I've got a 1200c 4x4 1968 pickup with a 304. It starts and runs great. I've just got one issue, and that is after the truck is all warmed up and I shut it off for 10 min or so it's slower to restart. If I shut it off and try to restart after just a few min it starts right up. Any ideas?
Slow hot start
- Thread starter Maughan
- Start date
Michael Mayben
IHPA Tech Moderator - Retired & No Longer Online
Verify that the entire ignition system is up to spec, most importantly that the base timing is correct for your application and grade of fuel being used.
Then...verify that the carburetor idle mixture screws are adjusted properly and that the choke system is operational. If the carburetor has not been reconditioned in the last two/three years, it's time to do so!
If the cranking speed produced by the starter is the same whether the engine is cold or hot, then you don't have an electrical system issue. But if cranking speed is not the same under both conditions, then check battery for terminal voltage/ampacity, and check the battery cables for quality and proper mounting.
Those are the places I begin a diagnostics, in that order.
Then...verify that the carburetor idle mixture screws are adjusted properly and that the choke system is operational. If the carburetor has not been reconditioned in the last two/three years, it's time to do so!
If the cranking speed produced by the starter is the same whether the engine is cold or hot, then you don't have an electrical system issue. But if cranking speed is not the same under both conditions, then check battery for terminal voltage/ampacity, and check the battery cables for quality and proper mounting.
Those are the places I begin a diagnostics, in that order.
There isn't a change in the starter function. Thats working great. I've rebuilt the carb,(it has a manual choke) and I've replaced the points, condenser, plugs, wires, cap, rotor, coil. I've timed it at, (I think) to 5 btd. It runs really good, idles well, it's just this one small issue. Normal start up is to depress the gas pedal twice and it starts right up. After it's been running shutting it off requires no gas to restart. When it's up to temp and I shut it off for ten minutes or so it starts a little slow. I'm not sure if it's not enough gas or too much.