Lotus Elan

mechanical tacho drive

PostPost by: SJ Lambert » Sun Dec 22, 2013 6:52 am

image.jpg and


Here's what the original boss looks like.
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PostPost by: SJ Lambert » Wed Dec 25, 2013 10:19 am

image.jpg and
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PostPost by: john.p.clegg » Thu Jan 09, 2014 9:29 pm

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PostPost by: SJ Lambert » Tue Apr 07, 2015 6:14 am

I'm thinking Loctite 518 to seal the boss onto the cover and the gearbox onto the boss?
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PostPost by: SJ Lambert » Tue Apr 07, 2015 9:01 am

P1100989.jpg and


Put a sleeve over the driving shaft - just in case........
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PostPost by: SJ Lambert » Tue Apr 07, 2015 9:03 am

P1100986.jpg and
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PostPost by: elj221c » Thu Apr 09, 2015 8:25 pm

SJ Lambert wrote:
P1100989.jpg


Put a sleeve over the driving shaft - just in case........


In case of what?

Could restrict 'slip n slide'.

Never heard of a drive failing there....

What's with the big lump of alli?

Drives that I have seen all bolt straight to the cover.
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PostPost by: SJ Lambert » Fri Apr 10, 2015 12:48 pm

P1110015.JPG and


The magnesium boss gets the driven shaft of the gearbox back far enough away from the jackshaft so as to mesh properly with the driving shaft and the gearbox itself also clears the water outlet on the front cover and allows the cable to be routed forward to the the dial - just slavishly copying the original set up!
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