Lotus Elan

Cam Gears

PostPost by: l10tus » Fri Apr 24, 2020 12:38 pm

Is there any difference between the Inlet, Exhaust and Jackshaft gears, can they be installed in any of the afforementioned locations?

I have seen gears with EX. Marked on them, so I wonder if there are any real differences?

Replies / thoughts welcomed
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PostPost by: Craven » Fri Apr 24, 2020 12:52 pm

No difference, all the same Ford part.
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PostPost by: billwill » Fri Apr 24, 2020 1:27 pm

Craven wrote:No difference, all the same Ford part.


But the timing marks are in different places.

EX is for exhaust valves.
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PostPost by: l10tus » Fri Apr 24, 2020 2:56 pm

Thanks Craven.
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PostPost by: alan.barker » Fri Apr 24, 2020 3:13 pm

The Timing mark is one Tooth different on Exhaust
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PostPost by: l10tus » Fri Apr 24, 2020 3:26 pm

"One tooth different" - Er..... please explain?
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PostPost by: englishmaninwales » Fri Apr 24, 2020 4:08 pm

The position of the timing marks are different relative to the hole for the camshaft locating pin for inlet and exhaust (by one tooth as Alan says).
Either can be used on the jack shaft.
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Last edited by englishmaninwales on Fri Apr 24, 2020 10:48 pm, edited 1 time in total.
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PostPost by: l10tus » Fri Apr 24, 2020 4:42 pm

Thanks all !
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