048 saws.

[Dieselshawn]

I’ve got a 048 stihl that I would like to restore.

It was a a running saw at one point until I tore it down for a restoration.

I noticed there are aftermarket oil pumps and gears but I’m not familiar with them.

Does anyone know of some of these after market stuff?

 

[Woodslasher]

Is your current oiler busted? I looked at those pumps and to be honest they look like cheap crap. I redid an 048 (my first "big" saw) and I quickly found 98% of the a/m parts for those were only made because they are compatible with other models, fyi. Parts tend to be nla in a big way.

 

[Dieselshawn]

Woodslasher:

I haven’t checked to see if the Oiler still worked.

The farmer friend that had the saw last used it to cut round hay bales 3 times a week.

The hay pieces got everywhere inside the chain area and where the plastic gears are.

I’d have to check again and see if the gears are salvageable.

The hay is also acidic and ate through the metal.

I took the saw apart to clean it up before attempting to start it. I know it runs as the saw was put on the shelf after the farmer set up a different system to shred hay bales.

He also bought a new MS362 (at the time) so the 048 was never going to be used again.

I also have his grandfather’s 1957’s era EZ-6 Homelite which is up on the shelf as display.




When I go out to shop today, I’ll bring the saw out of the box and post pics of it.

 

[jacob j.]

As long as the on/off switch shaft is intact, you should be able to find the rest of what you need for it. The switch shaft is unobtanium and the early stepped clutch drum/integrated sprocket
is almost impossible to find as well. Full-wrap handles are also becoming hard to find but other parts are fairly common on the secondary market.

 

[Al Smith]

For some reason the 042 and 048 were not in production that long .I think the last of that style was the 038 mag and later models 380 and 381 which were not sold in North America because of EPA standards . I have two myself of the 048's but one with a leaky clutch side seal .Which by using the specs have found a replacement which OEM there are none available save new old stock which they get a kings ransom for .
As far as the actual saw they certainly have enough power although some say they are too heavy which I disagree with .It has been said that in the day this model had the highest HP to weight ratio of any saw made in that time period .
It's just like many older saws ,you can find the parts you just need to be resourceful and patient .With regards to the oil pumps the drive gears depends on the clutch drum set up because there are several styles used on the 042 and 048 .

 

[Dieselshawn]

Despite the fact that I have an 048, I’ve never seen one run in years.

When I did see the farmer run it, it was back in the day when I wasn’t into saws like I am now. Didn’t really pay much attention.

Now I love working on them.

I’ve now got the saw parts out from mothballs on the shelf and spread out on the bench.

I guess I should post it on the “What’s on my bench” thread.

Due to the length of time that went by since I tore it down, I’ve decided to put the saw back together and see what it does first.

 

[Dieselshawn]

Here are the gears and drum

 

[Al Smith]

You should be able to find another spur drum or a rim drive but it will take a different oil pump drive gear .If I'm not mistaken those models had three drive systems, solid spur, replaceable spur and replaceable rim drive . It may interchange with a drive system from an 038 but I'd need to look it up to be certain .

 

[Dieselshawn]

Al smith: I’m looking forward to the info you may provide to replace this drum.

 

[67L36Driver]

I may be mistaken, but:

The rim drive clutch drum uses the 3/8” x 7 tooth spur drum oil pump setup.
[emoji848]

https://www.ebay.com/itm/CLUTCH-DRU...=p2349624.m2548.l6249&mkrid=711-127632-2357-0

 

[Al Smith]

I looked them up but they aren't the same numbers which doesn't mean they won't work .If I can find some drums ,which I might have I'll do a comparison .
Some times they will interchange .Once I used a clutch shoe from an 029 on an 034 with no problem but 038 to 042/048 is only speculation on my part .

 

[Al Smith]

FWIW they list three drives for both the 038 and 042/048 .It looks like the pump drive gear is the same for solid spur and rim drive but different for the replaceable spur .Now weather the replaceable spur is the same or not I'm not certain .Between 2 048,one complete 042 and three 038's I know I have all three .

 

[Al Smith]

I took the liberty of going to flea bay and they do have a few drums listed for the 042/048 .

 

[Dieselshawn]

67L36Driver, Al Smith: Looking at the EBay site that was posted above, it sure looks like the gears that are required.

 

[Dieselshawn]

The 048 will also need some crank bearings by the looks of it (side to side play).

As of right now, the saw is completely back together minus the flywheel (key is missing) and locking clip for keeping spur in place.

 

[67L36Driver]

One thing I do remember is the crankcase screws (4?) are known to get loose.

The one I had were loose and lost part of the gasket causing a nasty air leak. It wouldn’t run.

Used the torx screws on reassembly. [emoji108]

Took quite a while to corral the full wrap mount hardware at the clutch cover.

 

[rocketnorton]

sub
got one here
no parts, tho, other than handguard n halfwrap

 

[Al Smith]

The early 042's had slotted head screws but I'm not certain about the 048's .It was not the best choice obviously . I think the crankcase and bones of an o42 I have in my shed is one of the early ones . The pump drive gears are a little different depending on the style .Weather those might be the same as an 038 or not I have not checked .Unless I'm mistake the pump driven gear would be the same though .I've been told with the exception of the 028 those pumps on that series do inter change one with another .

 

[Al Smith]

More info .The flywheel side of the 038 and the 042/048 bearings are the same ,the seals by the IPL are misleading because it appears they list two. Now then the clutch side for the 042/048 is where the problem comes in .It's a special grooved bearing with a radiused inner race that goes towards the crankshaft on assembly .The size is 20x42x14 .Where you might find one is anybodies guess ,I don't know myself .The NLA clutch side seal is very hard to find via Stihl part numbers but rather easy using the generic size which is 20x35.8x4 . Best kept secret in the parts pirates bag of tricks , little old grease monkey me cracked that code .
Now all that said in typical German engineering fashion by using specialty parts they thought they could control attempts to service their creations .That might have worked had they not forgot "Yankee ingenuity " .Nothing made by human hands can ever be controlled by the company that made it .It just takes determination and creativity to win that game .

 

[67L36Driver]

I have one of the infamous PTO side seals.

Snagged it as an insurance policy should mine need it. It didn’t. [emoji106]