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Author Topic: 048av super.  (Read 3798 times)

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Offline HolmenTree

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Re: 048av super.
« Reply #20 on: January 15, 2018, 09:22:19 AM »
been lurking for a while on the forum.

it has become more of a to do for me as a winter / sanity project. updates and pictures will be coming... as much as i want to make it like new I think it will be a functional rebuild to just have as a tool.
Keep reporting 20ozjolt, sounds like an interesting project!
Mid winter here too where I am. -36C -44 windchill. I'm pretty well confined to the house and my cozy workshop.

There was a Scotsman faller named Barry Angus who worked at our logging camp back in the early 1980's, he ran a 048 with a 20"b/c.
When we were working near by each other one day, we stopped for a smoke break and talked saws. I was running a Stihl 038AV and we switched saws for a few hours.
I liked how nice that 048 cut with much more grunt then my 038. It felt like a durable saw.
I was happy to get my lighter saw back but the impression I got from big Angus was he felt my 038 was a toy. :D
Making a living with a saw since age 16.

Offline 20ozjolt

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Re: 048av super.
« Reply #21 on: January 18, 2018, 07:14:41 PM »
spent a few hours cleaning the crud out of everything should start reassembly on Saturday

any of you live in Croatia?  ... I want that *expletive* control switch lol

dang Holmen that is cold like Alaska cold...
I do miss real winters.

shes all done and been cutting for about 4 tanks of gas. Not my main saw any more but a good cutter once again. 


Offline Kfd518

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Re: 048av super.
« Reply #22 on: June 02, 2018, 01:47:37 PM »
A little stihl 048 ignition combination information

In looking through the ipl's i have found that the
1117-400-1200 flywheel appears to be an early point version
1117-400-1201/1202 appear to be SEM ignition style flywheels
1117-400-1206/1207looks to be the coil which will work with the newer"universal style ignition module

the odd numbered flywheels seem to be the ones being used on W versions aka heated handles.

( the following is speculative information! I do not have any info on flywheels in between other than the fact that some of them have two key way index grooves which I speculate would be interchangeable between point and SEM, or SEM and universal. )

the 048 seems to have been started with a Walbro WS-14 carb and later changed to a WS-15.

will post more and or edit posts as I do find more accurate information.

Alright I know they are obsolete but I do believe I have found the info to post for others that may be having issues or have had one stashed due to issues.

Donut trigger, 1118-400-1000 was replaced with 1118-400-1004 beginning with machine number X11-169-021.
SEM module 1117-400-1300 discontinued at same machine #.[ (the following must be used together) It was replaced by Bosch coil 1117-400-1300 & trigger 1118-400-1004]
1117-400-1202 flywheel hash 2 key was marked "B" and "S" respectively indicating coil to be used with each key way.

At later date
1118-400-1004 replaced and the following combinations are to be used omitting any external module previously mounted factory or dealer repair.

FW 1117-400-1202/ 1117-400-1206 with ign module 0000-400-1300 from machine#7696411 (use B FW key way)

Regarding the flywheels mentioned above. These flywheels (1206 and 1202) only work with the crankshaft installed after the above mentioned serial number! Reason being that the crank shaft taper was changed from 1117-030-1402 old shaft to 1401 new shaft. (Yes backwards numbering don't ask me why)

Heated handle uses FW 1117-400-1207 with ign module0000-400-1300 machine number 15296714 (use B FW Key way)

048 super only had improved Port timing and larger carb same displacement. Jug simply marked with ++ after casting number.
I have not measured the 048 super cylinder that I put on mine and compared it to the plain 048 cylinder I pulled off. I will eventually get to measuring ports and timing on them both and post it up.


Offline 20ozjolt

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Re: 048av super.
« Reply #23 on: July 04, 2018, 10:34:20 PM »
dang that is some detail. thank you. 

Offline Kfd518

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Re: 048av super.
« Reply #24 on: December 13, 2018, 12:47:44 AM »
Never got a notification that you had responded, just now seeing this.
The 048 pictured above has a super cylinder but I haven’t been able to source the carb. When it was rebuilt I put a new crank and matching flywheel to run the newer style Bosch coil. New seals. Hand cut CC gasket squish set at .022” been to long since I put a compression gauge on it to tell what the compression is. It runs like a top though even though it looks rough. The only hard part to find now is the clutch side seal and crank bearing and one of these days I will find a spare to put on the shelf just in case I ever need to tear it down again. I say that but piston and cylinder will be difficult as well. The set I found were in good condition used. I spent way to much money rebuilding it but it was fun doing the research and finding the parts.

Offline Al_Smith

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Re: 048av super.
« Reply #25 on: December 14, 2018, 04:31:56 PM »
The carb is either a Walbro WS 14 or WS 25 according to the parts lists .By the looks of things as far as availability it's about like a clutch side seal .Don't give up the ship,one will pop up when you least expect it to .

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