Huztl MS660

[Mattyo]

Ok.....thanks for pix. That line of small rubber parts. To the right is a tiny o ring. Left of that is some funky part.....and further left is one that looks like you can stick a flat blade in it. 3 parts I can't figure.....going nuts here....what are they?

 

[Mattyo]

Heat shield is included ...hyway kit

http://www.hlsproparts.com/Stihl-066-MS660-gasket-set-p/h40660.htm?Click=48376

 

[Mattyo]

Back to the rubber. ..

Bottom pic..
To the left of the chainbrake mainspring cover is a heavy o ring.... what is it for?

 

[cedarhollow]

The hyway kit looks like complete gaskets and seals. I think it was on the farmtec sight that I saw some heat sheilds for like 10 cents or something like that but you have to get 10 at a time. I need one for 440 build. and have not got the 660 hutzl kit yet. The one that was on the dead 440 was like aluminum duct tape under the muffler but the oem pats is a sheild or aluminum plate with exhaust port cut out. are there two types?

 

[Johnnybar]

my m4 bolts for holding the oiler/clutch cover on were missing...

I'll grab a small part organizer and get the bolts/nuts opened up for a closer look. Pics to follow.

 

[Mattyo]

Go through my vid and make a list from that of the bolts you need.

I got all the bolts correct in the vid...but I know I missed a few rubber pieces....hope someone can help with that

 

[Ozhoo]

Back to the rubber. ..

Bottom pic..
To the left of the chainbrake mainspring cover is a heavy o ring.... what is it for?

That's a spare for the rubber ring at the front of the tank housing. Part of the av system

 

[Mattyo]

I was thinking that, but it didn't look quite right... ok, good enough.

How about the tiny o ring? is that just a spare for the chain tensioner?

The odd looking piece to the left of the o-ring in the above pic? no idea on that

The piece that looks like a flatblade can fit in it?

 

[Ozhoo]

You got it, tiny dancer o-ring goes on the post under the tensioner spur

 

[Johnnybar]

I'll rely on you gents to tell me if I'm missing 660 parts since I didn't notice any obvious omissions but, Huztl did miss packing a spare MS290/390 muffler I planned to mod. They also replaced M8X1 flange nuts for 290/390 flywheels with standard nuts and no lock washers. Not too sure that's an acceptable way to anchor a flywheel!

Also just noticed that the spur to rim upgrade parts for the 290/390 don't jive:

View attachment 561423 View attachment 561424 View attachment 561425

Bearing is 10x13x10 which I believe is correct for 290/390 series. Small spline drum is 16mm ID...wrong for that series or is a bushing required? Drum labeled as 034 036 MS360 1125 007 1041. Huztl online catalog listing description is: 3/8 -7 Chainsaw Sprocket Clutch Drum For Stihl 029 039 MS290 MS310 MS390 034 036 MS360 Chainsaw 1125 007 1041 Item NO:J36019
What is my issue here? Missing item between bearing and drum? Wrong drum shipped? Huztl has it wrong on assuming 360 and 390 rim drums are the same size?

 

[Mattyo]

So it's an extra....ok.

Now I just gotta figure out the other two.

 

[Antarctica]

full machine shop, mill, lathe, etc... barely room to walk through the shop!

Boy do I know what that's like - VMC, 2 CNC lathes, manual mill and manual lathe, phase converter and a small compressor all on a 20x20 pad...

 

[davhul]

I'm going Huztl stock to see how she performs. Of course any known issues during build will either get some "baling wire" mods or OEM to circumvent early failure. Thinking that stiff oil tube better loosen up or else! lol Might add a nut as a pickup nipple locking collar in order to add some weight or a piece of brass bushing that will snug over the tubing at the barb.

On my last one I'm running all huztl except: chain adjuster, winter shutter, fuel hose to carb, clutch springs, elaso start, crank seals, fuel and oil caps, wrist pin bearing, high flow oil pump adjuster " for 36" bar", exhaust gasket. I used dirko for the base gasket. And used the huztl rings. Plugged decomp. And bar nuts. I could be forgetting something.

 

[Antarctica]

On my #2 kit I had to take alittle off the piston skirt. It was slightly scraping the counter weights.

I ran across a post about this or something similar early on when I first started learning about and looking into the 660 kit, and haven't been able to find that information again since - thanks for this.

What issues should I be looking for regarding piston clearance against the crank and or crank case - just contacting the counterweights? Are there other potential issues folks have found?

BTW - My new (tapped) case half was in new your yesterday, so hopefully things will start moving again...

 

[Johnnybar]

I was thinking that, but it didn't look quite right... ok, good enough.

How about the tiny o ring? is that just a spare for the chain tensioner?

The odd looking piece to the left of the o-ring in the above pic? no idea on that

The piece that looks like a flatblade can fit in it?

Flat blade piece is the wiring grommet I believe.

 

[Johnnybar]

Here's an online parts list/diagrahm that will help with all the misc tidbits:
https://www.manualowl.com/m/Stihl/MS-660-R-STIHL-Magnum/Manual/415953

 

[Ozhoo]

What issues should I be looking for regarding piston clearance against the crank and or crank case - just contacting the counterweights? Are there other potential issues folks have found?

At bottom dead center the inside of the piston skirt may contact the crank counterweight. You'll see that it's been clearanced. Sometime it's not clearanced enough.
Just rotate the engine bay hand and you'll feel if it hit at BDC.

 

[davhul]

I ran across a post about this or something similar early on when I first started learning about and looking into the 660 kit, and haven't been able to find that information again since - thanks for this.

What issues should I be looking for regarding piston clearance against the crank and or crank case - just contacting the counterweights? Are there other potential issues folks have found?

BTW - My new (tapped) case half was in new your yesterday, so hopefully things will start moving again...

Mine was only lightly scraping the counter weight. I noticed when checking my squish. At first I took to much off the piston and had some free port. I had a spare piston and I didn't want freeport so I took just enough off to not hit and have no Freeport. I didn't measure how much I took off. Maybe .030-.040

 

[Johnnybar]

Here's an online parts list/diagrahm that will help with all the misc tidbits:
https://www.manualowl.com/m/Stihl/MS-660-R-STIHL-Magnum/Manual/415953

I noticed that it shows an AUS oil pump piston/control bolt and a unspecified version on pages 8-9. Is one of them high output?

 

[davhul]

Is it part # 1128 647 4802
That's the high output