Husqvarna 181SE

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Well now try not to get your Bloomfield Bloomers in a twist. I know what I am talking about. Look at the date I joined this site and I have been working on saws a lot longer than that. I know that doesn't prove anything but it is still information and evidence. I don't know if it is proof for you but I have thin ring 181s.
Everyone that gets a saw that originally came with the thin ring wants theirs to be one. Truth is they were early design and the rings wear fast. They are low friction rings and don't really seal well at low or cranking speed. Because of that Husky put a small combustion chamber on them. When rebuilt the newer (thicker double or thick single) seal better and make more compression at low speed. That is why the saw has 180# of compression. That is also why they make good race saws, with any of the pistons. Mike
 
ok, easy way to prove it is to measure thickness of ring.

Rupedoggy, what is the measurement of a thin ring??

i only guessed they were thin because the pics were blown up so big, and they look like my 2100 thin rings....

Serg
 
rupedoggy said:
Well now try not to get your Bloomfield Bloomers in a twist. I know what I am talking about. Look at the date I joined this site and I have been working on saws a lot longer than that. I know that doesn't prove anything but it is still information and evidence. I don't know if it is proof for you but I have thin ring 181s.
Everyone that gets a saw that originally came with the thin ring wants theirs to be one. Truth is they were early design and the rings wear fast. They are low friction rings and don't really seal well at low or cranking speed. Because of that Husky put a small combustion chamber on them. When rebuilt the newer (thicker double or thick single) seal better and make more compression at low speed. That is why the saw has 180# of compression. That is also why they make good race saws, with any of the pistons. Mike
Click to expand...

That explains a few things......:clap: :clap:


Disregard my earlier post (#7) - I was a bit off.......
 
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uninformed said:
ok, easy way to prove it is to measure thickness of ring.

Rupedoggy, what is the measurement of a thin ring??

i only guessed they were thin because the pics were blown up so big, and they look like my 2100 thin rings....

Serg
Click to expand...

Thats why I thought the same, they look to be the thickness of my 2100 thin rings. When I put a ring in a 288 a few months ago it was much thicker than those. I still have the other ring since it came in a set of two and only used one. Also, those are not cast iron rings. I'm just trying to learn some more so school me.
 
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If 1.5mm is a standard ring width for most huskys, and that is not a tr piston, then is there some in between size? Can you post a pic of a 181 tr piston Rupe?
 
Here is a picture I found of 181 Thin Rings.... hard to tell , but these look similar in size to whats on my saw...
IM000673.jpg
 
Wicked500R said:
Not that I'm looking again... I can't imagine rings being any thinner .... I'd really need to see pics Rupy...
Click to expand...

NO, you really need to measure your 181 rings!

the whole looking at picks thing is why we are debating whether or not they are thin.

looking at the first pic you posted with the muffler off, if those rings are 1.5mm that would make those muffler bolts rather large.

i believe the thins rings will measure up around 0.75 or there abouts.

measure the rings in the saw, Rupe, let us know how thin they should be.

serg
 
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My god..........

Those are indeed the Husky "thin rings"

But thin rings do have less low speed sealing and thin rings will always test lower in PSI doing a standard compression test in the same cylinder.

You will need to show me any production saw piston with one thin ring Troll...

The 181 had three types that I ever saw....2 thin ring, two thicker ring and single thick ring.

I can't see a single thin ring piston lasting very long in regular logging use.....particularly around here.
 
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PES+ said:
Those are indeed the Husky "thin rings"

But thin rings do have less low speed sealing and thin rings will always test lower in PSI doing a standard compression test in the same cylinder.

You will need to show me any production saw piston with one thin ring Troll...

The 181 had three types that I ever saw....2 thin ring, two thicker ring and single thick ring.

I can't see a single thin ring piston lasting very long in regular logging use.....particularly around here.
Click to expand...

:clap: :clap: :bowdown: ...lol
 
PES+ said:
Those are indeed the Husky "thin rings"

But thin rings do have less low speed sealing and thin rings will always test lower in PSI doing a standard compression test in the same cylinder.

You will need to show me any production saw piston with one thin ring Troll...

The 181 had three types that I ever saw....2 thin ring, two thicker ring and single thick ring.

I can't see a single thin ring piston lasting very long in regular logging use.....particularly around here.
Click to expand...


I said that post was a mistake, memory was off - see #23........:censored:
 
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SawTroll said:
I said that post was a mistake, memory was off - see #23........:censored:
Click to expand...

My mistake......sorry Troll

Now that being said.....I do remember one saw that had a dykes style single ring and I swear it was a Husky but it is quite foggy as to what vintage and I am pretty convinced now that this particular saw was a ringer one off......was 15 years ago or so and the replacement piston was a single conventional ring.....the saw never ran the same....not even close.

It was a smaller displacement rev screamer but lost a LOT of torque after the piston swap.

Weird that was....the customer swore he bought it that way and Husky parts US swore they had never heard of such a thing.
 
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PES+ said:
My mistake......sorry Troll

Now that being said.....I do remember one saw that had a dykes style single ring and I swear it was a Husky but it is quite foggy as to what vintage and I am pretty convinced now that this particular saw was a ringer one off......was 15 years ago or so and the replacement piston was a single conventional ring.....the saw never ran the same....not even close.

It was a smaller displacement rev screamer but lost a LOT of torque after the piston swap.

Weird that was....the customer swore he bought it that way and Husky parts US swore they had never heard of such a thing.
Click to expand...


My local husky parts store swore there was never a thin ring 2100 piston either, so the one in mine is a figment of my imagination.
 
Sorry guys I have been away for four days but I see the debate still rages. That is what makes sites like this interesting and fun. I did go and measure for you. The regular size is .062" the medium size is .048" (I think that is what you have). The thin rings are .024". That is about like two business cards stacked atop one another.These are measured by micrometer that is old, as are the eyes reading it! Mike
 
Dunno.........sure looks the same to me

Minus the chain oil burn damage of course......


<a href="http://s149.photobucket.com/albums/s48/RnsWScissors/?action=view&current=DSCF0001-2.jpg" target="_blank"><img src="http://i149.photobucket.com/albums/s48/RnsWScissors/DSCF0001-2.jpg" border="0" alt="Photobucket"></a>
<a href="http://s149.photobucket.com/albums/s48/RnsWScissors/?action=view&current=DSCF0003-5.jpg" target="_blank"><img src="http://i149.photobucket.com/albums/s48/RnsWScissors/DSCF0003-5.jpg" border="0" alt="Photobucket"></a>

I'll be hanged if I can find a 2 thick(er) ring piston anywhere around I was sure I had a couple of junkers left.

All the good thin ring and 2 thick(er) ring pistons are gone for the time being.


Aluminum keeps disappearing around here
 
Last edited:
PES+ said:
Minus the chain oil burn damage of course......


<a href="http://s149.photobucket.com/albums/s48/RnsWScissors/?action=view&current=DSCF0001-2.jpg" target="_blank"><img src="http://i149.photobucket.com/albums/s48/RnsWScissors/DSCF0001-2.jpg" border="0" alt="Photobucket"></a>
<a href="http://s149.photobucket.com/albums/s48/RnsWScissors/?action=view&current=DSCF0003-5.jpg" target="_blank"><img src="http://i149.photobucket.com/albums/s48/RnsWScissors/DSCF0003-5.jpg" border="0" alt="Photobucket"></a>
Click to expand...


Those two pictures are of the same rings??
 

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