051 sprocket question

[Ducksnuff870]

I have a stihl 051 that i use for bigger firewood trees. The longest bar i have is a .404 25" . I found a stihl 3/8 bar 36" on cList for $100 with 4 chains. Would i have to change sprockets?  I would love to ditch my 051(shes a lil heavy) for a 046,460 or dolmar 7900 but times are hard. I also run a 036,031 and (prob my fav) a olympyk 241.

[JohnG28]

Yes, you will have to change the drive sprocket to a 3/8" sprocket. Other than that you should be good as long as the mounting bolts for the bar are the same.

[Al_Smith]

The 051 according to the parts list indicates it uses m 10 studs the same size as an 084 .I can't determine by looking at the list if the type studs have a collar on them  or if they are just straight studs . I have never seen one of this model that I can ever remember.

I would speculate if it has a wide collar like the modern saws it would take the larger mount size like the 084 .

[sawguy21]

It uses the Oregon E031 mount same as the 084 and 090. Those bars are getting harder to source.

[Al_Smith]

You can mill out the bar slot if worse comes to worse .I've got a 42" on an 084 that was originally for an 066 that works fine with a widened slot .

Stihl mount bar sizes with some creativity can be adapted to just about any saw known with few exeptions because they have a wide heel .

Something like replacing a large mount McCulloch bar with a 10 series mount will not work because there is not enough width in the heel section to match up the oil slot and tightening hole  .Yet a Stihl bar with spacer bushings works slick as a whistle .--more junk yard dawg trivia --