Board index Flathead Power-Technical Questions, Answers, and Suggestions Indians 47 CHIEF CLUTCH

47 CHIEF CLUTCH

Moderators: Curt!, Pa

Post Mon Nov 15, 2010 1:11 pm

Posts: 190
Location: Clearwater, fl
Hello All, My clutch was not disengaging all the way so I decided to install a King Clutch. Problem is, now the pedal won't stay in the disengaged position when the engine is running. It wants to creep back to the engaged position. With the engine off it stays fine. I've taken it apart at least 3 times and all looks fine. Clutch pack is the same thickness as the original. I've tested it with and without fluid. Any help will be greatly appreciated. Randy

Post Mon Nov 15, 2010 2:29 pm

Posts: 11
Maybe you need to tweak the friction disc on your clutch pedal. Pull the split pin and give the nut a turn.

Post Mon Nov 15, 2010 2:31 pm
jib

Posts: 575
Location: devon,england
randy ,whats the differances in the clutchs?
Dude, check out that jibhead, he's crazy. Hasn't been sober for 40 years

Post Mon Nov 15, 2010 2:53 pm

Posts: 190
Location: Clearwater, fl
I've tightned the nut with no effect.

The old plates were original type solid fiber and the new are aluminum with bonded Kevlar.

Post Mon Nov 15, 2010 2:59 pm
jib

Posts: 575
Location: devon,england
might have to replace the friction disc in the pedal mech!
Dude, check out that jibhead, he's crazy. Hasn't been sober for 40 years

Post Tue Nov 16, 2010 8:09 am

Posts: 190
Location: Clearwater, fl
Ok, I tried cleaning the old fiber and steel disc in the pedal mechanism. They are now greese free and I scuffed up all the surfaces with some corse sand paper. Same thing happening.

Am I missing something, or am I correct when I say that the only action on the pedal is caused but the clutch springs? IE you disengage the clutch (toe forward) this compresses the springs via the worms action on the release disc and this cunducts the springs energy to the pedal. So why does the pedal stay put when the engine is off? What action does the running engine have on the pedal, except vibration?

Post Tue Nov 16, 2010 11:48 am

Posts: 11
When the engine's running, the lifter plate will be spinning the throw out bearing. One of the races is on the end of the clutch worm. This may have an effect. The pedal friction disc may be contaminated with oil or grease.

Post Tue Nov 16, 2010 12:43 pm

Posts: 190
Location: Clearwater, fl
OK, it's spinning, but the worm isn't spinning. Besides, if it's spinning froward, this would cause the pedal to be forced forward not backward, right?

Post Tue Nov 16, 2010 2:01 pm

Posts: 11
As you say Anteks, the vibration from the rotating release bearing may be the cause the worm to back off assisted by the clutch springs. Still reckon either your friction disc is oiled up, or worn, as you don't seem able to get it to grip. Can you put a packer behind the nut?
Just my tuppence worth!

Post Tue Nov 16, 2010 2:07 pm

Posts: 190
Location: Clearwater, fl
Thanks for the input. I've got another fibre disk on the way. Is a packer a washer?

Post Wed Nov 17, 2010 10:33 am

Posts: 11
Yes. Anything to put a little more pressure on fibre disc. To take up any wear. Hope a disc helps.

Post Sun Nov 21, 2010 4:29 pm

Posts: 190
Location: Clearwater, fl
Well, I installed the new fibre washer in the foot pedal today, and the result is the same. The clutch will not stay disengaged. While doing it, I noticed a lot, (maybe 3/32") end play in the clutch hub. Anyone know what this measurment should be and if it can have any effect on my problem? Thanks, Randy

Post Sun Nov 21, 2010 8:31 pm
Pa Site Admin

Posts: 5661
Location: Ohio USA

I would assume it could have a lot to do with the problem, though I know very little about Indians. If I read you correctly...the hub is following the plates out ? Pa

Post Mon Nov 22, 2010 2:32 pm

Posts: 11
Manuals specify 0.010" endfloat on mainshaft as stock. Hub is straight on shaft so same measurement. That's for both Scout and Chief. My Scout is running 0.024" with no problem.
When you did the clutch did you change anything else? Oil type etc. Have you had the bike out with the new clutch? How is she shifting?
How tight are you making the clutch pedal nut? Just seems strange that all you changed was the clutch pack. Maybe the whole setup just needs to settle in.
You might be better asking the question on the Virtual Indian mailing list. There's some proper old school experts on there. And they're helpful. http://www.virtualindian.org

Post Mon Nov 22, 2010 4:22 pm
Pa Site Admin

Posts: 5661
Location: Ohio USA

Indianscot....you related you have .024" endplay on your hub. he is looking at close to .094". he said around 3/32". That is quite a bit. If all of the discs are following the hub away, they can't let go. Pa Pa

Post Mon Nov 22, 2010 8:17 pm

Posts: 190
Location: Clearwater, fl
Pa, I'm not sure how familiar you are with Indians, but the clutch in an Indian is differrent than a Harley. The hub is splined and the steel plates float in the splines. The hub is directly connected to the tranny mainshaft. The way I understand it, the "worm," which is attached directly to the clutch pedal and extends through the primary case, pulls on the release plate further collapsing the clutch springs making room for the fibre clutch plates to disengage. I'm not sure more endplay means the plates cannot disengage as the steel plates have room to float back and forth on the clutch hub and the fibre plates float on the studs. Tough for me to explain, but here's a diagram at http://www.jerrygreersengineering.com/p ... 47&m=Chief

Post Mon Nov 22, 2010 8:50 pm
Pa Site Admin

Posts: 5661
Location: Ohio USA

Thanks Anteks. That is basically what I invisioned. But if the hub follows the plates outward to far, plate clearance never materializes. Correct ?

Post Tue Nov 23, 2010 6:29 am

Posts: 190
Location: Clearwater, fl
Not really sure, but the way I see it, because the release plate is on the outside and pulls outward to disengage, and the plates float freely on the hub, the distance between the release plate and the back of the clutch basket, is uneffected by where the clutch hub is. This distance is the area where the plates engage and disengage. The only difference the position of the hub is, that I can see, is where the steel plates start out. Once engaged they all get squeezed between the release plate and the back of the basket, and the hub can float inbetween the plates whatever the distance the end play is. So.........

Post Wed Nov 24, 2010 12:26 pm

Posts: 11
If the endfloat is too wide the clutch slips as the hub goes too far back and as a result the outer steel slips over the hub and doesn't let the springs engage the clutch. Happened to my Scout.

Post Wed Nov 24, 2010 1:02 pm
jib

Posts: 575
Location: devon,england
just a thought ,have you tried disconnecting the linkage from the pedal mech to the clutch?

is the friction thingy stiff or easy ?
Dude, check out that jibhead, he's crazy. Hasn't been sober for 40 years

Next

Return to Indians

cron