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Starter/generator belt tensioner on '68 PK

belt tensioner

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#1 Glarnold OFFLINE  

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Posted November 06, 2017 - 08:09 AM

New PK owner. I need to fabricate the belt tensioner for my 1968 PK with the center mounted starter/generator. Can anyone post a picture of one, maybe with some basic dimensions? When I got the tractor last summer it had a fabri-cobbled one on it. Thanks.
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#2 boyscout862 OFFLINE  

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Posted November 06, 2017 - 12:16 PM

Welcome to GTT. PKs are great tractors. Check in our Manuals Section. Someone that can help you will be along. BTW we like pics to help understand questions. You can also check with our sponsors for a used one. Good Luck, Rick


Edited by boyscout862, November 06, 2017 - 12:17 PM.

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#3 Glarnold OFFLINE  

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Posted November 06, 2017 - 02:21 PM

Thanks, Rick. Couldn't find anything in the manuals. Does anyone know which model years had the centered mounted starter/generator? That could help me find a parts list, maybe.

#4 classic ONLINE  

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Posted November 06, 2017 - 02:50 PM

I had to make my own starter generator mount and adjuster when I built my PK. I somewhat copied the original set up and it works great. I made the tensioner out of a long bolt. I just cut the head off, ground a flat where the starter generator attaches, and drilled a hole in the flat. The lock washer does not need to be on the tensioner as you see on mine. I removed the lock washer and just used two nuts.

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Edited by classic, November 06, 2017 - 02:52 PM.

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#5 boyscout862 OFFLINE  

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Posted November 06, 2017 - 07:06 PM

Try this manual. http://gardentractor...-owners-manual/ There are others. You can download three per day for free. Good Luck, Rick

#6 Alc ONLINE  

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Posted November 07, 2017 - 06:44 AM

I have one I could take a picture and give you the sizes but the one classic made is so much better , :thumbs:


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#7 Glarnold OFFLINE  

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Posted November 08, 2017 - 09:19 AM

Thank you all. The one Classic made looks very nice and do-able. Maybe a little worried about placing all that load on the clutch housing. Perhaps a plate to spread the load. Thanks again for everyone's help
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#8 classic ONLINE  

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Posted November 08, 2017 - 09:49 AM

You're welcome. The housing will handle the pressure of the adjuster with no problems. A plate wouldn't be a bad idea to spread the load, though. Here is a drawing of the adjuster from some Economy paperwork that I have. Only two square nuts were used on the adjuster in this drawing.

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#9 Glarnold OFFLINE  

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Posted November 08, 2017 - 12:09 PM

OK, I guess the PK designers weren't worried about the load issue. So, I'm off to the shop. Thank you, Classic. And thanks everyone!
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#10 classic ONLINE  

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Posted November 08, 2017 - 12:27 PM

You're welcome. I've been using my PK quite a bit for the past year now with no problems, so have at it. I used a 5/8" diameter bolt and nuts to make my adjuster.

#11 secondtry ONLINE  

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Posted November 08, 2017 - 12:56 PM

 If you were to tighten that adjuster tight enough to damage the casting you would most certainly destroy the SG bearings in short order.  Don 


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