Hard to start when cold
Thread Starter
Heel & Toe
Joined: May 2013
Posts: 18
Likes: 0
From: Adelaide South Australia
Hard to start when cold
I have a 1970 454 C3 which is hard to start when cold but starts easy when warm. It has fuel in the Quadrajet after sitting overnight and it pumps fuel in from the accelerator pump when throttle is activated. The choke works properly and closes to within 1/4 inch when cold. If I pour some fuel in the primaries (about 10ml each side) it starts perfectly. Not sure why it does this. Steve.
Le Mans Master
Joined: Jan 2006
Posts: 6,505
Likes: 139
From: Butler Pa
I have a 1970 454 C3 which is hard to start when cold but starts easy when warm. It has fuel in the Quadrajet after sitting overnight and it pumps fuel in from the accelerator pump when throttle is activated. The choke works properly and closes to within 1/4 inch when cold. If I pour some fuel in the primaries (about 10ml each side) it starts perfectly. Not sure why it does this. Steve.
Drifting
Joined: Jan 2011
Posts: 1,853
Likes: 81
From: Hamilton Virginia
When I start my 454 in cold weather or any weather, is pump once and crank. It starts right up, and thats with the choke completely closed. This is also the same as my other carb'd vehicles. The choke must be all the way closed.
Team Owner
Joined: Sep 2006
Posts: 31,214
Likes: 4,302
From: Westminster Maryland
Hi s,
From the owner's manual:
"For a car that's been sitting for a day or two or more.
Fully depress the accelerator pedal 2 or 3 times before cranking, then with foot off the accelerator turn the key to 'start'."
On my sb when it's been sitting for weeks I depress 2 or 3 times, wait about 1/2 a minute, do it again, and then turn to start.
Starting a car with a carb is very different than starting a car with fi.
Regards,
Alan
From the owner's manual:
"For a car that's been sitting for a day or two or more.
Fully depress the accelerator pedal 2 or 3 times before cranking, then with foot off the accelerator turn the key to 'start'."
On my sb when it's been sitting for weeks I depress 2 or 3 times, wait about 1/2 a minute, do it again, and then turn to start.
Starting a car with a carb is very different than starting a car with fi.
Regards,
Alan
