A lot depends on how long and what was done before the last time it ran. I
fired one up recently after 10 years of sitting.
1. Check in the air cleaner and down the carb for possible uninvited guests
or their living quarters. Mice can get in everywhere. In other areas, things
like frogs and lizards can, too. You don't really want to try sucking a
mouse nest down through your engine.
2. Change the oil. Use cheap no-name oil of the proper weight. Check the
level. 6 qt in a 5 qt system means something else got in, like coolant or
gas. That could mean you have a intake gasket leak or cracked block with
coolant or a bad fuel pump or carb with gas.
3. Pull the carb and rebuild. Most don't but this one was dried out and full
of crud. Best $12 spent. Change the fuel filter.
4. Spray or squirt a little oil in the spark plug holes if you can. It
isn't easy, so many don't. If you can't, mix a little gas and oil in a cup
and pour it down the carb. Two stroke oil works if you have it. This helps
soften any rust and gives a bit of lubrication for the first cranking.
5. Fresh or new battery. You want to have a full charge to crank the most
6. Check other fluids - transmission, brake, power steering, coolant.
7. Turn the engine over by hand to make sure it is free. It is best to get
a full cycle to be sure nothing is at the top of a cylinder that will cause
a problem. It is easier with the plugs out.
8. Check all the belts to be sure they are not ready to break.
9. Check hoses that they are not ready to break.
10. Fire it up. If it doesn't fire in about 10 seconds, stop cranking.
Give a shot of gas or starting fluid. Try again.
11. Have a heavy old blanket handy to smother any carb fire. A fire
extinguisher is nice, but unless it is Halon, it will make a terrible mess
to clean up, and you will have to clean it up immediately.
If it was running fine when last used, then there should be no real issues
with it starting now. The issues are light to heavy rust in some cylinders
from being open and things like blocks cranking if no stored with proper
coolant in freezing temperatures.
Vary the engine speed some, don't just leave it idle. Bring it up to 2000
or 3000 rpm occasionally for a few seconds. After you run a half hour,
change the oil. You were using this oil to mainly clean out any build up
and deposits that formed while sitting. I know some who substitute a quart
of transmission fluid for one quart of oil as the transmission fluid cleans
better. I also know some who go half and half, however, they often end up
with gasket leaks.
Vary this depending on the time the car sat.
Good luck and have fun.
Gotta a 79' 350 l82 that hasn't been started in several years.. want to
try to restart. Can you think of a process to use before applying juice to
the started (i.e.., light oil in cylinders, drain and refill old oil,