Author Topic: husqvarna 372xp new score! need service manual  (Read 1001 times)

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Offline UNCLEBEEF

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husqvarna 372xp new score! need service manual
« on: March 09, 2013, 04:12:50 pm »
Hello All, new to the forum, ive been reading posts and enjoying all the info here. i own two husky 455 ranchers, one stihl 028 and just picked up a husky 372xp today. i fired the saw to make sure it ran before purchasing but i would like to find a service manual to help me with inspecting and servicing before i run it hard in the woods. any help will be much appreciated. thank you. Dave.

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Offline Cut4fun .

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Re: husqvarna 372xp new score! need service manual
« Reply #1 on: March 09, 2013, 05:30:05 pm »
Old school one or the new x-torq one?  Most of the old 372 SM will work though.

If you can tell, is de-comp on right side or top of cylinder?
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Offline 660magnum

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Re: husqvarna 372xp new score! need service manual
« Reply #2 on: March 09, 2013, 06:20:31 pm »
Look in your Email.  I sent you the one for the none XT version prior to 2010
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Offline UNCLEBEEF

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Re: husqvarna 372xp new score! need service manual
« Reply #3 on: March 10, 2013, 01:12:04 am »
hello, thanks for the response! dcomp is on the right side, i found a compression gauge and checked it.... 120 after about 6 or 7 pulls. is this weak or ??? does anyone have a normal range or spec for a used saw? is it time for a rebuild of the top end? any help is appreciated. thank you.

Offline 660magnum

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Re: husqvarna 372xp new score! need service manual
« Reply #4 on: March 10, 2013, 01:44:47 am »
I sent you the manual for the 372 with the decompression on the right side.

120 is a little weak but it should run OK. Closer to 150 is norm. Some were 140 new.

It is time to pull the muffler and look at the piston to see if it is scored. If not, perhaps all y0ou need is some rings?
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Offline UNCLEBEEF

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Re: husqvarna 372xp new score! need service manual
« Reply #5 on: March 10, 2013, 11:16:56 am »
thanks for the manual Magnum, i pulled the muffler and looked at the piston, absolutely perfect, no scratches or scoring. i thought 120 was low and i was expecting to see some damage so...... run it or put some rings in it?

Offline Cut4fun .

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Re: husqvarna 372xp new score! need service manual
« Reply #6 on: March 10, 2013, 11:20:52 am »
I have pics of worn 372 rings that pulled 120psi and then a new set of caber rings to compare to.
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Offline Cut4fun .

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Re: husqvarna 372xp new score! need service manual
« Reply #7 on: March 10, 2013, 11:22:35 am »
Here you go.

Just to show the newer guys the difference. You can see the wear and feel the psi difference pulling over.

372 50mm rings pulled from a running saw just getting low on compression 120psi, still ran and started good. Checked cold

Then new Caber 50mm rings with about 30 seconds of run in , idling and blips. Checked warm 140psi




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Offline UNCLEBEEF

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Re: husqvarna 372xp new score! need service manual
« Reply #8 on: March 10, 2013, 12:14:33 pm »
thanks for the pics, so.. i'm leaning towards reringing. do i need to do any prep to the cylinder or piston besides normal cleaning? should i run a hone and cross hatch or do they do that with saws?

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Re: husqvarna 372xp new score! need service manual
« Reply #9 on: March 10, 2013, 12:20:30 pm »
IMO do not use hone or hone it. I just take a green scotch brite pad like plastic material or something, whatever they are.
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