High Quality Chainsaw Bars Husqvarna Toys

First saw build 272xp

roadster27

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Hello everyone. New member here and wanted to start sharing with you guys my progress on my first saw build. I finished my 272 and seams to be running real well. So well in fact that I went looking for another Husky to play with and ended up with a 288 builder. That build thread will start soon. I've learned a lot for the site and wanted to give a little back.

So here it goes, I started out at an auction and held my hand up a lot long than I should have! Word of andvise, don't bid on thing you have no knowledge about. lol I payed way to much for a saw that ended up having bad main bearings. So I Took the saw apart and one thing led to another... here's a pic of it when I bought it.IMG_1662.JPG
 

roadster27

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The first thing I did when I got it home was tear it down and inventory parts I needed to order. The cylinder looked good. Just ordered a new meteor piston, bearings, gasket set..... sorry but I didn't get to many pics of the tear down. I did how ever come to the realization that this was probably going to be the first of many builds so I ordered a few tools....
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roadster27

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Once I got all the parts washed up in the parts tub I started the reassembly. First up was the bearing. It was one of those age old questions bearing on crank or into case first... so I once again tuned to you post and I think it was Mastermind some where that I read how he does it so I just copied him.

Cases cleaned up real well....
IMG_3225.JPG

To put it together I first put in the old oil pump in the pto side to set the bearing depth then heated the case with my heat gun to I think around 230 deg. Or so. (I used my cheap-o laser point and shoot thermometer to check). Them just drop the bearing in. No press....
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Give it a few minutes for the bearing to pull heat out of the case and expanded then the crank will just "snap" into place on the bearing race by hand.
IMG_3227.JPG

While giving it a little bit to cool down I started heating the flywheel side just like the pto side. It takes longer than one would think to heat up a case half... Once the pto side was cool I put the gasket on dropped the bearing into the flywheel side gave that bearing a few min to soak up the heat then just pressed the thing together by hand and used the case bolt to tighten it all up. Worked GREAT! I did give it a few taps on both side with the old "industrial maraca" (dead blow) to release any stress and center the crank....
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Next came the tank.
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roadster27

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Oh I almost forgot. New seals don't like "old surfaces" to ride on. So I cleaned up the crank for the new seals. Just need a string scotch bright and some WD-40.
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Put back and forth. It goes from this.
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To this
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roadster27

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Next step was to button up the whole bottom end. Pull off the old oil pump used for bearing instal and put on the new one. I used 2-stroke oil to lub the oiler o-ring and new crank seals. Then install flywheel and coil....
IMG_3231.JPG
 

Dub11

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roadster27

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This is the first time I have ever been inside a chain saw and put one back together. I do currently have a really nice 2100 taken 1/2 way down that needs a piston. I kinda have a real love for the 2100 after I heard my dads for the first time, he got it when I was 8. It's scared the s*** out of me and made my pants thight at the same time. Right then I feel in love with the big husky's! Lol. I now have 3 2100's, yet not a good piston in the lot. So I found that a 395 piston fits but needs work. This 272 and the next 288 that I will post up are the Guinea pigs to lead up to the 2100 build. I bought 2-2100's the 288 and a real nice 346xp oe runner all in a week and a half. the list of wants keeps growing..... I don't know anything about this "CAD" thing you guys keep talking about. I haven't run too many chainsaws much at all, at least not the ones you guys are used too.

These are the ones I run.
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Funny thing is I'm one of those "home owners" that only has 4 trees on my property and don't even have a wood stove. Lol.
 

roadster27

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I know most would just do a gasket delete on there first saw build but I'm not that kinda guy. I can leave anything alone. I do have a lathe that I probably have no business running but hey, it's my lathe, my saw, and my money.... So let the chips fly! I did by a new meteor P/C just in case I wand this thing in to a paper weight and need to round file the cylinder.
IMG_3177.JPG
The goal was .020"-.025" squish. I landed at .023"....
 
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