What's on your bench?

[Woodwackr]

Someone brought this in today, says no spark. I did check the coil (transformer in the air box) and it seems O.K. around 2.6K ohms.

View attachment 452765

View attachment 452766

I didn't go any further than that and he took it with him...Any idea what model this is? I couldn't find any other I.D. on the saw.

Any ideas?

Mark

 

[heimannm]

Thanks to all for your replies and help. When he brings it back we'll see about the next steps.

Mark

 

[TheDarkLordChinChin]

My 2018 ms462 died exactly a year and 2 days ago.
The decompression valve came flying out on a frosty morning while the saw was cutting big ash.
Since the evening of that day the saw has been sitting in my friends shed. He's a man in his mid 70s. A very eccentric fellow who is a trained heavy diesel mechanic and a more than competent small engine mechanic. In fact, he was the original mechanic at the local stihl dealership, he helped them set up their business and worked there for 25 years before retiring.

I want to get my saw back running, I've waited for him to fix it for over a year now so at this stage I'm just going to do it myself.
Our original plan was to heli coil it, which I have little orno faith in. Time certs are another thing I've heard of but don't know what it is.

Really and truly the best option is a new top end. I can get one from Poland for 350 ish or from Greece for a bit more. There's no point trying any of the dealerships here, it will take them months to get it (if they even remember to order it at all) and then they'll charge an arm and a leg for it.

If I'm not mistaken didn't stihl change the 462 a bit some time ago? Will a new top end fit my 2018 saw? This is the one I'm looking at but there are others available.

 

[eric4]

What do y'all think about the recoverability of this cylinder. The dings on the food bother me less than the plating around the exhaust being chipped.

It's a 562xp

 

[heimannm]

Mark

 

[Woodslasher]

What do y'all think about the recoverability of this cylinder. The dings on the food bother me less than the plating around the exhaust being chipped.

It's a 562xp View attachment 453015View attachment 453016

Get it ported, squish band cut will get rid of most of the dings, port work will fix the exhaust.

 

[Woodwackr]

What do y'all think about the recoverability of this cylinder. The dings on the food bother me less than the plating around the exhaust being chipped.

It's a 562xp View attachment 453015View attachment 453016

Looks done
Any damage to the rest of the cyl walls?

 

[eric4]

Looks done
Any damage to the rest of the cyl walls?

The walls are clean as can be, and the roof dings don't really seem to protrude downward... But the damaged exhaust seems the most concerning. I figure it wouldn't hurt to try opening the exhaust until the plating damage is ground away? Seems like 1/16" above and below would clear it up.

 

[hacskaroly]

What do y'all think about the recoverability of this cylinder. The dings on the food bother me less than the plating around the exhaust being chipped.

I have a cylinder that has those dings and some of bits of the ring still embedded in it...lol

 

[Woodwackr]

The walls are clean as can be, and the roof dings don't really seem to protrude downward... But the damaged exhaust seems the most concerning. I figure it wouldn't hurt to try opening the exhaust until the plating damage is ground away? Seems like 1/16" above and below would clear it up.

As suggested, then, the cyl could be ported. Or, at the least, the ex port can be re-beveled.

 

[eric4]

As suggested, then, the cyl could be ported. Or, at the least, the ex port can be re-beveled.

I'm gonna try a $10 china piston, after beveling out the exhaust. Figure it's worth the experimentation.

Got some long burr bits on order to reach!

 

[SimonHS]

My 2018 ms462 died exactly a year and 2 days ago.
The decompression valve came flying out on a frosty morning while the saw was cutting big ash.
Since the evening of that day the saw has been sitting in my friends shed. He's a man in his mid 70s. A very eccentric fellow who is a trained heavy diesel mechanic and a more than competent small engine mechanic. In fact, he was the original mechanic at the local stihl dealership, he helped them set up their business and worked there for 25 years before retiring.

I want to get my saw back running, I've waited for him to fix it for over a year now so at this stage I'm just going to do it myself.
Our original plan was to heli coil it, which I have little orno faith in. Time certs are another thing I've heard of but don't know what it is.

Really and truly the best option is a new top end. I can get one from Poland for 350 ish or from Greece for a bit more. There's no point trying any of the dealerships here, it will take them months to get it (if they even remember to order it at all) and then they'll charge an arm and a leg for it.

If I'm not mistaken didn't stihl change the 462 a bit some time ago? Will a new top end fit my 2018 saw? This is the one I'm looking at but there are others available.


View attachment 452962

Might be cheaper to send it to @srcarr52 (Shaun Carr) and ask him to weld up the hole and re-cut the thread. Or leave it welded up and delete the de-comp.

Was the stripped de-comp the only damage?

I don't think a new version cylinder will fit on your saw, so you will need to find an early version or fix the one you have.

 

[srcarr52]

Might be cheaper to send it to @srcarr52 (Shaun Carr) and ask him to weld up the hole and re-cut the thread. Or leave it welded up and delete the de-comp.

Was the stripped de-comp the only damage?

I don't think a new version cylinder will fit on your saw, so you will need to find an early version of fix the one you have.

M10x1.0 helicoil is the best option. They really work well for that small thread pitch and the outer diameter of the repair coil is less than the sealing crush washer of the decomp valve.

 

[TheDarkLordChinChin]

Might be cheaper to send it to @srcarr52 (Shaun Carr) and ask him to weld up the hole and re-cut the thread. Or leave it welded up and delete the de-comp.

Was the stripped de-comp the only damage?

I don't think a new version cylinder will fit on your saw, so you will need to find an early version of fix the one you have.

That's another good idea, thanks. Yeah I think that's the only damage but I'll have to look at the saw again to know for sure, it's been over a year since I seen it.

M10x1.0 helicoil is the best option. They really work well for that small thread pitch and the outer diameter of the repair coil is less than the sealing crush washer of the decomp valve.

I don't trust heli coils. It seems to work if the right man does it but I don't know who that is. A friend had a heli coiled plug come flying back out on a 462 that was repaired by the best saw mechanic around here.

 

[eric4]

I've got a 562xp (2258) on the bench today, that has corrosion in the crankcase unfortunately... It seems to be interfering with the crankshaft balancer (counterweight?) as it moves along the bottom of the case. It still rotates fully, but definitely has some drag when it apexes the bottom, and seems to be on just one side.

Is there a method to clear this up, outside of splitting the case? The only ideas I could come up with inside my empty noggin, is to lightly grind down the balancer until it clears the case...Or glue some emery cloth to the crank and rotate it until it clears up the case corrosion.

 

[Partner]

I've got a 562xp (2258) on the bench today, that has corrosion in the crankcase unfortunately... It seems to be interfering with the crankshaft balancer (counterweight?) as it moves along the bottom of the case. It still rotates fully, but definitely has some drag when it apexes the bottom, and seems to be on just one side.

Is there a method to clear this up, outside of splitting the case? The only ideas I could come up with inside my empty noggin, is to lightly grind down the balancer until it clears the case...Or glue some emery cloth to the crank and rotate it until it clears up the case corrosion.

It will also make room for itself while you work

 

[av8or3]

M10x1.0 helicoil is the best option. They really work well for that small thread pitch and the outer diameter of the repair coil is less than the sealing crush washer of the decomp valve.

+1 on the heli-coil. I’ve had perfect results with them. I keep them in about 4 sizes.

 

[Partner]

I don't have these knobs for the heli, but I screw them in with red glue using pliers

 

[Rich Fife]

Drill and tap to the next size and plug the decomp. Fixed.
Might work.

 

[JKNW]

Big block (180 engine) swap time for this little 170.