DeCaff2007
I'm Awesome
To be clear, have you put the rings by themselves down in the bore to verify fitment and end gap?
Yes, to the letter, just like the mook in this video:
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Type? I didn't know there is more than one.If the end gaps are correct as by stuffing them in cylinders to check.
What type of ring compressor are you using? May we see it? And a photo of it in use.
First idea is the ring compressor is not fully seating the rings in the lands, an edge is exposed, and clunk.
You have done piston install, right?
Plenty of engine oil on cylinder walls and piston and rings?
Without observing your install, and technique that's my thoughts.
My ring compressor: Notice the locking action is different than in the vid. The compressor in the vid is from Harbor Freight. I sprung 2 of them before making the 45 minute drive to borrow this one from my FIL.
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As for a ring not fully seating in the piston grooves... my Wife tried compressing the bottom ring by hand and she tried pointing out how she sees an edge at the bottom. I thought perhaps she just wasn't strong enough to compress the ring and that the tool should have compensated for that. I'll check again today.
Yes, LoL, I've installed pistons before.