572xp build

[brad ruch]

I have a 572 that was ran over by tree service guys.so I thought this would be a good thread in case anyone wants to know how to break it down.pull cases together and so forth.alot might be surprised on tools to do it.I will up date more tomorrow as I go.

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[brad ruch]

Case splitter tool is used is part #502 52 49-01 I think it was about $42.00
It bolts to the side on the bar studs.flywheel side tool is not available yet for some reason.
So I took the flywheel side to work and pressed the crank out.
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[brad ruch]

New case's were $192.00 I wanted to buy a short block but yet again not available yet.had the dealer call Husqvarna and they didn't know when it would be so I had no choice but to make these new case's work.

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[brad ruch]

Another problem crank tool to pull the crank threw the cases is part #590 89 08-01 cost $110!!! I thought no way in hell was i paying that when all the other tools are 18.00 to 30.00 so I used the 365/372 crank tool.worked perfect on the clutch side! Flywheel side you have to flip the bushing over because it won't sit flat.worked great that way.

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[brad ruch]

Now I'm need to decide on the piston.not sure why but this possibly got crap injested on the intake side.exhaust side is perfect.new OEM piston is 133.00 I seen lil red barn has a piston for like 40.00.o have used there pistons a couple times with no problems.

https://www.ebay.com/itm/143290174075

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[srcarr52]

Now I'm need to decide on the piston.not sure why but this possibly got crap injested on the intake side.exhaust side is perfect.new OEM piston is 133.00 I seen lil red barn has a piston for like 40.00.o have used there pistons a couple times with no problems.

https://www.ebay.com/itm/143290174075

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Buff it a little and run that thing. It will be fine!

 

[brad ruch]

I'll give it a try.thanks

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[huskihl]

Now I'm need to decide on the piston.not sure why but this possibly got crap injested on the intake side.exhaust side is perfect.new OEM piston is 133.00 I seen lil red barn has a piston for like 40.00.o have used there pistons a couple times with no problems.

https://www.ebay.com/itm/143290174075

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Needs a MaxFlo...

 

[kneedeepinsaws]

Brad, how bad was the damage initially?

 

[brad ruch]

Case was cracked all the way down the flywheel side

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[kneedeepinsaws]

Curious to see what the carb looks like, if its the same as the 562 or bigger. I will wait and see until you get to that point in your build!

Its hard to find any info in terms of pictures of take downs of the 572 and 550 mk2. Thanks for posting this

 

[Dub11]

Needs a MaxFlo...

Eye sea wut U did there.

 

[huskyboy]

Curious to see what the carb looks like, if its the same as the 562 or bigger. I will wait and see until you get to that point in your build!

Its hard to find any info in terms of pictures of take downs of the 572 and 550 mk2. Thanks for posting this

Larger than 562 carb

 

[kneedeepinsaws]

Now I'm need to decide on the piston.not sure why but this possibly got crap injested on the intake side.exhaust side is perfect.new OEM piston is 133.00 I seen lil red barn has a piston for like 40.00.o have used there pistons a couple times with no problems.

https://www.ebay.com/itm/143290174075

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Interesting, was the inside of the boot or the carb dirty? Wondering how the dirt got in, cause i know the air filter setups on these are really good.

or could it have been straight gassed for a short bit?
Cold seizure?

 

[brad ruch]

Interesting, was the inside of the boot or the carb dirty? Wondering how the dirt got in, cause i know the air filter setups on these are really good.

or could it have been straight gassed for a short bit?
Cold seizure?

Nope was not dirty.not sure how they accomplished that.lol I have one of there 562's also.ill have to take pic of how much crap makes it threw that air filter and holder.its unreal that it even ran.

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[kneedeepinsaws]

Nope was not dirty.not sure how they accomplished that.lol I have one of there 562's also.ill have to take pic of how much crap makes it threw that air filter and holder.its unreal that it even ran.

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You can get green thin air conditioning o rings used in the automotive industry that will fit into the 562 filter. They fit in the recess for the collar on the air horn to make a good seal. Also RTVing the two halves of the filter will do well. Just in case you may not have known

 

[brad ruch]

You can get green thin air conditioning o rings used in the automotive industry that will fit into the 562 filter. They fit in the recess for the collar on the air horn to make a good seal. Also RTVing the two halves of the filter will do well. Just in case you may not have known

I have heard of that.if I knew what o ring to get.im gonna make a filter sock and let them try that also.

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[brad ruch]

got more done today.well all of it
oil pump

 

[brad ruch]

chain brake going together and these holes were not taped.i had did a new short block 562 about month ago.same thing had about 4 holes i had to tap.no idea why.

 

[brad ruch]

i forgot to take pic of the piston but i did clean it up and cleaned up the cylinder which was almost perfect.when ya slide this cylinder down make sure the plastic is set correct or it will not set down.tank is easy to put on.i think easier than a 372.