today i went to leave this morning and when started the truck i let it run for a min and then left.i looked in the driveway and saw a wet spot.i pulled in and looked at it and smelled like gas.i did not have time to look at it and left it at home.later i looked at it and started it up this afternoon and had no leak.what is going on.it is at the engine at the front rt side where the filter is.its a 318 86 truck thanks
1972-D100
10-14-2008, 03:22 PM
Do you have an in-line fuel filter on the lower right front portion of the motor? Mine does (not sure if it is a factory spot or not) but I had the same issue except mine would only leak when it was warm outside and the truck was sitting for an extended amount of time. I had to simply change out one of those cheap spring type clamps on the gas line with a regular hose clamp, no more leak.
dolfans
10-14-2008, 09:15 PM
yes the gas filter is on the right front side.i started it this afternoon and no leak.then tonight at dusk i started it and it leaked.i have a clamp on top hose.it has a hose on the middle(never seen that)and a hose on the bottom.both of those have that squeeze type clamp.i plan on getting the clamps tomorrow and put on this thursday thanks
fins2fuselage
10-14-2008, 10:30 PM
yes the gas filter is on the right front side.i started it this afternoon and no leak.then tonight at dusk i started it and it leaked.i have a clamp on top hose.it has a hose on the middle(never seen that)and a hose on the bottom.both of those have that squeeze type clamp.i plan on getting the clamps tomorrow and put on this thursday thanks
Dolfans (and '72),
Change all of the rubber fuel hose, too. Use ONLY fuel-injection-grade hose when you do so (SAE 30-R9, costs about $4.00/ft). The old-style SAE 30-R7-type hose is only good for about 18 months when put into contact with modern reformulated gas, yet it is still sold widely.
Replace all pieces on both the pressure and the suction sides of the fuel pump, including the couplers at the tank and the fuel filter and the run of about one foot beneath the right side of the cab -- and anywhere else in the system.
