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Oliver, Cletrac, Co-op & Cockshutt Tractors Discussion Forum

1800 Diesel woes

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Author  [Modern View]

05-13-2019 05:41:30

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1800 Series B Diesel

I was driving the tractor on Friday. No load about 1500 rpm. It was running very good. All of a sudden, it cough, gray smoke (not steady) puffs, sputtered, then gray smoke ( smells like unburned wet diesel)...started running rough and black liquid oozing out of #2 cylinder exhaust port.

We spent a fortune on this last fall. Head was cracked we had it repaired. New valves. New injector tips.


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05-30-2019 08:06:09

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 Re: 1800 Diesel woes in reply to agonair, 05-13-2019 05:41:30  
Tractor fixed...a broken rocker arm. Runs like a top now. Thanks for all of your efforts.

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J. Schwiebert

05-13-2019 08:38:23

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 Re: 1800 Diesel woes in reply to agonair, 05-13-2019 05:41:30  
Take the exhaust manifold off and verify that it is #2 cylinder where the unburned fuel is coming from. Remove the injector and do one of 2 things. swap it with one from another cylinder. Does the unburned fuel stay with the injector or the cylinder? If you have quick access to a nozzle tester check it. If the injector tests good then you have a problem with the cylinder. If that is the problem hinge the tank and remove the valve cover and start checking. Questions. Send me an e-mail, Could be as simple as valve adjustment or a push rod that jumped out of place. J.

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05-13-2019 05:58:44

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 Re: 1800 Diesel woes in reply to agonair, 05-13-2019 05:41:30  
How's the blow by? Hole in a piston would kick out enough smoke from the blow by tube to eliminate all the mosquitoes within a mile. If it had a hole,it wouldn't be making compression to burn the fuel.

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05-13-2019 06:53:24

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 Re: 1800 Diesel woes in reply to rrlund, 05-13-2019 05:58:44  
Blow by...NONE.

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05-13-2019 07:40:39

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 Re: 1800 Diesel woes in reply to agonair, 05-13-2019 06:53:24  
A valve would prevent combustion and cause unburned fuel too wouldn't it? There wouldn't be any blow by with that. Other than that,an injector tip would be my only other idea.

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