Author Topic: Stihl MS 660  (Read 159 times)

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Offline ggross

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Stihl MS 660
« on: May 20, 2017, 04:48:43 pm »
Folks, have a repair question. I have a Stihl MS 660 that has had 2 new installed piston and cylinder assemblies installed. After the initial start up both times, I lose compression from frozen rings, and the latest, frozen rings and damage to the lower end of the piston. Any advise on why?

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Offline mdavlee .

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Re: Stihl MS 660
« Reply #1 on: May 20, 2017, 05:42:46 pm »
Squish too tight? Are you using a base gasket?

Offline ggross

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Re: Stihl MS 660
« Reply #2 on: May 20, 2017, 05:47:42 pm »
Yes, on the base gasket.

Offline Cut4fun .

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Re: Stihl MS 660
« Reply #3 on: May 20, 2017, 05:50:18 pm »
oem or aftermarket kits?  p+c kit?
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Offline Cut4fun .

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Re: Stihl MS 660
« Reply #4 on: May 20, 2017, 05:51:52 pm »
Same saw as this one?  So it was aftermarket meteor kit?  http://chainsawrepair.createaforum.com/stihl/piston-ring-instalation/msg77394/#msg77394
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Offline ggross

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Re: Stihl MS 660
« Reply #5 on: June 19, 2017, 02:12:19 pm »
Folks, what tool are you using to remove seals?

Offline Cut4fun .

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Re: Stihl MS 660
« Reply #6 on: June 19, 2017, 04:38:26 pm »
I'm a redneck repair guy.  Poke hole and then drywall screw and pull the screw with pliers.

Some take a flat screwdriver and ground a hook in the end to pull with.
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