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Farmall & IHC Tractors Discussion Forum
Show Parts for Model:

464 diesel oil or fuel in exhaust manifold when idling

Author  [Modern View]
Blaine M.

02-02-2013 06:07:58
76.100.138.224



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when you let it run with no load on it starts leaking oil or raw fuel out of exhaust wondering if it is fuel or oil has 3200 hrs on it. Thanks for any help




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jimb2

02-02-2013 10:51:57
99.241.76.141



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 Re: 464 diesel oil or fuel in exhaust manifold when idling in reply to Blaine M., 02-02-2013 06:07:58  
Hi Blaine, a D-179 at 3200 Hrs has hardly been broken in yet. My brother has one in 454 with well over 15,000 Hrs still starting and running great. No oil consumption. As others have said slobbering in cold weather.
A couple little things that may help:
1) A cover over the front of rad to bring temp up.
2) The only difference between 454 and 464 is the fuel screw is turned out on the injection pump to give 464, 45 HP vs 454 40 HP. So when the tractor is idling around in the cold weather you can lean the fuel mixture down a bit by not pulling the STOP/START/RUN lever all the way to the top. Try leaving it down a 1/4 inch or so. If you require the full power then pull it all the way up to RUN.

Hope this helps
JimB

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pete 23

02-02-2013 09:03:57
74.32.229.189



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 Re: 464 diesel oil or fuel in exhaust manifold when idling in reply to Blaine M., 02-02-2013 06:07:58  
We used to convice customers to burn a lighter fuel in cold weather and that made a tremendous difference, like 826 running with loader and blower in the winter. Between jobs, idling, slobbering mess. Lot of difference in cetane numbers on diesel fuels just like octane on gasoline engines. Certain additives will help also. One more thing, the latest higher compression pistons really help get rid of slobber also. They are optional repair parts on older models so you can still get original or higher comp.

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Fritz Maurer

02-02-2013 07:30:13
216.137.138.146



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 Re: 464 diesel oil or fuel in exhaust manifold when idling in reply to Blaine M., 02-02-2013 06:07:58  
If it was slobbering that much fuel, I wouldn't think it would run very well at high idle without smoke or misfire. Had the same problem with a Ford 4000. It was motor oil out the exhaust valve guides. Just snapped on some umbrellas for a '77 351M and it was cured. You can do it without taking the head off.



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Cvrush

02-02-2013 07:21:53
109.157.160.9



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 Re: 464 diesel oil or fuel in exhaust manifold when idling in reply to Blaine M., 02-02-2013 06:07:58  
I presume you are talking about the D179 diesel engine ??

When started and running cold the carbon in the exhaust combines with water from condensation and produces an oily looking black discharge, known as "slobber" this clears when the engine reaches working temp.

If the discharge continues when hot it is more likely to be leaking valve stem seals, and typically there will be black oily smuts on the bonnet & cab if fitted ??

Valve stem seals can be replaced without a strip of the head !!

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Allan In NE

02-02-2013 06:17:17
148.66.88.254



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 Re: 464 diesel oil or fuel in exhaust manifold when idling in reply to Blaine M., 02-02-2013 06:07:58  
Normal,

Diesels don't like to loaf around doing light loads.

Allan



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