I've started tinkering on the PM55 while waiting on parts for my other saws, and now have it down to the powerhead. It's very dirty with lots of bits to replace, including the sparkplug wire. It's heavily carboned up as well, so I'm going to take it down further to clean and replace the seals too since I've got a set.
Can anyone give me the dimensions of the P/N 92517 rings? I recently got a set off ebay locally, thought I'd put them in the PM55 if/when needed, but the currently installed rings appear thicker through the exhaust port (will get the calipers on them when apart).
I've measured the replacement rings' thickness and width as about 1.2 mm (~0.047 in.) and 1.75 mm respectively.
I'm also adding a pic of the current rings below.
Can anyone give me the dimensions of the P/N 92517 rings? I recently got a set off ebay locally, thought I'd put them in the PM55 if/when needed, but the currently installed rings appear thicker through the exhaust port (will get the calipers on them when apart).
I've measured the replacement rings' thickness and width as about 1.2 mm (~0.047 in.) and 1.75 mm respectively.
I'm also adding a pic of the current rings below.