Tranny Flush Question

Farmall H, HV & Super H, 300 & 350, 1939-1958
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Tranny Flush Question

Postby Stanton » Thu Nov 14, 2013 7:46 am

This applies to my H, but could be relevant to any Cub.

We often read/hear to drain out the old tranny case then flush with kerosene. Would old gasoline be a suitable substitute for kerosene? Other than the service manual's direction, is there any reason not to use old gas?

Reason for question: I have plenty of old gas on hand and very little kerosene left.

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Gary Dotson
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Re: Tranny Flush Question

Postby Gary Dotson » Thu Nov 14, 2013 8:02 am

I think that safety would be my biggest concern. I also think that gasoline would be much more harmful to oil seals. I know kerosene has gotten pretty expensive, maybe diesel fuel would be a bit less expensive.

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Dusti Snider
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Re: Tranny Flush Question

Postby Dusti Snider » Thu Nov 14, 2013 8:12 am

Off road diesel would be my choice. My F-12 transmission and steering gear has been full now for almost two weeks.

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Re: Tranny Flush Question

Postby KETCHAM » Sun Dec 15, 2013 10:14 am

Thats a lot of fluid to change also....I did mine years ago...I stays inside for the most part...The old fluid looked pretty good also..Can't remember how much....15 gallons??? I know it was a lot...bought a 30 gallon drum of gear oil...Kevin :shock: :shock: :shock: :shock: :shock:
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John *.?-!.* cub owner
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Re: Tranny Flush Question

Postby John *.?-!.* cub owner » Sun Dec 15, 2013 11:03 am

H transmission capacity is 24 quarts (6 gallons). they will hold more, but that is what they are supposed to have in them.
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