MG porting
Pinnacle OPE Member
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I know the meteor is taller on the 660 but not sure on the 046/460 but I would most likely say yes.First thing I did this morning was inventory my 046/460 parts and order most of what I need to complete a few saws. A few things I think I will have to get from the dealer (Air Filter Mount/Flange and Chain Brake linkage). Was ordering so much small stuff I had to call the Credit Card Co and tell them I had not been hacked!
Then I installed new bearings in a set of 046 case halves and temporarily put the 046 D jug on it. I first put the oil pump on the one half to act as a bearing stop, then used my HF heat gun to heat the bearing pockets and was able to installed both bearings with gloved fingers (had a hammer and socket at the ready, but no need).
Did not need to use Scotch Brite on the crank, surprisingly it cleaned up real nice with some WD-40 and a paper towel. Heated the center of the bearing on the clutch side and was able to hand push the crank in, but the next side needed a bit of tapping with a hammer, then a little bit of draw in with the case bolts.
No matter which side I do first, the case pins always seem to stop me from snugging up the second side.
You could spin the crank no problem w/o a flywheel, but I imitated something I saw TM do, tapped the crank back and forth a bit, and now it feels like I greased the bearings! Very smooth!
I put the D jug on with two bolts, and with an OEM piston the squish is .030. Wow, must have been close to .050 with a base gasket!
Anyone know if a Meteor Piston has a taller crown? Would like to get the squish down into the .020s. and I'm not going to belt sand the base!