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Guest · Posted: Wed Mar 15, 2000 3:25 pm Post subject:

From: john
Email: johnb@seecs.bangor.ac.uk
Date: 15 Mar 2000
Time: 16:25:14

Hi all,

Can someone tell me if there is a torque tube on a '83 uk 924? If so what does it do and how do I check it is ok.

Thanks
John

Guest · Posted: Thu Mar 16, 2000 6:03 am Post subject:

From: Webmeister
Email: webmeister@924.org
Date: 16 Mar 2000
Time: 07:03:50

Generally, folks are referring to what I like to call the 'driveshaft housing' assembly. The driveshaft between the engine and transmission is completely enclosed in a roughly 5" diameter steel tube. The tube has flanges at both ends which bolt to the engine and transmission. This makes the engine and transmission into one solid long assembly. The driveshaft itself is much 'skinnier' (23mm or so) than the more usual exposed type and is supported with 3 (or 4) bearings inside the tube to keep it from 'whipping'. (For those who may be familiar; this setup is identical to what is used on helicopter tail rotor driveshafts using 'hanger bearings').

What can go wrong? The bearings eventually get bad. So the only way to check is to listen for the bearing noise coming from the tube and/or vibrations caused by the driveshaft flexing (whipping) in loose bearings. Not always easy to distinguish just where the noise is coming from.

Cheers,
John Brown