Hello everyone, please help shed some light on the following event.
I removed the carb head from a running, LC (pistons are 1.5mm below deck at TDC), 205 block engine and I was amazed to find out that the inlet valves were touching the pistons with their edge that is closest to the spark plug hole.
Contact area lengt of 3-4 mm, caused at least a 1mm deep punch in each and every piston.
That engine was running, I personally drove it before taking it apart.
I thought that the pintos are non-interference engines, and that valves can't touch the pistons no matter what.
What am I missing? Is it possible that I have a machined head/block?
I measured the head width to 91mm, and as I mentioned, pistons are 1.5mm below deck at TDC.
What is going on?
Let me know if I need to post some pictures of this to be clearer.
Any input would be greatly appreciated.
Thanks in advance,
Matthew.
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