Construction and other equipment - HD6G-diesel in crankcase oil

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HD6G-diesel in crankcase oil

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Construction and other equipment
Forum Description: everything else with orange (or yellow) paint
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=191550
Printed Date: 27 Nov 2024 at 2:48pm
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Topic: HD6G-diesel in crankcase oil

Posted By: Dale
Subject: HD6G-diesel in crankcase oil
Date Posted: 30 Oct 2022 at 7:38am

Have a really clean HD6G (Buda diesel 50's vintage) Have had it in covered storage forever. Of course, have hardly used it.

Went to start it and on pre-start fluids check found oil way high and thin. Dropped some oil from pan and no coolant. Oil smells like diesel.

Question-What is likely the problem? Any thoughts appreciated. Any ideas on fixes would be appreciated as well.

Thanks

Replies:

Posted By: doctorcorey
Date Posted: 30 Oct 2022 at 9:37am

Dale wrote:

Have a really clean HD6G (Buda diesel 50's vintage) Have had it in covered storage forever. Of course, have hardly used it.

Went to start it and on pre-start fluids check found oil way high and thin. Dropped some oil from pan and no coolant. Oil smells like diesel.

Question-What is likely the problem? Any thoughts appreciated. Any ideas on fixes would be appreciated as well.

Thanks

As many have stated, on mine, it was the seal on the transfer pump. If it leaks, it passes directly into the engine oil line that feeds/exits the injector pump. It's a easy fix. Mine had so much diesel in the oil that I believe I could have poured it back into the fuel tank after I drained it.

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Semper Fi USMC 1958 HD6G, 1959 MF 203 loader, 1960 Case 420B Backhoe, MF 65 Tractor/Loader Diesel

Posted By: doctorcorey
Date Posted: 30 Oct 2022 at 9:40am

SKF 4231 is the seal number. You don't have to open the pump up, just remove it and remove the driven gear.

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Semper Fi USMC 1958 HD6G, 1959 MF 203 loader, 1960 Case 420B Backhoe, MF 65 Tractor/Loader Diesel

Posted By: HD6 Merv
Date Posted: 30 Oct 2022 at 12:15pm

yes exactly what Dr Corey said. And correct seal number

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tits tyres and tracks

they all cost you money

Posted By: Dale
Date Posted: 30 Oct 2022 at 4:49pm

Thanks for the advice. Always appreciated.