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Author Topic: Intro Post - Dad's old saw - Husqy 365/372 - Rebuild  (Read 2790 times)

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Online Somewhat Handy

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Intro Post - Dad's old saw - Husqy 365/372 - Rebuild
« on: January 01, 2019, 07:42:56 PM »
Hi guys. This will be my first thread after lurking several years. To summarize, my Dad passed away at the beginning of December. The two of us cut a lot of firewood with this saw when I was younger. I haven't used this saw in years and I don't know what condition it's in so I've decided to go through it stem to stern and learn more about it before I fire it up again. I hope to get a little homestead of my own going soon and this saw figures highly in those plans, maybe powering a granberg mill at some point. I'm following some teardown videos by Matthew Olson atm and I'll post photos as I go in case someone else finds this useful.

I should also point out that this saw looks like a 365 Sp with a few 372 Xp parts added later on. May just be cosmetic stuff. We'll see.

Edit:
If you're just starting your first saw build like I am, let me recommend that you buy one of these cantilever parts organizers. Let's me sort parts and fasteners in groups by location on the saw and the order I removed them. The bins mesh into the tier or lid above so I could turn the whole box upside down and not worry about things getting out of sorts. These boxes also stack, so you could keep adding boxes as you start projects, but the resulting tower of parts takes up little floor space. I really like these. One is plenty to sort the small parts for this saw. The rest goes in a rubbermaid tub. I haven't been real descriptive about the fastener sizes as I removed them, but I will try to mention them all when I put this saw back together.


 

 


Offline mike_belben

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Re: Intro Post - Dad's old saw - Husqy 365/372 - Rebuild
« Reply #1 on: January 01, 2019, 07:55:32 PM »
Sorry to hear about your dad.  


I suggest you pull the muffler and look inside plug hole to verify the piston and bore arent scuffed.  If not, id try to run it unless youre sure its got issues. 
Revelation 3:20

Offline sawguy21

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Re: Intro Post - Dad's old saw - Husqy 365/372 - Rebuild
« Reply #2 on: January 01, 2019, 08:44:32 PM »
Welcome aboard,, pull up a stump. What Mike said, do that before going any further. If all is good and you have spark rebuild the carb with a fresh diaphragm/gasket kit and replace the fuel line and impulse line. They harden and crack with age. That is a tough saw but might be underpowered for a mill. Try it then decide.
old age and treachery will always overcome youth and enthusiasm

Online Somewhat Handy

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Re: Intro Post - Dad's old saw - Husqy 365/372 - Rebuild
« Reply #3 on: January 01, 2019, 09:24:22 PM »
Ok. I'll have a look there first. I couldn't see much through the plug hole alone, but I'll see what it looks like with the muffler off. This saw is dirty. My dad wasn't the most mechanically inclined and I doubt his saws got much attention unless they stopped cutting. I also noticed that the chain brake doesn't seem to engage. I seem to recall this mechanism snapping into place when it was working. Now it just swings free.

 

 

 

 

 

 


Online Somewhat Handy

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Re: Intro Post - Dad's old saw - Husqy 365/372 - Rebuild
« Reply #4 on: January 01, 2019, 09:51:59 PM »
The clutch/bar cover looks pretty bad.

I think it's missing a plastic guide piece here:

  

I also think it's missing a piece of rubber flashing here:



Online Somewhat Handy

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Re: Intro Post - Dad's old saw - Husqy 365/372 - Rebuild
« Reply #5 on: January 01, 2019, 10:09:50 PM »
I'd also say that there are only two original handle screws left. 


 

Offline mike_belben

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Re: Intro Post - Dad's old saw - Husqy 365/372 - Rebuild
« Reply #6 on: January 01, 2019, 10:21:35 PM »
No big deal.  The filthy air cleaner matters more than the mismatched handle screws. Order a filter and the plastic chain guide block, i wouldnt worry about the mudflap, most of my saws lack them.   

Get the clutch off to oil the clutch bearing.   Plug the carb with clean paper towel, pull the muffler and plug that, then you can blast the thing with ether and air to degrease it.  Just watch your eyes. You want the jug fins to be clean for cooling.  
Revelation 3:20

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Re: Intro Post - Dad's old saw - Husqy 365/372 - Rebuild
« Reply #7 on: January 01, 2019, 11:14:05 PM »
Seeing how much dirt is caked in with the chain brake lever, I'm not surprised that I don't get the normal "click" action that I'm accustomed to. I hope cleaning the gunk out fixes it. Is their some type of of pawl mechanism inside there? We'll see.


