Ms 460 oiler ho mod

[deye223]

Ms 460 oiler ho mod .
OK did the search and for some reason it did not come up as I am sure there is a thread on here .
Now in my useless country I can and have bought a control bolt pn 1128 647 4803 but the pump piston pn 1138 647 0602 is NA now .
Now if I only change the control bolt bolt will I get much more oil or do I need a ho pump piston as well .

Cheers D

 

[SimonHS]

I don't think you need a new pump piston.

Have a read of this:

MS460 High Output Oiler Upgrade

There are a few threads about upgrading the MS460 oil pump with a H/O oiler. Figured I would post some new pics since some of the older pics are gone now. Used an impact gun with a 19mm socket to remove clutch. I didn’t take any pics before cleaning but here is one with everything cleaned up...

www.arboristsite.com

 

[drf256]

Pretty sure you need both.

It’s the lower end of the ramp that makes it oil more, and that rides on the control bolt. The control bolt offset is what creates the limit of how much the piston stroke moves.

You can grind on both the control bolt and piston ramp if you are so inclined.

 

[Tim N]

Mine has been changed to the h o oiler but now it won't adjust for less or more oil. Any suggestions?

 

[deye223]

Does the control bolt turn

 

[huskihl]

Might help some to understand what’s going on inside

Stihl 044 Oiler Mod

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...

opeforum.com

 

[Tim N]

Does the control bolt turn

Very little

 

[huskihl]

Very little

1/4 turn is all they go

 

[Tim N]

Mine won't turn that much. It just barely starts to turn then stops