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Changing chain pitch but not guage.


coppice cutter
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Not so much a question as seeking confirmation.

 

Am I right to assume that a guide bar can run different different chain pitches as long as the gauge is the same?

 

So for example, if you had a saw running .325/1.5mm chain, you could change the drive sprocket and simply fit it with a 3/8/1.5mm chain on the same bar. Or even fit a different length 3/8/1.5mm chain and bar off something else, providing the bar mounts are similar naturally?

 

And then following on from that, do all drive sprockets accommodate all different gauges of the same pitch? So can you fit both 3/8/1.3mm bar and chain and 3/8/1.5mm bar on chain on the same saw without having to change the drive sprocket?

 

To me all the above seems obvious, but when it comes to such things I never make assumptions.

 

Thanks in advance.

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11 minutes ago, coppice cutter said:

Not so much a question as seeking confirmation.

 

Am I right to assume that a guide bar can run different different chain pitches as long as the gauge is the same?

 

So for example, if you had a saw running .325/1.5mm chain, you could change the drive sprocket and simply fit it with a 3/8/1.5mm chain on the same bar. Or even fit a different length 3/8/1.5mm chain and bar off something else, providing the bar mounts are similar naturally?

 

And then following on from that, do all drive sprockets accommodate all different gauges of the same pitch? So can you fit both 3/8/1.3mm bar and chain and 3/8/1.5mm bar on chain on the same saw without having to change the drive sprocket?

 

To me all the above seems obvious, but when it comes to such things I never make assumptions.

 

Thanks in advance.

No . because the nose sprocket on the bar would be wrong . Eg you could not run .325 on a bar that has a 3/8 nose sprocket . even if the gauge for both is 1.5 .

Edited by Stubby
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Just now, coppice cutter said:

There you go, hadn't considered that.

 

So what about the different gauges on the drive sprocket, can a 3/8 sprocket run different gauges of 3/8 chain or have I missed something there too?

 

Thanks, btw! 👍

The drive sprocket on the power head will cope yes ,  especially if its a floating rim type . . Would need to change then if its very worn though .

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