Stihl 034 Super AV EQ

@srcarr52 can fix it. Not sure if he’s a member here as his name didn’t highlight. He’s on the other forums and fb groups. Probably end up costing similar to a replacement case. Especially as you’ll probably need to replace both halves so the deck height matches

 

So I found a possible candidate. 036 case. I asked a bunch of questions.

Here's what I asked:

Hi. I've purchased parts from you before. Regarding this crankcase, are the bearings good? Any wiggle if you move the crankshaft up and down? Do you know why the paint is peeling so significantly at the front of the case? Do you have any other information on the history of this saw? I have an 034 Super that had a chunk of magnesium break off on one of the pins for the chain brake mechanism. Not sure but it looks like this case may have been repaired in the same exact spot. I've attached a pic of where mine broke. Has this crankcase been repaired in any way? Could you please provide the serial number of the case? Thanks.​

And this was the one line response I got. Sheesh.

no problem with item we part many thousands of unites every year have no idea of history​

I'm not in a rush but I figured I should take things off so I can compare the two side by side and from what I can tell I think I can use this except the bar adjustment cutout in the case is different on the 036....which is not a big deal.....the shape of the case near that broken pin on the 036 is slightly different but I'm pretty sure it is in the same spot but obviously impossible to tell from just pics.

Also I'm a bit concerned about the paint peeling so significantly from the front of the case. Trying to figure out what could have caused that.

036 on the left, 034 Super on the right. The angles aren't perfect but what are ya gonna do......









And here are some pics of the Meteor piston. I don't know how many hours I put on this saw but it looks pretty good to me except for the bit of carbon buildup on the top of the piston. The muffler I painted with that hi temp paint used for firepits held up perfectly too.

 

Yeah budget is an issue so the more I can do the better.......I think I'll take a chance on this case. Thanks for the suggestion.

 

Paint peels from being a tick too long in a hot ultrasonic cleaner. It’s ok. Ford Lt Gray tractor enamel in a spray can is a close match.
If the bearings feel perfect I’d use them. If not, the fw side bearing is prone to earlier failure and is a standard bearing at $7 for Nachi or NTN on eBay.

 

Thanks. There's also a regular 034 case I see.......I know the 034 and the 034 Super have the same stroke and the 034 has a 46mm bore vs the 48mm for the super.......but is the crankcase the same size? Is it just the jug that is different? i.e. can I use a 034 and just use my bigger 48mm cylinder and piston on it?

 

I think they’re all interchangeable “if” you have the correct parts from each saw to be able to make a runner. 036 has the side tensioner, some 034 had a front tensioner. And there are differences in the muffler/cylinder flange depth. But stroke is the same.
BuckthornBonnie knows considerably more about this particular model than me

 

Yeah the side tensioner is definitely slightly different in shape between the 036 and the 034 Super. I think I recall something about a muffler spacer needed in a certain case.

 

I use mine probably more than any saw I have. They are great in power and weight

 

She's a keeper. Throw that 20" bar on there and hit it

 

Magnesium is AC tig weldable special rod needed JB

 

Thanks.

Yeah all I have is a 225amp 240v stick welder so a donor crankcase would probably be the cheapest and easiest way to get her up and running.

 

He has done several jobs for me and is excellent.

I would personally scrounge for a local 1125 matching crankcase set if that pin area is really bad. I’ve seen that failure before but have never experienced it myself.

 

lol, I have some knowledge and am happy to help out.
There were crankcase variations but nothing that affects the case mating surface. That’s the reason why all 1125s take the same crankcase gasket. A side tensioner is preferred but see what’s kicking around. Ebay listings have gone way up in price since 2018ish.
I have used cases that aren’t a matched set for this series but I don’t recommend it. The cylinder deck height on one of them was off. Centering the crank took longer than usual, too.

 

Yes, the spacer is needed depending on cylinder-muffler-case pairings. Not a deal breaker as those spacers are around and are easy enough to deal with. In fact… I like having them lol.

 

I bought a ms360 case from the same guy who was offering the 036. I figured it's a bit newer and the paint on the ms360 looked a lot better.

I know the chain tensioner cutout is different and also there seems to be an extra bit of material on my 034 Super above the spring for the chain brake. Hopefully my clutch cover fits properly.

$80 otd. "Good working condition". We shall see.

 

If you’d like to get some of your money back and have an extra crankshaft around to sell, I’d be interested.

 

Good choice getting the full case, btw.

 

Recoil bolt size?

 

Not sure but it's the same as a 192/200t be cause I used the same flywheel smackaroo tool that threads on and it fit on the 034 S.

I believe the spacer is needed dif you try and use an 036/360 muffkin on an 034/034 S case but it would seem not the other way around. Is that how you understand it?

I will have to see what the situation is with the crank and bearings that come with this case. If no crankshaft wiggle and it runs smooth then I would consider parting ways with the original 034 S crank and bearings.

 

I mean the recoil (starter) screws that hold the recoil to the case half. Some are 4mm for this series (older 034s).
There are workarounds for either situation, though.