NUT4OBX

Just looking for confirmation that I am going about this engine unlock procedure correctly?
So far - All four plugs out and took off exhaust manifold.
Currently putting 50/50 ATF Acetone mix in upper spark plug holes. Does not take much and the mixture pours out bottom holes.
Putting mixture in exhaust manifold holes also. Again comes out smaller holes very quickly.
Pouring Seafoam down carburetor.
Car in neutral, clutch against floor using 19mm socket on flywheel to try and turn over engine.
I also rock the car. I have attached a boat trailer winch to the wall in the garage. I hook up to the front recovery hooks, put tension on the strap and then step on the strap to rock the car. Transmission is in fourth gear The car creeps forward ever so slowly but engine still locked. ( need to tighten the strap about every 100 rocks)
Realize patience is #1 technique. Think of taking off intake manifold.
Thanks

KansasCityREPU

iTrader: (9)

Let the ATF sit for a week. If it doesn't rock back and forth with gentle pressure, don't force it. Forcing it will for sure break a seal.

Maxwedge

iTrader: (1)

I understand your trying to get the engine to turn over, but...
Why are we rocking the whole car back and forth?? With straps and winches? What?

j9fd3s

iTrader: (3)

at least use 1st gear...

NUT4OBX

Appreciate the input. Total neophyte in terms of mechanical knowledge. If you told me I need a metric adjustable wrench, I would go look for one !
My thought process was that rocking the car back and forth in gear would be a way to get the engine to rotate. An alternative to pulling on a breaker bar. A British magazine article suggested fourth gear. I would have thought first gear too but as I have said - just learning. My little system allows me to rock the car by myself with little effort.

JaXLe

To make sure understand exactly what you are doing-
If you are attempting to turn the engine from the flywheel, you want the 'clutch against the floor'(IE.Wheels are disengaged from the engine).
If you are 'rocking the car', you want the 'clutch up'(Wheels engaged with engine) and In Gear.

As you and others have stated, patience is key, forcing it will break things you don't want to break. I would suggest mixtures as you have said, resoak/apply daily to keep it soaked for a week or more. Nothing crazy, just make sure daily 'parts' are soaking and replacing the volatiles in soaking mixtures that have evaporated.

From your comments- and for knowledge- Understanding transmission/Gears is important when rocking the car. Which gear you use results in how much 'force' you are applying to the engine when rocking the car. The lower the gear you are in, the more force you are applying with that little few inches of rocking movement. That is more force through your Drivetrain/Differential/Transmission to the stuck engine. You want the engine to break free and roll over, not some other component. I would only rock the car if I have been soaking the engine for a week or more, been trying to turn it at the flywheel daily and been unsuccessful in getting any movement at all.

Assuming its a 5 speed(5th gear is 'overdrive') start in 4th Gear rocking. Now the amount of movement the engine will receive from rocking a few inches in 4th gear is going to be pretty minute. You might not see the movement if you have gotten any rotation, assuming you are moving yourself pushing the strap and rocking. I would suggest making some index marks on the flywheel/engine, so you have a reference point for any movement/rotation. Rock the car in 4th for awhile or perhaps until its time to 'tighten your strap'. Check your flywheel/engine index marks for movement. Test engine for any rotation 'At the Flywheel'(clutch Disengaged). If no rotation/no change from the locked engine, Shift down a gear to 3rd gear to add a little more force, and another rocking cycle. Repeat the 'rotation/movement check', 'Flywheel method', and downshift until you get some engine rotation. The moment any measurable engine rotation is achieved, I would stop the rocking method. Get the engine rotating in full with soaking and flywheel rotation method as much as possible.

In the end, you want to apply force as directly as you can to the the part you want to break free, avoid force 'through' other parts as much as able, all while using the least force necessary to achieve..

NUT4OBX

That is a very thorough answer with a lot of good information.
Thanks for taking the time

Pele

iTrader: (28)

You should be able to get the engine to turn by rotating the eccentric (crank) shaft pulley. I've been successful with a good yank on the belts rather than rocking the car.
The engine is normally supposed to rotate in the CLOCKWISE direction when viewing the main pulley straight on from the nose of the car.

You may also try rotating the engine in the opposite direction in some foreign object (carbon, etc.) has wedged itself inside the engine.

Is she locked up completely tight or will it rotate at all even a few degrees?

Since you have the manifold off and spark plugs out, get yourself a little viewing mirror on a stick or a camera. Peek in through the exhaust ports and spark plug holes to check for debris or rust. Rotate a few degrees and check again.