262XP Day

[cali6construction9]

Doming the piston?

stihl 026, husky 266xp, mac 610, efco 132s, craftsman 54cc, mac 1635, Miller deltaweld 300

 

[Paragon Builder]

What is a pop up?

stihl 026, husky 266xp, mac 610, efco 132s, craftsman 54cc, mac 1635, Miller deltaweld 300

http://www.arboristsite.com/communi...atalk1419694031-675285-jpg.389778/?embedded=1
This is a welded popup by the guy that had like 230psi. It just protrudes into the combustion chamber. He ended up cutting it down and cleaning it up.

 

[cali6construction9]

It's just sending me to the unread timeline..

stihl 026, husky 266xp, mac 610, efco 132s, craftsman 54cc, mac 1635, Miller deltaweld 300

 

[Mattyo]

yes....a domed piston of sorts....

 

[Mattyo]

and since this thread was started by MM, and popups are not his thing, I would suggest moving such topics elsewhere...

 

[Paragon Builder]

It's just sending me to the unread timeline..

stihl 026, husky 266xp, mac 610, efco 132s, craftsman 54cc, mac 1635, Miller deltaweld 300

Sorry, here it is.

And mattyo is right, we are derailing MM's thread. Now I'm going to have to get him some pie.
What kind do you want?

 

[cali6construction9]

How hard is that to polish out so you're not throwing off balance?

stihl 026, husky 266xp, mac 610, efco 132s, craftsman 54cc, mac 1635, Miller deltaweld 300

 

[drf255]

Actually, that was 270 psi.

I shaved it down.

Then there was this one

http://www.arboristsite.com/communi...hutzl-stihl-039-cylinder.277638/#post-5324515

He never responded to me or built it.

Btw, don't think you can weld aluminum with a delta weld. Is it AC?

 

[Paragon Builder]

Actually, that was 270 psi.

I shaved it down.

Then there was this one

http://www.arboristsite.com/communi...hutzl-stihl-039-cylinder.277638/#post-5324515

He never responded to me or built it.

Btw, don't think you can weld aluminum with a delta weld. Is it AC?

That's right! I forgot it was that crazy high!!

 

[sunfish]

and since this thread was started by MM, and popups are not his thing, I would suggest moving such topics elsewhere...

I hear Randy is goin back to pop-ups...

 

[cali6construction9]

Actually, that was 270 psi.

I shaved it down.

Then there was this one

http://www.arboristsite.com/communi...hutzl-stihl-039-cylinder.277638/#post-5324515

He never responded to me or built it.

Btw, don't think you can weld aluminum with a delta weld. Is it AC?

Dc 3 phase 460volt

stihl 026, husky 266xp, mac 610, efco 132s, craftsman 54cc, mac 1635, Miller deltaweld 300

 

[cali6construction9]

It'll be here Friday I've still got to get a lead feader and a couple argon bottles lol and 3 phase

stihl 026, husky 266xp, mac 610, efco 132s, craftsman 54cc, mac 1635, Miller deltaweld 300

 

[gary courtney]

I hear Randy is goin back to pop-ups...

AFTER he finishes mine!!!!!

 

[Nitroman]

Sorry, here it is.

And mattyo is right, we are derailing MM's thread. Now I'm going to have to get him some pie.
What kind do you want?

I think he likes pecan, but I could be wrong.

 

[Paragon Builder]

Well if this don't cut it, I'll have to get another.

 

[cali6construction9]

So what's the deal with the 266xp? Is the 262xp better?

stihl 026, husky 266xp, mac 610, efco 132s, craftsman 54cc, mac 1635, Miller deltaweld 300

 

[Mattyo]

I don't have an answer to that question. ..buy I have pics of my freshly rebuilt 262xp! ....261 chassis...trimmed case to optimize squish. ..new ring....ported jug by me to mm spec...103 118 72 or thereabouts....greased it up and it gassed and it fires!

 

[Mattyo]

I took a video of the whole thing so video will be forthcoming and I have 2 other saws to build is well

 

[Mattyo]

it runs fine


I think I'll grab my husky 350 most often...but this is a nice addition to my lineup...got 2 more coming too

 

[Mattyo]

Another one on the bench.. chassis cut to optimize squish...down to abut .023 from .043 stock.... intake and exhaust timing is identical to the other one I just did...103 and 68 after squish was trimmed. So I've taken the transfers to 118 and I'll aim for 72 on the intake.