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Discussion Topic:
Adjusting Clutch Fingers 1935
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35ragtop |
03-13-2011 @ 12:49 PM
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Member
Posts: 57
Joined: Aug 2010
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Hi I am trying to adjust the 3 fingers on my 35 clutch and am wondering if Henry used a special crancked open ended spanner. The bolts are extremely tight and a straight spanner slips off easily.The bolts I am talking about are the ones that adjust the gap to the throw out bearing. Any suggestions would be appreciated thanks
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kubes40 |
03-13-2011 @ 1:35 PM
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Senior
Posts: 3374
Joined: Oct 2009
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As I recall those three screws are cinched once the original adjustment is made. I have welded these up (the heads)and ground them back to the correct specification. I give you credit in checking this critical area. MANY rebuilt pressure plates and some new (import junk)over look this specification. To find this out once the assembly is installed is sad to say the least.
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35ragtop |
03-13-2011 @ 4:13 PM
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Member
Posts: 57
Joined: Aug 2010
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mmmm thanks kubes40. yes sadly I suspected that it may mean pulling the gearbox again. I wish I had given the engine and running gear a drive around the block before putting the body on! To check the measurement with the gearbox off do I measure from the face of the flywheel? I am assuming that this adjustment will get rid of the clutch shudder.
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37RAGTOPMAN |
03-13-2011 @ 4:34 PM
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Senior
Posts: 1942
Joined: Oct 2009
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I was wondering why you are try ajusting the pressure plate,? clutch slipping ?, grinding into gear,? the pressure plate were set up outside of the car on a work bench with special tools, I think what you are trying to do is a hit and miss, if someone installed the clutch wrong and warped the PRESSURE Plate, you will never get it right, also if the face of the flywheel was resurfaced, the outside edge where you tighten down the flywheel should have been machined also, what you take of the flywheel you have to take the exact same amout of the leading edge also,this depth has be maintained, this measurement is critical, if you neen clutch parts try JOB LOT in NY, They advertise that they have clutch kits, and sell them in a set or seperate, hope this helps 37RGTOPMAN please post any updates so we know how you made out,
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35ragtop |
03-13-2011 @ 6:32 PM
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Member
Posts: 57
Joined: Aug 2010
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I read somewhere recently that if the throwout bearing did not engage all three fingers at the same time, this could cause clutch shudder. So what I noticed when peering into the inspection hole, that one finger was engaging before the other two, hence my decision to try and adjust the threaded bolt on the tip of the finger. I can remember my teacher back in the 60s saying a little knowledge is a dangerous thing!
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kubes40 |
03-14-2011 @ 7:01 AM
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Senior
Posts: 3374
Joined: Oct 2009
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It's true the height of these fingers must be adjusted with the pressure plate in it's free (relaxed) state. The were SUPPOSED to have been set up but as I stated earlier that is often NOT the reality. Import poop and poor rebuilds... just doesn't always happen. It's easy enough to adjust when you have it on your bench. You will need an accurate way to measure the height. A calibrated height stand does the trick. Know anyone that is in quality control? As much as I like Joblot, I'd NOT buy one of their clutches. I simply wouldn't risk it to save a few bucks. Surge Clutch in Illinois makes NEW ones that are reasonably priced and beautiful. As you are finding out, this job stinks when you have to do it twice. I, like you, found this out the same way you are now doing. If those fingers don't come in contact with the bearing at the same time, the bearing will prematurely fail.
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supereal |
03-14-2011 @ 8:53 AM
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Senior
Posts: 6819
Joined: Oct 2009
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It is virtually impossible to adjust the pressure plate fingers without the jig used at assembly. Once you move any of them, the pressure plate will not function properly. The usual reason for one or more fingers not contacting the release bearing is due to a broken or misplaced spring in the pressure plate. When installing the plate, it is necessary to start all the bolts attaching it to the flywheel, then draw them down a few turns at a time as you go around the flywheel. Otherwise, it is likely you will warp the case enough to produce your problem.
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35ragtop |
03-14-2011 @ 2:35 PM
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Member
Posts: 57
Joined: Aug 2010
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Well thank you guys once again for your help. When I installed the plate set I did the gentle tighten down routine and everything looked fine at the time. I must admit that I failed to check the contact with the fingers once I had the gbox in place.Only found the problem when I tried to go for a run. Does anyone have a comment on Fort Wayne reconditioned systems ? Dave h
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39 Ken |
03-15-2011 @ 4:31 AM
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Member
Posts: 380
Joined: Oct 2009
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Ft. Wayne Clutch has a good reputation. I haven't used them, but I plan to on my next rebuild. Friends that have used them indicate that they do good work. Ken
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kubes40 |
03-15-2011 @ 6:38 AM
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Senior
Posts: 3374
Joined: Oct 2009
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Ft. Wayne Clutch is in fact another good place. A bit more costly than Surge but good nonetheless. The fingers can be adjusted without a fixture. There is a specification from the face of the pressure plate to each finger (free state). I have found remanufactured clutches rarely address this specification and as the fingers wear from usage, this dimension goes outside the necessary specs. Unfortunately another example of the seemingly lost art of true quailty workmanship...
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