by ellis93 » Thu Jun 16, 2016 8:12 pm
I'd dry the bore out and run the factory pin,to see if it does it again.
If your patient,you can install that oring with the pump in place. You'll need to remove the throttle lever assembly and have a small pair of needle nose pliers. You remove the pin and then you'll see the oring. It'll be sandwiched between a (I don't really know what to call it) cap and the housing. That "cap" has a place for an Allen wrench,couple of turns and its out and the oring is easily removed.
93 D250 ,5 speed,4.11s,k&n autometer tach pyro trans boost guages,GDS 60mm h1c 14cm,honed 5x10,hplp/reg,1/8 timing,M+H M2 fuel pin, tims cooler tubz