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Fatboy2017

Husqvarna 365 special cyl and piston

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1 hour ago, Fatboy2017 said:

Thanks for the suggestions, there is quite a few ridges in the cylinder that I don't think will rub / hone out. The 272 suggestion is good one but I'm not really bothered as owner does / will not know the difference, if I find a 272 top end it would be an option as I will change intake book as well for a precaution as 18 years old! 

Not 272 , 372xp top end .

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It all depends if the ridges are protruding aluminium transfer or scores through the nikasil plating.

Most cylinders can be brought back to life if it is just aluminium transfer.

The special 365 should have closed transfers, same as the 372.

Edited by spudulike
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I know the early cylinder definitely had open transfer ports, and was fairly sure the later one did as well, oh well another moment.

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See pics of 365sp, ID plate may help me id age of saw exactly etc, see state of the other bits, have not got pics of cyl yet as not close to saw

Husky 365 sp plate.jpg

Husky 365sp plug.jpg

Husky 365sp clutch drum.jpg

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1 minute ago, Fatboy2017 said:

See pics of 365sp, ID plate may help me id age of saw exactly etc, see state of the other bits, have not got pics of cyl yet as not close to saw

Husky 365 sp plate.jpg

Husky 365sp plug.jpg

Husky 365sp clutch drum.jpg

I think that is a 2003 made saw . That spark plug is fantastic !

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It's a neighbours saw ( not here in UK but next to my house abroad, when I asked him what oil he used he said - dunno! green stuff!! whatever's the cheapest!!!  I suspect carbon has built up on piston crown and cyl then when I changed the plug, cleaned filter etc, it gave it a new lease of life for as long as it lasted till the extra grunt and revs dropped the carbon off which I suspect was cause of piston failure. He looks after my place when I'm not there so I owe him, but I think I'm going to have a job on my hands to get him to convert to syn oil after it lasting 18 yrs running on that cheap crap. In credit to the saw,  fan housing and cyl and clutch cover were all crammed full of wood oil and crap, surprised it was still running. He will have to wait now as I'm back in the UK now so I will try to find him a solution, which does not include him using my saws which I have over there - a Dolmar 115i and a Dolmar 6100!!

I've got some cutting and cleaning up myself to do when I go back in November ( covid restrictions allowing of course) A hectare of woodland a a few very unstable walnut tree in my garden,( very close to the house and electric wires and has a hole right deep inside, hopefully if they have been marked by then!!

Forrest Tebea.jpg

Forest Tebea.jpg

Walnut Tebea.jpg

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On 15/09/2021 at 20:12, adw said:

I know the early cylinder definitely had open transfer ports, and was fairly sure the later one did as well, oh well another moment.

The special had closed ports...like this: -


I've got a good Husqvarna 365 cylinder here that came off a running saw that had 160psi compression IIRC. Made by Mahle. Make offer. ...

 

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If that last pic of the saw is the clutch drum, measure the crank shaft to make sure the shaft isn't shot as that wear looks bad.

A few pics of the cylinder damage would be useful.

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