Hi,
Last weekend I finished another PS-344 I bought defective a couple of months ago, originally intended
to be used to provide spares, but then I found a very good base with some parts damaged and some missing,
most of them available in my own stock.
Decided to build her up again, gave her a 3-arm clutch since she had none, an adjustable oil-pump
which was also missing and a replacement sprocket cover. Also needed a replacement cylindar
because the spark-plug thread was badly damaged. All of these parts I had in stock, though.
I intentionally did her plain run-off-the-mill to compare her to my ported PS-344 I presented here nearly a year ago (
https://opeforum.com/threads/the-of...ar-chainsaws-thread.694/page-229#post-1001751)
In front the run-off-the-mill one, lets call her #3, the ported one in the back (which is my #2 of my PS-344s).
I did cut several cuts with both of them using a 30 cm bar and a next to new Oregon Multicut half-chisel chain. Wood was oak, dry inside and about 35-40 cm in diameter so the bars were engaged at full length.
#3 was doing well, that is, succeed to cut thru the dry oak but slowed down repeatedly and needed to be lifted a little to have
her gain speed again. Just what you would expect from a 33 cc saw which is not intended nor built to do cuts like this in wood like this.
Very different the ported #2: She simply cut thru the wood. Period. No loss of speed, no hesitating just cutting straight forward.
It's an impressive result that makes me think of what a guy who knows what he does could achieve by porting a saw.
My attempts have been amateurish at best but when the outcome is that striking, what would a professional have gained?
Some pics of the competition's loser :
