Car was running fine.. started a short journey and engine performed nicely... after about 25 minutes of easy driving the engine stated to "buck" and then miss .. I managed to keep it running for a short time by pumping the accelerator.. may be cause of this action it started to backfire though in the exhaust system and through the carb.
Shut engine down and coasted to a stop... it would start again after cranking and pumping accelerator but only "run" in a matter of fashion with immediate backfiring a couple times and then die..
When I got it brought home, removed the carb and noticed in take was wet with fuel .. (maybe because of my pumping accelerator?) anyway had the carb rebuilt just in case.
Engine has complete new ignition parts in place ( car was not run for 25 years)
Heads were refreshed and reinstalled with new gaskets .. compression was checked after got running and had used car for a number of test runs. Compression readings were even across the board. generally either side of 125.. 4 months later checked compression again( engine cold and had not been running in the 4 months time) .. readings were down around the 90 mark but varies as low as 70 and high as 130 ... second test after cranking engine for a bit brought readings up by 15 but still erratic across the board.
I have checked the condenser and coil ... I do get spark.. if I have a helper manually adjust the distributor while turning engine over it tries to fire ( as if it were flooded.. and it is not)
Wondering if timing chain could have jumped a tooth... might give the new compression readings as the valves may not be closed completely when they should be?? I removed the valve covers and the valve train moves properly, push rods rotate .. timing mark on crank pulley looks right when #1 is TDC .
Any ideas any advice would be helpful.
Was thinking of upgrade to electronic pick up for the distributor.
Shut engine down and coasted to a stop... it would start again after cranking and pumping accelerator but only "run" in a matter of fashion with immediate backfiring a couple times and then die..
When I got it brought home, removed the carb and noticed in take was wet with fuel .. (maybe because of my pumping accelerator?) anyway had the carb rebuilt just in case.
Engine has complete new ignition parts in place ( car was not run for 25 years)
Heads were refreshed and reinstalled with new gaskets .. compression was checked after got running and had used car for a number of test runs. Compression readings were even across the board. generally either side of 125.. 4 months later checked compression again( engine cold and had not been running in the 4 months time) .. readings were down around the 90 mark but varies as low as 70 and high as 130 ... second test after cranking engine for a bit brought readings up by 15 but still erratic across the board.
I have checked the condenser and coil ... I do get spark.. if I have a helper manually adjust the distributor while turning engine over it tries to fire ( as if it were flooded.. and it is not)
Wondering if timing chain could have jumped a tooth... might give the new compression readings as the valves may not be closed completely when they should be?? I removed the valve covers and the valve train moves properly, push rods rotate .. timing mark on crank pulley looks right when #1 is TDC .
Any ideas any advice would be helpful.
Was thinking of upgrade to electronic pick up for the distributor.