STIHL The Official Stihl Chainsaws Thread

[spencerdiesel]

I’ll vouch for Powerseal USA, though I don’t know if they do blind cylinders. They’ve done 2 replates for me on my RM125 with gorgeous end results. They’re highly regarded on all the bike forums I frequent.
Sorry I should have clarified, I’d love to know the month and year my saws were made but the real reason is so I can determine if they’re older than 1997.5. That would indicate the more aggressive factory port timing.

 

[Maintenance Chief]

Just got this one for FREE from a local mechanic.
1964 Contra 134cc ! Originaly SAV (i think)
View attachment 325582 View attachment 325583View attachment 325584


Piston compared to 070 and ms180 lol
View attachment 325585

Unfortunately cylinder is .... well, a slightly worn off..
View attachment 325586

Everything else is in suprisingly well shape, even the crankshaft is pristine.

I did an 070/ 090 clone build recently, the only issue that I had with the 66mm jug (aftermarket) was the bolt holts needed adjusting to fit the case( 7/32 file fixed) . The saw I started with wanted an oem vintage stihl but I did notice that jugs and pistons pop up on EBay frequently.

 

[PogoInTheWoods]

they’re older than 1997.5. That would indicate the more aggressive factory port timing.

I'm interested in the source of your information..., not doubting you to be a dick. Just curious since my 046 knowledge isn't very broad, though it's basically just a big bore 044.

Such a change would typically be indicated by a specific serial number break point and a corresponding and dated tech note. I can't find one specifically indicating any cylinder design changes you're referring to except maybe the widening of the intake port (and changing the ring locating pin locations to accommodate it) in TI_44_2000. This was early in the 1 48 *** *** serial number range in 2000.

That said, there was a "low compression" configuration (primarily for third world countries and *s-wordty gas) that used an .8mm base gasket. Simply dropping that to the normal .3mm gasket would certainly affect timing to an extent, and obviously compression.

 

[spencerdiesel]

I have no hard facts about the early (1st year) 046 port timing, other than those that have stated the 1st year saws they degreed had very short blowdown compared to later years they degreed.
Here’s the cylinder after dropping to 120 grit and then finishing with 220.

 

[PogoInTheWoods]

That's a real nice job. Looks good.

I guess there's a possibility Stihl made changes to the cylinder early on, or maybe even changed manufacturers. I'm just naturally skeptical of 'information' that doesn't seem to have a documented basis of origin -- especially when it comes to port timing numbers from who knows who with whatever skill level or understanding of whatever it is they actually think they're doing and seeing. Not casting aspersions toward you, but a little time on Facebook is all it takes to find a lot of bad info from clueless people. When serial numbers and dates start getting tossed around like secret codes only the cool kids understand, that's when I really get curious about what the actual documentation has to offer on a given subject..., partly because I have access to it and really enjoy the research aspect, and also to keep it real when someone gets a little sideways with the 'facts'. The ultimate objective is to provide accurate information or learn something new..., or confirm something weird and obscure. Funny how that can piss some people off.

 

[Maintenance Chief]

Considering that some of the worlds top porters frequently discuss the 046 and ms460 on here I am suspect of super secret formulas that others have discovered in early cylinders that aren't talked about now.
With the popularity of Hybrids it's been explored past and present with no mention of a "special " cylinder. Like say the 10mm 044.

 

[spencerdiesel]

I can understand that for sure. I don’t know anything about Facebook but I have no intention of getting one, the things you mention sound a lot like what I hear from others. Hoping to see if this saw barks tomorrow, I’d love to break it in.

 

[Woodslasher]

Considering that some of the worlds top porters frequently discuss the 046 and ms460 on here I am suspect of super secret formulas that others have discovered in early cylinders that aren't talked about now.
With the popularity of Hybrids it's been explored past and present with no mention of a "special " cylinder. Like say the 10mm 044.

I think he might mean the "D" jugs.

 

[spencerdiesel]

From what I’ve read, only the D chamber jugs from 1st production (early 1996 unless I’m wrong) to early 1997.

 

[PogoInTheWoods]

Yeah! Yeah! Yeah! -- The D chamber jugs! Thanks for jarring the memory. Forgot all about them. Got my curiosity up and I did some searching to brush back up on the subject. Immediately found this. Good stuff for the most part. There was obviously a manufacturer change early on. Also seems like compression was the more desired feature than the actual timing numbers.

https://opeforum.com/threads/046-cylinder-identification.7653/

 

[Al Smith]

So far all I've ever needed to do is use an AM piston and those have been Meteor .I do have a back burner Mac 700 and an 850 that both needs a new piston but I'm not certain the AM's would work well so I'll just hold off for a used OEM . I don't get real excited about this stuff any more .You either find it or you don't nor do I spend a kings ransom on them .

 

[PogoInTheWoods]

If you ever decide to re-home that 850, please keep me in mind, Al. 'Bout the last saw on my wish list aside from one of the big ones -- which as you know aren't very realistic finds around here anyway.

 

[Al Smith]

Those big guns for the most part are west coasters .Large saws of any make have always been costly .For example the Stihl dealer I do business with might only sell one 880-881 or whatever they call them these days about 1 every two years . Of those I have haven't been used in over 6 years .I'll probably have to rebuild the carbs .Not a big deal just a pain in the rear .

 

[PogoInTheWoods]

Coupla those for sale up this way. Have been for awhile and probably will be for awhile longer at the prices being asked. Basically very expensive milling saws these days.

I have my big work saws already. Pretty well set for anything I'll ever need to cut. My 066 flat top is the first saw I basically built from scratch out of a case found in a flooded basement and pieces/parts I scrounged or bought along the way. Was pretty green back then. Took me three years to finish. LOL

It's the big yellow 6 cube fun saws I was talking about.

 

[Al Smith]

I bought all my 100 plus saws long before they thought they were gold plated including the 2100 CD Husky .Which of course is 99 cc .It takes something special for me to spend much money on which does happen every so often .Saying that it will take the sun rising the west before I ever bat an eye over a clam shell Stihl .Different strokes for different folks .

 

[CrystalRiver1]

STIHL MSA 161 T
Any info on the cc's this saw has?

 

[spencerdiesel]

MSA 161, looks like the first battery top handle saw?
So it hurt like no other but I bought a MS 461 today new from local dealer. I was going to remove the spark plug; I grunted with an 8” scrench, it didn’t move.
Should I let my dealer know? What do y’all think?

 

[PogoInTheWoods]

Should I let my dealer know? What do y’all think?

I'd take it back and make the dealer pull the plug himself.

And congrats on the saw. Pretty good chance you won't regret it.

 

[Woodslasher]

MSA 161, looks like the first battery top handle saw?
So it hurt like no other but I bought a MS 461 today new from local dealer. I was going to remove the spark plug; I grunted with an 8” scrench, it didn’t move.
Should I let my dealer know? What do y’all think?

461's are known for weak spark plug threads, definitely make the dealer pull it. If the threads are boogered send it off to @srcarr52

 

[PogoInTheWoods]

If it's a NOS saw and the plug threads are bad, the dealer owes him a new cylinder. It'll come with a new piston, too.