Gapping oil scraper intermediate ring
#1
Rennlist Member
Thread Starter
Gapping oil scraper intermediate ring
My set of piston rings came with the 3-piece oil scraper, so there's 2 thin rings (I gapped to 25 thou) and a "spring" scraper sandwiched between them. My question concerns the correct way to gap this, if I need to at all...it seems it would compress into itself as it heats up. I have a normal ring grinder and don't want to mess this up.
#2
No need to gap the spring. Just the two thin rings. The spring should shorten on its own. Be careful when installing the pistons into the block. I would invest in a better spring compressor than the cheap ones from auto parts stores or sears. A tapered one to fit 100.0mm would be ideal, or you can get an adjustable tapered one that will still work. I shattered an oil scraper ring in the bore with the cheap ring compressor and it gouged my cylinder.
https://www.summitracing.com/parts/w...0000/overview/
https://www.summitracing.com/parts/w...0000/overview/