i need comforting awnsers

[robznob11]

well i got her fired up today but im worried, she busted right off, has 45psi oil at idle and is smooth, buttt i let it idle for quit a while wating for the termistat to open it never did my temp sensor is in the upper hose so i dont know how hot it got but the engine changed sound so i killed it. it fires right up but im concerned i think ill put a new stat in it for safety but i wondering if i alread hurt the motor since the idle changed and it sounded like it was struggling a bit, of chorse i may be overworked caus it has been sitting 3 years it could have been, an injector, or anything my mechanic friend said it could take as long a 15 min for it to open it ran a good 15 min with no circulation, i dont even know how much coolant is in the block i put 3/4 gal antifreese and 3/4 gal water in the expansion tank i left the lid off to add more as it went down but it never did

[Beatdown Z]

Probably air in the system.

[RedHeartbeat]

disconnect the air bleed hose on the front of the cylinder head and leave it off until you get a steady flow of coolant out of it with the engine off. Park it on a hill with the front of the truck higher or jack it up so that the air bubble moves to the front of the engine.

[robznob11]

i was looking at this a few min ago it appears that the thermostat is in the suction line does that mean when i filled the expansion tank up the coolant all went into the radiator and i ran the engine dry. im relly hopeing i did not gall the pistons or some crap. i did not relly pay much attention to that i just assumed that by filling the bottle where the cap is i was also filling the block. you know you can get in a hurry after you wait 10 years. I know the computer monoters the temp but i don't know what it does to compensate for a over heating engine. It did not sound bad just the rpms changed and acted like it was fixing to die. I killed it it fired back up and idled fine. my luck though i warped a head or something and wont find out till i get coolant in it. I figured ill let it cool over night then acces the issue cold water and hot metal don't mix lol