I have noticed a leak of fuel at he front of the fuel pump. Only does it when cold. has anyone seen this before? I am going to tighten the pump cover and fuel lines to see if one has come loose. info please

Thanks.,
Jim

 

My first guess is that it is leaking around that gizmo that requires a 10mm Crow-Head to remove.


Look at the picture.

Note the skinny little fuel-line that comes out of the top of the ??AFB??KSB??(which is it ??) valve, then goes up, just behind the timing-cover, in under the fatter line that is visible, terminating in a round "banjo" fitting.

You can screw this fitting, straight up and out of that "banjo", much like removing a spark-plug.

There will be three (or is it four ??) identical O-rings spaced on this gizmo.

Replace the O-rings.



Injector-pump leaks are hard to pin-point.

The engine is vibrating, the fan is pushing a tornado through there, fuel is running and pooling up all over.


The way I once found a pump leak was to take a long broad-bladed straight screw-driver and sort of dam up the flow of fuel, thus eliminating any sources down-stream of my screw-driver blade "dam".

The fuel would look like it was coming from all over; but, once I started working my way across the top of the pump,damming it up as I went, I isolated it to be that gizmo described above.


If you find that that is indeed your leak, I will post a link to a lengthy thread we did about finding and fixing it.

I think there is even a tech write-up in the sticky.

 

Can you circle the leaky area? I really don't see where it's wet in the pic.