Does anyone know how to test the standard mechanical fuel pump? Obviously u take off the line from the carb and crank into a bowl or jug but anyone know how much it should be pumping on crank if it's working properly?
Cheers all.
Fuel pump test.
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rhythmrider
- Posts: 89
- Joined: Mon Sep 02, 2013 6:58 pm
Re: Fuel pump test.
I think you should expect about 1/3 gallon per minute free flow with the standard mechanical fuel pump.
(But this will vary dramatically with engine speed.)
Flow is important, but pressure is just as important.
I think the pressure for proper operation is between 2 - 4 lbs.
Many people change out their old mechanical fuel pumps for an inline electric pump and put it down by the fuel tank.
If you decide to do this be sure to get a low pressure pump, not a modern high pressure "fuel injection" pump.
(But this will vary dramatically with engine speed.)
Flow is important, but pressure is just as important.
I think the pressure for proper operation is between 2 - 4 lbs.
Many people change out their old mechanical fuel pumps for an inline electric pump and put it down by the fuel tank.
If you decide to do this be sure to get a low pressure pump, not a modern high pressure "fuel injection" pump.