Chainsaw Repair

Chain - Grinders - Filing - Wood Milling - Tools - Welding - Machinist - Mowers - Tillers => Welding Shop => Topic started by: alsled on November 19, 2013, 08:02:05 pm

Title: 394 Husqvarna Jug weld repairs
Post by: alsled on November 19, 2013, 08:02:05 pm
Had to do some repairs to some jugs off a 394.  Not super pretty but will hold up fine.  Used a spool gun and 4043 wire. 
Title: Re: 394 Husqvarna Jug weld repiars
Post by: Cut4fun on November 19, 2013, 08:05:51 pm
Good to see you folks doing these kind of repairs.  Thanks for sharing.

How you keeping from warping or keeping bore from getting out of round. Other words keeping it cooled off.
Title: Re: 394 Husqvarna Jug weld repiars
Post by: alsled on November 19, 2013, 08:17:52 pm
Kevin,

I soaked some old socks in water and stuffed them in the bore, hoping this may help.   This is the first time doing a jug repair, I'm going to try the jug with the welded top fin first. I don't have inside mics, so will see what happens. This was a used saw that I picked up at a great price.  I'm putting a new Meteor piston in it also.  The original doesn't look so good,,,, lol
Title: Re: 394 Husqvarna Jug weld repiars
Post by: 3000 FPS on November 19, 2013, 09:30:17 pm
That fin has to be pretty thin.   Good job on the welding.
Title: Re: 394 Husqvarna Jug weld repairs
Post by: alsled on November 20, 2013, 05:23:16 am
Thanks,  I used a piece of 1/8 alum as a replacement fin, also did a few welds between the top fin and next one down to help stffin things up.
Title: Re: 394 Husqvarna Jug weld repairs
Post by: srcarr52 on November 20, 2013, 03:23:08 pm
I've tig welded many OEM cylinder to fix fins or exhaust flanges without anything to dissipate the heat and I've never had them warp.
Title: Re: 394 Husqvarna Jug weld repairs
Post by: alsled on November 20, 2013, 05:33:44 pm
I've done some tig welding also on other things, about 4 years ago my big old monster hobart welder was finally put to sleep.  I bought a new lincoln tig, and to put it plainly, it sucks.
Title: Re: 394 Husqvarna Jug weld repairs
Post by: 3000 FPS on November 20, 2013, 07:49:35 pm
I've done some tig welding also on other things, about 4 years ago my big old monster hobart welder was finally put to sleep.  I bought a new lincoln tig, and to put it plainly, it sucks.

I saw the Lincoln tig in the picture and was wondering how you liked it.   Now I know.   
I have a Miller big heavy thing but it sure works nice.
Title: Re: 394 Husqvarna Jug weld repairs
Post by: alsled on November 20, 2013, 07:57:45 pm
The arc wanders, it doesn't weld worth a crap on real thin stuff, you can hear the arc and just understand.  The old Hobart, dam, I turned that on the lights dimmed, the neighbors even knew I had it running.  I think that thing could weld a pop can.
Title: Re: 394 Husqvarna Jug weld repairs
Post by: srcarr52 on November 21, 2013, 10:02:55 am
The arc wanders, it doesn't weld worth a crap on real thin stuff, you can hear the arc and just understand.  The old Hobart, dam, I turned that on the lights dimmed, the neighbors even knew I had it running.  I think that thing could weld a pop can.

That is the way my big old lincoln is.  It weld large stuff fine but with light pedal the arc wanders terribly.  I think I need to clean and reset the arc gap for the high frequency start.