066 bar on an 084

[jb-chainsaws]

recently I bought a sugi 42" 3/8 bar for my ms660 to do a bit of milling after the 090 blew up mid job.

I've since sold the ms660 with a different bar, and I'm wondering what work is needed to make this bar work on the 084 that's just come in, and later one of my other 090's that I've recently acquired.

Will small mount bar studs fit an 084 or is the thread larger?

How easy is it to mill out the bar slot by hand? Should I take a mil off both sides or 2mm off one side?

Bar oil holes I appreciate won't line up, will a demel cut slot do the job?

 

[TimRD]

You are correct that you need to mill the slot 2mm wider to accomodate the studs, but the studs are M10 on the 090, and M8 on the 3003 mount (up to the MS660). I would do a mm off each side if you could.

You could also swap your bar studs in the 090 but if you want to be able to swap bars you have to swap out the rest of your bars too.

The dremel should make you an oil hole in no time at all. If you end up drilling it though, just keep your rpm low, like 100 rpm low. I have some older bars that fit an 090 that look like they went through a chipper to have the oil hole cut. I don't know what the hell people used to make them, but they work.

 

[Brewz]

I bought a 42" bar for my 066 but it doesnt oil it the best.
I know you can do an oiler mod but I now have a couple 2100's and an 090 that slobber oil so the small stihl mount 42" is now all but obsolete.
I thought about looking into what I need to do to use it on the large stihl mount 090 but it was easier to just get a large stihl mount bar.

Thinking of just selling it to finance a more suitable 36" bar for the 066

 

[super3]

Files worked real well for me to open up the slot. Do each side so bar can be flipped. Drill new oil and bar adjuster holes.

 

[jmssaws]

Instead of grinding on a very expensive bar just turn or grind the studs down.
There cheap and easy to change.

 

[jb-chainsaws]

Instead of grinding on a very expensive bar just turn or grind the studs down.
There cheap and easy to change.

If I had a lathe I'd do it in a heartbeat! Unless someone is willing to turn me down a couple of studs at a cost?

 

[jmssaws]

Just file 2 flat spots.

 

[jb-chainsaws]

I bought a 42" bar for my 066 but it doesnt oil it the best.
I know you can do an oiler mod but I now have a couple 2100's and an 090 that slobber oil so the small stihl mount 42" is now all but obsolete.
I thought about looking into what I need to do to use it on the large stihl mount 090 but it was easier to just get a large stihl mount bar.

Thinking of just selling it to finance a more suitable 36" bar for the 066

I agree the 42" was a bit much for the poor 660, oiler just couldn't cope milling the ash I did with it, but needs must sometimes!

 

[jb-chainsaws]

Just file 2 flat spots.

Damn you're full of good ideas today! I'd have never come up with that nugget on my own, danke!

 

[jmssaws]

I back them out a 1/2 turn then make the flat spots so you can tighten back up and run the normal bar.
No need to buy anything

 

[Brewz]

Do the oil holes line up?

 

[Chainsaw Jim]

What Jason said but before you remove or loosen the studs you can take a flat file and make your mark across the bottom of both studs at the same time so you know where to flatten them. Remove the entire bottom step all the way flush with the rest of the stud. The bar slot will fit it nicely and the direction you take the bar helps it reach the oiler hole.