Chainsaw Repair

Info shared with me that I am saving here.

Eric aka taplinhill
There are a least four variants of the chain brake assembly.
There is a distinct early and late version that look nothing alike, then there are at least two versions of each of those.
I think there are two versions of that black flag handle.
There are two different top handle, the Champ having the later style that puts your hand more to the front of the saw, thus not leaving a lot of room for your hand.
I believe you have a late Super (but not a Super II) brake handle and a Champ/SuperII top handle.
Same with the spring cover. I believe that is the early Super spring cover and you have the Champ/SuperII clutch cover.
I love these saws but it can drive you crazy at times, especially if you start trying to mix and match with the 630 or even worse, the Husqvarna 266/268/272.

Looks like alot more clearance there between the handle and chain brake.   At least it looks that way from the pics. 

Of course it will shift the balance of the saw some and make the nose feel a little more heavy.

More info by spike60 =  yes these pulleys can drive you nuts. A look into the dusty archives I have can fill in some of the blanks. Lot of the confusion is because the electronic info available to everyone in incomplete.

The short explanation is that there are 4 Husky pulleys and 2 Jonsered pulleys. .

The first pulley is the small post/small ID pulley that came out on the 162SE, white top 61 and the early Jonsereds. The part number is 501 520 701. This pulley was used longer on the Jonnys than the Huskys. Jonsered use this pulley until 1990, so pretty much all of the twin coil Jonnys will have this pulley.

Husky went to a larger ID pulley for the 266/brown top 61's; part number is 503 102 402. The next change for Husky was due to the change to the deeper air injection starter that used the larger decal, this is where the long shank "5 ring" pulley was introduced and is commonly called the 272 pulley, and was also used on later 268's. Part number is 503 102 405. This causes some confusion on the 268's as the early XP's with the small decal starter retained the 266 pulley. The missing link in here is the 3 ring pulley that was a short lived deal I think due to a flywheel change. Not sure on the dates, but may have some documentation somewhere. Part number is 503 102 403 and it is NLA.

Similar story for the newer Jonnys; 625, 630 and 670 Super II and the 670 Champ. Pretty much all the single coil saws, starting in early 1990. Part number is 503 432 101 and it is also NLA.

But as you can see, for the most part, the pulley doesn't have to match the saw, it has to match the starter housing. Complete starter assemblies can be swapped between saws. Possible that some pulleys can be modified to fit in different housings, but I've never tried anything there.

The 281/288 uses a different pulley, and it didn't change when they went to the large decal starter.

The problem here, as usual, is "according to Jacks". It's really not a good idea to rely on 3rd party websites like Jack's or Parts Tree. They are chock full of errors and are what I was referring to about incomplete information contributing to the confusion. Especially when we are going back this far to try and sort things out. So.....

My statement is correct regarding the 281 and 288. Original part number was 503 102 401 that supersedes to the current 503 484 801, not the 503 102 402.

I looked back into the 181, and you are correct in that the early 181's used the same small post (10mm) pulley as the 162 and white top 61. The change to the larger 14mm post starter housing was made to the 181 starting in week 10 of 1985, as noted in service bulletin X 85.1021-96. This starter update took place before the 181 became the 281.

503 45 16-01 upper 503451601
501 69 97-02 lower 501699702
503 21 06-32 lower fastener
503 21 06-22 outer fastener
503 61 74-01 full wrap  503617401
501 44 45-01 outer bar plate  501444501   
503 53 58 01 plastic chain catcher

No dice on those things. Only have them on the saw in my avatar. LOL