Shops, Barns, Varmints, and Trucks - FORD 4600 diesel injection pump

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FORD 4600 diesel injection pump

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Forum Name: Shops, Barns, Varmints, and Trucks
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URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=161830
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Topic: FORD 4600 diesel injection pump

Posted By: steve(ill)
Subject: FORD 4600 diesel injection pump
Date Posted: 11 Jun 2019 at 1:10pm

I bought a FORD 4600 2 wheel drive tractor with a 3.3 diesel motor for the son to use cutting grass at the farm. I "think" the oil levels were all OK are relatively new to start with. I went over today after he has run 10 hours to do a little mower work.. I pulled the motor dip stick and it was 2 quarts over full. I checked the radiator and the transmission and both are OK.. Steering was about 6 oz low... My first guess is fuel dilution, but I don't "smell" diesel in the oil.. Going to do a little more checking, but wondering about additional things to check.. Looked on You Tube and they talk about overhauling the pump with new O-rings as a "not to bad job".......... saw another post somewhere that said " look at return line inside the valve cover".... and "leaking injectors".........

Im not sure it is diesel and not sure about the original oil level, but if I DID gain 2 quarts over a period of 10 hours, that don't seem like a leaking injector... Any experience on where to look first ? Most COMMON problem ?

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Like them all, but love the "B"s.

Replies:

Posted By: JoeM(GA)
Date Posted: 11 Jun 2019 at 1:16pm

Sounds more like your shaft seal on the power steering pump is leaking since the PS is low

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Allis Express North Georgia
41 WC,48 UC Cane,7-G's,
Ford 345C TLB

Posted By: steve(ill)
Date Posted: 11 Jun 2019 at 1:28pm

well , that is surely a possibility joe... but I drained 2 quarts out of the motor sump, and added 6 oz to the steering....... but I cant verify ORIGINAL levels so I will keep that in mind and MONITOR... just looking for good ideas on checks , if I missed something.

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Like them all, but love the "B"s.

Posted By: JoeM(GA)
Date Posted: 11 Jun 2019 at 2:14pm

agreed. I was reading on my phone, didn't catch the 2 qts in 10, It is definitely of the age the the pump seal could have failed

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Allis Express North Georgia
41 WC,48 UC Cane,7-G's,
Ford 345C TLB

Posted By: injpumpEd
Date Posted: 11 Jun 2019 at 5:18pm

The DPA pumps do have shaft seal failure on occasion, and it puts fuel in the oil.

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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!