Mark
FIATFREAK
I have those same pistons in one of my engines. Are the actual pistons damaged?
I thought everyone might enjoy seeing some post-mortem photos of my original engine. After extended use of my trusty 5-lb sledge and some 2x4 scraps was able to pop the stuck #1 piston out of the block. What a mess. The other three came out relatively easily, but #2 also showed some signs of water intrusion.
Leaky head gasket that was allowed to sit? Rain water down an open cylinder head orifice at some point? Who knows, but someone must have tried to turn the engine over with the then-rusty water inside, blowing that junk all through the intake and exhaust before it seized up. Some of the rusty sludge even ended up inside the engine compartment. Not sure how anyone could sell a car like that saying "it just needs a battery and a fuel pump!" It did actually need both of those things, but also so, so much more. I will never, ever buy a non-runner again without verifying the engine at least turns over.
I googled the number stamped on the underside of the pistons and was directed here: https://www.kmotorshop.com/article-detail/view/en/116737/piston-93317620-kolbenschmidt-5881521. Kolbenschmidt pistons (I haven't heard of them, have any of you?). They're 0.4 overbore according to that site and the piston tops indicated a 4mm dome, 9.8:1 CR -- similar to the pistons in the car now. They'll make good paperweights I suppose. Maybe next winter when driving days are limited, I'll attempt a home rebuild of this engine as I'd first intended. Enjoy the photos...
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