Chainsaw Repair

Husqvarna - Stihl - Poulan - Jonsered - Dolmar chainsaws and more => Husqvarna => Topic started by: KilliansRedLeo on January 23, 2014, 05:40:15 pm

Title: New version of Husqvarna 261 to 262XP conversion Tuesday 02/04/2014
Post by: KilliansRedLeo on January 23, 2014, 05:40:15 pm
For those members interested; the complete version of the tutorial will be up for download in the tutorials section of the forum. The modification and reassembly of the saw is complete. It is ready to start!

Even though the modification of the saw is complete, the documentation process goes on. I still need members to review the document for completeness and error detection so come on guys give me a hand here!

Cheers
KilliansRedLeo
Title: Re: New version of Husqvarna 261 to 262XP conversion
Post by: sharkey on January 24, 2014, 08:17:26 am
Hi Leo,
I just downloaded your project.  Im mighty impressed.  You spent some serious time on this piece and it shows.  Great job!
     
Removed link to protect the innocent/KilliansRedLeo
Title: Re: New version of Husqvarna 261 to 262XP conversion
Post by: Magnus on January 24, 2014, 08:24:28 am
Finally got to read hole article!

Very nicely done!

Title: Re: New version of Husqvarna 261 to 262XP conversion
Post by: Magnus on January 24, 2014, 08:33:41 am
A document this fine deserve a signature in end of it!
Title: Re: New version of Husqvarna 261 to 262XP conversion
Post by: KilliansRedLeo on January 24, 2014, 08:39:31 am
Thank you all for your kind comments. Getting close to wrapping the tutorial up, perhaps in the next few days.

At this point I am putting the saw back together and documenting the process then the only thing left to do is try the 365SPecial piston in it.

What I really need from all of you is your opinions on omissions, clarifications and additions. My target audience for the tutorial is someone who wants to modify their or a saw but does not know how to get started.

When this one is completed there will be another demonstrating how and why to use the factory methods and tools to do a bottom end job on a Husqvarna 365/372 saw!
Title: Re: New version of Husqvarna 261 to 262XP conversion
Post by: KilliansRedLeo on January 24, 2014, 08:41:34 am
A document this fine deserve a signature in end of it!

Good idea, I will see what I can do.
Title: Re: New version of Husqvarna 261 to 262XP conversion
Post by: sharkey on January 24, 2014, 09:17:04 am
I read through page 51 and into the part numbers, is this where it ends?  You need to add some kind of synopsis.   
Title: Re: New version of Husqvarna 261 to 262XP conversion
Post by: KilliansRedLeo on January 24, 2014, 09:25:31 am
No it does not end on page 51, it is not yet finished Sharkey, I am still documenting the reassembly of the saw! It will probably reach 70+ pages when completed. Do you think that you would be able to convert a 261 to a 262XP with only this document as a guide?
Title: Re: New version of Husqvarna 261 to 262XP conversion
Post by: Magnus on January 24, 2014, 09:43:43 am
Will be great to read the rest! This is very well done.

If focus is on making it a 262, perhaps focus should be on 262 piston? The 365 stuuf is interesting, but another cookie.
Title: Re: New version of Husqvarna 261 to 262XP conversion
Post by: KilliansRedLeo on January 24, 2014, 09:57:17 am
That is the current thinking on my end also, the document will stay focused on the 262XP, later I will add an addendum covering the trial of the 365 piston and if it is really a viable option or not.
Title: Re: New version of Husqvarna 261 to 262XP conversion
Post by: Magnus on January 24, 2014, 10:21:30 am
Is pistons different in ports and skirts too as well as hight?

This is fun stuff.

262 pistons there are many to get so for that reason it is not. But as a fun project I guess it is very interesting.
Title: Re: New version of Husqvarna 261 to 262XP conversion
Post by: KilliansRedLeo on January 24, 2014, 10:38:58 am
The 365 piston is 1mm taller overall, 1,5mm compression height from pin center to piston crown. 365 is also non window and has rounded corners on the skirt more than 262 piston.

Just an experiment to see what happens. I have done this sort of thing many times with some surprising results like, a Stihl 028S dome 46mm piston in a Husqvarna 55, runs and cuts like a much bigger saw, very high compression and 14500 no load 13200 in the wood with 18 inch bar .325narrow kerf chain.
Title: Re: New version of Husqvarna 261 to 262XP conversion
Post by: KilliansRedLeo on January 25, 2014, 01:33:31 pm
There will be a new version of the tutorial posted today (1/25/2014) more work has been documented on the reassembly of the saw using the stock 262XP piston. We should be posting another more complete version early next week! I would still like to impose on your time to review the tutorial and offer your input.
Title: Re: New version of Husqvarna 261 to 262XP conversion today 1/25/2014
Post by: Magnus on January 25, 2014, 03:10:31 pm
Were is this posted?
Title: Re: New version of Husqvarna 261 to 262XP conversion today 1/25/2014
Post by: KilliansRedLeo on January 25, 2014, 05:26:31 pm
Magnus, go to the tutorials thread look in the first post

Tim
Title: Re: New version of Husqvarna 261 to 262XP conversion today 1/26/2014
Post by: KilliansRedLeo on February 01, 2014, 05:21:15 am
Good morning! Saw in final stages of assembly. Passed leak-down test last evening took over 1m32s to get from 80 kPa to 62 kPa and just sat there at 62 until I got tired of watching it. Will have new complete draft version of tutorial document posted for review in a couple of days.

WOOOOOHOOOOO!!!! :o Has been a lot of work, perhaps it will help some folks out.

Next, we will be adding an addendum to the base document covering the experiment using a 365 SPecial piston in place of the 262XP piston. We will be doing this on another 261 so that we can publish a comparison video of the two saws. If I can figure out how to make and post a video!
Title: Re: New version of Husqvarna 261 to 262XP conversion Tuesday 02/04/2014
Post by: KilliansRedLeo on February 02, 2014, 04:33:10 pm
OK new complete version goes up Tuesday 02/04/2014. I need folks to review it or it will have to remain is DRAFT status!