2H Injection Pump Leak

jfc

Joined
Jan 18, 2005
Messages
700
Location
Mile 62.5, BC
 
My wife's 2H injection pump is leaking diesel from the top. Doing some reading on here it seems to be the injector valve seal.

Is this just an o-ring? Any idea what size? Is there a seal kit out there?

Also the injector valve seal seems to have some sort of lock on it, any secific orientation it needs to be in? or is the jut to prevent it from backing off.

And what are these torqued to?

Thanks
 
Joined
Jul 28, 2010
Messages
449
Location
Bowmanville, Ontario
 
If you tighten the union nut that is on the injector line itself will it stop leaking? I would do that before you open a bigger can of worms than you want.

The minute you back off the locknut on top of the leak-off rail you might introduce air into that system causing all sorts of issues and you might as well go buy 6 new aluminum washers and grab a copy of the 2H FSM. 2H's do not like air in the fuel system....that I know.
 

jfc

Joined
Jan 18, 2005
Messages
700
Location
Mile 62.5, BC
 
If you tighten the union nut that is on the injector line itself will it stop leaking? I would do that before you open a bigger can of worms than you want.

The minute you back off the locknut on top of the leak-off rail you might introduce air into that system causing all sorts of issues and you might as well go buy 6 new aluminum washers and grab a copy of the 2H FSM. 2H's do not like air in the fuel system....that I know.
I guess thats worth a try.

thanks for all the info
 

jfc

Joined
Jan 18, 2005
Messages
700
Location
Mile 62.5, BC
 
Just tightning didnt work, and I don't have a wrench to fit the bottom (where its loosning when I try to take the line off) will get one today.

Orderd gaskets from 4wheelauto, $4.35 ea, and dan called them delivery valve gaskets.
 

jfc

Joined
Jan 18, 2005
Messages
700
Location
Mile 62.5, BC
 
I need to get a copy of the FSM, took the delivery valves out (maybe just the housing) and some spring comes out too, there seems to be more stuff (valve components?) I can take out of the injection pump, and I guess the gasket is at the bottom? I should take some pictures.
 

jfc

Joined
Jan 18, 2005
Messages
700
Location
Mile 62.5, BC
 
Some pics of the injection pump with the lines off, the valve gaskets, and the delivery valve. You can see the old gasketd still on the base of the delvery valve. The FSM shows the blowup well. I think it leaked because it loosened up; when taking the lines off the piece abouet the valve would thered out quite easily. This is likley because the clamp was not on right (only touching one of the two grooverd rings).
IMG_3869.jpg
IMG_3872.jpg
IMG_3874.jpg
 

jas

Joined
Sep 27, 2016
Messages
55
Location
tas
Just started my hj60 and it whistled really weirdly and then Diesel was all in the area where you pulled apart,wondering if you fixed it and was that the problem only?
Is there any other area in that area that fuel can leak?
 
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