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Glen S.C. 
Bronze Level
Joined: 18 Sep 2009
Location: Irmo S.C.
Points: 35
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 Topic: 7000 valves
Posted: 24 Apr 2024 at 9:33pm |
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Does the 301s have a problem with the valves breaking the lips on the edge off? When I bought this tractor 2 cylinders had broken valves. Rebuilt the engine , new sleeves pistons , had the head done , new valves in those holes. Around 150 hrs had a valve go bad. Shop put the intake and exhaust in the wrong holes, had that fixed. Saturday night started skipping . Pulled head today #5 intake half of the lip gone #4 intake cracked . Not sure the hrs since last repair. Going to have all new valves put in this time. Tiered of doing this. THanks for any input.
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DrAllis
Orange Level Access
Joined: 12 Sep 2009
Points: 19547
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Posted: 24 Apr 2024 at 9:38pm |
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No problems.
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WF owner
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Joined: 12 May 2013
Location: Bombay NY
Points: 4402
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Posted: 25 Apr 2024 at 5:40am |
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Are your injectors bad? Bad injectors can cause combustion chamber problems.
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victoryallis
Orange Level
Joined: 15 Apr 2010
Location: Ludington mi
Points: 2857
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Posted: 25 Apr 2024 at 9:02am |
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Our 7000 lost one once. I don’t remember it doing the damage loosing one on the 8050 did. At one point it was worked fairly hard so somewhat understandable.
Edited by victoryallis - 25 Apr 2024 at 9:03am
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8030 and 8050MFWD, 7580, 3 6080's, 160, 7060, 175, heirloom D17, Deere 8760
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injpumpEd
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Joined: 13 Sep 2009
Location: Walnut IL
Points: 4773
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Posted: 25 Apr 2024 at 11:49am |
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as mentioned above, injectors faulty or installed wrong if Ambac or Bosch injectors, or inj pump timing can be off a long way. It's usually a poor state of tune that causes failures like this.
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210 "too hot to farm" puller, part of the "insane pumpkin posse". Owner of Guenther Heritage Diesel, specializing in fuel injection systems on heritage era tractors. stock rebuilds to all out pullers!
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Glen S.C.
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Joined: 18 Sep 2009
Location: Irmo S.C.
Points: 35
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Posted: 26 Apr 2024 at 7:14pm |
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Thanks for the info . Will check all of that. Doesn't smoke. Did have some turbo trouble a while back but put a new one on .
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Lynn Marshall
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Joined: 13 Sep 2009
Location: Dana, Iowa
Points: 2151
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Posted: 26 Apr 2024 at 7:28pm |
  They're not all impervious.
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Glen S.C.
Bronze Level
Joined: 18 Sep 2009
Location: Irmo S.C.
Points: 35
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Posted: 27 Apr 2024 at 7:48pm |
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That's pretty bad
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