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Minneapolis Moline Tractors Discussion Forum
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ZAU engine parts

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1031D

12-06-2005 09:42:58




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Where can I find a good crank and bearing set for a 206B engine? Does 3 3/4" pistons have any effect on the life of the engine since the cylinder walls will be .125" thinner? How much more power will this oversize give?




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Augie

12-06-2005 16:50:51




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 Re: ZAU engine parts in reply to 1031D, 12-06-2005 09:42:58  
Unless your blocks are really bad corroded in the water jackets you won't have any trouble at 3.75". The .125" overbore only thins the cylinder walls by .0625". There are some out there running at 3.875". It takes a pretty good set of blocks to hold that.

Going from 3.625" to 3.75" gains you 14ci. If you're looking for horsepower there's more to be gained by improving the air flow.

Welters sells a set of 3.81" Jahn's pistons for $69/hole. Not a bad deal if you skip their $135 rings and buy those at your friendly local auto parts store for $70 or so.

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BCnT

12-06-2005 15:59:32




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 Re: ZAU engine parts in reply to 1031D, 12-06-2005 09:42:58  
i got a complete running 206A in a power unit for sale...i'm in Texas if youre interested.



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Duane Emge

12-06-2005 14:41:48




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 Re: ZAU engine parts in reply to 1031D, 12-06-2005 09:42:58  
Wilbert Kerchner of Mendota Ill. has had any part we have needed. My dad bought a ZA crank from him a couple years ago. His number is 815-539-6965



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neil Olstad

12-29-2005 20:36:54




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 Re: ZAU engine parts in reply to Duane Emge, 12-06-2005 14:41:48  
Hi
I would like to know if you have a hydraulic system to fit an "MM model Z'?
Thankyou
Neil



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