the new hub appears to be misaligned when it was machined. Will this cause any problems with wheel balance? I also noticed some damage to the axle. I think it may be too far gone. The dark area is gouged and there is a matching gouge on the other side. The lighter metal looks like it has been filed down. I assume this will weaken a critical part. Any advise would be appreciated. Thank you in advance! Tony
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PostPost by: john.p.clegg » Sun Nov 10, 2013 7:33 am

I'm no expert but I wouldn't touch that with a barge pole....the axle that is..is that a key slot going the wrong way??

John :wink:

P.S Don't worry about the hub,they're all like that.
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PostPost by: rgh0 » Sun Nov 10, 2013 8:25 am

yes I agree you need a new axle. It is desirable to lap the hub and axle together using fine valve grinding paste to ensure a good fit on the taper.

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PostPost by: john.p.clegg » Sun Nov 10, 2013 8:44 am

I've tried uploading the photo (axle) to have a closer look but it's not much better...has the taper been machined off?

John :wink:
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PostPost by: gus » Sun Nov 10, 2013 12:51 pm

What on earth is up with that axle. It is not right. Get a new axles, and probably new bearings
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PostPost by: vxah » Sun Nov 10, 2013 3:48 pm

OMG what has been done to that? Looks like someone may have converted it to take hubs from another vehicle?
You're going to need that replacing! Also that outer bearing looks to be open as in there is no seal to keep the dirt out... If it's not shot already it soon will be!
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PostPost by: TonyL » Sun Nov 10, 2013 3:51 pm

The key slot is fine, just on the other side of the photo. I will replace the axle. Glad to hear other hubs are off center too. Thank you!
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PostPost by: rgh0 » Sun Nov 10, 2013 10:28 pm

It looks like a new straight rather than tapered axle has been made up and I presume the hub was bored to fit a straight shaft. Not surprising that it came loose and damaged the shaft.

You need to check whether the other side has been similarly modified and replace it also if it has.

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PostPost by: TonyL » Sun Nov 10, 2013 11:45 pm

The hub and shaft are tapered, it has the key slot and appears to be original, just a poor angle on the picture. I am looking for a new shaft. Thanks for all of the advise, I really appreciate it.

Tony
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PostPost by: rgh0 » Sun Nov 10, 2013 11:55 pm

Amazing how the angle of the photo compensates exactly for the angle of the taper to make the shaft look parallel.

You can never trust photos :D

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PostPost by: john.p.clegg » Mon Nov 11, 2013 6:35 am

and even with the photo enlarged it certainly looks like a big key-way going the wrong way...

John :wink:
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