Huztl MS660

[Johnnybar]

So I have my kit completed. Saw started in 4 pulls. Need to tune it once I pick up a chain. I was able to pick up a 28 Rollomatic ES brand new in packaging from my local CL for $30. I do have one issue. When the saw is not running, the clutch drum can by spun by hand freely. I know you shouldn't make it a habit of running the saw without a load on it. However, once I have had it running, the clutch spins. When off, the clutch then shows some resistance when trying to turn by hand. It is not enough resistance to turn the clutch, and you can pull the started rope with the chain brake on. This may seat itself once there is a chain on it with tension. Might try a different clutch drum if there is no change. Any ideas? I will try to upload a finished picture. Al

Either the clutch segments are not returning to idle position properly or the brake band is dragging on the drum....my guesses anyway. Did you lube the clutch bearing?

 

[Johnnybar]

Either the clutch segments are not returning to idle position properly or the brake band is dragging on the drum....my guesses anyway. Did you lube the clutch bearing?

The chain brake holds the drum so engage it and if it is the clutch dragging you can tell by removing the plug and slowly turning it over with the pull cord or manually turning the flywheel. Also make sure it is not the magneto shifting and dragging...while you have starter cover is off listen closely to that side of the powerhead when turning...also look for scoring on the OD of the flywheel.

 

[davhul]

How about that washer under the clutch. If it's upside down it may cause some resistance

 

[Al J.]

Does the raised center section of the inside washer go toward the clutch, or the oil pump? Right now I have it pointed toward the oil pump.

 

[Al J.]

I may have answered my own question. Pulled up an oem washer online and the humped side says "TOP". I will flip it an see how it is.

 

[davhul]

Yep. Was about to answer.

 

[Al J.]

Thanks!

 

[Johnnybar]

Does the raised center section of the inside washer go toward the clutch, or the oil pump? Right now I have it pointed toward the oil pump.

The E clip sets in the cupped side of the smaller outer washer. Factory inner cover washers are marker TOP to show the side that faces out...orient your unmarked one the same.

 

[Johnnybar]

Davhul, has that thing been eating railroad ties? lol

 

[davhul]

I know that thing was bad. It was on a 461 I was sharping. I cleaned it in the parts washer.

 

[Johnnybar]

Thanks!

Make sure the clutch has the raised nut pointing out.

 

[ckelp]

Davhul, has that thing been eating railroad ties? lol

it could be worse, it could be dirt and bits of pedafile in there
just tell me that your not using used motor oil as bar oil

 

[davhul]

That wasn't my saw. I was sharping it and pulled the clutch to take a pic

 

[ckelp]

That wasn't my saw. I was sharping it and pulled the clutch to take a pic

don't lie, every time you lie a baby gets punched in the face

 

[davhul]

Lol. I love when people use gear oil as bar oil. There's the 440 in question

 

[Johnnybar]

Does the ebay seller norcalchainsaw visit the forum? I see he sells a steady stream of hybrid MS660's. Anyone know who he is so I can get in contact with him away from ebay?

 

[Frogfarmer]

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?

360 390 drums are the same. The ones you were supplied are the large bearing style and in my opinion much better. Uses the larger bearing from the 044 class saws.

 

[Johnnybar]

360 390 drums are the same. The ones you were supplied are the large bearing style and in my opinion much better. Uses the larger bearing from the 044 class saws.

Unfortunately they do not state the bearing size in their listing. They don't even state if the drum is small 7 or std 7 spline let alone the ID on it either. So they are shipping 10x13x10 bearings when they should be shipping 10x16x13 if they only stock 16mm ID drums. That's the 660 size bearing so I have several in stock. I'll check it out.

 

[Frogfarmer]

Looks like that's what you got. I have a couple ordered and hope I get the right bearing. Time will tell.

 

[Frogfarmer]

The E clip sets in the cupped side of the smaller outer washer. Factory inner cover washers are marker TOP to show the side that faces out...orient your unmarked one the same.

View attachment 561598

Some of the inner scatter shield washers are stamped wrong and unusable without modification. The outer lip is facing the wrong direction.