Lotus Elan

Gearbox question: picture added! - PLEASE comment

PostPost by: el-saturn » Sun Dec 18, 2016 1:23 pm

thanks fellas! sandy
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PostPost by: Lyn7 » Sun Dec 18, 2016 2:28 pm

Hi Sandy, I presume you want a comment regarding the bearing surface on the first motion shaft?
As I am unable to see all sides I will comment on what I can see. I would probably polish and make sure there are no sharp edges and re use with a new bearing and plenty of quality grease. Should last for ages in a road car. If racing I would think again. :D Others will probably dis agree and it will be your decision in the end. :)
Good luck, Lyn...
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PostPost by: Craven » Sun Dec 18, 2016 2:46 pm

If this were mine I would change the needle roller bearing in the crankshaft to a plain bearing, an oilite type.
An old trick.
Ron.
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PostPost by: el-saturn » Sun Dec 18, 2016 3:31 pm

thanks fellas - the bearing is new (1000mls) and i also like the grease option - the brass bearing im afraid will wear due to the surface, whereas the needles are hardened and will "appreciate" more clearance! sandy PS: the gearbox has just been overhauled!
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PostPost by: el-saturn » Sun Dec 18, 2016 3:40 pm

thanks lyn - isn't the shaft held in the removable front cover AND enough clearance in the case (housing) to pull the complete 1st quarter (incl. 4th gear) out, fit a new bearing and back in??? sandy
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PostPost by: Lyn7 » Sun Dec 18, 2016 6:49 pm

Hi Sandy, afraid not, if only it was that easy. :D Unfortunately the third motion shaft has to come out of the back and the first motion shaft is removed through the casing and out the top! :( There is a bit more to it than that. If you go that route you need to look at a workshop manual and a good exploded diagram. Not difficult.
Cheers, Lyn...
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PostPost by: el-saturn » Sun Dec 18, 2016 7:41 pm

tx again - we DO tend to be optimistic and as there no findable and proper cross-sections and only some partial explosion drawings it's just a lot of guess-work! sandy - will be adding some grease! and'll give the surface in question a tiny bit of 300 scotchbrite!
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