MS660 w/36" bar

PoolmanLL

PoolmanLL

Location
Perrysburg,Oh
MS660 w/36\" bar

what am i doing wrong... or bad chains. i have 3 or 4 pretty new chains that are stretched out enough that you can run the tensioner all the way and the chain is still slack. can/should i take a link out to shortin them or toss um... and why is it happening. i know when they get hot they stretch. what are your thoughts????
 
Re: MS660 w/36\" bar

My first though is abused chains and bar from running dull.

If it's not that then just take a link or two out.
 
Re: MS660 w/36\" bar

Most bars have the DL number stamped on them. If that number matches the number of drive links on your chain? And it won't tension correctly because of too much play in the chains?

Chuck the chains IMO.

jomoco
 
Re: MS660 w/36\" bar

[ QUOTE ]
Most bars have the DL number stamped on them. If that number matches the number of drive links on your chain? And it won't tension correctly because of too much play in the chains?

Chuck the chains IMO.

jomoco

[/ QUOTE ]

Or,get a 3/8 X 8 rim sprocket.
If you have 3/8 X 7 rim sprocket on now, take 1 link out. Order new chains 1 link shorter.
 
Re: MS660 w/36\" bar

Doesn't that sacrifice your low end torque for high end chain speed Norm?

Personally I covet low end torque over chain speed in my big saws.

Guess I'm too old for the races these days mate.

jomoco
grin.gif
 
Re: MS660 w/36\" bar

[ QUOTE ]

1. Doesn't that sacrifice your low end torque for high end chain speed Norm?

Personally I covet low end torque over chain speed in my big saws.

Guess I'm too old for the races these days mate.

jomoco
grin.gif


[/ QUOTE ]

1. It actually slows chain speed down and gives more torque.
Figure it like a 10 speed bike with the 2 pedal sprockets and 5 axle sprockets.
 
Re: MS660 w/36\" bar

That only makes sense if you're reducing the OD of the drive sprocket Norm. Which would give you even more chain slack.

Unless I'm trippin on an LSD flash back or somethin?

jomoco
 
Re: MS660 w/36\" bar

[ QUOTE ]
[ QUOTE ]

1. Doesn't that sacrifice your low end torque for high end chain speed Norm?

Personally I covet low end torque over chain speed in my big saws.

Guess I'm too old for the races these days mate.

jomoco
grin.gif


[/ QUOTE ]

1. It actually slows chain speed down and gives more torque.
Figure it like a 10 speed bike with the 2 pedal sprockets and 5 axle sprockets.

[/ QUOTE ]

Not the case it speeds the chain up reducing torque. Not the same idea as a bike. Its more like putting bigger tires on your truck. Think of it this way if a 7tooth is one inch then every full rotation will give you+/- 3.14 " of travel. If the 8 tooth is 1.25" then one full revolution will be just shy of 4 inches. If the saw turns 10,000 rpm on the shaft well you can do the math....
 
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