OK guys, a little more help with fuel lines
#1
OK guys, a little more help with fuel lines
my sons 88 camaro that had a engine fire is making progress. with all of your help and pointers, we got through most of the wiring harness replacement. thanx.
so now with the fuel system. I have three hard lines coming off the tank. the largest appears to go through a filter or some kind of accessory at the back of the car, drivers side, underneath. it continues to the engine/ carb area. there is a medium sized line and a smaller one. any help as to which is the fuel feed, and what the other two are, if they are needed? thanx. the small one appears to be the bent for the smog stuff that went bye bye. can it be capped? medium might be the return line to tank. can it be capped? lol. thanx
also the electric fuel pump was not in the wiring harness from the donor car. I hope the mechanical pump can suck through it. input? thanx again.
dave and trevor
so now with the fuel system. I have three hard lines coming off the tank. the largest appears to go through a filter or some kind of accessory at the back of the car, drivers side, underneath. it continues to the engine/ carb area. there is a medium sized line and a smaller one. any help as to which is the fuel feed, and what the other two are, if they are needed? thanx. the small one appears to be the bent for the smog stuff that went bye bye. can it be capped? medium might be the return line to tank. can it be capped? lol. thanx
also the electric fuel pump was not in the wiring harness from the donor car. I hope the mechanical pump can suck through it. input? thanx again.
dave and trevor
#2
so, i did some local info hunting in town and found the following-
the large line 3/8" is the feed line from the tank.
the medium 5/16" is the return
the small is the vent
the car that i am working on does not have an original motor in it. being told it may have an electric pump in the tank raises a question, if the pump is in the tank, why would there be a return? guess ill have to go search the chiltons for the answer to this one.
the large line 3/8" is the feed line from the tank.
the medium 5/16" is the return
the small is the vent
the car that i am working on does not have an original motor in it. being told it may have an electric pump in the tank raises a question, if the pump is in the tank, why would there be a return? guess ill have to go search the chiltons for the answer to this one.
#3
Electric pump setups like what your car had has the supply line that led to a fuel pressure regulator, which also has a return line connected to it. That's so the pump runs at a constant rate, and any unused fuel gets returned to the tank. Without a return, an electric pump will burn out faster because it's hitting a "dead end" and being held back.
If your electric pump still works, you'd probably be better off using that and installing an aftermarket pressure regulator before the carb.
If your electric pump still works, you'd probably be better off using that and installing an aftermarket pressure regulator before the carb.
#4
initially my plan was to use the in-take pump (if there was one). after restoring power to the car, and beginning to work our way through the wiring harness from the donor car (v6, was told the fuel pump is mechanical so no wiring for a fuel pump) and having all the relays and stuff smoked in the fire, i realized that even if there is a pump in that tank, there is no way its gonna work without a world of wiring and misc parts repaired. if we were to restore the car (not worth it) maybe... but its my sons first car so we'll take the easy route this time. there is a mechanical pump on the side of the motor just sitting there
we did buy a bender and are rerouting all the fuel lines in hard line to avoid more potential of another fire.
we did buy a bender and are rerouting all the fuel lines in hard line to avoid more potential of another fire.
#5
Nope, your car was fuel injected, with an in-tank fuel pump. http://www.f-body.org/tech/tech.htm#ThirdGen
Since you're not going with an original F.I. setup, you can wire the pump to a switched power source so it runs when you turn the key on. Doesn't really need a world of wiring and misc parts.
Since you're not going with an original F.I. setup, you can wire the pump to a switched power source so it runs when you turn the key on. Doesn't really need a world of wiring and misc parts.
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