Twisted Up 56 Mirrometer 660 Jug Build.

[MustangMike]

I'm going to have to re label my MS 710

 

[RI Chevy]

LOl. Unique Stihl for sure.

 

[Onan18]

The Chinese make it, and Husky shakes it.

 

[MustangMike]

I'll fix that for ya:

The Chinese make it, and Dr Al shakes it!!!

 

[drf256]

Some notes on this build.

185 psi after the second angle in the chamber. Good thing for it, as saw was a bear to start, even with the sissy button.

Used a single OEM top ring and OEM clips and Bearing.

Plug held fine.

Huztl mufflers are thin and made from complete crap. Nearly impossible to weld. Dam metal spit up onto tungsten 4 times while just welding the deflector. Looked like I dipped when I didnt.

Jug was NWP, so it’s not really crap. They make some of the best AM jugs I’ve seen. Should last a good long time.

Ran strong, but I really can’t tell anymore. Still needs to be broken in and judged against an OEM ported standard bore. Mike will be doing that today and he knows not to sugar coat his opinion-we learn nothing from that.

395 piston provided the ability to go wider with the ports and run the correct piston orientation with finger ports.

The wood was like concrete. I could feel the chain biting as it was a milling chain with low rakers.

All in all, not a bad option if someone wants a big bore and wants it spicier with an OEM or Meteor piston to go with it. Now that the measurements have been made, it’s no longer any giant task to do another.

 

[Redfin]

Nice work Doc.

 

[Onan18]

I'll fix that for ya:

The Chinese make it, and Dr Al shakes it!!!

Rep for you sir.

 

[MustangMike]

Only got to run my MS 710 briefly yesterday. We bucked 15 cord of logs before 2:00 (3 saw guys).

The 36" chain was rocked worse than I thought, so I put a 24" on it, and it was noticeably too rich. I leaned it a bit, but with the other saws constantly running, I realized it was not the best time to be playing with this monster. I don't want to make a mistake with the tune.

It ran fine, but I don't think it has reached it's potential yet, only about 1/2 tank through it so far.

Will keep you posted when I cut some more, but I think I'll be doing some hunting soon.

 

[blsnelling]

I'm going to have to re label my MS 710

710?

 

[Fruecrue]

710?

660+ I assume.

 

[MustangMike]

If it used to be 92 cc and is now 99 cc, divide 660 by 92 and multiply the result by 99 ... simple! MS 710 !!!

 

[Chainsaw Jim]

I think 068 could be more accurate if the 070 is 106cc.

 

[MustangMike]

You may be correct Jim, but we did not start with a 070, we started with a 660, so if Stihl exaggerated, we will continue the exaggeration! (I think a 440 is also supposed to be a 430, but how would that sound???)

 

[Dub11]

You may be correct Jim, but we did not start with a 070, we started with a 660, so if Stihl exaggerated, we will continue the exaggeration! (I think a 440 is also supposed to be a 430, but how would that sound???)

I think the Stihl Oh-69 would be worthy

 

[Cut4fun]

Cool thread.

98.52 6.012

 

[Mastermind]

Thanks for the build thread Doc.

@drf256

 

[Mastermind]

I built one like that several years ago.......

 

[drf256]

Looking good Moobs.

I spoke to mike. Going back into mine for a few changes.

 

[Dub11]

Looking good Moobs.

I spoke to mike. Going back into mine for a few changes.

You made a 56mm monster too?

 

[Mastermind]

Looking good Moobs.

I spoke to mike. Going back into mine for a few changes.

That was from 5 or 6 years ago.

Now that saw has an OEM top end. The NWP jug was out of round and scuffed the piston pretty quick. I had to change the ring and sand the piston a few times before I finally gave up on it.