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1800 Diesel woes


 
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agonair
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Joined: 18 Jul 2010
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PostPosted: Mon May 13, 2019 4:41 am    Post subject: 1800 Diesel woes Reply to specific post Reply with quote

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.

Thoughts?
 
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rrlund
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PostPosted: Mon May 13, 2019 4:58 am    Post subject: Re: 1800 Diesel woes Reply to specific post Reply with quote

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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agonair
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PostPosted: Mon May 13, 2019 5:53 am    Post subject: Re: 1800 Diesel woes Reply to specific post Reply with quote

Blow by...NONE.
 
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rrlund
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PostPosted: Mon May 13, 2019 6:40 am    Post subject: Re: 1800 Diesel woes Reply to specific post Reply with quote

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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J. Schwiebert
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PostPosted: Mon May 13, 2019 7:38 am    Post subject: Re: 1800 Diesel woes Reply to specific post Reply with quote

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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agonair
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PostPosted: Thu May 30, 2019 7:06 am    Post subject: Re: 1800 Diesel woes Reply to specific post Reply with quote

Tractor fixed...a broken rocker arm.
Runs like a top now.
Thanks for all of your efforts.
 
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