661 R&D

[Adirondackstihl]

 

[jmssaws]

I'm not seeing any advantage to the husky piston over the oem.

New piston is coming

 

[Adirondackstihl]

That 661 piston looks damn rough

 

[jmssaws]

That 661 piston looks damn rough

Not reusing that one. I got a new one coming

 

[Adirondackstihl]

Not reusing that one. I got a new one coming

I know
I just can't believe how nasty it looks.
Looks like it came outta a 10yr old saw

 

[jmssaws]

I know
I just can't believe how nasty it looks.
Looks like it came outta a 10yr old saw

The loose locating pin messed it up good and it ran with the ring ends in the exhaust port for so long it ate the plating.

I'm still baffled why it didn't hang

 

[Coltont]

The loose locating pin messed it up good and it ran with the ring ends in the exhaust port for so long it ate the plating.

I'm still baffled why it didn't hang

A husky would have laid down and soiled it's pants.

 

[jmssaws]

A husky would have laid down and soiled it's pants.

I'm afraid that might be true but this stihl was about to

 

[Coltont]

I'm afraid that might be true but this stihl was about to

They all break. No one brand is the best. Some are just better than others.

 

[jmssaws]

For sure.
If you use it eventually it will break.
This saw has a few miles on it but us nowhere near shot.

 

[Coltont]

For sure.
If you use it eventually it will break.
This saw has a few miles on it but us nowhere near shot.

I bought a 661 as soon as they were available. It had every problem one could have have for 8 months or so cutting timber every day. Eventually my dealer sent it back cause they simply couldn't figure out what was wrong with it. They gave me a new saw and it's been completely flawless. Redfin ported it for me a few months back and it's a real work horse now. Running at it 40:1 and it hasn't missed a beat.

 

[mdavlee]

A guy in Knoxville had a 3120 someone put the piston in backwards. It never hung but was wearing it out funny there. A little raising fixed it. That one there needs replated. How much is a 661 kit?

 

[Redfin]

I'm not seeing any advantage to the husky piston over the oem.

New piston is coming

I dont really see where the 395 would gain either with that jug J. You dont have to drop the jug that far to make up for the crown difference and the intake isnt lacking with these jugs either.

 

[MustangMike]

I think Randy tested my 461 with and without it ,did not notice anything different on power by removing it .Someone brought up it was there to lube the pin bearing or cool the piston ,i cant remember now .

Randy said there was a service bulletin, that it cooled the piston. Strange looking thing, but very light. Must also function as a crank stuffer!

 

[angelo c]

Yeah, I'm just sayin it would be luck of the draw, you never know what your gunna get with a 66

25 or so years of the same basic chassis should bring about some "changes" no ?
Lots of different jug manufacturers as well .
Pretty stout "brick chit house " bottom end and a productive feller saw....don't know if it was ever meant to be "hot rodded" on ...

Yea I got a bromance wit muh O-6-6

 

[Deets066]

25 or so years of the same basic chassis should bring about some "changes" no ?
Lots of different jug manufacturers as well .
Pretty stout "brick chit house " bottom end and a productive feller saw....don't know if it was ever meant to be "hot rodded" on ...

Yea I got a bromance wit muh O-6-6

Oh I like mine too,

 

[jmssaws]

I have 2 ks red light cylinders that are only on the first year 066
One is 98 117 77
the other is 93 119 83
I have a mahle decomp late 066 cylinder that 99.5 119 77 and the best I've ever seen.

 

[jmssaws]

Oh I like mine too,

View attachment 35771

Whats a 066?

 

[Frank bierce]

Great thread Jason. Definitely be interesting to see what a difference you will make!! Have a little work to do on my 066. Haven't taken the time to research it much yet....but getting intermittent spark. Ran great one day...took it out of the truck the next weekend, and poof...had a buddy that was very impressed with it while it was running properly...but rich.

 

[leadfarmer]

The loose locating pin messed it up good and it ran with the ring ends in the exhaust port for so long it ate the plating.

I'm still baffled why it didn't hang

It's a stihl thing.....people just won't understand[emoji15]