AC Model B cast oil pans

gus grant · Jun 5, 2008

Greeting from New Zealand

I have removed the pans from the bottom of the case behind the rear wheels as they were rusty and in need of treatment. I intend to refit them with new gaskets and bolts but I cannot find any reference to what grade of oil I need.Can someone please advise and is there anthing that I have to be aware of when I refit the pans.
I would appreciate your help on this.
Cheers
Gus

Texas Denny · Jun 5, 2008

90W high pressure gear oil or better.

gus grant · Jun 5, 2008

Thanks Danny for your quick reply. I hope to refit them this weekend.
Thanks again
Gus

steve(ill) · Jun 5, 2008

i reinstall the pans with a good bead of RTV sealer, and no gasket. as Denny said, 80 w90 gear lube is the stuff.

gus grant · Jun 5, 2008

Thanks Steve.
I was going to do both, a new gasket with a smear of rtv on both sides of the gasket. But I will take your advice.

Mant thanks

Gus

TexMac · Jun 5, 2008

FWIW - an old time retired Allis mechanic told me to use the thick gaskets from AGCO to ensure that the pans would clear the gears if they got a little dent. Said the gears were pretty close and would wear a hole through the pans before you noticed. I did RTV my cork gaskets when I replaced them and so far no problems.

gus grant · Jun 6, 2008

Thanks Tex
Sounds like a good tip and as I have the cork gaskets already cut, I think I will go along with your suggestion and see what happens.
A big thank you to you guys that have helped me out. N.Z. is a long way from U.S.A. and it can be a bit lonely out here when it comes to A.C. tractors. There is no A.C. agents and most of the people I speak to have never heard of the make.
I am very impressed by the way the forum works and with the replies received.

Once again many thanks

Gus

AC Model B cast oil pans

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