Just bought this motor and got the heads off and the pistons don't move. Was wondering what people do to get them loose and not damage the walls or connecting rods.
WD40, let them soak overnight. possibility the main and/or rod bearings are froze up also. In which case you will have to take all the caps off.
Well there is decent rust in the cylinders so I'm pretty sure the rings are set. I have heard of using transmission fluid. Just seeing what everyone else does.
When I worked at the dealership we just used WD40
I have wd40 soaking them right now
I used PB Blaster
Quote from: Bowtie972 on January 30, 2012, 11:42:28 PM
I used PB Blaster
how long do you let it sit before you try getting it to move
Days. lol I actually managed to get all the main and rod caps off and got the crank out too. Then used a wooden handle of a hammer and started knocking the piston & rod assemblies back and forth. I had no luck trying to rotate the whole assembly over, thats why i decided to try to get the crank out and do em one at a time. It was working great, had 3 pistons to go and i slipped with the hammer and broke a piston skirt off. Game over. lol Just be careful tapping the pistons if you do it that way.
I have always used brake fluid let that soak for a day and then a day of trans fluid and they slide right out,
I guess alot depends on how long its been settin up and how bad the rust actually is.. Worst case scenario - Baby sledge and a steel rod about 2' long. They will come out. If ya bust holes in the tops of them by punchin them out from the bottom theyll come out quicker but dont hit the cylinder wall or you might be done with that motor right then and there. If theyre seized up real bad in the cylinders, then they cant be much good anyways, rings will be shot in no time even if you do get it goin. Knock 'em through and be done with that part. The cylinders will most likely have rust pits in them and need bored, so youll need a set of pistons that size anyways. ;D
On another note, it helps to think of how much time and money you ACTUALLY end up spending on a project:
1) You can spend more time and money now and enjoy the use of something in tip top shape that performs well and dependably for a long time or,
2) You can get it goin quick but it may nickel and dime you in the form of excessive oil consumption, low performance, mysterious miss, etc. How much is your time worth, especially during those moments when you really dont have the time to fool with that motor but it wants to act up anyways? And how much are you gonna spend on oil instead of a gasket? Sometimes ya gotta kinda think about this stuff ==roll
best thing i've found so far is called deep creep bud, used tranny fluid, brake fluid, wd40 and all kinds of other stuff, but that's worked best for me and after a couple days i would just try going back and forth with the flywheel and they always came loose, longest took a week, if ya need a cylinder hone lemme know
Well I plan on boring it over anyways but I need to keep the crankshaft and rods to reuse
what is the motor?
Ford 460
Quote from: ice87 on January 31, 2012, 03:43:16 AM
Well I plan on boring it over anyways but I need to keep the crankshaft and rods to reuse
Then just knock them right on through there - bring it over this weekend, Ill show ya how ;D
Well I'm letting them sit right now in pb blaster for a couple days before I try again
on mine I always use 50/50 mix of trans fluid and kerosen or straight up diesel fuel let it soak for about 2-3 days then if you still have only one or two stuck you can use a piece of 2x2 on the piston and hit that so you don't screw up the cylinder walls
That's what I'm afraid of is messing up the cylinder walls
pb blaster, let it soak and smack the top of pistons with rubber mallot, just did this to a 340 and work out well