Technical Getting a piston out of a block

Hi All,

This is embarr***ing! I am dis***embling a Ford 429 that has been sitting outside for a couple of years. Have removed seven of the pistons and rods. The eight on was frozen in the block. I got the crankshaft to turn so I turned it so the piston was straight up. I removed the crankshaft so all that was left was the piston and rod. Turned the block over and since the piston would not come out through the top of the block I proceeded to drive the piston through the block toward where the crankshaft would have been. Now the problem, the piston will not clear and there is no way to get it lined up to go back into the cylinder. Any ideas on how to get the piston out?

Thanks

 

Is the piston trash or are you going all new( best bet)Remove all the rings it should go up. Use a torch cut it up!

 

You mean it's clear of the bore at bottom, but you can't get it out of the crankshaft gallery?

 

To bad your not closer to Miami Fla.,,,I have comeplet, 2 FE Ford big blocks 4 sale cheep $600 for the pair.{ both }not MEL but fit same Engine bay, If picked up here in Miami.

You'll likely need to kill the piston completly to get it out.

 

What's preventing it going back in? The rings popped out of the grooves? If so, you can probably break the two top rings, and carefully pry the oil ring rails, then the spacer, out. Seems to me that once the rings are off, it should go back up just fine.

And Dana, I don't know how FE blocks will help a 429, it's a different motor

 

maybe he was thinking about a 428, iirc those are FE

 

If you are not saving the piston, "drill baby drill" until it falls apart.

 

BFH

jack vines

 

The last stuck one I did we melted the top of the piston out.
Remove the rings you can reach and see if it can be pushed back in. If not ….
I’d probably nibble that piston down with a blue wrench until it was small enough to fall out the bottom.

 

If you have a plasma torch it cuts aluminum real easy without danger of hurting other parts. If you can cut most of the skirt out the remainder might tip over enough to fall out. Get a can of anti spatter spay at the welding supply store and thoroughly spray all surrounding surfaces. Hot sparks will not stick and cause problems later. Clean well with a wire brush when done.

 

My flattie had stuck pistons. I drilled large holes in the top of the piston and caved it in on itself. Once I did that it released from the cylinder wall and was able to be removed. I had planned on boring it out anyway so that took care of any cylinder wall damage.

 

Angle grinder/cut off wheel.

 

Body saw
https://www.harborfreight.com/elect...8-2WArgIsW-A9oX71NSdMpKQ7dRCyUFIaAvcgEALw_wcB

 

Get the rings out (if that's the problem) and turn the block upside-down so the piston is vertical. Fill the bottom of the piston with dry ice and see if it will shrink enough for you to push it out.
Good luck!

 

Get a bigger hammer and keep beatin' on it, it'll go...

 

Liquify...it can't get stuck if it'll pour!

 

Plasma wrench. Fast, effective, fun

 

Dynamite it out! 5 sticks should do it!

 

If you plasma or use a torch be carefull you can poke a hole in the cylinder in a heart beat.

 

I prefer c4

 

Good call, it is a ford after all.

 

Plasteek...

 

Any of the above mentioned methods will work just be careful with the BFH and not damage anything but the piston.

C4 is good but TOVEX is better.

 

If he was careful, he wouldn't be in this situation. ;>)

jack vines

 

Now with all the words like c4, dynamite etc you know this post was immediately flagged by computers now prepare for the black helicopters and men in black suits !!



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is it just a ridge keeping it from coming out the top? then remove or break rings and go back up with it.

 

Maybe the OP will come back in another year or so and update. Profile shows 16? Posts since 2010

 

They know how to find me. They have been here before.

 

Maybe he has been busy. Or maybe everything was fine until now.