This site is not affiliated with AGCO Inc., Duluth GA., Allis-Chalmers Co., Milwaukee, WI., or any surviving or related corporate entity. All trademarks remain the property of their respective owners. All information presented herein should be considered the result of an un-moderated public forum with no responsibility for its accuracy or usability assumed by the users and sponsors of this site or any corporate entity.
The Forum Parts and Services Unofficial Allis Store Tractor Shows Serial Numbers History
Forum Home Forum Home > Allis Chalmers > Farm Equipment
  New Posts New Posts
  FAQ FAQ  Forum Search   Events   Register Register  Login Login


Allis C oil pump gasket
 Post Reply Post Reply
Author
Message
  Topic Search Topic Search  Topic Options Topic Options
3rd generation View Drop Down
Bronze Level
Bronze Level


Joined: 09 Oct 2025
Location: Iowa
Points: 11 		Post Options Post Options   Thanks (0) Thanks(0)   Quote 3rd generation Quote  Post ReplyReply Direct Link To This Post Topic: Allis C oil pump gasket
    Posted: 3 hours 30 minutes ago at 2:26pm
The gasket thickness provided in rebuild kit is .007” book says .001-.003” end play. Book says to lap body to reduce clearance. With out a gasket I have .003”
Thoughts on using .002 thick paper and coat with copper coat after lapping .002” off.
Back to Top
Sponsored Links


Back to Top
steve(ill) View Drop Down
Orange Level Access
Orange Level Access
Avatar

Joined: 11 Sep 2009
Location: illinois
Points: 88818 		Post Options Post Options   Thanks (0) Thanks(0)   Quote steve(ill) Quote  Post ReplyReply Direct Link To This Post Posted: 2 hours 8 minutes ago at 3:48pm
yes, you can use a piece of paper to make a gasket.. Dont use any sealer... little oil film will seal it.. The tighter the better.. If you can  get a couple thousandths off the housing, that would help.

These engines dont have but 15 psi of pressure when running... Can be less at idle, especially if you have excess clearance.. Spending some time to get the pump right is a good long term investment.


Edited by steve(ill) - 2 hours 5 minutes ago at 3:51pm
Like them all, but love the "B"s.
Back to Top
3rd generation View Drop Down
Bronze Level
Bronze Level


Joined: 09 Oct 2025
Location: Iowa
Points: 11 		Post Options Post Options   Thanks (0) Thanks(0)   Quote 3rd generation Quote  Post ReplyReply Direct Link To This Post Posted: 2 hours 2 minutes ago at 3:54pm
Ok good to know. As I lapped the body I’m noticing the factory didn’t get the pump shaft perpendicular to the sealing surface.
Steiner has .004” gaskets also. I’ll hold off on any more lapping until I try a thinner gasket.
Back to Top
steve(ill) View Drop Down
Orange Level Access
Orange Level Access
Avatar

Joined: 11 Sep 2009
Location: illinois
Points: 88818 		Post Options Post Options   Thanks (0) Thanks(0)   Quote steve(ill) Quote  Post ReplyReply Direct Link To This Post Posted: 1 hour 54 minutes ago at 4:02pm
Gaskets can also take a CRUNCH when you tighten them... Best way is to make a good guess, then install and TIGHTEN.. then see if the pump turns free and possibly measure end shake.
Like them all, but love the "B"s.
Back to Top
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 11.10
Copyright ©2001-2017 Web Wiz Ltd.

This page was generated in 0.074 seconds.


Help Support the
Unofficial Allis Forum