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Clutch relay shaft
Posted: Wed Mar 06, 2013 5:46 pm
by SUE482
Well the next step on my refurb was to install a new clutch relay shaft and the associated parts, however, the fit is not very good as you can see as the face of the bronze bush is not flush with the arm. Has anyone experienced this before? I would appreciated the name of a supplier who has supplied one which is fit for purpose.
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Re: Clutch relay shaft
Posted: Wed Mar 06, 2013 6:15 pm
by DAVIDMCCULLOUGH
Once you fit the this in place between the chassis and the gearbox with the spring it should push in place ok.
Re: Clutch relay shaft
Posted: Wed Mar 06, 2013 6:59 pm
by SUE482
Surely the face of the arm should be flush with the face of the bronze bush so that all the forces are distributed equally about the face, not on one corner. I know there should be a washer between them, copper or fibre, but this doesn't alter the basic problem which when fitting the spring will do nothing.
Re: Clutch relay shaft
Posted: Wed Mar 06, 2013 7:58 pm
by David W.
The engine moves and vibrates and gyrates all the time, that is why we have the rubber engine mounts, and the engine steady cables to tame those 37 angry horses. As the engine moves relative to the chassis, the linkage will be constantly changing alignment. It will rarely be in the ideal perpendicular position. With the washer in place, this is going to be as good as you get.
Re: Clutch relay shaft
Posted: Wed Mar 06, 2013 8:45 pm
by bmcecosse
I agree - it looks fine to me - as good as new probably........
Re: Clutch relay shaft
Posted: Wed Mar 06, 2013 9:09 pm
by SUE482
Well I think its bit of bad engineering I'm sure the old one wasn't like the first drawing, more like the solution. Unfortunately I have lost the original to compare.

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Re: Clutch relay shaft
Posted: Wed Mar 06, 2013 10:04 pm
by les
I agree, it's bad. The items are not engineered, just jigged up and welded. As with many parts now, there are manufactures that have lost sight of what job their products are for! It's become simply a process. Apart from the solution you offer, you could grind the leg slightly to give a clearance. I've had to correct many parts myself during a resto. One of the reasons I'll not be going there again.
Re: Clutch relay shaft
Posted: Wed Mar 06, 2013 10:07 pm
by drivewasher
The problem seems to be the shape of the arm and nothing to do with the bronze bush.
Either there is not enough "land" on the arm around the shaft, or the arm isn't formed properly.
Can you not adjust the arm relative to the shaft with a vice and say a pipe and a professional adjuster tool (hammer)
Re: Clutch relay shaft
Posted: Wed Mar 06, 2013 10:13 pm
by drivewasher
Another think about it. The bush seems to be just a support for the shaft to allow it to rotate. The bush isn't actually a thrust bush is it?
Re: Clutch relay shaft
Posted: Wed Mar 06, 2013 11:45 pm
by bmcecosse
We could all see what was wrong - point is - we don 't think it really matters too much! It will be fine in use - put a washer or two on the shaft if you like to space the angled arm away from the bush..........
Re: Clutch relay shaft
Posted: Thu Mar 07, 2013 1:42 am
by David W.
Grind one side of a washer off into a D shape to accommodate the arm.
Re: Clutch relay shaft
Posted: Thu Mar 07, 2013 3:57 pm
by katy
IIRC I had the exact same situation, I just filed a bit off the arm to allow the bushing to sit flat against the arm assembly, similar to whats shown in the second sketch.
Re: Clutch relay shaft
Posted: Thu Mar 07, 2013 6:55 pm
by SUE482
Thanks for all the advice. This is what I did as a stopgap while I wait for feedback from the suppliers, it does mean that the spring on the other side will be compressed slightly more but I don't see a problem.
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Re: Clutch relay shaft
Posted: Thu Mar 07, 2013 7:15 pm
by smithskids
Like bmcecosse says the whole thing is moving around every time you change torque or hit a bump in the road. If you have only filed part of the washer next to the arm it may be advisable to put a blob of weld on it to stop it moving around . Good luck . Smithskids.
Re: Clutch relay shaft
Posted: Thu Mar 07, 2013 7:57 pm
by bmcecosse
It'll be fine....forget it!