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8070 with 426 Engine problems |
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dmpool
Bronze Level Joined: 31 Aug 2011 Location: Westfield, ND Points: 1 |
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Posted: 01 Sep 2011 at 9:18am |
This is my first time using this site, but I have enjoyed all of the info being shared. I recently purchased an 8070 FWA, and now it appears the head is cracked as there is coolant coming out around the #3 injector. Any insight on the diagnosis, or possible cause? THe engine was supposed to have been completely gone through last fall. Thanks!!
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DrAllis
Orange Level Access Joined: 12 Sep 2009 Points: 19504 |
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Bad or weak casting......things like that happen sometimes...life goes on anyway.
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Eric[IL]
Orange Level Joined: 14 Sep 2009 Location: Illinois Points: 485 |
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My 7060's 426 has a 5" weld near the top of the block, just under the head gasket area on the right side near the back of the engine. Who ever welded it did a good job cause its been that way for years and never leaks. Gibson City, IL AGCO dealer has (or had) a reconditioned 8070 fwa with a cummins 8.3 swapped in place of the 426. I viewed it about 3 weeks ago. The fit was excellent. Perhaps that could be a solution if you can't get your 426s head replaced or fixed.
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Brian Jasper co. Ia
Orange Level Joined: 11 Sep 2009 Location: Prairie City Ia Points: 10508 |
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There isn't a sleeve or cup around the injector with coolant around it on that engine? I thought I read where someone else had coolant leaks around the injector and it was a sleeve leaking.
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"Any man who thinks he can be happy and prosperous by letting the government take care of him better take a closer look at the American Indian." Henry Ford
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ac45
Orange Level Joined: 14 Sep 2009 Points: 395 |
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Head swap is not a real big deal.
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allisrutledge
Orange Level Joined: 30 Mar 2010 Location: SurgoinsvilleTN Points: 1352 |
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There are copper sleeves under the injectors on the 301 but I can't say on the 426.If the injectors are tight you should have the head checked. Scott
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Allis Chalmers still exist in my mind and barns
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allisrutledge
Orange Level Joined: 30 Mar 2010 Location: SurgoinsvilleTN Points: 1352 |
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Welcome to the site.
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Allis Chalmers still exist in my mind and barns
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Hurst
Orange Level Joined: 11 Sep 2009 Location: Midway, Ky Points: 1201 |
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99% sure the 426 has just copper washers, not sleeves. I had a 301 that began acting like a blown head gasket and it turned out to be a bad injector sleeve letting in coolant. I remember someone saying that the 301 and 200 were the only ag engines allis used the sleeves on. Hurst |
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1979 Allis Chalmers 7000
5800 Hours |
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injpumpEd
Orange Level Access Joined: 13 Sep 2009 Location: Walnut IL Points: 4767 |
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correct. no copper sleeves for injectors on any 426. 2900 mark II engines got the new design cylinder head for improved coolant circulation, which included the injector tubes as well. A good 426 head should not be too hard to find. Heck, there's probably three laying around here. Too far away to do you any good! Ed.
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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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