72thing
Chain dulling master

Boy, it's been a few years since I've been on here-- haven't really messed with saws in a while since I moved and don't burn wood anymore.
I was taking down some trees from a boom lift, and unfortunately the bar got pinched and the limb pulled saw from my hands. I watched it fall about 40' and land on a chunk of red oak. I was pretty upset, but after I took it apart, it looked like the only damage was to recoil, handlebar, and tank. The cases looked fine and I didn't see any cracks or broken magnesium.


I got some used parts off eBay, cleaned them up, and started to install the recoil. This is when I realized the saw was locked up. Mostly locked up... It will reluctantly turn a few degrees then lock up completely.
Well crap. It hit so hard on the recoil that I suspect that it bent the crank. I've never split cases before, but have watched several videos on it and it doesn't seem too bad. I was planning on getting OEM gasket set, which has crank seals.
Stoopid question: should I get new crank bearings? I don't know how likely they are to get damaged from disassembly.
If so, is aftermarket ok, or are they all chinesium? It looks like one side is available in SKF, but not sure about the other side.
I'm definitely open to advice on this, having never burnt this bridge before.
Also, would it be bad to put a thin coat of motoseal on the case halves (with the gasket of course) when reassembling? Or is this completely unnecessary?
I need a good used crank, but a little afraid of one from eBay because it's hard to see pics close enough to see if seal surfaces are ok, and afraid big end rod bearing could be no good. Anybody have a good 036 crank they need to get rid of?
This was my first saw and I definitely want to get it going again.
Thank y'all for any help.
I was taking down some trees from a boom lift, and unfortunately the bar got pinched and the limb pulled saw from my hands. I watched it fall about 40' and land on a chunk of red oak. I was pretty upset, but after I took it apart, it looked like the only damage was to recoil, handlebar, and tank. The cases looked fine and I didn't see any cracks or broken magnesium.


I got some used parts off eBay, cleaned them up, and started to install the recoil. This is when I realized the saw was locked up. Mostly locked up... It will reluctantly turn a few degrees then lock up completely.
Well crap. It hit so hard on the recoil that I suspect that it bent the crank. I've never split cases before, but have watched several videos on it and it doesn't seem too bad. I was planning on getting OEM gasket set, which has crank seals.
Stoopid question: should I get new crank bearings? I don't know how likely they are to get damaged from disassembly.
If so, is aftermarket ok, or are they all chinesium? It looks like one side is available in SKF, but not sure about the other side.
I'm definitely open to advice on this, having never burnt this bridge before.
Also, would it be bad to put a thin coat of motoseal on the case halves (with the gasket of course) when reassembling? Or is this completely unnecessary?
I need a good used crank, but a little afraid of one from eBay because it's hard to see pics close enough to see if seal surfaces are ok, and afraid big end rod bearing could be no good. Anybody have a good 036 crank they need to get rid of?
This was my first saw and I definitely want to get it going again.
Thank y'all for any help.