Topic: fuel leak
in Forum: C3 Engines
Lifetime Member
.
seriously. not sure as i don't know what engine you have but on my 75,
350, the fuel line is routed from the pump to the carb on the front in
the general location of where you are seeing the fuel.
THE DYNAMIC DUO
Brian - NCM Lifetime Member
73 coupe L48, Flat-top pistons, Performer RPM Heads, Crane Cam and roller rockers, Holley 650 vac sec. Performer intake,
3.55 gear BTO 200-4R trans,
Leather seats, Seatbelt Plus 3point seatbelts, Pioneer CD player
Magnaflow Exhuast System
Sometimes the diaphragm can develop a small rip in it allowing fuel to flow into the motor mixing with the oil. You will need to change the oil after you replace the fuel pump.
Brian - NCM Lifetime Member
73 coupe L48, Flat-top pistons, Performer RPM Heads, Crane Cam and roller rockers, Holley 650 vac sec. Performer intake,
3.55 gear BTO 200-4R trans,
Leather seats, Seatbelt Plus 3point seatbelts, Pioneer CD player
Magnaflow Exhuast System
Also, there is a short bolt into the block just above the fuel pump. You can pull this bolt out and replace it with a longer one to hold up the pump drive rod while you change the pump. DON'T FORGET TO REMOVE IT BEFORE FIRING!
Alternatively, you can sometimes get a little bearing grease to hold it in place while replacing the pump. The bolt is better as it keeps the rod from sliding out in the first place. Put the longer bolt in before removing the pump.
At least this works on the later ones. I would think it was a standard feature to make life easier on the mechanics.
Some of the guys with older cars can tell you for sure or your manual will tell you.
I just finished replacing my fuel pump yesterday. I put a bit of grease on the drive rod and slid back in. The grease kept it from sliding down while I installed the new pump. I didn't have a longer bolt. This was the 1st. time for replacing one. Don’t forget to remove the plate behind the fuel pump to gain access to the drive rod. It took me a minute to figure that out.