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What seals to replace on 300

Farmall H, HV & Super H, 300 & 350, 1939-1958
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ShawnAgne
5+ Years
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Joined: Sat May 07, 2016 5:13 pm
Zip Code: 45380
Tractors Owned: 1952 Cub w/ 184 motor (Kid)
12V with Petronix
IH 3160 Mower Deck
54 Leveling Blade
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IH528 Trailer
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1955 Farmall 300 (Clarence)
12V with Petronix
Woods L306 72"
1955 Farmall 100 (Thomas)
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Woods L59 60"
A60 Leveling Blade
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Location: Versailles, Ohio

What seals to replace on 300

Postby ShawnAgne » Tue Jan 16, 2018 10:09 am

When I got the 300 it went into service right away as a mower cause the Cub was down. Since the Cub is up and running again I'll have some time to go in and do some stuff. What seals should I replace? Do notice oil dripping off the motor more so on the left side. Could this be to the fact that I added 15x40 Diesel oil thus I loosened up some crud? Also I have puddles towards the back of the engine compartment, not exactly sure what it is, however this just showed up during the winter so may be due to that. Still works fine just getting preventative stuff lined up.

Suggestions?
Shawn Agne

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John *.?-!.* cub owner
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Re: What seals to replace on 300

Postby John *.?-!.* cub owner » Tue Jan 16, 2018 12:37 pm

Have not had any dealings with a 350, but quite a few with N H. If the oil leak on the left side is toward the front, look the governor housing over good, as well as the front engine cover. As to the ones toward the rear of the engine compartment, could be rear main seal, or of further back toward transmission could be input seal. There is a pocket above that seal that catches oil and drains it down to the bearing, if that is the problem it will leak for a while after shutdown.
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