Hi all, This is my first posting. I have a 1977 F100, inline 6. She was running fine until recently. But now she runs real rough, and there is a lot of smoke coming out the tail pipe. It's darker in color, so I don't think it's water vapor. Anyone have any ideas what could be the problem? Do I have a blown head gasket? How can I test? Thanks much for any advice.
Sounds like to much fuel. Check air intake for restriction and filter condition, check for correct choke operation, carb float level.
Tony 1994 F250 XLT ext. cab,long bed,7.3 IDI factory turbo,4x4,manual hubs,E4OD,4.10 gears, K&N air filter,Hayden 679 trans. cooler,PSD oil filter,coolant filter and vac. operated heater shut off valve, manual glowplugs,Autometer water temp.,trans. temp., and pyro in three guage pillar pod, Autometer mechanical oil pressure under dash with twin vac/boost guages,TruxPort tonneau cover,straight piped,189,000 miles and counting. 88 Ranger 2.0, 5 speed,147,000 mi.,bought new.NC Chapter Member,IUE Retired, NRA Life Member,USMC.
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