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Garden Tractors Discussion Board

Topic: 1978 JD316 pto clutch assembly
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Mark Paulus

09-28-2009 10:19:57
12.192.249.131
96631



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Hello,
I am in the process of replacing the Ogura coil on my tractor. I removed the armature (the outer portion #7)and rotor (inner portion next to the coil #4) and the coil (#2)with no issues. I took the parts to the bench and stacked the armature face against the rotor. I ASSUME the two faces should touch. I have a small gap, about 0.040", between the two. The bushing (#6)in the armature that goes around the crankshaft is preventing the armature from coming in full contact with the rotor.

My question is this; should the faces be in full contact when the pto is engaged?

If yes, then the armature bushing needs to be pressed a bit farther into the bearing.

I have uploaded a jpeg of the pto assembly taken from the manual.

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Larry Gahimer

09-30-2009 20:43:39
67.142.165.34
96680



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Re: 1978 JD316 pto clutch assembly in reply to Mark Paulus, 09-28-2009 10:19:57  
The book on my 317 said 0.012 to 0.014 clearance between the clutch

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steve in in

09-28-2009 14:29:11
66.14.205.186
96636



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Re: 1978 JD316 pto clutch assembly in reply to Mark Paulus, 09-28-2009 10:19:57  
No, they should not be touching. There should be a little bit of clearance.

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Mark Paulus

09-29-2009 05:55:46
67.177.136.226
96655



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Re: 1978 JD316 pto clutch assembly in reply to steve in in, 09-28-2009 14:29:11  
Thank you Steve!

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