My 644 gave up the ghost

[Chad]

Well done, Eugen! Hopefully all sorted now. You've inspired me to take the head off my main 444 for a clean and then valve check. Gotta love the simplicity and ease of working on those K series Kohler's.

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[Eugen]

Well done, Eugen! Hopefully all sorted now. You've inspired me to take the head off my main 444 for a clean and then valve check. Gotta love the simplicity and ease of working on those K series Kohler's.

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Go Chad go! I have to say I really like the k series! So much that my Onan powered 446 will go on sale as soon as I can get it cleaned up for the show!

[ssmewing]

Screen Shot 2022-06-29 at 13.47.15.png


Well, it should teach me to look things up on google. The manual says 0.008-0.010 for intake clearance, not what I found on google somewhere which said 0.007-0.009. It looks like I set my intake valve clearance at the tight end but I think Noel @Propane57 would like it like this because it goes faster

For the record and so I don't look it up on google, here's the next relevant thing.


Screen Shot 2022-06-29 at 13.46.16.png

The manual you are quoting is for the very old Kohler engines that did not have adjustable tappets. The top part of the spec sheet in your pr=icture talks about grinding the valve stem. You do not grind the valve stems if the tappets are adjustable. The first spec you had were for those engines with adjustable tappets.

[Eugen]

@steadfast @ssmewing I believe the manual I am quoting is the correct manual, but I cropped the page and maybe that's what led to confusion. Here's the full page, sorry if it wasn't clear before.

[ssmewing]

@steadfast @ssmewing I believe the manual I am quoting is the correct manual, but I cropped the page and maybe that's what led to confusion. Here's the full page, sorry if it wasn't clear before.


0D91A3B0-9896-4CAC-9B2B-5F3569603638.jpeg

You are correct. Seeing the whole page shows it is the correct instructions.

[Eugen]

My youngest wants me to start this tractor pretty much always when we're around it. So yesterday we start it and drive it around a bit when this happens.

This engine is so powerful that by the sheer strength of its exhaust blow it broke the weld and spit out the muffler on the ground.

[Harry]

Doesn't look like a stock muffler! What is that from?

Keep the Peace
Harry

[Timj]

I'll bet she barks now. you are going to have to go a little easier on the NOS.
The list of things to do never ends.

[Eugen]

Doesn't look like a stock muffler! What is that from?

Keep the Peace
Harry

@Harry This is how this 644 came to me. The engine is a Kohler K321 but looks more like it was from a JD, definitely not the stock Case 644 engine.

[Eugen]

I'll bet she barks now.

Bark she does Tim!

you are going to have to go a little easier on the NOS.
The list of things to do never ends.

I know, shower handle broke yesterday, lost my full wallet downtown Toronto the day before. Big backhoe seems to lose more oil on the boom cylinders, something needs to be done about it. The list is long and keeps on getting longer. Indeed, it never ends.