8070 white smoke
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=197653
Printed Date: 25 Sep 2024 at 1:33am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: 8070 white smoke
Posted By: HagerAC
Subject: 8070 white smoke
Date Posted: 10 Oct 2023 at 7:55pm
So I bought an 84 8070 to replace my burnt one about a year ago. Been good but recently it's seemed to have some white smoke when going downhill pulling wagons and maybe a little more white smoke than normal at cold startup. I did notice yesterday the temp gauge was barely off the bottom of the gauge while hauling loads. Oil level is good, antifreeze level is good. Is it just from being not up to operating temp and loading up with raw fuel or do I have an injector issue. Gonna put new thermostats in it tomorrow.
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30+ A-Cs ranging from a 1928 20-35, to a 1984 8070FWA, Gleaner R52
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Replies:
Posted By: DrAllis
Date Posted: 10 Oct 2023 at 8:05pm
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Injectors in backwards ??? return line goes up against the valve cover, not away from the valve cover.
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Posted By: HagerAC
Date Posted: 10 Oct 2023 at 8:53pm
Nope they're in right, I do know the story of how that can easily happen.
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30+ A-Cs ranging from a 1928 20-35, to a 1984 8070FWA, Gleaner R52
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Posted By: HagerAC
Date Posted: 10 Oct 2023 at 8:56pm
Runs and pulls good otherwise, just thought maybe an injector not closing all the way or something.
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30+ A-Cs ranging from a 1928 20-35, to a 1984 8070FWA, Gleaner R52
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Posted By: AC7060IL
Date Posted: 11 Oct 2023 at 5:14am
Clogged fuel filter?
Clogged fuel tank fuel line?
It might be a beginning of some sort of fuel starvation??
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Posted By: injpumpEd
Date Posted: 11 Oct 2023 at 7:58am
white smoke typically indicates cold combustion, or late injection timing. So knowing the coolant is not up to temp is a place to start, then a recheck of the timing is next, make sure it's at 19* BTDC. The nozzles could be in need of servicing, as they tend to kinda piss when they get tired, which can also lead to excess smoke under light loads. It'll run fine with a load because the fuel is getting in the cylinder, just isn't atomizing correctly so it shows up under those light to no load situations.
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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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Posted By: HagerAC
Date Posted: 11 Oct 2023 at 8:33am
The more I think about it, I'm leaning towards fuel restriction, as in fuel filter so I'm gonna put them on as well. But it definitely needs the thermostats as well
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30+ A-Cs ranging from a 1928 20-35, to a 1984 8070FWA, Gleaner R52
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