Clutch Disassembly

[Hellion]

...of an unknown make, mounted on a 5 hp Briggs 130200, off of a Manco 475. Might be original to the kart. After hitting this speed bump, I did my research on centrifugal clutch removal and dis-assembly but the types used for demonstration weren't as complex as this one. So I'm scratching my head here.

I've got the drum removed. There was a set screw behind the clutch, that is removed. I'm at a loss as to what is holding the inner shoe assembly on the shaft.

Illustrated photo:
#1: Appears to be a dimple approx 1/4 x 1/8"
#2: Installed circlip
#3: Groove where outer circlip (now removed) was installed
#4: Is this a hollow sleeve?

The inner shoe assembly wiggles a bit so I know it's not seized to the shaft, but it does not spin freely with the set screw removed...

#1 seems to be a dimple peened into the sleeve (#4) if #4 is a sleeve.

 

[chancer]

I think that "dimple: is just where a built in keyway is on the sleeve. It is probably just stuck on the crankshaft. Most likely the key is damaged, and now it is just stuck. Bummer.
Tip tap with a hammer gently.
Penetrating oil.
Or let me see if I can find the homemade clutch puller thread by Fabroman.

How is my spelling and grammar? Do you understand the words that are coming out of my fingertips?

---------- Post added at 04:46 PM ---------- Previous post was at 04:44 PM ----------

Here you go
http://www.diygokarts.com/vb/showthread.php?t=18898

 

[Hellion]

There's another possibility: it occurred to me the rim in front of #3 (the groove) might be a washer or some sort of solid circlip that might be keeping the whole mess on the PTO shaft. In other words, it may be retaining the hollow sleeve or spacer (if that's what it is) which in turn is retaining the clutch shoe assembly.

 

[chancer]

I think that "rim" is just part of the groove that holds the circlip you removed to get the drum off.

 

[B.M.800]

You're trying to remove clutch from engine?

 

[Hellion]

Yes, indeed sir.

 

[chancer]

Did you get it off?
Looks like it should slip right off. So just a little persuasion and leverage should do it.

Hmmph... I would have thought persuasion was "persuation".

 

[2SlickNick]

I use a tire spoon on the back side of the clutch - like a lever and give it gentle taps with a hammer until clutch slides off... and plenty of WD40.

 

[B.M.800]

be careful prying on it, if your up against the engine bad things can happen.

Use penetration oil liberally. tap it with a hammer, heat it with a torch. tap it some more. More oil. Tap it. Heat it. Oil. Heat. Tap.
I use a pulley puller.

Then, when you put a clutch back on, slather on a healthy dose of anti-seize.

If the previous owner, or the factory would have done this, it might have saved me a clutch...

 

[Hellion]

It is probably nothing more than burrs on the shaft and in the keyway. My brother is more knowledgeable than myself, so he'll take a look at it as well. Thanks for the warning too--gentle persuasion is kind of difficult to do sometimes. It can be hard to modulate force.

I will keep you all posted. I like to have a complete beginning and end.

 

[chancer]

I will keep you all posted. I like to have a complete beginning and end.

I like the smart a$$es in the middle.

 

[Hellion]

Ze clutch is compleetely off ze shaft now. I'm kind of surprised to have gotten no feedback on whether that sleeve was in fact a sleeve. It's part of the clutch and is peened onto the PTO shaft. It's the bearing surface that the drum rides on (and where you lube it).

So what I did was sit down at the table, place some scrap 3/8" plywood pieces between the clutch and the sump cover and pried with two screwdrivers on either side. It shot off the shaft and landed on the floor. D'oh!

It's not like I was slaving over this clutch for hours, trying to hammer it off. The engine was merely sitting on the table, not bolted down and it was just light force that popped it free. Proof below.

I like the smart a$$es in the middle.

You like yourself? You were the only one really derailing this thread with your mindless jibber-jabber.

 

[chancer]

I do what I can!
Jibjab jibjab.
I can drown a glass of water and kill a dead tree!
How many retards will listen to me?

 

[Denny]

That tube is part of the clutch assembly. The bronze bushing that is in the drum that you lube rides on it. It must come off.

Denny

 

[Hellion]

Well, gee thanks. Your timing is impeccable but better late than never, huh? I guess you need to log in more often--spread that wisdom of yours around a little bit more.

 

[ezcome-ezgo]

Well, gee thanks. Your timing is impeccable but better late than never, huh? I guess you need to log in more often--spread that wisdom of yours around a little bit more.

I don't recommend you get a smart-@$$ attitude with senior members of the forum.

 

[chancer]

But they are both Seniors!!!
No Wait
Denny is a Legend!

 

[Hellion]

I don't recommend you get a smart-@$$ attitude with senior members of the forum.

Warning: my posts may contain sarcasm. Viewer discretion is advised.

 

[Denny]

Well, gee thanks. Your timing is impeccable but better late than never, huh? I guess you need to log in more often--spread that wisdom of yours around a little bit more.

I'm just happy I could help.

Denny

 

[chancer]

Any update on this Engine Build???