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Discussion Starter · #1 ·
I'll try to make this short and to the point. I had my cylinders bored to .070" over. Just a quick fix for now. I left the heads alone. I was about 50 miles short of my 500 mile oil change, and she locks up going down the highway. Mind you, we've had 100 degree weather here for the last couple of weeks. Not the greatest conditions to break the rings in. Upon tear down. My rear piston is seized to the rod, and possibly the rod to the crank as I can't get the piston to come up enough to remove the pin. The thing is, after looking at the front piston i noticed damage from the pistons hitting each other, and the piston skirt was hitting the flywheel. I compare the piston with the ones that were pulled recently. The old ones were clearanced on the forward and rear edges of the skirts. And my new set was not. You can see the two in the pics. Notice the damage on the new piston. My question is why were the new pistons not clearanced? I assuming the pistons hitting the flywheels are a result of them hitting each other. All of the measurements were identical on the new and old pistons minus the relief. Why is this not mentioned in my clymer? If this is a possible issue, why didn't the shop mentioned it to me? The lower end has to come apart to be able to remove the piston. There are also shavings from this damage in my cases, which makes me wonder if one of my oil passages got blocked.
<img src=http://i1140.photobucket.com/albums/n574/raynoslo/new/IMAG0234.jpg border=0 alt=>

<img src=http://i1140.photobucket.com/albums/n574/raynoslo/new/IMAG0235.jpg border=0 alt=>
 

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Discussion Starter · #7 ·
I don't see the connection of the pistons causing the rod to lock up on the pin..

Granted when a blow-up happens it's a chain of events....But that would be really odd for the rod bearings to lock up....
My guess is that the shavings form the pistons hitting eachother, and the flywheels blocked an oil passage causing it to overheat and then well, go to shit.
 
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