Chainsaw Repair

The 10 series of McCullochs are by far the easiest saws ever made to work on .On a non AV mount style such as the 10-10 I can have one completely disassembled in about 20 minutes .

Scuffing on the intake side of the piston is not uncommon because of the rather poor design of the air filter .Not to worry you'll never know it's scuffed once it's running .

Now you do as you like but to change seals I usually take the engine apart rather than  dig them out with a drywall screw .It's a clam shell design with 4 small bolts on the outside and 4 larger inside the oil tank which is the front of the crankcase .

If you can't get the flywheel off once to pull it apart a little tap of a hammer usually knocks it loose .Not big ball peen hammer now .A small dead blow,wooden mallet ,lead hammer or block of wood cushioning the blow .