Author Topic: Husqvarna 562xp autotune  (Read 7011 times)

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Online jmester

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Re: 562 Xp auto tune
« Reply #20 on: July 31, 2014, 10:03:46 pm »
What is the link to your thread on as would like to read it.
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Offline Cut4fun .

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Re: 562 Xp auto tune
« Reply #21 on: July 31, 2014, 10:38:36 pm »
I have a thread about it on AS.

I seen it over there back in May. Blugill did too as he posted in the thread.

Little more you shared below on subject.

Yeah any other techs seeing this? Homeowners buying them i havnt seen but one issue and that was ring locator pin. Its the logging, fire, and brush crews having issues guys  who run em 8-10 hours a day. And yes the auto tune can compensate for an airleak but indicators will be there. Also have a few saws in getting the new el48 carb on them due to hot start issues. Resetting ignition module airgap to 9 thousandths and sparkplug to 16 thousandths. Anyone else dealing with these chime in please.
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Offline Cut4fun .

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Re: 562 Xp auto tune
« Reply #22 on: July 31, 2014, 10:48:57 pm »
Just a heads up ive had 7 come threw blown up due to airleak through a closed decomp valve. They are not sealing properly these are newer saws no carbon build up present.

Its the 2011to early 2013 models with issues. Although just got another decomp leeker this morning took out top end. The 60 saws we plugged decomp hole off have had no issues.

The valves on the now 9 saws are being shipped to husqvarna for "research"

An airleak is an Airleak. causing saw to run way past highest rpm and lean fuel mix. Ever had a case seal get an airleak? Its the same thing. Its less noticeable on auto tunes.

Guess i should have clarified case gasket under cylinder in front of exhaust port. No there wouldnt be a spray of oil out of a decomp. Do a leekdown test and unit will not hold vacuum or pressure. Soapy water sprayed all around cylinder (as best as possible and on intake and spark plug and decomp) Pump up pressure and creating goodsize bubbles rapidly. Gauge wont hold any pressure. Just sent the units in question back to Husqvarna for further testing



Whats the deal with the decomps failing and taking the tops out you talk about?
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Offline stihls066

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Re: 562 Xp auto tune
« Reply #23 on: July 31, 2014, 11:16:51 pm »
Thanks for pulling the info over from AS. The deco valves are airleaking causing lean mix ratio and taking out the topends. I haven't had any of the newer 2013 39's come in since i plugged the deco. Had a couple 2013 39's come in with the ring locator pin issue however after getting sent back to sweden it was discovered to be an "accidental" mix up and a batch of those came through with 2011 pistons. I bought adam32's 562 to mess with. The main issues ive seen come through are uneven case halves under exhaust side cylinder, intake boot being crimped where carb connects, deco valves leaking, piston locator pin,  and not a killer of the saw but annoying the muffler cooks the case gasket causing a small amount of bar oil to pool under muffler.
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Offline KilliansRedLeo

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Re: 562 Xp auto tune
« Reply #24 on: August 01, 2014, 08:38:08 am »
I know the new one I have is a 2013 but will have to check for week 39. I'll let you guys know in a bit.
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Offline KilliansRedLeo

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Re: 562 Xp auto tune
« Reply #25 on: August 01, 2014, 09:03:20 am »
The new, never gassed one I have is 2013 week 34. I got this one from Spike60, what you guys think I should be doing with it?
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Offline Bluegill

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Re: 562 Xp auto tune
« Reply #26 on: August 01, 2014, 09:47:12 am »
Quote
I seen it over there back in May. Blugill did too as he posted in the thread.
Well, I stand corrected. I really do not remember reading about any ring locator pin problems?

My early 2011 model has around 25 tanks through it (it doesn't get the use my 346s' get). Is this something I need to fix before it happens???

Offline Bluegill

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Re: 562 Xp auto tune
« Reply #27 on: August 01, 2014, 09:52:33 am »
It seems to me a leaky decomp valve would just lower comp, not pull air in to cause lean mix? What am I missing here?

Offline Cut4fun .

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Re: 562 Xp auto tune
« Reply #28 on: August 01, 2014, 09:53:34 am »
Quote
I seen it over there back in May. Blugill did too as he posted in the thread.
Well, I stand corrected. I really do not remember reading about any ring locator pin problems?

My early 2011 model has around 25 tanks through it (it doesn't get the use my 346s' get). Is this something I need to fix before it happens???

Bluegill post pulled from the thread in May.

I have 7 documented here. Its a problem elsewhere also. I work at a shop in northern california. Servicing most of the fire crews around this area. They are having lots of issues up until the newest serial numbers 2013 39 they fixed alot of the issues. When the fire crews get a new saw the decomp gets pulled and plugged now. I have a storage container full of toasted saws ring locator pin   ,case halves not lining up under cylinder blown up saws. The fire guys have it great. They blow one up and husqvarna sends them a new one
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Offline Cut4fun .

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Re: 562 Xp auto tune
« Reply #29 on: August 01, 2014, 10:06:44 am »
Just because it isnt in print doesn't mean it isnt being kept under wraps by the company. JMO. Just like pulling the 661 back off the market.
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