STIHL The Official Stihl Chainsaws Thread

[Al Smith]

Now then the 048 was the first Stihl chainsaw I ever owned .It was a flea bay deal from a dealer in I think Washington state .They were honest and said it had a spun bearing . I had to figure out how in the world to get that thing apart .Being an old McCulloch jockey this was all new to me but I figured it was a heat shrunk fit and with the help of a heat gun I got it .This was long enough ago you could still find parts at a dealer but even then the clutch side seal was nearly 30 dollars .So a little trick of raising the bearing pocket with a prick punch,some compound and a heat freeze reassembly it lived again .I have two plus an 042 and considering the age they do very well however they are shelf queens . BTW that almost impossible to find clutch side seal is 20x35.8x 4 ---Google will find it ,Stihl won't

 

[Al Smith]

Rambling on some more In looking at that spur in reference to the 048 it won't fit the clutch drum but it looks like it would the 038 according to what I found on the IPL's .

 

[PogoInTheWoods]

​

 

[Al Smith]

At the risk of sounding like a smart azz this what the replaceable spur of an 042/48 looks like .It's different than what was shown on the earlier post

 

[Maintenance Chief]

I've had a couple of old 028s with the replaceable spur like that , which would be closer to the 029.
Oregon makes a regular rim drum to fit with the correct oil pump drive.

 

[PogoInTheWoods]

So what drives that spur? Certainly not the oil pump gear in either case.

 

[PogoInTheWoods]

Turns out I happen to have what appears to be the drum for your spur, Al. I imagine there may be a variant for Mark's as well.

 

[Maintenance Chief]

So what drives that spur? Certainly not the oil pump gear in either case.

It's like the tabs just hook into the drum, I have some old ones somewhere?

 

[PogoInTheWoods]

I was just being a smart ass. Sorry.

 

[heimannm]

For the purposes of a quick fix, I clipped off the fuel line at the grommet and just pushed a piece of Tygon into the hole, it fit over the barb on the carburetor easily enough. I pumped it up to 7 PSI to make sure it would hold O.K.

Do you have a part number for the spline type clutch drum to aid in my search?

Mark

 

[PogoInTheWoods]

1117- 007-1006 is the complete 3/8 7T conventional rim drive kit which includes the drum. The drum is not listed as a separately available item but can probably be scrounged. The rim itself is a common spline rim.

 

[Al Smith]

My book of IPL's is old .I tried to find the set up for an 029 with a replaceable spur but my book did not list one for that model .Which is not to say another set up might work .If I get some time I'll root hog through a couple of parts boxes full of dead 029-039 parts .Those saws died in the hands of ground crews working for tree services .I think they only lived for maybe a year and a half from new .Those saw models have cut a lot of fire wood but don't do well for tree service work .

 

[Clarkbug]

Same tree service local has an older 029(?) with this sprocket arrangement.

View attachment 366121

View attachment 366122

I am currently without my desktop computer so I don't have access to the MediaCat files to try and search out a part number. Are there replacements out there somewhere and what would be a reasonable price? Is it possible to convert this saw to a more conventional drum with a spur or better yet rim type sprocket?

Mark

This might work for you.

Power Mate® Rim Sprocket System, 3/8" 7 Small 7 | Oregon Products

The most effective sprocket for all types of chain saw users.

www.oregonproducts.com

Like Maintenance Chief I had an old 028 with that style sprocket and I used one of these kits to convert it over.

 

[PogoInTheWoods]

Knowing what the saw in question actually is would be helpful. I'm unaware of an 1127 series saw ever using a replaceable spur drive on a splined drum.

To my knowledge those were relegated to the extended length PTO shaft design with the double length needle cage and spur gear oil pump drives of the 028, 038, 042 and 048.

Best bet is to simply convert to a standard rim drive using the original splined drum (if still serviceable) on any of those saws.

3/8-7T:
028 uses the small spline 0000-642-1231 - $7.50
038 and 048 use 0000-642-1223 - $9.50
042 used 0000-642-1221 (as did the 045). $9.50

 

[Al Smith]

From my own stumbling along I have in the past substituted Stihl clutch parts I've found in parts boxes to repair damaged parts on others .The parts numbers were not the exact same but it worked .If memory serves on one occassion it was one shoe and the springs from an 029 for an 034 clutch . This is why I never throw anything away .Some times it works some times not .I might add that 034 I had a hard time getting the clutch apart .They had ran it with no bearing and it was as jambed up tight as a bulls azz in fly time .

 

[heimannm]

Thanks Poge, We'll discuss his options when he comes for the 310 this week. I'll ask him to bring the saw so we can have a look and see what's under that spur.

Mark

 

[AlexStromberg]

Anyone that has experience of running a 24/25" 3/8" bar on a 036? Too much bar or is it fine?

 

[heimannm]

I have run the 24/25" bar on an 036 and it handled it well enough. It was the largest saw I had at the time and was bucking a very large pin oak tree (pretty hard/tough wood) that required cutting from both sides to get through.

By the time I was done however I had to take the saw in to have the oil pump replaced. Working it that hard in very hot weather had literally melted the bits of the oiler.

Mark

 

[AlexStromberg]

I have run the 24/25" bar on an 036 and it handled it well enough. It was the largest saw I had at the time and was bucking a very large pin oak tree (pretty hard/tough wood) that required cutting from both sides to get through.

By the time I was done however I had to take the saw in to have the oil pump replaced. Working it that hard in very hot weather had literally melted the bits of the oiler.

Mark

Then the smae setup should work fine here. We have no actual hard wood. Not even oak here is hard compared to some species.

 

[Maintenance Chief]

I rebuilt an 034S and used a 24" bar on it for 2 yrs, it was great for dropping pines and small hardwood.