011 avt big end rod bearing?

[MG porting]

Have strange question my friend brought me a 011 avt to fix it was strait gast so I've never worked on one of these before did a lot work on 200t's but not one of these and as I poled the cylinder off I noticed that the needle bearings for the big rod end all fell out so to me that's not normal or good is it designed this way or is it toste?

 

[jacob j.]

That's normal. The roller bearings are loose and when you re-install the connecting rod, you have to gather them up and hold them in place while you slip the connecting rod on.

Some guys use grease to hold the rollers in place. I've used a small zip tie and a rubber band before.

 

[MG porting]

That's normal. The roller bearings are loose and when you re-install the connecting rod, you have to gather them up and hold them in place while you slip the connecting rod on.

Some guys use grease to hold the rollers in place. I've used a small zip tie and a rubber band before.

OK cool thank you. That is a weird design. Lol

 

[redline4]

I have an 011avt sitting under my bench. Has a knock when pulling it over, is dirty, but otherwise complete.
If you need any parts, let me know.

 

[67L36Driver]

Grease plus a wide rubber band.

I made a ‘roller holder’ from a strip of sheet copper.

To load half the rollers in and then the rubber band for the rest.

Slide/wiggle the rod in place and run it down to BDC.

The crankcase prevents the rod from slipping sideways.

Block the crank so it won’t turn.

My favorite antique Stihl is the 012.

 

[MG porting]

I have an 011avt sitting under my bench. Has a knock when pulling it over, is dirty, but otherwise complete.
If you need any parts, let me know.View attachment 131720

OK thank you I will give you a shout if I need something for it for sure.

 

[MG porting]

Grease plus a wide rubber band.

I made a ‘roller holder’ from a strip of sheet copper.

To load half the rollers in and then the rubber band for the rest.

Slide/wiggle the rod in place and run it down to BDC.

The crankcase prevents the rod from slipping sideways.

Block the crank so it won’t turn.

My favorite antique Stihl is the 012.

Well thank you very much for the info on how to get it back together very cool I'll give you a heads up on when I get it back together need to find out if he wants to go ahead on putting a new piston and rings in it. I did notice that on every piston ring set I found only had a single ring not two like the oem so what would you recommend?

 

[67L36Driver]

Well thank you very much for the info on how to get it back together very cool I'll give you a heads up on when I get it back together need to find out if he wants to go ahead on putting a new piston and rings in it. I did notice that on every piston ring set I found only had a single ring not two like the oem so what would you recommend?

I’d lean toward a two ring piston but availability will prove the deciding factor.

eBay seller lilredbrn ( Little Red Barn) carries the 012.

PISTON KIT FITS STIHL 012, 40MM, REPLACES PART # 1120-030-2010, NEW https://rover.ebay.com/rover/0/0/0?mpre=https://www.ebay.com/ulk/itm/381436929140

 

[Wagnerwerks]

That little laddle looking hickie that jj made is like the factory tool pioneer used for the same procedure... They work well.

 

[MG porting]

Well I got the go ahead on the 011 so I spent three hours on the cylinder getting as much transfer off yuck can't believe it didn't seize but I have to say it cleaned up fare. And yes I honed it after is did the acid to it.

 

[jacob j.]

That looks serviceable.

 

[67L36Driver]

That looks serviceable.

Very nice. [emoji106]

 

[MG porting]

OK have another quick question how many roller bearings are there supposed to be in the big end ?? I just stuck my magnet in and got 11 out of it is this right?

 

[CJKaz]

There are 12 rollers per the Ipl. Keep looking! A telescoping magnet is helpful.

http://thebakeliteradio.com/sawspares.com/stihl010011ipl.pdf

 

[MG porting]

There are 12 rollers per the Ipl. Keep looking! A telescoping magnet is helpful.

http://thebakeliteradio.com/sawspares.com/stihl010011ipl.pdf

that's how I got them out great that means one of them got away from me not good.

 

[smokey7]

Take the rollers to a good bearing house like motion industries, General bearing, Bearing service, or GDI. They can measure them up and give the correct hardness and speed rated bearing for you. Hell my motion industries will sell me a needel caged bearing and ill cut it apart nyself if it has thre correct needles in it.

 

[Fish]

Most folks live in the real world!!

 

[MG porting]

Well luck was on my side this time I found it it was under my shop chair the hole time lol.

 

[Fish]

Good, we all have a stack of those old crappers in the corner!!!

 

[MG porting]

Good, we all have a stack of those old crappers in the corner!!!

Yea it's not mine but the guy really wants to hear it run again now after I do manage to get it back to life I'm going to have to figure out a nice way to tell him to not lone it out any more. Lol