Piston blocker broke off...

[Ty Korrigan]

FFS!

 I've been using starter cord since Merrist Wood but recently got told I should be using this tool instead.

So I did only to find it snapped off inside the cylinder.

 So far I've not managed to winkle it out and am probably looking at removing the head of an Echo 2511 

This come on top of losing two Sugihara bars to the same fault within days on the same saw, the noses blowing on each.

Now it would be easy to say that I over tightened the chains blah blah blah but I fully well know that is not the case.

The piston blocker broke off as I was trying to replace the sprocket to install the Oregon Nano Speedcut system to replace the failed Sugihara bars.

  Before I delve into the school of YouTube, anyone removed an Echo head?

 

         Stuart

 

 

[Stere]

That thing looks likes like it might damage the piston cyclinder cord seems to make more sense to me....

 

Never seen one normally they are ones are like this I thought?

 

 

 

[Ty Korrigan]

Yes, that design makes sense.

 

[Stubby]

25 minutes ago, Stere said:

That thing looks likes like it might damage the piston cyclinder cord seems to make more sense to me....

 

Never seen one normally they are ones are like this I thought?

 

 

 

I have used the screw in the spark plug hole often with no problems . You have to pull the crank over slowly until you feel it make contact with the piston though .

[GarethM]

Always used 8mm soft rope, seen a few people use rubber/silicone fuel hose.

 

But yeah, turn it over very slowly and back it up and add more if necessary.

[William Clifford]

Re the piston blocker, we had this happen a few weeks ago - also after switching from cord as I'd got the cord stuck in the exhaust outlet previously.

 

Obviously it's too tight to just fall back out so we managed to get it near the spark plug hole, piston in the highest position, blow torched a screw and used a pair of pliers to push and turn it in so it melted / screwed its way into the plastic blocker. Then it came out on the end of the screw. Took ages of messing around trying other ways but came out in 10 mins when we tried that.

 

Back to cord for me!

[Deafhead]

Lodge rl47 spark plug and a gentle touch have always worked for me.

[kram]

8 hours ago, Ty Korrigan said:

FFS!

 I've been using starter cord since Merrist Wood but recently got told I should be using this tool instead.

So I did only to find it snapped off inside the cylinder.

 So far I've not managed to winkle it out and am probably looking at removing the head of an Echo 2511 

This come on top of losing two Sugihara bars to the same fault within days on the same saw, the noses blowing on each.

Now it would be easy to say that I over tightened the chains blah blah blah but I fully well know that is not the case.

The piston blocker broke off as I was trying to replace the sprocket to install the Oregon Nano Speedcut system to replace the failed Sugihara bars.

  Before I delve into the school of YouTube, anyone removed an Echo head?

 

         Stu

 

 

What remains of the tool, do you have a photo? Is it just the soft, lead? Face thats broke off? Whats the body made of, plastic or metal?

 

LSE sell the screw in type made of plastic for roughly 24 pence. 

 

A pair of long forceps may be able to get in there, grab

hold and pull it. 

If its not blocked and you can turn it to the ports open, get the exhaust off, and let it fall out the port

[Ty Korrigan]

Ah, thanks for the advice.

It is the entire head.

[spudulike]

Those screw in piston stoppers can damage the crown of the piston so the Stihl plastic "dog bone" one is generally the tool of choice for me but do have a modified spark plug for engines with the plug hole at the top of the cylinder - typically mowers. Rope does work well but you need to ensure the ports are covered by the piston before using it.

To remove the busted bit of the piston stop...probably just shake the saw around, a torch and a pair of tweezers. If that doesn't work, try getting it out of the exhaust port. If that doesn't work then it is a cylinder removal...grrrrr.