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7020 still knocking
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BillinAlberta View Drop Down
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Joined: 12 Sep 2009
Location: Saskatchewan
Points: 358 		Post Options Post Options   Thanks (0) Thanks(0)   Quote BillinAlberta Quote  Post ReplyReply Direct Link To This Post Topic: 7020 still knocking
    Posted: 24 Jul 2023 at 1:45pm
  Well I replaced the injectors and still have the knock.
Looks like a costly repair bill coming.Something is unhappy.
   Just for the hell of it would a gas engine from a G combine 
bolt in without too much work?I have one sitting in the shed 
that runs fine.
    The tractor is only going to be used a few hours a year for light (10
foot disc and cultivator in sandy soil) tillage ,bushcutting ,and baling.Yes 
I know the fuel consumption will be awful.Yes there will be less horsepower but hopefully it would be enough.
    A diesel expert will be here tomorrow to diagnose the problem.If the repair is affordable
I will get the engine fixed , that is my first choice.
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Lars(wi) View Drop Down
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Joined: 14 Sep 2009
Location: Permian Basin
Points: 8166 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Lars(wi) Quote  Post ReplyReply Direct Link To This Post Posted: 24 Jul 2023 at 2:01pm
In my humble opinion, if the engine is toast, you’d be better off getting a different tractor, if you choose not to fix the engine you have.
I tried to follow the science, but it was not there. I then followed the money, and that’s where I found the science.
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8070nc View Drop Down
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Joined: 21 Mar 2019
Location: North Carolina
Points: 649 		Post Options Post Options   Thanks (0) Thanks(0)   Quote 8070nc Quote  Post ReplyReply Direct Link To This Post Posted: 24 Jul 2023 at 2:46pm
Before I started tearing into it id check the torsional damper on the front of the crank. Ive got a 8070 thatvI would have sworn had a rod knock
Pulled the pan checked the bearings looked brand new. After a lot of questions on the forum we decided it must be the damper
That was it
1984 80780
1957 D14
DES 300 with 25000 engine
616 tractor
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injpumpEd View Drop Down
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Joined: 13 Sep 2009
Location: Walnut IL
Points: 5130 		Post Options Post Options   Thanks (0) Thanks(0)   Quote injpumpEd Quote  Post ReplyReply Direct Link To This Post Posted: 24 Jul 2023 at 2:54pm
A gas 7020 would be interesting to see lol! 
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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