You may recall I have a Series 2 that doesn't seem to run right. I think
I'm getting close to a solution.
I think I have eliminated all other possibile problems and everything points
to my Zenith Carbs. Scott was kind enough to send me the article "To carb
and Alpine."
Before I go ahead and rejet these carbs (they are NOS, so I've done all I
can to avoid opening them) I wonder if anyone has the experience I've had or
if you could direct me to the most knowlegeable person about jets for an
Alpine.
Turns out the carbs I have are:
C1688F
36WIP-2
1046674
and
C1688R
36WIP-2
1046874
The carbs I took off the car after I bought it were:
C3744F
36WIP-3
1800118
and
C1744R
36WIP-3
1800119
>From the article Scott sent me I see that the differences are:
Carb & Car Pump discharge Nozzle Idle Tube
36WIP-2 (S2) 50 50
36WIP-3 (S2) 70 45
New parts (or rebuilt):
Carbs
Generator
Distributor (45D from Moss Motors)
Mechanical fuel pump (from Sunbeam Specialties) (I've tried an electric pump
too)
New coil connected to a ballast resistor (a mechanic put this on)
Clean fuel tank
Engine compression:
1 120 psi
2 121 psi
3 120 psi
4 125 psi
I put a fuel regulator after the fuel pump to ensure that I've got the right
fuel pressure. I adjusted the carbs to run a bit rich and I can drive the
car. Runs fine on the flat spots but struggles very hard up the hills.
Have to keep it at 3,000-4,000 rpm.
I made sure my polarity on my coil is correct with the spark jumping from
the plug toward the plug wire. It jumps a good 1/4 inch or more.
I pulled the plugs and each of them are fine black powdery, naturally
because it's running too rich.
If I simply change the pump discharge nozzle and idle tube, could this
correct my problem by allowing me to run the carbs lean.
Any ideas would be appreciated.
Jason Raser
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