I just replaced the oil tank vent on my 288 and noticed this pattern in the ext port take a look
I really don't know Jonathon I hope someone can help I plan on running it just curious. I do apologize for posting this over here.
Mike I went back and looked it was killing me no step that I can see or feel got me puzzledIs there a slight step in the port?
Thank you Mike.I'll try to take a look in the exhaust port of a couple saws and see if it's got a pattern like that before it completely soot up.
Hey pops I widened the ext only smoothed and polished the roof and floor.Looks like the it was opened up closest to the piston side and and not smoothed out till you get to the exhaust. Kinda like a river when you see the water swirling or calm on the back side of a bend or rock. Kinda like this ) ( vs \ /. This is allowing the soot to lay on the outer sides of the port instead of the middle where the velosity is higher.
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