Hi Gang,
I've had an issue with valves sticking after getting my '76(302, dual exhaust, auto tranny)back on the road last year after having sat outside under a tarp for @ 10 years. Last year I removed the gas tanks and cleaned them. New fuel senders, pump and filters. It's ran a little rough when cold but would free up after she warmed up and it ran great. I did the paper at the tailpipe test and it sucked it in on both banks of the 302 when it ran rough. Drove it to the Cape this past weekend with no issues until I got off the highway. It started running rough again and then had idle issues and stalled. Stayed like that over the weekend and I tried freeing it up Sea Foam down the carb but that didn't change anything. I was able to drive it home. It seemed ok enough but still not 100%. Plugs and wires are @ 25 years old that I put in after the engine was rebuilt. Motor has @ 20k miles on it and it's basically stock and running newly rebuilt Motorcraft 2150 2bbl carb. I pulled the plugs and they looked old but ok, no obvious issues. Did a compression check and 7 cylinders read @ 120-125 psi. #1 was @ 65psi and it held that pressure. Took the valve cover and watched the valves. The one closest to the grill seemed a little erratic at first but it's hard to be sure. No obvious play etc... I plan on pulling the push rod to see what it looks like in the next day or 2. I have new plugs, wires and dizzy cap/rotor on the way. Obvious concern is the low compression on the #1 cylinder. It doesn't burn any oil, no clicking/tapping/knocks etc... Just looking for some ideas of what I may be up against.
Thanks,
David
I've had an issue with valves sticking after getting my '76(302, dual exhaust, auto tranny)back on the road last year after having sat outside under a tarp for @ 10 years. Last year I removed the gas tanks and cleaned them. New fuel senders, pump and filters. It's ran a little rough when cold but would free up after she warmed up and it ran great. I did the paper at the tailpipe test and it sucked it in on both banks of the 302 when it ran rough. Drove it to the Cape this past weekend with no issues until I got off the highway. It started running rough again and then had idle issues and stalled. Stayed like that over the weekend and I tried freeing it up Sea Foam down the carb but that didn't change anything. I was able to drive it home. It seemed ok enough but still not 100%. Plugs and wires are @ 25 years old that I put in after the engine was rebuilt. Motor has @ 20k miles on it and it's basically stock and running newly rebuilt Motorcraft 2150 2bbl carb. I pulled the plugs and they looked old but ok, no obvious issues. Did a compression check and 7 cylinders read @ 120-125 psi. #1 was @ 65psi and it held that pressure. Took the valve cover and watched the valves. The one closest to the grill seemed a little erratic at first but it's hard to be sure. No obvious play etc... I plan on pulling the push rod to see what it looks like in the next day or 2. I have new plugs, wires and dizzy cap/rotor on the way. Obvious concern is the low compression on the #1 cylinder. It doesn't burn any oil, no clicking/tapping/knocks etc... Just looking for some ideas of what I may be up against.
Thanks,
David
