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Re: '65 4020 Powershift leaking at bell housing

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Author  [Modern View]

10-25-2013 15:14:34

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Normally the input shaft seal is the source. Oil can leak from above and enter between the block and Bell housing. Oil can cause the dampener disk. To slip.

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10-25-2013 17:27:00

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 Re: '65 4020 Powershift leaking at bell housing in reply to D-, 10-25-2013 15:14:34  
If the input seals have been replaced on both splits, what is causing, or could cause them to fail? Tractor has been run less than 20 hours since the last split?

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Tim S

10-25-2013 16:06:12

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 Re: '65 4020 Powershift leaking at bell housing in reply to D-, 10-25-2013 15:14:34  
Yes it should be dealt with soon, unfortunately you need to pull the C1 and C2 and the PTO clutch apart to get to the seal,, not a bad job ...

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10-25-2013 17:30:13

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 Re: '65 4020 Powershift leaking at bell housing in reply to Tim S, 10-25-2013 16:06:12  
Tim, are you in agreement that it is the front transmission input seals? Any idea on what could be causing them to fail after less than 20 hours?

Wouldn't pulling the pto clutch pack require 2 splits or is that just to get back to the PTO brake? I thought C1, C2, C3 were all one unit?


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Cliff Nelson

10-25-2013 21:35:56

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 Re: '65 4020 Powershift leaking at bell housing in reply to dweitzel, 10-25-2013 17:30:13  
C1, C2 and PTO clutches are one unit in the front split. Pto brake is at the second split. There is a bearing in the clutch manifold that supports the input shaft. Make sure the bearing is good and also not loose in the manifold or on the shaft. Make sure the shaft is not damaged at the seal area.

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