Piston stop

[huskykev]

Any idea where I’d pick one up? Managed to cut the end of the piece of starter cord off yesterday in the pot trying to change the sprocket on my 395 so I also need to get that out too...

[Haironyourchest]

Try a battery impact driver with the right socket, needs to be 1/4 hex shank. No need of a piston stop then.

Edited September 4, 2018 by Haironyourchest

[Stubby]

I always found compression to be enough ( make sure de comp is popped out ) . Right size ring spanner and a sharp tonk with a no5 copper mallet and off she spins .  Don't forget its LH thread .

[huskykev]

Try a battery impact driver with the right socket, needs to be 1/4 hex shank. No need of a piston stop then.

Piston stop is a good bit cheaper in fairness...

[spudulike]

L&S will have them in stock! 

[Yournamehere]

3 hours ago, huskykev said:

 

Piston stop is a good bit cheaper in fairness...

 

... and this is cheaper than that!

[Sawchip]

Decent cord is no bad thing to use for kindness to the piston crown if you are going to use a "contact" form of stop. I never use a piston stop myself as i have adjustable air tools and tend to use just the compression of the saw to work against as my go to method. On the odd occasion (and if the manual says "never use a impact wrench" ..many do) i have put some soft cord (no fluffy ends ) in the top end to help as some cushioned resistance against a spanner and clutch tool. Not using a piston stop (metal or plastic ) saves putting all the stress on the plug hole threads as a bonus. 

Edited September 4, 2018 by Sawchip

[bmp01]

28 minutes ago, Sawchip said:

Decent cord is no bad thing to use for kindness to the piston crown if you are going to use a "contact" form of stop. I never use a piston stop myself as i have adjustable air tools and tend to use just the compression of the saw to work against as my go to method. On the odd occasion (and if the manual says "never use a impact wrench" ..many do) i have put some soft cord (no fluffy ends ) in the top end to help as some cushioned resistance against a spanner and clutch tool. Not using a piston stop (metal or plastic ) saves putting all the stress on the plug hole threads as a bonus. 

+ 1

With particular emphasis on getting the cord to do a lap of the piston - spread the load as much as possible.

[Wonky]

Piston stops (metallic type) have been known to stress pistons to cracking, 

starter cord (enough and with the odd few knots ) in the hole when the  piston is in the way up and passed the exhaust has worked for many. If it compresses and turns over you need a bit more ?