I have a 1977 Chrysler 120, and the other day after battling a "no-idle" for a about an hour we finally got it to run, and realized that the motor was not running on all cylinders(only two to be more specific, who knew you wouldn't be able to hear such a thing) ... 
After trying to clean the motor out by taking it for a short ride, we cleaned the spark plugs, and then we got it to run on three(this for some reason we could hear better). It seems to be flooded out on these two cylinders. A friend of mine told me that I might need to "drain the crankcase of all the old junk(gas and oil) that's in there." Is this suggestable? Has anyone ever done this? Also I am definitely going to buy a manual, what brand is the most specific? One last question, I have these spark plugs that are flat(no gap), are these the right ones? I heard they tend to foul out. Can I go with regular plugs or is there not enough clearance? ANY help would be great!! FYI after the third cylinder got going we took it for a ride, and then the forth cylinder started to fire at a higher RPM.
After trying to clean the motor out by taking it for a short ride, we cleaned the spark plugs, and then we got it to run on three(this for some reason we could hear better). It seems to be flooded out on these two cylinders. A friend of mine told me that I might need to "drain the crankcase of all the old junk(gas and oil) that's in there." Is this suggestable? Has anyone ever done this? Also I am definitely going to buy a manual, what brand is the most specific? One last question, I have these spark plugs that are flat(no gap), are these the right ones? I heard they tend to foul out. Can I go with regular plugs or is there not enough clearance? ANY help would be great!! FYI after the third cylinder got going we took it for a ride, and then the forth cylinder started to fire at a higher RPM. 
