034 Breakdown with PICS-- UPDATE!!!!

[ReggieT]

Got the opportunity to buy a 034 AVEQ for about $40 with a scored cylinder & damaged piston.
Was wondering about the 036 kit swap as opposed to going back with a 034 piston/cylinder kit.

My concern especially as a novice is the RPM's; the 034 registers 13,500 RPM's with 56.5 cc's, while the 036 comes in @ 10,500 RPM's & 61.5 cc's.
Will the loss in RPM's in the 036 negate power in the cut?
Also the bore is bigger on the 036.

What is you guys experience with both saws and what are your suggestions...who offers the best deal on rebuild kits?
Just trying to work smart and not hard or stupid!

Now I just pulled up this contradictory info from the Stihl site:
It shows the 034 & 036 with the 13,000 RPM's what gives???

STIHL single cylinder two-stroke engine with special impregnated cylinder bore 034 036, 036

QS Displacement: Bore: Stroke: Compression ratio: Engine power to ISO 8893: Max. torque: Max. permissible engine speed with bar and chain: Mean idle speed: Crankshaft: Main bearings: Crankshaft journal diameter: Big end bearing: Piston pin diameter: Small end bearing: Connecting rod length: Rewind starter: Starter rope: Clutch: Diameter: Clutch engages at: Crankcase leakage test at gauge pressure: under vacuum: 56.5 cm3 46 mm 34 mm 9.5:1 3.0 kW (4.1 bhp) at 9,500 rpm 3.5 Nm at 6,500 rpm 13,000 rpm 2,700 rpm Two-part, drop forged Two deep-groove ball bearings 14.4 mm Needle cage 10 mm Needle cage 58 mm Pawl engagement with automatic starter rope rewind mechanism 3.5 mm dia., 960 mm Centrifugal clutch without linings 76 mm approx. 3,500 rpm 0.5 bar 0.5 bar

61.5 cm3 48 mm 34 mm 9.5:1 3.4 kW (4.6 bhp) at 9,500 rpm 3.7 Nm at 6,500 rpm 13,000 rpm 2,700 rpm Two-part, drop forged Two deep-groove ball bearings 14.4 mm Needle cage 10 mm Needle cage 58 mm Pawl engagement with automatic starter rope rewind mechanism 3.5 mm dia., 960 mm Centrifugal clutch without linings 76 mm approx. 3,500 rpm 0.5 bar 0.5 bar


Thanks
Reg
BTW...MERRY CHRISTMAS EVERYBODY!!

 

[scallywag]

Swap a 48mm 034 'super' piston & cylinder onto it!

 

[ReggieT]

Swap a 48mm 034 'super' piston & cylinder onto it!

Hmmm....same bore & stroke as the 036 huh?

 

[scallywag]

Hmmm....same bore & stroke as the 036 huh?

Yep!.....Let the hunt commence!

 

[ReggieT]

Yep!.....Let the hunt commence!

Dam It Man!

 

[drf255]

You don't need an 034 Super jug in particular, any 036 jug will fit.

Don't worry about RPM. The saw is screaming for a muff mod.

Muff mod, Advance timing, set squish, adjust carb and you will have a beast of a saw.

Having it ported will add a special quality to it and give you a bigger smile.

 

[scallywag]

I believe the stock 034 top cover needs a small modification to clear the 036 cylinder?

 

[drf255]

I believe the stock 034 top cover needs a small modification to clear the 036 cylinder?

I'd like to confirm this as well.

My understanding is that this is true of an 024 to 026 conversion, but not 034 to 036.

I'm about to do one.

 

[scallywag]

I think the muffler need some kind of spacer and the top cover needs a mod when fitting the 036 jug ?

[Edit] The spacer in question. 1122 145 1200.

 

[drf255]

You running that 43B yet?

 

[scallywag]

You running that 43B yet?

#43526 on the to do list!!

 

[scallywag]

It would appear the spacer is also required when using the 034 Super jug?

 

[drf255]

Maybe that's in Oz.

Everything upside down there.

 

[scallywag]

The spacers listed in the 034 IPL.
Check out......Mastermind meets the 034/036 hybrid.

 

[scallywag]

Everything upside down there.

Its a good thing saws have diaphragm carbs!

 

[67L36Driver]

I only built two 034 into 'MS360' using Farmertec top end kits. Generally went well and ran just fine.
Second one needed a rib under the top cover whittled on.
Access holes for cylinder bolts need a bit more clearance.

Same goes for 026 to MS260 switcheroo.

Clients were made happy.[emoji6]

 

[ReggieT]

Well my Stihl Saw Shop wanted $150 plus tax if they put in new crankshaft seals.
I asked what about IF I buy it AS-IS?
$42.00 Total! BOOM!
I'm going to change out the plug, air filter, fuel line, fuel filter, check the piston & cylinder for issues...other than the crankshaft seals what else would you guys suggest that I check?
This is my project saw & I'm in NO RUSH.

Here are the pics.

 

[Wood Doctor]

Here's mine. I've since added an outside bumper spike in addition to the 036 top end. That's also a new outside handle and chain brake. Sorry for the missing muff cover, I added that later also. This saw was in sad shape at one time.

 

[scallywag]

Nice!....... I see your saw is wearing a 034 Super badge, was it a 036 jug you fitted or 034 Super?..... Did you have to use the exhaust spacer?

 

[Wood Doctor]

Nice!....... I see your saw is wearing a 034 Super badge, was it a 036 jug you fitted or 034 Super?..... Did you have to use the exhaust spacer?

I went with the 036 jug but it had no decomp valve. I eventually found an exhaust that worked without a spacer. I think HLSupply has them. Dang, it's been awhile. I recall the first one I ordered failed. There is a difference. Take a look:

The second one they sent me worked.