Wietse
Well-Known Member
First of all, I will order a stroboscope to check the ignition timing myself and get another vacuum gauge as well.
Just to confirm the timing settings to see if they are up to specs for this engine.
Distributor is with mechanical advance only, don't know the current setting.
What would be a good starting point regarding initial timing with how much advance?
12 deg initial and a 24 deg mechanical advance, so total 36 deg @ 2500 rpm and up?
Distributor and cables are new, less then 500 miles driven with them.
I did read some more threads where people describe exactly the same issue i am stuck with.
People replaced all fuel hoses, pumps, pick ups etc. but they also did not manage to get rid of the problem.
I am also starting to believe it is not the fuel causing the issue here, but rather ignition or air supply.
Doesn't a blocked air filter cause more vacuum in the carb which causes more fuel to be drawn in the engine and maybe causes the engine to nose dive at higher rpm due to air/fuel mixture is miles off and will not detonate properly?
Just to confirm the timing settings to see if they are up to specs for this engine.
Distributor is with mechanical advance only, don't know the current setting.
What would be a good starting point regarding initial timing with how much advance?
12 deg initial and a 24 deg mechanical advance, so total 36 deg @ 2500 rpm and up?
Distributor and cables are new, less then 500 miles driven with them.
I did read some more threads where people describe exactly the same issue i am stuck with.
People replaced all fuel hoses, pumps, pick ups etc. but they also did not manage to get rid of the problem.
I am also starting to believe it is not the fuel causing the issue here, but rather ignition or air supply.
Doesn't a blocked air filter cause more vacuum in the carb which causes more fuel to be drawn in the engine and maybe causes the engine to nose dive at higher rpm due to air/fuel mixture is miles off and will not detonate properly?