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My super cheapskate rebuild smokes a bit--not bad


 
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atlarge54
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Joined: 15 Jun 2009
Posts: 565
Location: NE Indiana

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PostPosted: Fri Aug 19, 2011 6:32 pm    Post subject: My super cheapskate rebuild smokes a bit--not bad Reply to specific post Reply with quote

After running my C for well over a decade, this winter I decided to pull some much needed repairs. The clutch was kinda like a torque converter, front seal leaked so bad it was ruining the front tires, rear seal was worse, one plug was so oil fouled it took a minute or two to fire on all four. Flywheel had a dead spot in ring gear too.
Luckily I'd found a cheap parts tractor so I had a supply of parts handy. The block had wear in the lower portion of the cylinders, nothing radical so I scuffed them up with a cyl hone. Pistons and rings looked pretty good. One head looked pretty good and had rubber umbrella seals. New cam bearings. The crank was stoned and sanded in the block and the old bearings were shimmed till they fit.
I've been mowing with it all summer and it runs great but when it's left idling it smokes a bit and then smokes when the throttle is applied. Likely a valve guide issue or lower cyl wear or both. I checked compression (cold) today and had a solid 120 psi in all cylinders. All in all I'm pretty pleased with the results, can't get used to the lack of oil puddles. Only time will tell if the smoke gets better or worse.
 
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steve(ill)
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Joined: 29 Dec 2003
Posts: 2614


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PostPosted: Sat Aug 20, 2011 5:37 am    Post subject: Re: My super cheapskate rebuild smokes a bit--not bad Reply to specific post Reply with quote

sounds like you did all right. Honing or scuffing the cylinders is what helped the rings to seal. In general, not a good idea to reuse rings. I always do rings and gaskets at a minimum.... but looks like you did o.k. !!
 
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Gordon in IN
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Joined: 06 Dec 2000
Posts: 258


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PostPosted: Sat Aug 20, 2011 3:38 pm    Post subject: Re: My super cheapskate rebuild smokes a bit--not bad Reply to specific post Reply with quote

You might try using 10W-40 or 10W-50 Synthetic Oil (Full Synthetic not blend) in your engine. It may still use or "burn" some , but it should smoke a lot less. It also may make the engine last longer. Just one approach.
 
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