fletcher969
ArboristSite Lurker
Hi all,
I'm doing an MS361 rebuild due to a couple of air leaks. One was in the cylinder base gasket, the other was on the clutch-side oil seal. I replaced the oil seals, and I matched the depth of the original seals; however, I noticed after the fact that the clutch side crankshaft bearing isn't turning (i.e. the balls don't move when the shaft is rotated like they do on the flywheel side). The shaft turns easily, there is no play, and there are no signs of prior heat damage to the saft or bearing. The rubber portion of the seal is about 2mm below the clip groove (again, right where the previous seal was seated), and it isn't bulged out (i.e. it's fitting properly), so it appears to be installed correctly, and not too deeply seated that it would be butted against the bearing (and from what I recall, I'd have to bury the seal pretty deep to hit the bearing on the clutch side).
Was the bearing acting this way prior to the new seal? I couldn't tell you. I only checked the play in the crankshaft, and I checked to make sure it was turning easily without symptoms of damage. I never thought to check to make sure the bearing balls were turning inside their tracks.
Anybody have any ideas, or alternatively, is there anything I might try to manually turn the bearing, or free it up?
Thanks.
I'm doing an MS361 rebuild due to a couple of air leaks. One was in the cylinder base gasket, the other was on the clutch-side oil seal. I replaced the oil seals, and I matched the depth of the original seals; however, I noticed after the fact that the clutch side crankshaft bearing isn't turning (i.e. the balls don't move when the shaft is rotated like they do on the flywheel side). The shaft turns easily, there is no play, and there are no signs of prior heat damage to the saft or bearing. The rubber portion of the seal is about 2mm below the clip groove (again, right where the previous seal was seated), and it isn't bulged out (i.e. it's fitting properly), so it appears to be installed correctly, and not too deeply seated that it would be butted against the bearing (and from what I recall, I'd have to bury the seal pretty deep to hit the bearing on the clutch side).
Was the bearing acting this way prior to the new seal? I couldn't tell you. I only checked the play in the crankshaft, and I checked to make sure it was turning easily without symptoms of damage. I never thought to check to make sure the bearing balls were turning inside their tracks.
Anybody have any ideas, or alternatively, is there anything I might try to manually turn the bearing, or free it up?
Thanks.