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175 diesel HELP !
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smokey View Drop Down
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Joined: 04 Oct 2010
Location: Michigan
Points: 287 		Post Options Post Options   Thanks (0) Thanks(0)   Quote smokey Quote  Post ReplyReply Direct Link To This Post Topic: 175 diesel HELP !
    Posted: 02 Jan 2012 at 5:50pm
This tractor is a 1974 w/ 4cyl perkins diesel that Dad bought new, it has a CAV pump on it and it is leaking fuel at the cover gasket, dad bought a new gasket for it so I'am working trying to correct the problem, I have checked and cleaned all the edge's and put it all back together and that darn thing is still leaking around the cover S**$^@*%% now what any help would be great, is there anything a guy can use to correct this ?
Thanks. 
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geb View Drop Down
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Joined: 29 Sep 2009
Points: 117 		Post Options Post Options   Thanks (0) Thanks(0)   Quote geb Quote  Post ReplyReply Direct Link To This Post Posted: 02 Jan 2012 at 6:18pm

You probably have a hair line crack in the cover.  They are bad for that.
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injpumpEd View Drop Down
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Joined: 13 Sep 2009
Location: Walnut IL
Points: 5096 		Post Options Post Options   Thanks (0) Thanks(0)   Quote injpumpEd Quote  Post ReplyReply Direct Link To This Post Posted: 02 Jan 2012 at 7:31pm
I've only ever seen one cracked, but there can be some warpage in the top cover due to overtorquing in the past. the torque on the acorn nuts is only 45" lb. they can be a challenge to get sealed up. 
210 "too hot to farm" puller, part of the "insane pumpkin posse". Owner of Guenther Heritage Diesel, specializing in fuel injection systems on heritage era tractors. stock rebuilds to all out pullers!
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ac-mike View Drop Down
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Joined: 14 Sep 2009
Location: Kentucky
Points: 277 		Post Options Post Options   Thanks (0) Thanks(0)   Quote ac-mike Quote  Post ReplyReply Direct Link To This Post Posted: 03 Jan 2012 at 8:05am
Those pumps are prone to leaking by the o-rings on the control rods that are in the head. The o-rings tend to harden and leak with age. Thet are easy to replace, I have done several.
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Eldon (WA) View Drop Down
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Joined: 11 Sep 2009
Location: Spokane, WA
Points: 7765 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Eldon (WA) Quote  Post ReplyReply Direct Link To This Post Posted: 03 Jan 2012 at 10:45am
I have one that had been leaking at the shut-off shaft off and on for quite a few years. I found that if I don't push the knob all the way in (leave it 1/4" out) it wouldn't leak. Has been over a year now and still no leak. It has become a habit on all of my 170/175's now.
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