challenger
Cheese is good.
I took apart the MS 460 I am working on for a friend but before tearing it down I sealed off the exhaust port and the intake. I applied pressure and vacuum through the fitting for the impulse tube and the crank case held pressure and vacuum. I sprayed soapy water all over the saw and didn't see leakage.
I have 2 places I may be able to place blame on why the cylinder & piston need replacing. The first is the impulse line to the carburetor. This saw recently had a new gas tank installed and I am suspicious that the impulse line was not installed properly. Could this allow the saw to run yet make it so lean it fried the piston?
The next area I think could be trouble is the muffler gasket between the 2 parts. The muffler was banged up (any saw not have a dented muffler?) and the gasket is broken where the two parts mate. I am wondering if this could allow rain water to enter the exhaust port if the saw was in the rain and in a position that could allow water to collect in it?
I had to order a complete seal kit in order to get the muffler gasket. Is it wise to reseal the saw even though it doesn't leak. I would not think so but thought I would ask some with more experience.
Thanks
Howard
I have 2 places I may be able to place blame on why the cylinder & piston need replacing. The first is the impulse line to the carburetor. This saw recently had a new gas tank installed and I am suspicious that the impulse line was not installed properly. Could this allow the saw to run yet make it so lean it fried the piston?
The next area I think could be trouble is the muffler gasket between the 2 parts. The muffler was banged up (any saw not have a dented muffler?) and the gasket is broken where the two parts mate. I am wondering if this could allow rain water to enter the exhaust port if the saw was in the rain and in a position that could allow water to collect in it?
I had to order a complete seal kit in order to get the muffler gasket. Is it wise to reseal the saw even though it doesn't leak. I would not think so but thought I would ask some with more experience.
Thanks
Howard