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Upsizing chainsaw bar and chain yddraig 07-25-2007
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Posted by on July 25, 2007, 1:35 pm
>
>
> > Are there any problems when replacing a chainsaw bar say from 16
> > inches to 20 inches? I have a PoulanPro 3800 series and would like to
> > add a larger bar (occasionally) to cut larger logs. Poulan says that
> > the saw was not designed for a 20 inch bar (of course they do), am I
> > doing anything inherently risky by upsizing?
>
> > Thanks
>
> Worst thing that could happen is you burn out the motor.
>
> Steve

Extremely unlikely, IME. You might be able to make the clutch slip.

J


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Posted by Steve Barker on July 25, 2007, 2:18 pm
no.

--
Steve Barker







> Are there any problems when replacing a chainsaw bar say from 16
> inches to 20 inches? I have a PoulanPro 3800 series and would like to
> add a larger bar (occasionally) to cut larger logs. Poulan says that
> the saw was not designed for a 20 inch bar (of course they do), am I
> doing anything inherently risky by upsizing?
>
>
> Thanks
>



Posted by Andrew Duane on July 25, 2007, 4:31 pm
Upsizing to too big a bar and chain will make the chain not work
optimally, bogging the motor down even further. 38cc wont have the
power to handle a 20 inch bar (which will also probably have a much
deeper, more aggressive chain). It will probably run, and make the
chain go, but I doubt you'd make very much progress actually cutting -
very slow going. Also, a larger bar/chain will probably mean a
*thicker* chain which won't fit around your clutch. I just went
through this with my Husqvarna. Replacing the clutch would have worked
within reason (there's only so much room in there for the clutch), but
at that point I was more than halfway to just buying a bigger saw that
was built for what I needed.

> Are there any problems when replacing a chainsaw bar say from 16
> inches to 20 inches? I have a PoulanPro 3800 series and would like to
> add a larger bar (occasionally) to cut larger logs. Poulan says that
> the saw was not designed for a 20 inch bar (of course they do), am I
> doing anything inherently risky by upsizing?
>
> Thanks



Posted by beecrofter on July 25, 2007, 5:57 pm
> Are there any problems when replacing a chainsaw bar say from 16
> inches to 20 inches? I have a PoulanPro 3800 series and would like to
> add a larger bar (occasionally) to cut larger logs. Poulan says that
> the saw was not designed for a 20 inch bar (of course they do), am I
> doing anything inherently risky by upsizing?
>
> Thanks

For the horsepower I'd say your saw was about maxxed out at 16"



Posted by Harry K on July 25, 2007, 9:58 pm
> Are there any problems when replacing a chainsaw bar say from 16
> inches to 20 inches? I have a PoulanPro 3800 series and would like to
> add a larger bar (occasionally) to cut larger logs. Poulan says that
> the saw was not designed for a 20 inch bar (of course they do), am I
> doing anything inherently risky by upsizing?
>
> Thanks

It won't do any damage but probably won't cut well. There is an out
though.

Use a full skip chain on the 20" bar and that should cut acceptably
well. Won't set any speed records but should cut.

I am using a full skip 25" bar/chain on my Stihl ms310 to cut the big
stuff. On regular it carries a 20" full house chain.

Harry K


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