flippo1 wrote:http://forums.aussieveedubbers.com/viewtopic.php?tid=64563
< that was my problem. I think what has happened is my previous mechanic has installed a cheap mexican fuel pump, and it's shat itself. Particularly bad under heat expansion stress. My mechanic suggests installing an aftermarket low pressure electronic pump, just bypassing the existing pump and mounting it somewhere.
Has anyone done this? What model pump would you recomend? Where would you recomend mounting it?
I have a Carter rotary pump that I have only put a few thousands k's on but it hasn't caused me any grief. They were recommended on another forum for being quiet and reliable.
I mounted it on the frame rail near the mechanical pump which is outside the engine bay on the right hand side. There are two reasons for putting the pump outside the engine bay: pumps are better at pushing and it puts a few fuel line connections (potential leak points) outside the engine bay
He said to just wire it up to the ignition aux? I guess it will constantly pump the same amount of fuel, will that be a problem when the car idles?
I wired mine to a relay that is connected to the alternator light on the dash. When the light is on the pump doesn't work. There is enough fuel in the fuel bowl to get started. The reason for connecting the pump at this point is that if you're in an accident the fuel pump will stop pumping if the engine stops. If it's wired to the ignition it will keep pumping.:duh
The Carter I got is internally regulated to 3.5 psi (should have mentioned this before). I presume they have an internal bypass to cope with the change in demand between idle and flat schtick.