engine won't run

A

aermotor

Well-known member
I have a Weber 2 barrel downdraft. The engine ran good and will not start now. It will fire for a couple seconds with starter fluid and that's it. I have checked every thing with the ignition system and feel confident that is all well. Fuel pumps into the manifold when pumping gas pedal but will not fire without the starter fluid. Any ideas where to go now? I am tempted to swap the induction system, manifold and stock carb from another running car to troubleshoot - Big Job!

John
 
A guess, would a weak spark only run with starter fluid? My dad and I worked at starting a car one winter, blew the muffler, it coughed back through the carburetor setting dads hair on fire! Dad had it towed to a shop and they did a tune up, plugs, points, rotor.
 
Big hammer said:
A guess, would a weak spark only run with starter fluid? My dad and I worked at starting a car one winter, blew the muffler, it coughed back through the carburetor setting dads hair on fire! Dad had it towed to a shop and they did a tune up, plugs, points, rotor.
Click to expand...

Crossed my mind but I am getting a nice blue/white spark from each spark plug. BTW, This exact same problem existed when I was running a Mallory centrifugal distributor, which I replaced with original system thinking I had a problem with the centrifugal advance. Two good different systems and same problem, I guess I better look deeper into a fuel problem.
 
Last edited:
Good Evening...Another couple of places to look...One check to see if the shaft from your distributor to the oil pump is still working. Take the top off the distributor and look to see if the rotor is turning...it happened to me once! Two check the little wire in the bottom of your distributor to see if the insulation is starting to come off and it has become possible for it to short to the case...Good luck...Ernie in Arizona
 
You must log in or register to reply here.
Back
Top