Lotus Elan

Diff carrier to chassis fixing torque

PostPost by: englishmaninwales » Sat Mar 11, 2017 3:15 pm

Apologies for this one - I've searched the manual and on here, what is the torque?
Thanks
1966 Elan S3 Coupe
1994 Caterham 7
englishmaninwales
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PostPost by: bitsobrits » Sat Mar 11, 2017 5:50 pm

I don't believe it's published because it's not critical. The diff carrier "hangs" from it's rubber mountings, and the rubber mountings are supported by the chassis. So the setscrews that hold the mountings in place need only be reasonably tight, and the long bolts that go through the mountings and the diff carrier need only to be reasonably tight (I believe the factory used nylon locknuts here). The lower torque rod forward mounting bolts though need to be very snug to keep them from wearing away at the chassis as the diff squirms under load. I would recommend using AN hardware with proper grip length here to ensure no threads are in shear. In the US Pegasus Racing Supply and Aircraft Spruce are reasonably priced sources of AN hardware.

As for torques, if you are still concerned, you can find online generic torque tables based on fastener size.
Steve

Elan S1 1963-Bourne bodied
Elan S3 1967 FHC pre airflow

Formerly:
Elan S1 1964
Elan S3 1966 FHC pre airflow
Elan S3 1967 FHC airflow
Elan S4 1969 FHC
Europa S2 1970
Esprit S2 1979
bitsobrits
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PostPost by: englishmaninwales » Sat Mar 11, 2017 11:00 pm

Ok, thanks, that's very helpful.
1966 Elan S3 Coupe
1994 Caterham 7
englishmaninwales
Fourth Gear
Fourth Gear
 
Posts: 519
Joined: 26 Jul 2013
Location: Ruthin North Wales

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