JB weld will hold, I'd shop around, you can find a good used valve cover for cheap. I just sold mine to unload it for $90. It was a steal for the person who bought it.

 

anyone else want to share experiences with a glued / JB welded valve cover ?

 

Any answer on this?

 

I think the purpose is to cover the crack with lots of epoxy so that the valve cover can hold pressure again.

Not really an exact science.

 

It is no problem to weld magnesium if the person doing it has done some tig Welding.. Dont know why People are so scared of it.

Example:

 

there is a jdm 7 valve cover for sale right now for only 300 bucks! cheap good deal

 

well most people are scared of magnesium because its flammable. suggestions on welding it make sure you have a Class D Fire Extinguisher handy. also make sure if you do any grinding that the part doesn't get to got and clean up the shaving/chips left over their what is really flammable


Magnesium is a highly flammable metal, but, while it is easy to ignite when powdered or shaved into thin strips, it is difficult to ignite in mass or bulk. Once ignited, it is difficult to extinguish, being able to burn in nitrogen (forming magnesium nitride), carbon dioxide (forming magnesium oxide, and carbon) and water (forming magnesium oxide and hydrogen). This property was used in incendiary weapons used in the firebombing of cities in World War II, the only practical civil defense being to smother a burning flare under dry sand to exclude the atmosphere. On burning in air, magnesium produces a brilliant-white light that includes strong ultraviolet.

 

All this is correct. But still.. With the right procedure and safety measures it`s all go With TIG Welding. I have read alot about people are afraid of magnesium burst into flames when you weld it, but as long as you TIG weld it and use correct filler, you should be fine. Some even claimes that magnesium cannot be welded because of the danger. I Call that proper BS.