 

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Re: Intro Post - Dad's old saw - Husqy 365/372 - Rebuild
« Reply #8 on: January 01, 2019, 11:47:17 PM »
I thought one of the muffler screws was stripped. Nope, just an imperial fastener what should have been an M5. Par for the course, I guess.


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Re: Intro Post - Dad's old saw - Husqy 365/372 - Rebuild
« Reply #9 on: January 01, 2019, 11:58:10 PM »
Can't see much of the cylinder interior from here, but things are looking pretty sooty. I really don't know what the piston skirt is supposed to look like through the exhaust port. Think I'll call it a night for now. Thanks all.

 

Offline mike_belben

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Re: Intro Post - Dad's old saw - Husqy 365/372 - Rebuild
« Reply #10 on: January 02, 2019, 08:12:36 AM »
Pull the chainbrake cover and youll see the big spring toward the rear and a small detenting spring toward to front that rides in a picket with i believe a plastic cap over it to follow the contours on the brake lever. 


Piston is juuuust starting to gall in the bore a bit, note the scuffs on the very top of the crown.  Good news is youve caught it early.
Revelation 3:20

Offline Al_Smith

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Re: Intro Post - Dad's old saw - Husqy 365/372 - Rebuild
« Reply #11 on: January 02, 2019, 08:58:48 AM »
Looks to me to scuffed by carbon build up perhaps from a restrictive muffler .If it were mine which it's not I'd pull the cylinder,clean up the piston and decarbon the exhaust port .Might not be a bad idea to look at the muffler etc . I've seen them a lot worse than that still run just fine after a little clean up .

Like grandma used to say,sicker cats than that have lived . :)

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Re: Intro Post - Dad's old saw - Husqy 365/372 - Rebuild
« Reply #12 on: January 02, 2019, 10:04:02 PM »
Washed her down and popped off the chain brake cover. I can see more dirt than parts under there. A little metal chunk tumbled out as I was lifting the chain brake cover (sitting on clutch in last picture). Maybe the pawl I was expecting to see?


 

 

 


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Re: Intro Post - Dad's old saw - Husqy 365/372 - Rebuild
« Reply #13 on: January 02, 2019, 10:52:57 PM »
I don't see this little guy in any spare parts diagrams. Hmm....


 

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Re: Intro Post - Dad's old saw - Husqy 365/372 - Rebuild
« Reply #14 on: January 02, 2019, 11:07:17 PM »
Cleaned up the brake lock and lever. I think the dirt caked in behind the brake lock may have prevented it's full range of motion. I'll come back to this side later when I'm ready to look at the clutch.

 


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Re: Intro Post - Dad's old saw - Husqy 365/372 - Rebuild
« Reply #15 on: January 02, 2019, 11:13:48 PM »
Now the starter cover.

 

 Missing a cover screw. No cracks and the starter pulley looks in good shape. Plenty of spring left. Just needs cleaned.

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Re: Intro Post - Dad's old saw - Husqy 365/372 - Rebuild
« Reply #16 on: January 02, 2019, 11:29:39 PM »
Ignition and flywheel seems to be all there. 

 

No cracks in shroud.



 

Ignition coil cleaned up ok, but the cable insulation is pretty thin in a couple spots. Will replace cable.

 

 

 

Offline mike_belben

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Re: Intro Post - Dad's old saw - Husqy 365/372 - Rebuild
« Reply #17 on: January 02, 2019, 11:32:04 PM »
Chainbrake detent block looks right to me, im not sure what that little tab is.  Hmm.
Revelation 3:20

Online Somewhat Handy

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Re: Intro Post - Dad's old saw - Husqy 365/372 - Rebuild
« Reply #18 on: January 03, 2019, 12:20:30 AM »
Now the gas tank and trigger group. This appears to be the remains of a chain catcher. Will replace if available.

 

Uh-oh. Looking for third screw attaching handle and I realize there is a big chunk missing from the crank case housing. This may be a parts saw now. What do you guys think? Would it be safe to run this way? Might need to look for another 365/372 to complete this little project.



 

 

Offline mike_belben

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Re: Intro Post - Dad's old saw - Husqy 365/372 - Rebuild
« Reply #19 on: January 03, 2019, 09:29:16 AM »
I think that tab came out of your clutch. 


If the crankcase isnt leaking id keep it. My 372 is on a chinese crankcase.  The only issue was the impulse line being different.  I dont remember how i solved it but it only took a few minutes.
Revelation 3:20


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