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Rogers 
Orange Level Access
Joined: 16 Sep 2009
Location: Georgia
Points: 2176
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 Topic: Rebuilt Engines
Posted: 04 Feb 2019 at 5:22pm |
I am looking at starting back on an old tractor that has been sitting at my shop several years. It is a 185 that needs an engine rebuild. Back several years ago I thought it would be about a cheap to buy an already built short block as to rebuild the engine myself. Well not exactly but worth the difference in cost for the ease of the project. It looks like that is not true anymore unless someone can give me a good engine resource. Any comments would be appreciated. I may just build it myself. I've build several smaller engines for lower horsepower D-series tractors , but they were all gas burners.
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Think for yourself and be your own expert. Be willing to change your mind; however, willingness to change your mind doesn’t mean that you will. Blindly following any path is the pinnacle of insanity.
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DSeries4
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Joined: 12 Sep 2009
Location: Ontario, Canada
Points: 7506
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Posted: 04 Feb 2019 at 8:52pm |
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Make sure you have an Allis service manual for the 185, not I&T. They are quite a bit different than the gassers. See if there any retired mechanics in your area that want a project to work on. The guy I get to rebuild my engines is more than reasonable, he likes having things to work on.
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'49 G, '54 WD45, '55 CA, '56 WD45D, '57 WD45, '58 D14, '59 D14, '60 D14, '63 D15D, '66 D15II, '66 D21II, '67 D17IV, '67 D17IVD, '67 190XTD, '73 620, '76 185, '77 175, '84 8030, '85 6080
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Lonn
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Joined: 16 Sep 2009
Location: Назарово,Russia
Points: 29817
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Posted: 05 Feb 2019 at 6:11am |
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Proper valve and seat grinding is very important in a diesel. The valves have to standout the same height across the head and to a certain spec. Sleeve standout is important too so you won't blow a head gasket.
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Rogers
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Joined: 16 Sep 2009
Location: Georgia
Points: 2176
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Posted: 06 Feb 2019 at 11:49am |
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My dad and uncle ran an AC dealership in the 60's, so I have real AC shop manuals.
My dad use to say a diesel was a harder build. I bought the 185 before he passed. We were going to rebuild it together. Now he'll just be smiling down.
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Think for yourself and be your own expert. Be willing to change your mind; however, willingness to change your mind doesn’t mean that you will. Blindly following any path is the pinnacle of insanity.
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CrestonM
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Joined: 08 Sep 2014
Location: Oklahoma
Points: 8455
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Posted: 06 Feb 2019 at 11:56am |
 Rogers wrote:
My dad use to say a diesel was a harder build. |
My grandpa overhauled a diesel once, and it was the only one he ever did. He rebuilt countless gasoline engines, but he did say the diesel was challenging. Ran good when he finally finished, though.
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DMiller
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Joined: 14 Sep 2009
Location: Hermann, Mo
Points: 34060
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Posted: 06 Feb 2019 at 11:56am |
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Liner protrusion HAS to be equal across the deck on these with a single head, There are nuances to any engine where these are pretty sensitive.
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HudCo
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Joined: 29 Jan 2013
Location: Plymouth Utah
Points: 3917
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Posted: 06 Feb 2019 at 3:53pm |
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could you even find a short block for that nowadays ?
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steve(ill)
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Joined: 11 Sep 2009
Location: illinois
Points: 88013
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Posted: 06 Feb 2019 at 3:58pm |
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Im with DSeriers4 ............. look around for a local guy or shop that does diesels and rebuild yours.
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Like them all, but love the "B"s.
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