How Can I Fix These Pistons?
 

I was noticing that 3 of my spark plugs would foul a little, so I pulled the pistons out of the bores to see what was going on. Do these pistons look like they can be fixed? I was thinking maybe bonding some aluminum sheet metal onto the skirts and buying some special rings of some kind to make them seal again. Should I oil the piston pins with anything special before I put them back in? What type of rings do I need with these pistons after I fix them? I’m thinking a good bead blast will clean them up, but what do I do about the ring grooves…? Will JBWeld work? The third one shown doesn't have a top ring anymore. Will it work as a single-ring piston?

After I fix them, I was thinking I should cut down on the 300-horse shot of nitrous, 32 pounds of boost and back off the timing a little. Any other suggestions? If all else fails, I'll put them on eBay as original Corvette pistons - watch for the ad.

http://i183.photobucket.com/albums/x...1/IMG_0600.jpg

http://i183.photobucket.com/albums/x...1/IMG_0599.jpg

http://i183.photobucket.com/albums/x...1/IMG_0598.jpg

:rofl:
Does the humor mitigate the pain?

I didn't show a forth piston, because there wasn't anything left to take a picture of. Since the piston wasn't there, the plug wasn't fouling, so it must be good. I'll just leave that bore without a piston, 'cause that seemed to work pretty good.

You could try Zaino....well perhaps not. What engine problem led to that catastrophic failure?

Wow:eek::eek:
I'm sure it will buff out :leaving:

shmoky

I'm thinkin some kind of cold weld epoxy & then use only snake oil... should be just fine!

I would try some of the low temp potmetal filler rod to get the shape back then file them smooth. Use a hacksaw blade to cut new ring grooves and your good to go!:cheers:

There's something wrong with those pistons?:leaving:

You may need some 30 weight oil and some ball bearings! And get some antifreeze. preferably Prestone,...........no make that Quaker State.
http://skyjude.users.btopenworld.com...s/fletch04.jpg

lars,

If you did not pull it apart 'Mechanic in the can" would have worked. Now you are SOL

they say there are 1001 uses for duct tape, i think you found 1002.

JB Weld and silicone sealant can do wonders on about anything. Cuzin Bubba swears by 'em. :yesnod:

what does the block look like? I would bet that is toast.

Just try some of that engine restore stuff

Do the numbers match? Could be originals, worth a lot of money if restored? ;-)

I'm pretty sure some Seafoam would've fixed that:rofl:.Try some bondo and slap them back on.

:leaving:

Should have used slick 50 :D

I think I see an image of Jesus in the second pic. They will be flocking to you.I would charge maybe $1.00 a person,and you could set up a lemonade stand on the side.Setup a non-profit organization and become tax exempt.:grouphug: sign me up.

Hi Lars,
Can a poorly re-built Q-Jet cause that?
Regards,
Alan

Put them back in the block, wet the whole thing down with a hose and stick the whole mess in the dryer... they'll "shrink fit" themselves and be good as new!