McCleod Twin disc question
06-17-2007, 04:17 PM
#1
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Join Date: Nov 2002
Posts: 102
McCleod Twin disc question
Well I have a couple of questions about the McCleod twin disc clutch:
I took it out of the car about 2 years ago and because of school I havent had time until now to put the engine and trans back in the car. Basically I cant remember where all of the little washers go and if there are any specs on the amout of movement the discs and middle pressure plate has. Thanks for any help ! Paul
I took it out of the car about 2 years ago and because of school I havent had time until now to put the engine and trans back in the car. Basically I cant remember where all of the little washers go and if there are any specs on the amout of movement the discs and middle pressure plate has. Thanks for any help ! Paul
06-18-2007, 09:28 AM
#2
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Join Date: Dec 1969
Location: San Diego, CA
Posts: 4,950
From the McLeod site: http://www.mcleodind.com/faq.html#clutches
Look unit over before disassembly.
Unbolt pressure plate, remove nuts (Note, Blue stripe on p/p, floater and flywheel. This is how unit should be re-assembled).
Remove top disc. Note: hub points toward the trans. Re-assemble this way. 4. Unbolt (3) three bolts that hold floater (Note: strap-on floaters are on the flywheel side. Floater must be re-installed this way.
Special note: Three (3) floater straps, stands and assorted shims. Keep the same amount of shims and the same thickness shims with each stand. Set aside each stand and shims with its own bolt. This prevents mixing or loss.
Remove bottom disc. (Note: Hub points toward transmission. Also re-assemble this way.)
Hand thread (6) 3/8 –24 twelve point nuts back on the (6) studs so you won’t lose or drop pressure plate stands and shims.
Install flywheel on crank. Torque to factory specification.
Once flywheel is installed on engine, you can now remove (6) 3/8” rod nuts from the p/p studs.
Re-assemble unit, check disc hubs and floater strap direction. Blue alignment stripe on all parts must line-up.
After installing bottom disc and floater plate, use a feeler gauge to check the clearance between them. .020-.025 should just slip in between. The bottom disc should just turn by hand with little front to back movement. This is checked with the flywheel turned up on its edge not lying flat, if too much gap is present (over .025) the floater will push the top disc into the pressure plate, eliminating release. If there is not enough release (less than .020) the bottom disc will drag on the flywheel and floater, and it will not release.
Torque three (3) floater strap bolts to 25 lbs max. – red lock-tite is advised.
Torque six (6) pressure plate nuts 35 lbs. Max. No lock-tite.
Finish installation of bellhousing & transmission
Also, the shims used may be different thickness, keep them in sets.
Look unit over before disassembly.
Unbolt pressure plate, remove nuts (Note, Blue stripe on p/p, floater and flywheel. This is how unit should be re-assembled).
Remove top disc. Note: hub points toward the trans. Re-assemble this way. 4. Unbolt (3) three bolts that hold floater (Note: strap-on floaters are on the flywheel side. Floater must be re-installed this way.
Special note: Three (3) floater straps, stands and assorted shims. Keep the same amount of shims and the same thickness shims with each stand. Set aside each stand and shims with its own bolt. This prevents mixing or loss.
Remove bottom disc. (Note: Hub points toward transmission. Also re-assemble this way.)
Hand thread (6) 3/8 –24 twelve point nuts back on the (6) studs so you won’t lose or drop pressure plate stands and shims.
Install flywheel on crank. Torque to factory specification.
Once flywheel is installed on engine, you can now remove (6) 3/8” rod nuts from the p/p studs.
Re-assemble unit, check disc hubs and floater strap direction. Blue alignment stripe on all parts must line-up.
After installing bottom disc and floater plate, use a feeler gauge to check the clearance between them. .020-.025 should just slip in between. The bottom disc should just turn by hand with little front to back movement. This is checked with the flywheel turned up on its edge not lying flat, if too much gap is present (over .025) the floater will push the top disc into the pressure plate, eliminating release. If there is not enough release (less than .020) the bottom disc will drag on the flywheel and floater, and it will not release.
Torque three (3) floater strap bolts to 25 lbs max. – red lock-tite is advised.
Torque six (6) pressure plate nuts 35 lbs. Max. No lock-tite.
Finish installation of bellhousing & transmission
Also, the shims used may be different thickness, keep them in sets.
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