3120 bar stud fix

[mdavlee]

The 3120 I had here had the bar stud holes loosened up where they would leak oil. A few m12x1.75xm8 inserts to fit stihl 660 studs is what I found. Drill the holes out a little and tap them. I did have to countersunk the clutch cover with a 1/2" bit to clear the long shoulder on the studs.

 

[mdavlee]

This will work on about any of the 3xx huskies to run 3003 stihl bar studs in them. Probably cost around $15-20 to convert.

 

[srcarr52]

I usually peen around the face of the bar plate for sealing, peen the bar stud inwards from there so increased press and red locktite when reinstalling them into the case. On really bad cases I have welded the face of the hole shut and re-drill from the inside, but these cases where already torn down.

But I guess this is also a good way to permanently switch a Husky to Stihl mount bars.

 

[mdavlee]

These would have to have been welded. The studs wouldn't hold in on their own at all. The clutch cover holes were even messed up. I have mostly stihl mount bars any way so it was a good fix for me and I may do more this way in the future just to not have to use adapters.

 

[Al Smith]

Nice job .FWIW another fix is 056 studs .M10 on the saw side and M8 the bar side. Plus medium mount Stihl bars are more plentiful than Husqvarna. My 2100 Homelite wears a 36" from an 066 Stihl . The 084 has a milled out slot 066 42".


Try and find a good Homey bar or large mount 084 size bar for a reasonable price .Wish in one hand and chit in other,see which one fills up faster .

 

[Mastermind]

I'll remember this Mike.....well, maybe. lol

 

[jmssaws]

I've used 143 studs because of how big the threads are,can't recall the exact measurement but it's close to 1/2"
Drill and tap for them and Chuck the stud up and turn it down to a stihl mount.
880 studs work the same.

 

[mdavlee]

M10 wouldn't have fit either. The hole was already 10.4mm. Took awhile to find the inserts the right size.

 

[jmssaws]

I have also took a 1/2" bolt and made a helicoil out of it,works good also.
Every husky I fix gets stihl studs to mike

 

[Normzilla]

The 3120 I had here had the bar stud holes loosened up where they would leak oil. A few m12x1.75xm8 inserts to fit stihl 660 studs is what I found. Drill the holes out a little and tap them. I did have to countersunk the clutch cover with a 1/2" bit to clear the long shoulder on the studs.

Nice work.

 

[Al Smith]

Well ya ran out of options in that case .We use time certs at work.They have a good selection,metric and SAE.

 

[mdavlee]

I think these inserts were knock off keen serts.

 

[jmssaws]

I think these inserts were knock off keen serts.

I have only used a helicoil a couple times and never a time cert,way to expensive.
I use grade 8 bolts for 20 cents. Lol

 

[mdavlee]

These were about $12-14 for 10. Well worth it over a helicoil.

 

[mdavlee]

Well ya ran out of options in that case .We use time certs at work.They have a good selection,metric and SAE.

If some happen to fond their way in your pocket I can use the m6 and m5 inside size [emoji6]

 

[Al Smith]

Let me look around .M5 or 6 is rather small for what we would use at work.

 

[smokey7]

I can look at work too. They are expensive but let you save a othèwise ruined part with it.