1128 Series / HO Oiler Mod

Adirondackstihl

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Feb 6, 2013
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Hey guys, my first oiler conversion here.
I picked up the HO piston pump and constrol bolt.
I just feel the stock oilers on these are stingy.
Oh.....and sorry for the cell phone pics, although they aint that bad.

First question: How the hell do I get that oilite bushing outta there? I'd like to reuse it if possible. I know I could gorilla fist it, but not sure the outcome would be good for the bushing.


Second question: The new control bolt (bottom) needs the (2) rubber o-rings? I assume? How the hell do you remove the old ones without ripping or tearing?
How do you install new ones without the same outcome?
 

jacob j.

When I let my hair down, my friends call me Dick C
Jan 9, 2012
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I usually order those o-rings along with the control bolt. They're part number- 9646 945 0160. I think they list for $0.60. New, they're pretty easy to put on with a little oil.

The last time I had to pull one of those bushings, I cut a matching half-moon shape in the jaws of an old pair of vise grips. I clamped onto the bushing with those, and carefully held the body in a rag clamped in the vise and worked it off that way. I heated the whole mess on top of the wood stove for a few minutes prior. Not real hot, just warm enough that it was easier to work with.

Be careful pulling the pump piston- apart from the spring, there's fine washers on it that you don't want to lose.
 
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Adirondackstihl

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Feb 6, 2013
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I usually order those o-rings along with the control bolt. They're part number- 9646 945 0160. I think they list for $0.60. New, they're pretty easy to put on with a little oil.

The last time I had to pull one of those bushings, I cut a matching half-moon shape in the jaws of an old pair of vise grips. I clamped onto the bushing with those, and carefully held the body in a rag clamped in the vise and worked it off that way. I heated the whole mess on top of the wood stove for a few minutes prior. Not real hot, just warm enough that it was easier to work with.

Be careful pulling the pump piston- apart from the spring, there's fine washers on it that you don't want to lose.
Well now.......guess I need some o-rings.......:facepalm:


I'll try putting it in the toaster oven when the wife leaves :)
 
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TK

Hand Rubbed Pork
Jan 9, 2012
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Do you have pictures of where the oil enters and exits the pump? I have an idea. And I think I'm going to try it out on my 365 for the heck of it. Just not sure if it will apply to your Stihl oil pump.
 
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