Cracked brake cover

[cdntbone303]

Got a large crack in my Husqvarna 288 clutch cover. Was thinking JB Weld or those brazing sticks for aluminum and pot metal to fix it. Anyone got experience fixing a cracked magnesium clutch cover?

 

[Vintage Engine Repairs]

Got a large crack in my Husqvarna 288 clutch cover. Was thinking JB Weld or those brazing sticks for aluminum and pot metal to fix it. Anyone got experience fixing a cracked magnesium clutch cover?

Have you got a picture?

 

[cdntbone303]

Have you got a picture?

 

[cdntbone303]

Pretty nice cover minus the crack

 

[Vintage Engine Repairs]

Damn you did a good job cracking that one

Drill a tiny hole at the end of the crack, clean, abrade the paint off inside, dremel a “V” shaped groove in the crack and then apply the epoxy before clamping it back true to allow it to cure.

 

[cdntbone303]

Damn you did a good job cracking that one

Drill a tiny hole at the end of the crack, clean, abrade the paint off inside, dremel a “V” shaped groove in the crack and then apply the epoxy before clamping it back true to allow it to cure.

Any particular JB Weld you would recommend? They have a lot of different products. Is this going to be a permanent and strong fix?

 

[a. palmer jr.]

Pretty hard to weld a magnesium cover, I've done a lot of welding but not on mag alloys..

 

[huskihl]

JB weld won’t last. But tig welding it will. I believe the aluminum rods will also work well on the inside with a similar process as mentioned above.

 

[cdntbone303]

JB weld won’t last. But tig welding it will. I believe the aluminum rods will also work well on the inside with a similar process as mentioned above.

I got some of those alumiloy rods coming to try out. You have any experience using them? Basically a brazing and not an actual weld

 

[huskihl]

I got some of those alumiloy rods coming to try out. You have any experience using them? Basically a brazing and not an actual weld

Only a little bit filling holes.
Yep correct. I bet it’ll work

 

[Huskybill]

I’ve welded magnesium dirtbike cases and clutch covers, in a box flooded with argon with the TIG Hobart 500 amp. At work just for experience. I took on all kinds of work. I got some TIG rod samples from my vendor.

How about that torch low temp alloy rod as seen on tv I have that and some stick aluminum rod. Not sure about open flame with magnesium. I stepped on a droplet that was on in the welding booth and had ten Richard Pryor running across the floor.