Early or Late style clutch

Post Reply
keiser
Member
Posts: 27
Joined: Thu Jul 12, 2007 2:18 pm

Early or Late style clutch

#1

Post by keiser »

What do most of you run for your clutch - the correct 3 1/2 plate with spring disk or the later 5 plate used on the shovelheads?

Pros and cons? Any issues with clearance using the later setup with tin primary?
Last edited by keiser on Thu May 29, 2008 4:25 pm, edited 1 time in total.
Cotten
Senior Member
Posts: 6937
Joined: Sun Feb 10, 2002 2:30 am
Bikes: -
Location: Central Illinois
Has thanked: 112 times
Been thanked: 310 times

#2

Post by Cotten »

My objective experience is that my 86" 65' with a hack (and too light of flywheels) would spin a "5"-plate assembly until the steel plates burnt into a 'rosette' pattern, like flower petals. Twice.
Instead of ordering new, I hurriedly stuffed in some fat fossil friction discs and rust-pitted steels out of 'the Pit', but no spring plate since you can't hear a grunch through the aluminum casting anyway. They are still in there years later (on a second motor!).

Either styles of covers will accomodate any clutch pack. Ignore the book measurement and strive for a pressureplate that fully disengages parallel with a minimum travel of the clutch arm, with free play upon the throwout bearing. Its easy.

....Cotten
PS: If you are running a belt, you will probably only find "5" packs for dry service.
Post Reply

Return to “Clutch & Mousetrap”