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  #1  
Old 08-12-2014, 03:56 PM
Darrell Darrell is offline
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Default 71 Engine Swap/PTO Question

A question for anyone that has hopefully did this swap ...

I am thinking about putting a single cylinder with electric PTO in a 71. I know about the 1/2" PTO belt and notching the frame , but will the electric PTO line up with the mule drive pulleys ???

Thanks !!!!
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  #2  
Old 08-12-2014, 04:07 PM
J-Mech J-Mech is offline
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What engine are you wanting to use?

What's wrong with using the mechanical PTO?
If you use an electric PTO, how are you gonna start it? Or are you using an "AQS" engine?

Not really enough info.......
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Old 08-12-2014, 04:11 PM
Darrell Darrell is offline
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The 71 doesn't have an engine in it , so nooo mechanical PTO.

The engine has an electric starter.
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  #4  
Old 08-12-2014, 04:22 PM
J-Mech J-Mech is offline
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Wiring will change..... quite a bit actually.

The PTO should line up, but dunno. I think it would be easier to find another engine that do what your getting ready to do. Just my FWIW, engines up to a 12hp will fit with no frame mods. But the gear drive starter models have big flywheel covers on them. I think, (but not sure) that they were all the same size up to the 16hp. Might have to notch the frame a lot to make things work...... Your tractor, so your choice. I'd look for a belt drive starter motor.
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Old 08-12-2014, 09:22 PM
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dvogtvpe dvogtvpe is offline
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first you have to spread the frame 147 style to get it in there since it has the big flywheel. then you need to figure out where to put the gas tank since it has a separate mount in a QL. then you pretty much have to rewire the whole tractor since the 2 engines share only 1 thing in common electrically and that would be the ignition wire. shorter throttle and choke cables. then you can worry about the PTO. should come out pretty close but by now you've pretty well re engineered the whole tractor so fabing up a different mule drive shouldn't be all that bad.
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Old 08-13-2014, 12:01 AM
Yosemite Sam Yosemite Sam is offline
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The guys have been pretty-much on the money so far.

A change-over like this is quite an undertaking. Not sure I'd want to try and tackle this one.

Good luck.
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Old 08-13-2014, 10:12 AM
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Sam Mac Sam Mac is offline
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What they said. I did it with a Mag12 into a 71. Didn't put a PTO on it because it's setup for plowing. Here is the thread on the build.

http://www.onlycubcadets.net/forum/s...ad.php?t=20585

Clutch or engine removal is a PITA because of the deep sump on the Mag. You cant slide the engine forward to get it out or in, you have to use a special coupler from Midwest Super Cub or slide the rear back.
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Old 08-13-2014, 02:25 PM
Darrell Darrell is offline
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Thanks for the info !!

I may have to try it , i just didn't want to go to all the work and the PTO/Mule Drive not line up.
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