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B&s 18 Hp Pto Clutch Removal ?


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#1 KennyP ONLINE  

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Posted October 28, 2012 - 04:59 AM

I have an 18 HP I need to pull the PTO clutch off of. The engine is a 422437-1209-01, 88030112 flat head twin cylinder. I removed the bolt into the crankshaft and see some nice rust in there. How do you hook a puller to it?
Image009.jpg
As far as I know, this is a good PTO clutch and I don't want to destroy it.

#2 Arti ONLINE  

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Posted October 28, 2012 - 09:29 AM

I've been watching this thread because I have run into the same problem. Was hoping someone would post a good idea.

The last one that was stuck I used a pry bar behind the clutch Light Pressure on the bar.Threaded the bolt back into the crankshaft and hit the bolt with a hammer.
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#3 ol' stonebreaker OFFLINE  

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Posted October 28, 2012 - 09:55 AM

The only option I see is to drill a hole thru a piece of 1/4" or 3/8"x 1 1/2" or 2" flat bar and weld a nut on it for a pusher bolt and then weld the flat to the raised portion of the pulley next to the hub. Leave the washer off the retaining bolt in the crank and push on it. It may also require welding spacers between flat and pulley. You could first try hooking puller on pulley flange but if it's rusted on hard there's a good chance of bending pulley flange.
Mike

Edited by ol' stonebreaker, October 28, 2012 - 09:55 AM.

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#4 marlboro180 OFFLINE  

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Posted October 29, 2012 - 09:22 AM

I've had good luck ( mostly ) pulling sheaves and such with a standard 3 jaw puller. I make sure the shaft is as free of rust as I can make it with emery cloth, then give it a good shot of penetrating oil. Then hook up the puller, and while there is a fair amount of tension on the pulley or PTO, give the puller center bolt a whack with a decent sized ball-peen hammer. Repeating this process of tension, and the whack, will work most of the time though I have had to wait some ( like overnight, or multiple days ) for the pressure to do it's thing.

Beyond that, I go for the blue tip wrench. :D

#5 KennyP ONLINE  

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Posted October 29, 2012 - 06:15 PM

It's off. Steve was bored today. I had put some acetone/atf on it the other day. He hooked a 3 prong puller on it and didn't even need a wrench to pull it off. Thanks for the tips folks, may come in handy at a later date.

#6 ol' stonebreaker OFFLINE  

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Posted October 29, 2012 - 06:37 PM

Glad it came off w/ no trouble, Kenny. I'll suggest putting antiseize on the shaft when you reassemble. Probably won't even need a puller the next time. I've come to be a strong believer in the stuff. Whenever an iron bolt goes in alum. it has the antiseize on the threads.
Mike
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#7 KennyP ONLINE  

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Posted October 29, 2012 - 07:22 PM

Mike, that was already in the plans. I use it on a lot of things.

#8 ol' stonebreaker OFFLINE  

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Posted October 29, 2012 - 10:41 PM

Glad to hear it. I just thought I'd throw that out.
Mike

#9 mjodrey OFFLINE  

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Posted October 30, 2012 - 04:26 AM

Glad you got it off Kenny. :thumbs:

#10 KennyP ONLINE  

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Posted October 30, 2012 - 05:25 AM

Glad to hear it. I just thought I'd throw that out.
Mike

Glad you did! Other folks might not have thought of that.




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