toronado72_72

I just got a 72 toronado fornext to nothing, trying to get it running. it hasnt run since 2009. 455 is locked up. been soaking the cylinders with pb blaster for couple days and trying to crank it from the front crankshaft nut with a breaker bar and in between bumping the starter. no go yet. when i took plugs out 2 cylinders had coolsnt in the wells. any suggestions?

svnt442

At this point I'd start tearing it down. If the rings are rusted to the cylinder walls you might be in a situation where an overbore wouldn't fix the issue. There is no way to really know until you get the heads off. To do a proper inspection I would want it on a stand so it can be rolled over and get the pan off.

deadeyejedi

I agree with Randy sometimes you get lucky with them ,but you could be doing more harm than good forcing it .The car may have been put away due to blown head gaskets and who knows what else.Pulling the motor and getting a good assessment of it's condition is a good idea. what are your plans for the car?

oldcutlass

I agree with Randy, I'd pull the heads to start with.

matt69olds

Once you get the heads off, get a piece of solid wood and smack the piston tops at the top and bottom of the piston bore. The idea is to get the piston to rock, that will allow penetrating oil around the rings. If that doesn’t work, a air hammer with a chisel bit is the next move. Don’t worry about trying to save the pistons, and this point the corrosion to the piston and bore will be too bad to use. The pistons will be junk, and the block will need bored

wr1970

Air hammer? Once you get head off engine on a engine stand. Bad ideal on air hammer i have removed many stuck pistons . Just remove rod cap bump with wood rod side of piston and top it will come loose use pb blaster as you move it back and forth.

classicmuscle442

Not sure how an air hammer would hurt anything at this point, as stated piston are junk anyway and block may be borderline. Have used a torch to cut out center of piston before getting piston to move enough to disassemble.

wr1970

How do you know? You have a crystal ball? Who said the block is junk? Nobody has seen engine except the op.

matt69olds

Unless the block was full of water and froze, I’m guessing the block will be usable. As for the pistons, air hammer, torch, drill, whatever it takes to get them out.

wr1970

And I say your method should be as a last resort. I have done these type of removals since I was a kid and never done it your way. My dad owned a salvage yard back in the day motors were torn apart. They wouldn't accept them whole or short block at foundries to much weight and to big to go through the charging floor door in the furnace. Ask me how I know.

coppercutlass

This is just a thought and its way out there. but maybe buy 8 cans of freeze off and spray them into the cylinders 1 can per cylinder. It might be enough for things to shrink and get the PB blaster into the stuck areas . Again just an out of the box idea.

wr1970

Copper where do you buy that stuff at? Never heard of freeze off. That might work that is a ideal out of the box .😁

coppercutlass

I have never used it but see it all the time at the parts store CRC makes it

svnt442

wr1970

wr1970

I hate this word changing app. Next thing you know we will be like ROP and have tap a Talk.😠 And and Camaro back ground!😣