fuel leak

[TonyL]

Hi everybody,

I have an '83 3/4 ton 4x4 with 6.2. I was jacking the front end to do some brake work and diesel started leaking pretty goodfrom the enigine compartment. I couldn't tell where it was from but was running off the bottom of the engine. Anybody have this happen to them or know the first place to look. I am going to check the fuel lines to the lift pump. My thats why it starts so hard huh? Any comments are appreciated.

Thanks
Tony

[catmandoo]

more than likly the injector pump leaking below the pump and when you lifted it it started running out the back probably off the bellhousing cover.

[britannic]

The IP's favorite places to leak, are from the throttle shaft and the external servo advance piston actuator at the bottom passenger side (throttle cam plate pushes a rocker arm that in turn pushes the actuator).

Less common, is the governor cover gasket and the return hose.

Get a flashlight and look under the pump for pooled fuel. Inspect the IP for any fuel glazing, this is all evidence of leaking.

[20050518|5|001787|000004|68.109.149.83]

Hi Everyone,

I've got a military k30 that I had a recent leak problem. I thought I had a check valve gone in my lift pump, HARD STARTING. When I got it out, the rubber hose had rubbed through on the cross member. Got it back running with some help from a friend. This is my first diesel, after almost 30 years with 292 L6.

[ropinfool]

I have the same model as you, same thing happened to me, turned out to be the secondary filter was loose, decided then was a good time to change it. Good luck. John

[TonyL]

thanks for the ideas i havent had a chance to look at it yet so keep them coming

Tony

[n0n0_1963]

I had the same issue, it was leaking from above the starter, the fuel filter was the problem, I change this one and solve the problem, probly an o'ring.