Chainsaw Repair
Husqvarna - Stihl - Poulan - Jonsered - Dolmar chainsaws and more => Husqvarna => Topic started by: Cut4fun . on October 20, 2015, 12:03:20 pm
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I cant remember anymore. Husqvarna 266 thin ring piston and Jonsered 630 thin ring pistons the same?
I want to say yes but need to be sure.
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Calling Sawtroll :) He would sure know if anybody would. Those are 2 models I've never been into.
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Is the 630 thin ring 48mm and the 266 thin ring 50mm?
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copy paste info
The early model 630's (based on the Husky 162) had 2 thin ring pistons, later models had single thick ring pistons.
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Info from spike60
There is really no difference between the SE and XP models. This just happened to be the time when Husky adapted the XP designation for their pro saws. Some 266's will have SE on the serial number plate, but XP on the top and starter covers.
XP originally stood for Xtra Power, and I suppose still does but you don't see it mentioned very often.
I'm pretty sure the only saw with the metal fuel tank was the 162SE which was the first saw on this chassis. That was the thin ring model, and it's jug and piston were shared with the Jonsered 630. The 630 continued in the Jonsered line right up until that entire saw family was replaced by the 371/2071 chassis around 1997. The Husky 262 was of course on a completely different chassis.
One thing that catches a few guys by surprise is that the early plastic tanks used the same mounts as the metal tank saws. They had a fine thread that screwed into metal inserts in the tank. (often the case with white top 61's) The later saws had the more common mounts with courser threads that screwed directly into the plastic.
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Well crap thin ring for 48mm pistons = 630 I was told in PM but just wanted to be sure. Thanks.
(http://cdn.shopify.com/s/files/1/0032/0472/products/621_9356333_1024x1024.jpg?v=1280874475)
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Mise well save them anyways.
Husqvarna 266 IPL http://www.husqvarna.com/ddoc/HUSO/HUSO1982_USen/HUSO1982_USen_O8200002_.PDF
Jonsered 630 IPL http://www.jonsered.com/ddoc/JONI/JONI1987_AAaa/JONI1987_AAaa_I8700004_.pdf
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Is the 630 thin ring 48mm and the 266 thin ring 50mm?
Regardless of the ring type, the 630 is 48mm and the 266 50mm.
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Only the early 630's had the thin rings. Not sure when the switch was made, but I think I have the service bulletin somewhere. Later single coil saws all had the single ring. (same item that was used on the 2165/365).
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IIRC, the 630 that I had was a thin ring saw. Had a roached top end. I peeked through the exhaust port, but cannot remember for sure what rings it had. David Young has it now. Maybe he'll see this and post up.
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Those 266's were great saws, to me they seemed to have more power than my 562xp but it's been a long time since I actually used a 266.
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all 630's I've ever seen were thin ring. must be I have older ones. I have not pull the muffler off yet Aaron still gathering parts.
there was a porting difference in the se vs xp. the se had smaller transfers and combustion chamber. I am not sure about this fact but at some point the went from a throttle lock to being inclusive on the choke.
the 162 I opened up I believe had a single thick ring. I will check
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I've got a nice heated handle 266. Runs so nice as is I've not even thought of doing anything to it.
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David those changes (larger transfers, larger combustion chamber, larger intake, idle speed screw on the carb, one piece ignition, taller top cover, additional air filter options, elimination of the removable FW side seal carrier, etc) happened between the 266XP and the 268XP.
The 272XP is basically the same saw as the 268XP, but with a 2mm larger bore (52mm vs 50mm). The non-XP 268 (released as a lower cost/performance option after the 272XP replaced the 268XP as top dog in this series) also has these improvements, but with the Gilardoni open port 66/268K cylinder.
All the 266SE/SG/XP saws have the same cylinder and carb/intake setups (smaller transfers, smaller intake, idle screw in the case, etc). All the Huskys in this series have the throttle lock integrated into the op pres lever.
The Jonsered versions have the choke activated throttle lock. The 162 has a metal tank. Same with some early 61's. The G models (all the way through the 272XPG) also have Mag tanks......with heated grip scales.
I have a very nice 266XP. IIRC, it is a 1987 or so vintage saw. Should have one thick ring, but I haven't yet checked. Also have a 162SE coming soon.
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I've got a nice heated handle 266. Runs so nice as is I've not even thought of doing anything to it.
That's how I feel about my 266XP. Runs a 20-24" B/C quite well in oak. Seems to have a bit more 'snap'/better acceleration than my 272XP (probably due to higher low RPM charge velocity through the smaller intake and transfers), but not quite as much top end. Close enough that I feel no need to mess with it. Just a sweet running little saw.
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162 pic
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this h162 has a single fat ring. The piston looks like a 262 piston
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I love the 266 as well ! It's just good at everything that I need it to do :)
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To think I sold a running 266 parts saw for $25 plus ship awhile back.
Man I could have dangled the carrot a little longer. ;) :D :P
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Ouch, I got one the other day for $80. It was described as needing a new choke lever. It needed a new choke lever, top cover , switch and it has a loose bar stud. It runs well though, I have four of them in varying states of repair now.