Chainsaw Repair

Ok I got my seals for the 3750 and my dial calipers.  The seal it self only had the part number on it and no other reference.

I measured the outside diameter of the seal it self.   It is 35mm
I then measured the crankshaft for Inside diameter.  It is 14.25mm
I then measured the thickness of the seal which is important because the oil pump has to sit
over it.   It is 4.8mm

   I then  made the same measurements with my other calipers that give thousanths.
    OD.   1.380"
    ID.    .562"
wide.     .190"

So let the games begin the first to find a replacement wins everyones appreciation.   Thanks guys I do not have time right now to research it but will start tonight when I get home.