BadDog
09-26-2011, 19:12
Finally got most of my known issues dealt with and decided it was time for the intake to come off (have J intake and gaskets in hand) as well as reseat my injector lines. This motor was VERY clean for a Detroit, but I hate working on grimy gritty motors, so I power washed it yesterday in preparation for the task. Tonight I cranked it again and checked to confirm exactly which of the now clean lines was leaking...
Answer: None of them...
Looks like the fuel was wicking along the grime and made it appear that the lower lines on the driver side were leaking. But the clean pump is clearly leaking from the throttle shaft on the driver side. In fact, it's now running from the shaft down the lever plate (cable/idles/solenoid) and dripping into the valley.
So some quick searching seems to indicate that there is an o-ring in there. I suppose setting for several years it got hard/shrunk and here we are. Still haven't found enough info to be sure exactly what this requires (in frame? just get rebuilt, standard o-ring size/type? etc.), so I thought I would post the question while I keep investigating myself. It's a bit hard to search for something like "fuel pump leak" and even adding qualifiers (perhaps not knowing the correct terminology) hasn't turned up anything particularly definitive yet, so advice or a link to appropriate threads would be much appreciated.
Answer: None of them...
Looks like the fuel was wicking along the grime and made it appear that the lower lines on the driver side were leaking. But the clean pump is clearly leaking from the throttle shaft on the driver side. In fact, it's now running from the shaft down the lever plate (cable/idles/solenoid) and dripping into the valley.
So some quick searching seems to indicate that there is an o-ring in there. I suppose setting for several years it got hard/shrunk and here we are. Still haven't found enough info to be sure exactly what this requires (in frame? just get rebuilt, standard o-ring size/type? etc.), so I thought I would post the question while I keep investigating myself. It's a bit hard to search for something like "fuel pump leak" and even adding qualifiers (perhaps not knowing the correct terminology) hasn't turned up anything particularly definitive yet, so advice or a link to appropriate threads would be much appreciated.