Ive been dealing with this issue for a while now and its starting to get worse and fast. This is a 82 cutlass with 267 all stock.
Previously if it sat for any length it would crank for about 10-30 seconds before firing right up, a few kicks on the throttle would fire it up normally. I've assumed there's a check valve that's leaking back to the tank. It's also has a idle of about (1000-1100) and would go up to around 1750 once it warmed up. kick the gas and it would drop down to about 550 or so until it creeped back up.
about a month back it started to miss fire when I dropped the throttle to fast from idle occasionally stalling. Since then its lost power when accellerating for the first few moments after I press on the gas and pulls normal a couple seconds after. Its missing hard or surging at any higher RPM and bogging bad enough I think its going to quit but drop it back to idle or light throttle and it drives well.
Today I replaced dist. cap, rotor wires and all the vacuum lines that looked ratty today just to rule them out since the parts where on hand. Also set the base timing to 10 degrees just by pulling the vac. line from the vac. advance and setting to 10 degrees, Is this the correct procedure?
To me it feels starved of fuel. I was planning to grab a Filter and pump tomorrow but I'm just guessing any other suggestions? thanks a lot for any help you can offer
Previously if it sat for any length it would crank for about 10-30 seconds before firing right up, a few kicks on the throttle would fire it up normally. I've assumed there's a check valve that's leaking back to the tank. It's also has a idle of about (1000-1100) and would go up to around 1750 once it warmed up. kick the gas and it would drop down to about 550 or so until it creeped back up.
about a month back it started to miss fire when I dropped the throttle to fast from idle occasionally stalling. Since then its lost power when accellerating for the first few moments after I press on the gas and pulls normal a couple seconds after. Its missing hard or surging at any higher RPM and bogging bad enough I think its going to quit but drop it back to idle or light throttle and it drives well.
Today I replaced dist. cap, rotor wires and all the vacuum lines that looked ratty today just to rule them out since the parts where on hand. Also set the base timing to 10 degrees just by pulling the vac. line from the vac. advance and setting to 10 degrees, Is this the correct procedure?
To me it feels starved of fuel. I was planning to grab a Filter and pump tomorrow but I'm just guessing any other suggestions? thanks a lot for any help you can offer