Lotus Elan

Help me understand the Anti-Sizzle gear lever...

PostPost by: pharriso » Thu Mar 24, 2016 9:16 pm

That diagram is interesting, it. Shows 2x lock nuts 2x lock washers & a sleeve nut.

I have only seen reference to 2x plain washers & the sleeve but before.
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PostPost by: Matt Elan » Thu Mar 24, 2016 9:26 pm

The bush is a one piece metalastic unit, which comprises an outer steel sleeve, a rubber bush and an inner steel sleeve. The rubber isolates the outer sleeve from the inner sleeve. So you don't bridge between the inner sleeve and the outer sleeve. If you do with washers, nuts or anything else the gear-lever will have a direct connection to the gearbox and will vibrate (or sizzle). So the inner sleeve is clamped to the gearchange mechanism with the fixing nut and washers, and the washers outside diameter must be small enough to avoid contact with the outer sleeve and gear lever.
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PostPost by: nmauduit » Mon May 22, 2017 5:52 pm

On the "rotating lever" problem, a few years ago I had that occurring after less that 10 hours use of a brand new part purchased from a purportedly reputable dealer (PM - though the man himself had already retired), where the rubber was not properly bonded to the outside sleeve.

They later acknowledged that they had suffered a quality issue from a batch fabricated in India IIRC, talked about sending a replacement part of an other batch that did not suffer the fabrication defect, but eventually in spite of several reminders I never got anything back, not even reply to mail.

It was not the first "quality control" issue I had with them (in spite of a hefty price tag for he reputation), not necessarily surprising in about 30 years of business, but always resolved in a considerate way so far... then at least I have one less line to plow through on my "trustworthy supplier list" for my next project...
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PostPost by: zimzum » Sun Jun 11, 2017 9:10 pm

Has anyone tried a sotution to get rid of this rubber part?
I really don't like the feeling of this slack lever. With the Caterham and the G15, I am used to a very firm and direct shifting, I'm a little bit disapointed with the feel of the shifting on the Elan
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PostPost by: rgh0 » Mon Jun 12, 2017 1:10 am

If the washers are the correct size with just a small clearance on their outer rim to the gear lever when you move the gear lever they prevent excessive movement of the rubber bush and you get the firm gear change you are looking for without the rubber feel. As they inner and outer parts only touch when changing gear you dont get the gear lever sizzle when the lever is released.

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PostPost by: elanman999 » Thu Jun 15, 2017 9:30 pm

Zimzum,
You can get rid of the rubber bush in one of three ways.
1, I think TTR do a solid lever.
2, Some Cortina levers can be modified to fit.
3, A new lever can be machined from solid, apart from the side pins. If you know a good man with a lathe.

But, for road use the rubber bush lever is best IMHO. The solid lever is good for track work but it will sizzle when the oil is warm.
YMMV.
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