You guys won't believe what I found in the scrap bin this time... (041G)

[Hddnis]

So you're saying that in years past the horseshoe was still attached to some horse's hoof, but now you've finally managed to shake him loose and were lucky enough to keep the horse shoe?



:greenchainsaw:




Mr. HE

 

[blackoak]

I have seen a 041G new, made from NOS parts.
Get it up and running, post a video!!!

That NOS 041G had a hell of price tag on it if it's the same one I'm thinking about.

 

[Brmorgan]

So you're saying that in years past the horseshoe was still attached to some horse's hoof, but now you've finally managed to shake him loose and were lucky enough to keep the horse shoe?



:greenchainsaw:




Mr. HE

Something like that.

Actually I have some very good news and some less good news - the 041G is in fact NOT seized; when I went down to check the chain pitch (which IS 3/8" and appears to fit the sprocket) I decided to pull the plug on a whim. About a teaspoon of bright red bar oil oozed out the plug hole. The saw turns over really nice and smooth without the plug in; whether or not there's any scoring I can't tell yet. Also I checked for spark and there is; it's not as hot as I'd like to see, but the points (I assume) could probably use a good cleaning.

Sooo..... Unless the bar oil got in the cylinder by being poured down the open intake, it looks like I'll be doing a full teardown and case split on this thing anyway. That makes me a bit nervous. I'll probably drain all the tanks, rinse them out, and run some solvent through the cylinder to get rid of the oil, and try to get it to fire as-is. Before tearing it apart though I'll refill the oil tank and see if it's actually leaking into the case or not. I might see if my friend will help me do it at his shop some Sunday afternoon though; he has a few more tools and an extra set of experienced eyes might be useful. I'd let him just take care of it for me since I don't have that much time right now, but I want to take a bunch of pictures.

Same case gasket as a regular 041, or no? I haven't put them side by side yet. And how thick should the case gasket be if I need to make one myself? I have a roll of gasket paper that I believe is 1/64" thick.

Also, is replacement handle tubing available from Stihl etc. or should I just find some good handlebar wrapping foam tape from a bike shop etc.?

 

[bigbadbob]

That NOS 041G had a hell of price tag on it if it's the same one I'm thinking about.

It is the one in Marysville WA.

Brad I think Lakeside posted some where on putting on that rubber on the handelbar, using compressed air, it was slick.
I still have a box of 041 parts and have access to another 041 sitting in a shed a few miles from parrisw.

 

[bobt]

Brad,,,,Good to hear that the 041G is not siezed!!!! That chain oil in the cylinder may have been a blessing in disguise!!!!!

Bar oil in the cylinder and crankcase on non-gear 041's is a common thing these days.

IT DOES NOT INDICATE A BLOWN CRANKCASE GASKET,,,,not until you rule out the oiler. That's good news for you.

You should not even think of splitting the crankcase at this point in time before you remove the oiler and replace the rubber seal and little o-ring. They deteriorate on saws that are this old, and leak bar oil into the crankcase. When you try to start the saw it locks up tight as a drum,,,,,,just like the symptoms of a siezed piston and cylinder.

The oiler looks to be right next to the oil fill cap on your saw, which is different from regular 041 models. ( the oiler is on the front of them)

Just remove the retainer clip,,,screw one of the regular 5mm screws from the starter into the small threaded hole on the end of the oiler,and pry the oiler out using the screw for leverage. It slips right out no turning necessary. There will be a black rubber seal that sometimes comes out with the oiler assembly, but most often gets left in the housing. There will be two little metal inserts in holes in the seal. Don't lose them. Then tou can pull the plunger out of the body of the oiler and get at the o-ring.

Finding the parts may be trouble. My 041 farm boss is sitting on my work bench right now with exactly the same problem. I live in the middle of nowhere, so getting parts is my problem. If you find a source for the parts, let me know,,,ok?

Hope that helps,,,,again don't split the case until you work on the oiler.

Bob

Additional thought: Bright red colored oil???? That could have come from the gear drive. Do you know for sure if the oil in the cylinder came from the oil tank, or did it come from the gear drive? If it came from the gear drive it may be something pretty simple as a crankshaft seal,,,,just an additional thought.

 

[Brmorgan]

Yeah, while I was lying in bed last night, I remembered when I was working on my other 041 project my old friend telling me that the oiler seals were a common failure on these and that it would dump oil into the case, and he sorta told me how to go about replacing one as you described. If that is the problem, finding parts shouldn't be an issue assuming it's the same as a vanilla 041 oiler. I have two busted-up 041AV cases downstairs, one of which used to belong to my 041 Super and I'm all but 100% sure the oiler should be fine. Failing either of those, my friend has probably a dozen or more 041 carcasses lying around.

I don't think it was gear oil in the cylinder; it was exactly the same color as what I drained from the oil reservoir, and seemed much too thin for gear oil by my standards. Anyway I did get it running tonight; it actually runs like a top now! I started another thread with a video of it over here:

http://www.arboristsite.com/showthread.php?p=2030013

Let me know what parts you're looking for. I have a few spares and I have access to a few as well; also I'm sure the other Bob who posted above could hook you up with a part or two - my non-AV 041 was built mostly out of a saw-in-a-box that he gave me.