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Chineseum engineering for optimal oil retention ! Have a cheap aftermarket cylinder that looks like this, athough not as severe.

No other marks beside these on conrod. Needle bearing is pretty much intact. Wrist pin has only these 2 little marks.

Thought that this might be interesting. An unusual failure with a Stihl 044 10mm. Been rattling at idle, so i figured big end bearing gave out but NO. Indentations from a bearing needles on the small end / wrist pin bearing side of the connecting rod. This is a high-hour saw, but I've...

Dont know if us measurements are correct, as i have measured with metric caliper then used google to convert to imperial.

Approximately a year and a half ago, my Gx200 (clone engine) rototiller was experiencing issues with smoking and oil consumption. After some consultation, I replaced the piston rings, which appeared to solve the problem. However, it started smoking again and I have now decided to replace the...

Husqvarna 236 Is anything missing in this hole? Plug, duckbill valve or the brass thingy?

50:1 or 1 part of oil per 50 parts of fuel, that is leaner than lets say 1 part of oil per 32 parts of fuel, smaller number = richer mix. Higher attitude = thinner air, which requires less fuel = clockwise But i wouldnt recommend adjusting carburetor by yourself if you dont well understand how...

Well, bearings used are probably one of the standardized sizes. But what bothers me more is, usually when a big end bearing fails, connecting rod hole becomes oval and should be replaced as well, but ive never seen a chansaw conrod being sold separately.

I guess this had to happen... once.. Saw has worked for maybe 5-ish hours after rebuilding it a year ago. Brand new Meteor piston and Caber rings. I am not entirely sure, but i believe i did check ring gap, and deburred the port. After grinding, port width ended up being 32mm or 61.5% of total...

I tried to center it as good as possible.

As sintered metal is quite porous, i left it "soaking" in paint thinner to remove any oils and then heated it up with heat gun. When i tried welding it began to splatter and burn, as it still had some oils and impurities, so i left it on wood stove for an hour or so, after that it welded...

2018. fairly Low hour first gen. Husqvarna 135 Im suprised to see a CRANKSHAFT made of sintered metal.. part that must endure most stress and abuse. I mean, these are low-end saws, but this is just...wow. Soft steel shaft simply pressed through and press squashed. Who would have thought it...

That was my first guess, but it doenst have embossed husqvarna logo on top cover, and no chain brake. Thats why im doubting, maybe 280CD ?

Bought this yesterday, with bar and chain for 30$. Starts and runs. However, number plate is missing and there is absolutely no other markings indicating what model this should be. How to tell is it 180, 280, 380, 480 or something else? Cylinder is 52mm in diameter. with stroke between 37...

How engines work according to EPA...

Damn, thats smart, and i did just that, used FW to drive the seal as deep as it goes, then put thin copper gasket under FW to go just a tad deeper. And now it fits! Both 064s came completely dissasembled, and this is the first one im assembling, so i didnt have a reference point for assembly. I...

Ok, ive tried putting 064 flywheel on another 064 crank, it fits, then i tried 044 fw on that same crank and it FITS, turns out the taper is completely the same, BUT fw hits the oil seal and cant go down further. So i just need a shorter tapered flywheel. ... ? How deep should oil seal be? Its...

Im pretty sure its an 064 Stroke is 40mm, so its not a 044 crankshaft slapped in neiter.

Thank you for that. Ok, according to that thread, original flywheel was "1122 400 1206" ... or ... ""1122 400 1207" Coil is Bosch E1-V "1122 400 1300" And now just to figure which another flywheel fits on conical part of the crank.

So ive acquired this, appears to be 1987 Stihl 064 Arctic, but flywheel, as I have a spare 064 Flywheel laying around, i figured i could just convert it to a regular 064, but then realized that flywheel does NOT fit on a cone part of the crankshaft. What flywheel goes for this type of...