why me? 372 blown...again

[Wolverine]

Good enough for who it's for?

 

[malk315]

So mystery solved on the sloppiness of that clutch last weekend -- 576 clutch has bigger threads. Wow.
Good to know. Bummer it caused a leak.

Is this the saw I cut one 3 or 4 foot length in half lengthwise?

Glad you got things figured out to root cause!

 

[Mattyo]

Yes indeed this is the saw it ran okay but only okay it did not tune as I would have liked so hopefully this solves that problem but maybe not maybe there are other issues that I need to work out we will see

 

[tree monkey]

we talked about that straight fuel line

 

[Mattyo]

Ya...I used too much. My fault. Not the line.

 

[Mattyo]

I shortened the line in the air box and think kink went away. ...again....my bad. Not gonna blame the line for that.

Who knows whether this or the vac leak buggard the piston....

 

[Finnrpm]

FYI..........

570 oem clutch pn: 503744405
372 oem clutch pn: 503744401

It seems that those responsible for clutch design at husqvarna, do not really understand true meaning of CAD.........

RV

 

[Mattyo]

nice info, thanks

there's just no good reason to change the threads... none. and the clutches would be identical otherwise.

 

[tree monkey]

Ya...I used too much. My fault. Not the line.

 

[Mattyo]

Yup....thats how it feels. I spent an extraordinary amount of time building these things and they still get messed up.

Every time I think I did an ok job something bites me in the ass.....


....and later I realize it was me that did it


Ugh

 

[Derf]

Hey Matt, don't feel bad. Everyone learns from their mistakes, and I doubt you'll make them again in the future. You're a very knowledgeable saw mechanic, and you're always helpful when you offer to wrench on a saw at a GTG. Thanks for sharing what you learn with the community, too.

"The greatest teacher, failure is." -Yoda, Star Wars The Last Jedi

 

[Stump Shot]

Yup....thats how it feels. I spent an extraordinary amount of time building these things and they still get messed up.

Every time I think I did an ok job something bites me in the ass.....


....and later I realize it was me that did it


Ugh

Just a matter of details... Some aren't so minor.

 

[paragonbuilder]

I shortened the line in the air box and think kink went away. ...again....my bad. Not gonna blame the line for that.

Who knows whether this or the vac leak buggard the piston....

View attachment 106797

If it was the line, it seems it would have cheaper to just buy the curly line at this point.


Sent from my iPhone using Tapatalk

 

[Mattyo]

I don't think it was the line. I think it was the vac leak. But...I think the line was causing the stalling in the cuts. ...

 

[p61 western]

How bad does the piston look?

 

[Mattyo]

Well....let's seee.....

 

[Mattyo]

 

[Mattyo]

Ugly

 

[p61 western]

Ugly

Ouch that hurts. Time for a new piston for sure.

 

[tree monkey]

I don't think it was the line. I think it was the vac leak. But...I think the line was causing the stalling in the cuts. ...