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  #1  
Old 05-18-2021, 04:58 PM
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RustyShackleford RustyShackleford is offline
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Sounds like a broken connecting rod Not uncommon on these engines, and more often than not doesn't condemn the whole engine. Time to take 'er apart (slowly, and with many pictures and ziplock bags/labels/etc.) and see what you find.
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Old 05-18-2021, 05:11 PM
Imnaykid Imnaykid is offline
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Thank you.

So do you think take the CC-O head and put it on CC-71 while taking CC-O apart?

I could try that. Guess all I would need is the gasket.
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Old 05-18-2021, 05:24 PM
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I don't see why not, since they're both K161s. I would check the good head for flatness and buy a good head gasket (genuine Kohler gaskets are still readily available). Just be sure to retorque the head fasteners to 15-25 ft. lbs. after a heat cycle (lubricate the threads of the head fasteners with oil before torquing). While you're at it, you might as well take the opportunity to clean off any built-up carbon from the underside of the good head with a plastic scraper before you install it on the 71's engine.
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Old 05-18-2021, 06:50 PM
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Quote:
Originally Posted by RustyShackleford View Post
Sounds like a broken connecting rod Not uncommon on these engines, and more often than not doesn't condemn the whole engine. Time to take 'er apart (slowly, and with many pictures and ziplock bags/labels/etc.) and see what you find.
Agree with Mr Rusty. There's a lot to be learned by taking something apart. (And more yet by putting it back together). Those manuals were very well done.

As long as there's not a hole in the engine with oil dripping out, you stand a good chance of getting that engine rebuilt and back to running.
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Old 05-22-2021, 03:24 PM
Imnaykid Imnaykid is offline
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Again, Thanks.
On the CC-O. The valves do move up and down and the piston does not. Mr. Houtz was right. The fuel tank and head are off.
On the CC-71. The Helicoil did not hold with blue or red locktight. The parts guy just said run it in, well that didn't work. Can the head be re-tapped while on the engine? I don't want to change heads now, I wanted the engine swap to be an after mowing season project
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Old 05-22-2021, 06:41 PM
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Again, Thanks.
On the CC-O. The valves do move up and down and the piston does not. Mr. The Helicoil did not hold with blue or red locktight. The parts guy just said run it in, well that didn't work. Can the head be re-tapped while on the engine? I don't want to change heads now, I wanted the engine swap to be an after mowing season project

Well, your options are shrinking!

No, you can't (safely) tap the head with it still on the engine ... you're going to end up with a bunch of aluminum shavings down in the cylinder that way.



It's kind of hard to make sure of your problem. It SOUNDS like the helicoil won't stay threaded into the head because the threads for it are stripped/buggered up. If that's the case, it might be possible to buy a 2x oversize helicoil but I doubt it.

In any event, the head's gotta come off . That's a simple job UNLESS you snap off the bolt / stud that's near the exhaust port, which is always quite possible. Then you'll meet Mr Helicoil again.

Oh, and find a new Parts Guy for advice :-)
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Old 05-22-2021, 08:24 PM
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Here ya go.....you got 6 days to procrastinate about it.
https://www.ebay.com/itm/20346473013...8AAOSw5yxgqX7a
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