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Allis B hydraulic pump leak

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ac55tractor View Drop Down
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Joined: 20 Oct 2012
Location: Raymond, Maine
Points: 240
Post Options Post Options   Thanks (0) Thanks(0)   Quote ac55tractor Quote  Post ReplyReply Direct Link To This Post Topic: Allis B hydraulic pump leak
    Posted: 26 Oct 2020 at 12:58pm
Hi All
On my 1955 Allis B's hydraulic pump there are three hex bolts on the top of the pump. There is oil seeping out of one or more of them. I am not sure if trying to tightening them will do any damage or throw off any adjustment. I did not want to open a can of worms, by messing with something that I am not 100% clear about. 
Thanks
Steve
Raymond, Maine
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TMiller/NC View Drop Down
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Joined: 11 Sep 2009
Location: Lenoir, NC
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Post Options Post Options   Thanks (0) Thanks(0)   Quote TMiller/NC Quote  Post ReplyReply Direct Link To This Post Posted: 26 Oct 2020 at 3:05pm
The 2 near the where the pump mounts are 9/16" X 18 thd, and seal with the copper gasket.  These are over the discharge valves.  The 3rd near the control is 1/4" npt it is over the relief valve.  Use a wrap of teflon tape on these threads careful to not get any over the end of plug.  Do not over tighten the pipe plug.  No problem to remove any of these with the engine off and lift down.  Tim
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ac55tractor View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ac55tractor Quote  Post ReplyReply Direct Link To This Post Posted: 26 Oct 2020 at 3:48pm
Tim,
Thank you for the response. My guess is that the 1/4" plug is for an additional hydraulic cylinder. Do you know if was there some sort of an attachment for those 9/16" X 18  NF threads? I have had my tractor for almost 30 years. I am still learning about it.
Steve
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steve(ill) View Drop Down
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Location: illinois
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Post Options Post Options   Thanks (0) Thanks(0)   Quote steve(ill) Quote  Post ReplyReply Direct Link To This Post Posted: 26 Oct 2020 at 3:56pm
The two with BOLT HEADS ( item 5) have a copper washer under them item 31) .. As TIM said.... You can get new washers at NAPA... or you can heat them up with a propane torch, let them cool and they should be soft to use again... the other one is a pipe plug-- thread tape.





Edited by steve(ill) - 26 Oct 2020 at 3:56pm
Like them all, but love the "B"s.
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