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Ford 4500 6/4 Transmission

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Ray T.

11-22-2015 10:02:49

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Hi Folks,
I a have a 1971 Ford 4500 3 cyl. diesel tractor with a Type K 6/4 manual reversing transmission (no PTO). I am in the process of replacing the clutch disc, pressure plate and input shaft seal.
I noticed that the transmission input shaft has a 1/8" - 3/16" movement (wiggle) from side to side as it comes out of the transmission. Is this expected? I assume that once the engine is reinstalled the tip of the input shaft will be riding in the bearing or bushing in the tail end of the crankshaft and won't be a concern. Is that correct?



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Ray T.

11-23-2015 08:08:06

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 Re: Ford 4500 6/4 Transmission in reply to Ray T., 11-22-2015 10:02:49  
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Excellent; Thanks Ultradog

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Ultradog MN

11-22-2015 19:07:06

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 Re: Ford 4500 6/4 Transmission in reply to Ray T., 11-22-2015 10:02:49  
Yes, there is quite a bit of side play on an unsupported input shaft. 3/16" or even more is not abnormal.
And no it will not be a problem once the front end of the shaft is inserted into the pilot bearing.
While you are in there I would replace the frost plugs in the back end of the block and one in the back of the head.
I have seen them rust through on three different tractors now - one just after it was put back into service with a new clutch.

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