Squish too tight?

[old guy]

So, Im putting together a Husky 351 with a new 346ne P&C, with the ringless piston on the rod I bolted the gasketless cyl. down with two bolts to check squish, it is coming up .017-.018. Does anyone think I can get by with this?

John

 

[exSW]

I have. So far.

 

[David Young]

on a 50 cc saw I would go as low as 15-16 thou.

 

[Warped5]

I'd measure it with the ring on the piston, though.

 

[junkman]

I think .017-.023 are what to shoot for

 

[redtractor]

I'd measure it with the ring on the piston, though.

?

 

[Moparmyway]

on a 50 cc saw I would go as low as 15-16 thou.

Been running 90cc saws with .016

 

[Hedgerow]

So, Im putting together a Husky 351 with a new 346ne P&C, with the ringless piston on the rod I bolted the gasketless cyl. down with two bolts to check squish, it is coming up .017-.018. Does anyone think I can get by with this?

John

That's plenty on the little fella, John. About ideal actually.

 

[old guy]

I'm likin these answers, thanks guys.
Most of the Huskys come out at .021- .022, but this one is a little tighter. Now I'm just waiting for the 372 metal boot clamp to get here.

John

 

[Hedgerow]

I'm likin these answers, thanks guys.
Most of the Huskys come out at .021- .022, but this one is a little tighter. Now I'm just waiting for the 372 metal boot clamp to get here.

John

You gonna be runnin it at the rush city races in July?

 

[old guy]

Hey, Matt, thanks for the info., we were posting at the same time. Looking forward to seeing you in July.
It was a shame to tear down this 351, it is in fine shape, it started 2 pulls cold 3 days in a row, the ring gap is a tight .008 but that open port cyl. just ain't no 346.

John

 

[old guy]

Posting at the same time again, oh yeah I'll be there. (edit) only if it's faster than my other one.

John

 

[Hedgerow]

Hey, Matt, thanks for the info., we were posting at the same time. Looking forward to seeing you in July.
It was a shame to tear down this 351, it is in fine shape, it started 2 pulls cold 3 days in a row, the ring gap is a tight .008 but that open port cyl. just ain't no 346.

John

They sure aren't, but you'll love the 346NE jug on there.
Don't raise the exhaust on it, and keep the in and out as large and free as you can stand.

 

[Redfin]

Im at .0165 on a 661 if it makes you feel safer.

 

[drf256]

What did you use to get that measurement?

 

[Hedgerow]

What did you use to get that measurement?

A flux capacitor...
Pfffttt.. Everybody's using em' nowadays.

 

[jockeydeuce]

Like others have said, you'll be fine on a 50cc saw.....My 044 is at .017 and has been run hard for over 5 years now.

 

[Motorhead]

I've got .018 on my 272,No problems so far.

 

[old guy]

Well guys, I couldn't make myself put a dremmel to that new ne cyl. so it went together with just a gasket delete & a muff mod.
Squish is .018, started right up & ran great, no problems, had to cut back on the idle speed some. Next day started on three pulls, still running good. It came with an 18" 041 bar on it with a chain I didn't like so it got a 16" ko95 with a semi chis. .325, only chain I had loose at the moment, I put a good sharp on it and after warming the saw up and shutting it down a couple of times I took it out to what's left of my elm log & let er eat, even with the semi chain it does what 346s do, put a smile on my face. Now I need to see whether it's faster than my other one, the slow one goes off to see the wizzard.

John

 

[DSS]

?

Keep the piston level in the cylinder