OneStaple
ArboristSite Operative
Hey,
This is an update/continuation of a past thread about some missing parts on my Stihl 051 (http://www.arboristsite.com/showthread.php?t=66715).
Previously, I just knew I had an unfilled hole around my crankshaft near the bearings on the clutch side. I thought that all I had to add was the oil pump worm/gear. I have that part now, and there's still a gap, so something is not right.
It's probably easiest to see in the pictures, but there's a difference of 5 mm between the inside diameter of the existing oil seal and the outside diameter of the oil pump worm (30 mm and 25 mm, respectively). These are labeled in the picture, along with the outside diameter of the rubber part of the oil seal (38 mm) and the outside diameter of the metal piece that it fits into (51 mm).
I also include pictures from the Stihl 051 IPL. It lists two oil rings, #9 and #33 (#33 has an asterisk, suggesting that it's optional or a change or something). #9 is given as 25x47x7 and #33 is given as 30x42x7. Perhaps I have #33 in there now and need #9, based on the inside diameters? But in either case, the outer diameters don't match up. I also included a picture from the IPL of the page with the oil pump worm (#12, part number 1111-640-7111).
So, what gives? I have no clue what to do from here. Am I missing another part? Should I swap out the oil ring? What on earth is in there now?
Can anyone take pictures or measure theirs so I know what I'm aiming for?
Thanks,
Tyler
This is an update/continuation of a past thread about some missing parts on my Stihl 051 (http://www.arboristsite.com/showthread.php?t=66715).
Previously, I just knew I had an unfilled hole around my crankshaft near the bearings on the clutch side. I thought that all I had to add was the oil pump worm/gear. I have that part now, and there's still a gap, so something is not right.
It's probably easiest to see in the pictures, but there's a difference of 5 mm between the inside diameter of the existing oil seal and the outside diameter of the oil pump worm (30 mm and 25 mm, respectively). These are labeled in the picture, along with the outside diameter of the rubber part of the oil seal (38 mm) and the outside diameter of the metal piece that it fits into (51 mm).
I also include pictures from the Stihl 051 IPL. It lists two oil rings, #9 and #33 (#33 has an asterisk, suggesting that it's optional or a change or something). #9 is given as 25x47x7 and #33 is given as 30x42x7. Perhaps I have #33 in there now and need #9, based on the inside diameters? But in either case, the outer diameters don't match up. I also included a picture from the IPL of the page with the oil pump worm (#12, part number 1111-640-7111).
So, what gives? I have no clue what to do from here. Am I missing another part? Should I swap out the oil ring? What on earth is in there now?
Can anyone take pictures or measure theirs so I know what I'm aiming for?
Thanks,
Tyler