STIHL Genuine 064 066 660 Heavy Duty 1.15mm Oil Pump Drive Shaft # 1122 647 0602

Here we have a fantastic product that should have been standard on all of the 1122 Series of saws, but alas it was not and therefore many of these great saws have been burning up bars and chains since new due to lack of oil for Australian conditions.
This one fits the 064, 066E, 066, MS640, MS650, and the MS660 saws.
This shaft quite simply develops more of a "pulse" as it has a longer stroke to it, STIHL says that it is 1.15mm compared to the .9mm standard pump shaft but to me the difference seems to be more than that.
This really is a must have if you serious about getting the most out of your machine.
Its not that hard to fit, but it can be a bit fiddly as you need a fine pin punch and a bit of know how, if in doubt give me a call.
Oh the last photo shows the original pump piston at the bottom and you can see the difference (less stroke).
Here if you need one anyways.
 
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Thanks for looking  :)
 
tags: STIHL 1122-647-0602 Heavy Duty Oil Pump Drive Gear / Pump Piston, etc