Stihl piston stop tool

[spudulike]

I use some cord because it's what I have. For the scooter I use a spark plug with the ceramic broken off and a M6 bolt through it but I only use it to find TDC. I cut a socket down and made a clutch spanner for the 135 which worked better than beating it with a drift.

 

I keep meaning to make one......one day:001_rolleyes:

[wisecobandit]

I keep meaning to make one......one day:001_rolleyes:

 

Me to...

I did buy a stihl clutch spanner made for the bigger stihls but it remains unused. I use the hammer and punch method mainly as they are always in arms reach rather than having to hunt around to find where ive put "the special tool" for safe keeping....

[daltontrees]

Could I ask something please about piston stops?

 

I have a number of saws but my first was a Ryobi (4046C) an amazingly good saw compared to the current models which are disposable after a couple of months. Anyway, I am trying to prolong the life of it for sentimental reasons and I have to take the clutch and drum off. Typical Ryobi, a special tool is needed for this but I can improvise with the removal tool from my angle grinder.

And I need a piston stop. Of course, being Ryobi it doesn't take a standard 14mm stop. I think it's a 10mm spark plug.

 

Here's the question. Having loads of steel M10 bolts lying around, I am tempted to use one of thse as a one-off piston stop, maybe filing down and rounding off the harsh edges at the tip. Does anyone reckon this would work, or would it damage the piston head?

[skyhuck]

I would simply use plenty of starter cord.

[spudulike]

I would simply use plenty of starter cord.

 

That's how I do it, why over complicate matters:001_rolleyes:

[daltontrees]

I would simply use plenty of starter cord.

 

Ingenious! That's what I will do. Thank you both. I am sooo pleased.

[spudulike]

Ingenious! That's what I will do. Thank you both. I am sooo pleased.

 

Before some other bright spark chips in.....just make sure you don't get the cord in the exhaust port or transfers, best to rotate the piston so it covers these ports before inserting the cord - if the muffler is removed, it is easy to see where the piston actually is:thumbup:

[WeFixIt]

Dam there I was thinking I was going to be a bright spark! Lol

 

 

Is it a chipper, is it a mower or another broken stump grinder who cares we'll fix it!

[Logan]

If you are bad, then I am mega bad, as I seldom use a piston stop at all. I use the very bad method of an impact gun (used with care) or impact via a punch and large hammer. (I know,...I know..)

 

But on the rare occasions I have resorted to a stop it has been a metal one, or starter cord. Have got a Stihl one somewhere, but not sure where.

 

Hey there. Those five methods cover it. What do you reckon is wrong with the nut runner method, as this seems to work a treat. Too much shock to bearings or rings?

 

Putting a load of torque on a piston stop worries me just as much, if not more?

 

Cheers all, John.

[treequip]

Hey there. Those five methods cover it. What do you reckon is wrong with the nut runner method, as this seems to work a treat. Too much shock to bearings or rings?

 

Putting a load of torque on a piston stop worries me just as much, if not more?

 

Cheers all, John.

 

Run them off with a rattle gun but don't use it to tighten, easy to shear the thread off