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Re: Pitting in o-ring groove in JD 6-404 engine block - Opti

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Author  [Modern View]

04-04-2014 16:25:51

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Here are a couple other shots showing the pits in the o-ring grooves (counter-bore?). I also included shots of a few liners. After further inspection, we now see 3 out of 6 holes have some pitting. 1 out of the 3 is not only slightly pitted, but chipped through as well.






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04-04-2014 18:43:07

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 Re: Pitting in o-ring groove in JD 6-404 engine block - Opti in reply to RedBarnNate, 04-04-2014 16:25:51  
When I worked for a Deere dealer when we came across this on a rebuild we wire wheeled it clean used JB weld and sand it down with emery cloth to repair the pitting it takes some time saved many a block this way

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04-04-2014 18:49:58

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 Re: Pitting in o-ring groove in JD 6-404 engine block - Opti in reply to Tallpaulw, 04-04-2014 18:43:07  
Quoting Removed, click Modern View to see

Same with the old Olivers and Allis Chalmers in the shop I used to work at.

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04-04-2014 18:47:48

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 Re: Pitting in o-ring groove in JD 6-404 engine block - Opti in reply to Tallpaulw, 04-04-2014 18:43:07  
I have fixed a few that way to. Seems more of a problem on 202,219 and 239's.The 329 in 2840's and 4030's were bads well.

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