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Several people have asked about modifying oil pumps for more flow so they can run a longer bar. @dolmarkid sent me 2 oilers for a Stihl 044 and I thought I'd take a few pics along the way to help show others how I do it. This mod will allow an 1128 series to run a 32-36" bar and oil it sufficiently. I'm sure it'll work for other models too.
As received
After a trip through the parts washer
1st, I push the control bolt inward to remove any tension on the roll pin.
This is where the roll pin is located. I punch out the roll pin with an appropriately sized punch.
Or in this case, a perfectly sized drill bit. I set my vise jaws about 1/4" apart and center the pin in the gap. Then tap the pin out
As received
After a trip through the parts washer
1st, I push the control bolt inward to remove any tension on the roll pin.
This is where the roll pin is located. I punch out the roll pin with an appropriately sized punch.
Or in this case, a perfectly sized drill bit. I set my vise jaws about 1/4" apart and center the pin in the gap. Then tap the pin out