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Stihl MS 660 oiler being stingy


morten
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Morten, has this only just started happening or has it always been reluctant with the oil, it wasnt made clear?

 

If its only just happened recently, you've got some good cleaning advice to follow above.

 

If its always been like it and if, as you mention you intend milling with it, you need the bigger pump as Mr McTree says.

 

There are different output pumps. The thought Stihl had was that the UK saws would be cutting predominantly hardwoods, therefore shorter bars would be more common and needing less oil. Some of the west coast US and the AUS machines had the bigger output pump as standard, as the thinking was they would run bigger bars more often.

 

The complete pump (AUS) is 1122 640 3201. If you dont want to buy the complete pump, you could strip your standard pump and fit piston 1122 647 0602 and control bolt 1128 647 4802

 

I'm only a dumb cutter and not as upto speed as the other guys, but hope my wee input may help a little.

 

The oiler worked fine to start with. I have noticed during the last 6 months, or so, when refilling, that the oil consumption was down.

 

It may have something to do with the fact that I am using bio chain oils (rapeseed oil based) and have not been using the saw much for the past year (been busy doing other things). Bio oils have a tendency to harden (oxydise) over time, creating a rubbery film.

 

Thanks for the info on part numbers for oilers. Very helpful!

 

PS: Aren't we all just "dumb cutters"? :thumbup1:

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The oiler worked fine to start with. I have noticed during the last 6 months, or so, when refilling, that the oil consumption was down.

 

It may have something to do with the fact that I am using bio chain oils (rapeseed oil based) and have not been using the saw much for the past year (been busy doing other things). Bio oils have a tendency to harden (oxydise) over time, creating a rubbery film.

 

Thanks for the info on part numbers for oilers. Very helpful!

 

PS: Aren't we all just "dumb cutters"? :thumbup1:

 

No worries at all, it sounds like its a clean up first and then see. If it still doesnt cure the problem, and it looks like its worn or slipping on the gear, it maybe still worth considering the higher output pump, especially if you end up milling with the saw. I dont think they are any more money than a standard one, and you can always turn it down for smaller bar work:thumbup1:

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