Tony Tee
Well-Known Member
A lot of general aviation aircraft have a fuel primer to assist the engine to start quicker. And aviation fuel has No ethanol.
Do I need an electric fuel pump? 71 Charger 440x6
- Thread starter Jeff Erwin
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True, but there's not many cars running updraft carb systems...
So, I guess I would like a little more info before I would start throwing parts at it. First, do you run a fuel filter or the correct fuel separator with the fuel return line to the tank? If you have a fuel filter, is it before or after the pump? Do you use the high idle solenoid correct for 6bbl cars? Have you checked to make sure that all your clamps and fittings are tight? I have a 6bbl car, with a fuel filter in-line before the fuel separator, a mechanical pump, and the high idle solenoid in working order. I pump my car twice and turn it over, it doesn’t crank very many times before it fires up, even after sitting. Now, on first startup after winter, I’ll splash a little fuel down the center carb before it try it, but that’s the only time I have to do that. I run a 50/50 mix of 110 Turbo Blue and 93 octane ethanol free “rec fuel”.
All joking aside my dad's 40 chevy had a primer bulb on the right splash panel.
The 235 had a set of Rochester 2bbls that would leak down.
My 70 Rover 3500S (Buick 215 V8) had 2 SU carbs, feeding opposite sides, a minor ram effect. Originally, it used the standard GM mechanical pump, but suffered frequent vapor lock...even in Blighty! So...the export V8s came with an in-tank electric pump. If the car sat for days, I wold turn the key, listen to the pump until the pulses slowed down, indicating full bowls, then start. Better, Rover worried so much that the US exports had the splendid 3 cast aluminium scoops on the aluminium bonnet: 2 to cool in summer, and the center to open on full throttle to feed cool air to the carbs. Otherwise they received warm air, to help comply with smog regs. Photos to better explain, for your viewing pleasure.
Rover experts will note the engine photo is from a later SD1, confusingly named the 3500S, with the same engine. The US import version of the SD-1 had Bosch FI, to comply with CA smog standards. 8.5: CR, a real dog. Great car tho'!
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