I recently purchased a stock 30 tudor that was supposed to be running 20+ years ago when it was parked in the garage. The motor was locked up when I checked. But today just for the hell of it I gave it a pretty good push and it moved. It dint move much as I didnt want to gouge the cylinders, so I stopped. What would be the best way to proceed? My thoughts are maybe penetrating oil in the cylinders over night??? It has a little rust on the outside of the block like coolant had seeped from the head gasket. Should I just pull the head first? I just dont want to damage something for no good reason. Any advice would be great. Thanks, Adam P.S. I don't want to s**** the banger if I dont have to. This car is a clean original that deserves a chance at staying together.
Could be a ring was stuck, or just a valve stuck on the seat or in the guide. Why not invest in a gasket set, pull the head, side cover and pan and check it out. some of the seeping coolant may have found its way to a cylinder. Pan is probably caked, as well as the oil oump pickup and the valve chamber. With the head off, it will be a lot easier to deal with any seized stuff.
I'd soak it good with "P" oil then pull the head. It's a snap in an "A". With the head off you can then see 50% of the working parts. If the innards look decent then gently tap on the top of each piston then soak it again. If it's as rusty inside as it is outside pull it and soak it in a mol***es dip. It'll clean up.
Soak it as long as you can stand to let it sit. Some swear by 50/50 mmo and ATF. I remember seeing this one years ago. Banger head puller. http://www.jalopyjournal.com/forum/showthread.php?t=216035&highlight=banger+head+puller
The Banger head puller mentioned above is a great idea. Also remeber to soak the studs with penetrating oil for a while. maybe give them a whack with a hammer to loosen them or maybe give them some heat. Read up on removing stubborn heads before you start this process. Those head studs are very happy where they are and like to break at the block. Good Luck and congrats on the new sedan!!
I agree with all the above. You might want to pull the radiator and send it to a shop, while you're soaking the engine. Also, go to the monthly "Banger" thread on the HAMB. That way, you won't miss anything. Especially if you ask questions.
I would pull the plugs and use a mix of desiel and penetrate in the hole let it sit. Work on getting the head off. Once off soak some more, pistons, valves, everything. Then if you can not still get it loose I have used a piston hammer on the top of the pisrons with another person with a braker bar and socket on the crank bolt. Apply pressure with the breaker and hit the pistons. If it is stuck you are going to have to doing machining no matter what you do.
I just went through this with a 31 that the motor was rebuilt, test fired and then went into storage for twenty years. The motor had anti freeze in it that leaked down the dist hole and into the oil pump. Rust had formed around the dist shaft, cam and oil pump. Do yourself a favor and pull the head, side cover and pan like others have mentioned. It didn't take long to clean up the little rust I found and probably saved a good but old rebuild.