I am trying to free up an engine to tear down for future parts but it is stuck bad.
I have PB Blastered it for a week now and it just wont budge. I am tipping the engine stand over trying.

Anyone have any tricks and tips for me???

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Chris'
Autobody
Restoration
Service

Coca-Cola. Yes, I'm serious; it is a solution of phosphoric acid that effectively eats rust.

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一期一会
Too many people who were born on third base actually believe they've hit a triple.

Sand the rust out of the bores as possible and re-spray. Flip the engine up-side-down, remove the oil pan and spray the Blaster around the bottom of the piston skirts.

Next, start with the lowest pistons, the ones with the crowns closest to the top deck and remove the rod caps. Find a solid piece of wood that you can get down into and onto the under-side of the piston's head. Get a Big Hammer and beat the piston/rod assembly out of the bore... get mean with it. spray-in more solvent as you work.
Repeat until all the slugs are out.
DD

Precisely why I don't have any in the fridge. Would beer work?

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Chris'
Autobody
Restoration
Service

Alright Doc. I'll give it a try. Thanks

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Chris'
Autobody
Restoration
Service

If you have access to air tools you can use the chisel hammer with the attachment that is like a tapered rod with rounded tip. Just turn the engine upside down, push the rounded tip to the underside of a piston and pull the trigger. The vibration will shake something loose.

I second the Coca-Cola trick. This is what I was taught in my high school auto shop class and I have seen Coke de-rust screws and nails. Go buy a 2-liter bottle and a funnel and fill up the piston bores with it. Let it soak for a few days and then put a breaker bar on the bolt in the crank snout and heave away.

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Casually looking for a Clifford hyperpak intake for cheap.

i dont think beer would work but ill take any beer your willing to toss at me for the most part.

I was told by an old tractor restorer about mixing Kerosene, WD-40, and Brake Fluid in equal quantities for this purpose.
I have not yet tried it.

You could always try Uric Acid..........

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Ed
64 Valiant 225 / 904 / 42:1 manual steering / 9" drum brakes

I just 'depistoned' the John Deere Block last week, and the pistons were stuck good in it. I used some 'gasket remover' and soaked the bores, then turned it upside down, pulled the mains and crank, then used a rod and BFH, and smacked them out the block...the bores couldn't get any worse with the rust, and the chrome top rings weren't too intact anyway.. they all came out, one was really stubborn though, and I thought I was going to split the piston....

Good Luck


-D.Idiot

Home Depot has a metal prep rust remover that's great for soaking rusty parts. I used it to get the rust out of the bores of a 383. I'm sure it helped disassembly, even though force was still required. It's not acidic either so it won't eat your clothes, hands or face.

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Joshua

Cars,

I am a locally famed parts squirrel so am curious why waste the effort on the pistons? Just pull everything else including the crank and cam and heave the block and pistons. There are more out there... The right iron oil pump is worth more effort than all the pistons put together.

rock
'64d100

Google "electrolytic derusting". Find or fabricate a plastic or plastic lined container large enough for the engine. A very large trash can or box lined with heavy plastic sheet would work. Fill the container with water to submerge the engine and mix in 1 tablespoonful of sodium carbonate (a/k/a "washing soda", found in the laundry soap aisle of the supermarket, or "pH increaser", found at pool/spa supply dealers). Put a scrap stel bar in the tank with the engine, but don't let them touch. Connect the negative clip from a battery charger to the engine. Connect the positive clip tot he steel bar *outside* of the liquid. Plug in the charger. In a few days reorient the bar and engine as required. The process works "line of sight", so reorient the parts until all surfaces have been derusted.

If you used any penetrating oil in the engine, you'll need to use a solvent like carb cleaner to remove most of the oil before derusting.

A member of the Mopar Mailing List www.moparmailinglist.com used this process to derust a big block engine a while back. iirc he left it in the bath for about 10 days.

Ken

Is the engine stand a four wheel model? Three wheel versions are very unstable and won't let you exert maximum torque on the motor before tipping.

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Casually looking for a Clifford hyperpak intake for cheap.