Help with flywheel/clutch/cover identification?

PostPost by: JGeezer » Fri Feb 01, 2013 7:25 pm

I am working through the pile of parts that came with my 69 Federal Elan+2, and some (well, quite a few actually) things don't seem to fit together. This flywheel is, I think, the standard steel flywheel:

ClutchA.jpg and


But the clutch/cover setup is 8.5"

ClutchB.jpg and


and the disc/cover does not fit on the flywheel:

ClutchC.jpg and


The best I can figure is this is a standard steel flywheel (Dave Bean says 074Q8100, I think) but a heavy duty disc/cover 026Q7010/026Q7009 or 026Q7011/028Q7009. The only ID I can find is a Borg & Beck number on the cover:

ClutchD.jpg and


LC 03JC 049A that I haven't been able to find much on (one UK eBay sale called it a "racing" cover).

So if I have this right, I either can keep they flywheel and need a an 8" standard disc/cover setup 036Q6010/026Q6009

OR

I can keep the heavy duty disc/plate and get a stupidly expensive heavy duty aluminum flywheel 074Q8108.

Do I have this right? :?

Anybody have a stupidly expensive 074Q8108 flywheel they want to sell stupidly cheap? :lol:

Will any of the parts in these boxes every actually fit together? :roll:

Thanks,

Geezer
J Geezer
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1969 Elan+2 Federal
(Past MGA, MGB, TR6, AH 3000 BJ8, XR4ti, BMW E39 540i/6, Lola T644 ... )
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PostPost by: types26/36 » Fri Feb 01, 2013 8:37 pm

It is possible that you have a Cross Flow (711) flywheel instead of the Lotus f/wheel.
The pcd of the clutch cover is a smaller diameter on the 711 compared with the Lotus unit, the difference can be seen
in these pics.
I have included a pic of a standard Lotus flywheel and it can be seen it is the same diameter as your f/wheel.
Attachments
711 AND TC FLYWHEEL.jpg and
711 AND TC FLYWHEEL WEIGHT.jpg and
LOTUS FLYWHEEL 002 (Copy).JPG and
LOTUS FLYWHEEL 003 (Copy).JPG and
LOTUS FLYWHEEL 004 (Copy).JPG and
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PostPost by: JGeezer » Fri Feb 01, 2013 9:42 pm

Thank you! I can see the flywheel mounting pins are wrong, and how the B&B should mount on a correct one. The Dave Bean parts page is confusing, it says there should be a standard 8" disc where your flywheel pic clearly shows it is 8.5".

So that is a p/n 074Q 6100 flywheel you have there? And what I need?

Thanks again,

Geezer
J Geezer
2004 Cadillac CTS-V
2003 Corvette Coupe
1969 Elan+2 Federal
(Past MGA, MGB, TR6, AH 3000 BJ8, XR4ti, BMW E39 540i/6, Lola T644 ... )
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PostPost by: types26/36 » Fri Feb 01, 2013 10:32 pm

The Elans with the four speed gearbox used an 8? clutch while the Elans with a five speed g/box used a 8.5? clutch (with a different pressure plate & release bearing)
It is common practice to fit the 8.5? clutch plate (friction plate) with the four speed gear box still using the four speed pressure plate (it fits with no problems and gives you a little more friction surface area)
My flywheel has probably had a 8.5? clutch and is why it shows the larger diameter.....I don't remember as it is with one of my ?engine projects?
I believe the 074 part number you are referring to is actually a Europa part number and it superseded the previous Lotus part number for the flywheel as the Europa flywheel has the timing marks marked on its rim.....hence a new part number but it will still fit the Elans.
To the best of my knowledge basically there are only two types of Lotus flywheels for the TC engine .....the four bolt and the six bolt so any six bolt Lotus TC flywheel will do whether it is the later Europa (with timing marks) or the earlier Elan type.
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PostPost by: JGeezer » Fri Feb 01, 2013 11:07 pm

Thanks again!

This is a great place to hang out, have read every post back to 2006 so far...
J Geezer
2004 Cadillac CTS-V
2003 Corvette Coupe
1969 Elan+2 Federal
(Past MGA, MGB, TR6, AH 3000 BJ8, XR4ti, BMW E39 540i/6, Lola T644 ... )
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PostPost by: JGeezer » Sun Feb 03, 2013 3:15 pm

Taking the side view, this flywheel really doesn't match either your TC or 711 Xflow pics

ClutchE.jpg and


But in any case, it's not the needed TC.
J Geezer
2004 Cadillac CTS-V
2003 Corvette Coupe
1969 Elan+2 Federal
(Past MGA, MGB, TR6, AH 3000 BJ8, XR4ti, BMW E39 540i/6, Lola T644 ... )
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PostPost by: types26/36 » Sun Feb 03, 2013 4:12 pm

Yes I see some differences but I'm not sure all crossflows had the same flywheel as it came in 1100/1300 and 1600, there is also the later Fiesta which had a crossflow engine and I believe the flywheel is different again.
It is also possible that your flywheel has been lightened/modified as the 1600 crossflow is a heavy piece of metal.
Attached is a side view of my and your flywheel.
Attachments
TWO FLYWHEELS.JPG and
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PostPost by: JGeezer » Tue Feb 05, 2013 3:35 pm

I see what you mean. In any case, I'm off shopping for a TC flywheel!
J Geezer
2004 Cadillac CTS-V
2003 Corvette Coupe
1969 Elan+2 Federal
(Past MGA, MGB, TR6, AH 3000 BJ8, XR4ti, BMW E39 540i/6, Lola T644 ... )
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