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Clutch spring

Started by mark1969, March 25, 2015, 11:00:29 AM

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mark1969

I've trawled the boards and the internet and cannot seem to find the answer to my question about the clutch spring...so the question is:

When tightening the diaphragm bolts, do I tighten them right up so the spring fingers are tight against the pressure plate and then torque them to 8NM? Or do I finger tighten and then torque to only 8NM so the spring fingers are still proud of the pressure plate and you can see part of the bolt behind?

The reason I'm asking is because even though there is a stated torque, it's not clear whether the bolts are supposed to be tightened right up and then torqued. Well, it's not clear to me anyway! And it's been bugging me for a while now...

I've got a whole new OEM clutch (spring/plates/steels) waiting to be fitted, and that took a lot of hunting down here in the UK, unless you want to pay ripoff prices - example one clutch friction plate is £18 which is about $27! I've ended up sourcing some of them from Europe, for much less than half of that price.

I would have ordered from RPM, but with shipping and the gamble of import VAT / other fees it can work out expensive...and I've been stung twice by import fees now (in 2 orders). I envy your prices in the U.S, they are often much less than ours...you are very lucky!  :drinks: 

Anyway, if someone has an answer to my question or even understands it, that would be marvellous..

Cheers guys.  :good2:








FJmonkey

Quote from: mark1969 on March 25, 2015, 11:00:29 AM
When tightening the diaphragm bolts, do I tighten them right up so the spring fingers are tight against the pressure plate and then torque them to 8NM? Or do I finger tighten and then torque to only 8NM so the spring fingers are still proud of the pressure plate and you can see part of the bolt behind?

The reason I'm asking is because even though there is a stated torque, it's not clear whether the bolts are supposed to be tightened right up and then torqued. Well, it's not clear to me anyway! And it's been bugging me for a while now...

I am not sure what the problem is? When the bolts are torqued to proper spec, the spring should not have two different positions. It has been a little while since I did my clutch. I did the finger tighten all around, made sure the spring was centered and the fingers looked evenly spaced with its mating part, then treated like any other circular bolt pattern.
The glass is not half full, it was engineered with a 2X safety factor.

'86 Ambulance - Bent frame, cracked case, due for an overhaul
'89 Stormy Blue - Suits my Dark Side

Mark Olson

use a crisscross pattern as you tighten the bolts evenly until they stop turning by small hand wrench , then torque them to spec .

be sure spring is facing correctly .  bowed side out. outer edge toward engine. 
Mark O.
86 fj1200
sac ca.

                           " Get off your ass and Ride"