Hello everyone. My first post asking for some help and advice.
The car's a Southern GT40, 347, Eight Stack, Accel DFI.
2x Mitsuba's and 1x high pressure fuel pump.
The car was running great. It took me to the Le Mans Classic, did 3 track sessions and brought me home. A circa 400 mile round trip. It used no oil and no water.
The problem,
I took it out for a 20 mile jaunt and then it wouldn't start. I traced the fault to "no voltage" at the high pressure fuel pump. I traced the voltage back through the relay, and to the Accel DFI. The relay is working. The wiring to (from) the Accel DFi has continuity. The connector for the DFI wiring loom/DFI Unit appears good. The earthing is good. The pump functions with a temporary 12volt supply from the DFI Wiring Loom end (if that makes sense). The problem to my mind's eye is the Accel DFI is no longer providing the voltage.
1) Does this sound credible?
2) Can I provide a temporary 12volt feed to the high pressure pump without causing damage to the Accel DFI?
3) I'm in the UK. Does anyone here know of anyone who can work on Accel DFI's, given they are now dated and no longer manufactured?
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A possible Red Herring - The L/H Fuel Tank/Pump has been "clattering"for a while (pre Le Mans Classic) and I have been using the R/H Tank/Fuel Pump.
A filter/bowl check showed no significant blockage (looking for Explosafe). Just very tiny amounts of equal quantities in L/H and R/H Bowls. The filters are clear.
I can't see a connection but clearly do not have the knowledge base of this community at large.
The noisy Mitsuba is going to be replaced.
Any thoughts or pointers would be greatly appreciated.
Thanks.
The car's a Southern GT40, 347, Eight Stack, Accel DFI.
2x Mitsuba's and 1x high pressure fuel pump.
The car was running great. It took me to the Le Mans Classic, did 3 track sessions and brought me home. A circa 400 mile round trip. It used no oil and no water.
The problem,
I took it out for a 20 mile jaunt and then it wouldn't start. I traced the fault to "no voltage" at the high pressure fuel pump. I traced the voltage back through the relay, and to the Accel DFI. The relay is working. The wiring to (from) the Accel DFi has continuity. The connector for the DFI wiring loom/DFI Unit appears good. The earthing is good. The pump functions with a temporary 12volt supply from the DFI Wiring Loom end (if that makes sense). The problem to my mind's eye is the Accel DFI is no longer providing the voltage.
1) Does this sound credible?
2) Can I provide a temporary 12volt feed to the high pressure pump without causing damage to the Accel DFI?
3) I'm in the UK. Does anyone here know of anyone who can work on Accel DFI's, given they are now dated and no longer manufactured?
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------
A possible Red Herring - The L/H Fuel Tank/Pump has been "clattering"for a while (pre Le Mans Classic) and I have been using the R/H Tank/Fuel Pump.
A filter/bowl check showed no significant blockage (looking for Explosafe). Just very tiny amounts of equal quantities in L/H and R/H Bowls. The filters are clear.
I can't see a connection but clearly do not have the knowledge base of this community at large.
The noisy Mitsuba is going to be replaced.
Any thoughts or pointers would be greatly appreciated.
Thanks.
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