1) Check oil, ideally change it
2) charge or replace battery and clean terminals
3) clean spark plugs with a wire brush
4) put fuel in it
5) take the dusty ragg out the intake
6) check coolant level
7) try starting it
Won't run?
Check fuel is getting to the engine (there could be old stale fuel in the line so blow the lines out by taking the fuel feed off and squirting some fuel through into a bucket
Check for spark
When its running (if it's running ok) you then need to service it
You've changed the oil so do all the filters and other fluids and clean out the carb bowl
I dunno if ied bother, but my friend does. If you want to be safe. Disconect the spark plugs and install an oil pressure gauge and crank it to check for oil pressure first before trying to fire it.
Maybe clear the line of old fuel first really, and a good point made below take some oil (a tiny tiny amount) and put it in the bore via the spark plug hole. Don't over do it though you can't compress a liquid
Then you have a massive list of stuff todo before putting it on the road. It's good to get some oil pressure up first to protect the engine.
Also don't let her over heat, the thermostat will be stuck shut without a dout so change this and the coolant before running it for more than afew seconds
But the most important part, have fun, it's great starting engines that haven't ran in years and years :D
An oil change is a no-brainer. Before even turning it over I would remove the plugs and squirt PB Blaster in. Then turn over to distribute and leave overnight. This will help free up the rings. It may take months for the rings to fully expand after sitting long term. I personally saw this major jump in compression after months. You can look at the plugs and see what the condition of the engine is.
You should probably flush all the brake fluid, inspect the hoses as well as lines. Also the vacuum hoses on the engine. After you drive it you will know what comes next. You won't have that much trouble.
Been there done that is correct, rubber (everywhere is toast) get it started or at least figure out how much it will take to get it running - once running - replace everything made of rubber from brake lines to fuel lines to radiator hoses and tires. Brakes are toast too, brake fluid is hydroscopic and all the cylinders will need attention (brake shoes not so much).
Every oil seal in the thing will be dried up and will leak like a siv, the tires are shot, the brakes will need to be completely redone and new fluid put in. The cooling system will need to be drained and refilled
Squirt some oil into the cylinders b4 trying to start it. Put in new oil.
It will cost thousands to get that thing back on the road. It's just like the truck that's has been sitting in the salvage yard for 30 years, where that one should be. That old lady is crazy like a fox and just wants to save the $75 towing to get that hulk out of her garage.
