Stihl MS 170 Scored Piston

[Richard Cude]

Piston and cylinder badly scored on exhaust side.
Stihl Parts $150+_ ?
Amazon Parts $40?
Trash?

 

[Vintage Engine Repairs]

Not worth oem. Try Amazon or Ali express for a whole new top end. Any problems both companies are easy to get refunds from. Ali express is cheaper than Amazon, but it takes longer to arrive. Normally 12 days max

 

[singinwoodwackr]

Piston and cylinder badly scored on exhaust side.
Stihl Parts $150+_ ?
Amazon Parts $40?
Trash?

Not worth OE. These are $100 saws when fixed up. I have a pile of them to rebuild…bought for $20ea. There are decent p&c kits for cheap. $35, complete motor from Duke’s.

 

[SteveSr]

Piston and cylinder badly scored on exhaust side.
Stihl Parts $150+_ ?
Amazon Parts $40?
Trash?

FIRST you need to figure out WHY it burned up i.e. straight gas, bad gas, air leak, dull chain, etc.