Anyone recognize this porting?

[jughead500]

Looks like a 181 281 and 288 will work.

 

[Paragon Builder]

Yes I think it is a 288 on there now. Best place to buy one? Best brand?

 

[jughead500]

Look for the meteor kit.the run around $150.made in italy instead of china.

 

[Paragon Builder]

Ok great! Thanks!!

 

[jughead500]

Or good original cylinder with a meteor piston.

 

[Gypo Logger]

In defense of Al, it is not a Mac...

Lol. Haven't seen Al since wood junkies gtg.

 

[nmurph]

Or good original cylinder with a meteor piston.

The best choice.

 

[Paragon Builder]

Why is it the best choice?

 

[nmurph]

Used OEM cylinder with a Meteor piston.

 

[nmurph]

Because there won't be any potential quality issues, performance will be what it should be, and it will likely be cheaper than a decent aftermarket P/C.

 

[AKDoug]

Remove the crank seals and flush it out really good. Put in new crank seals. There was lots of material moving around in there.

 

[towingace]

I'm surprised it's holding 150psi. Is that with a dry cylinder?

 

[jughead500]

Fingernail digs in. I was going to use my cylinder hone but it looks like they won't work on a 2 stroke. It would catch on the porting. I'm new to 2 strokes.... Working on them anyways.

If your using a 3 finger stone hone they won't work.some use flex hones but are a little aggressive. Me,well i along with others have switched to the wigglesworth treatment.it just consists of a rol-loc disc holder that is turned down to a smaller diameter with a longer shaft.you use this to hone the cylinders with a scotchbrite pad.just have to chuck it up in a drill.with the low rpm and the less aggressive scotch brite you can run it a pretty good amount without risking the plating.

 

[Paragon Builder]

I'm surprised it's holding 150psi. Is that with a dry cylinder?

Not sure what you mean by dry cylinder? I checked it right before I pulled the cylinder. It had not been run in about 2 weeks...

 

[nmurph]

Not sure what you mean by dry cylinder? I checked it right before I pulled the cylinder. It had not been run in about 2 weeks...

That should give you a pretty good reading if you pull it until it stops climbing and you have the correct tester.

 

[towingace]

Not sure what you mean by dry cylinder? I checked it right before I pulled the cylinder. It had not been run in about 2 weeks...

Sorry for the confusion, it's a common practice to squirt some extra oil in the cylinder to seal up worn piston,cylinder,rings, etc. to gain a higher compression reading. If that hasn't been done, then it's considered a dry cylinder. A saw that's been sitting a very long time will be much dryer than one that's been sitting only a couple weeks.

 

[RBurtcher]

I think I got this figured out...

Helen Keller?

 

[7hpjim]

I think I got this figured out...
Tourette syndrome Teddy did that one!!!

 

[Paragon Builder]

So I think I know why this cylinder is scored. I picked up a hutzl kit and bolted it on. When I tried to bolt the carb up I couldn't start the bolts. I couldn't get the intake low enough to line up. So I thought the casting was bad. I put the old jug back on and same thing. The only way I could get the bolts started was to loosen the jug first. So the carb was not seated and must have been sucking air. I modified the rubber collar that the intake block sits in and then everything lined up nice.

 

[Paragon Builder]

I didn't use a base gasket and my squish is at .031. And my compression is at 200 before running it. Not bad for a stock chinese kit.