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Case Tractors Discussion Forum
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D Camshaft question

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Ken in AZ

03-29-2006 07:32:53




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I"ve been tearing down the 1940 DH engine and finally split the tractor last weekend. Good plan, since I found a host of issues. The clutch plate had started coming apart and I found that the camshaft had slid back and was making contact with the flywheel. It has worn a ring down on the end of the camshaft and I"m pretty certain the factory didn"t intend it to be like this...

Question is, what keeps the cam from rubbing against the flywheel? Is it the thrust washer under the gear at the drive end? How thick is that supposed to be? And how much clearance should I have between the flywheel and the block?

Just trying to sort this out before I do anything.

Thanks for the help!

Ken in AZ

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flambeau1

03-30-2006 18:59:04




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 Re: D Camshaft question in reply to Ken in AZ, 03-29-2006 07:32:53  
Don Livingston sells brass cam thrust washers to replace the fiber washer which was nonexistant in every c and dc I've had apart. You should be able to either post for him on this forrum or go on Ebay and he usually has them on there.



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Ken in AZ

03-29-2006 11:12:04




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 Re: D Camshaft question in reply to Ken in AZ, 03-29-2006 07:32:53  
Thanks for the note. I noticed there was a washer when I looked at the parts book this morning but haven't been out to the shop to see if the washer is still there and in one piece.

Ken in AZ



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DBoll

03-29-2006 09:10:39




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 Re: D Camshaft question in reply to Ken in AZ, 03-29-2006 07:32:53  
with washer gone it should still run though usually they will be noisy, back of cam should not protrude beyond the rear of the block much if any. check for block or timing gear wear, the original washer was made of fiber and they eroded over time, you can make or buy a new brass one, figure out how thich it needs to be to make both gears close to even, there should be plenty of room between block and flywheel

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