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Inverted Oil System


Well-Known Member
Jan 11, 2008
Reaction score
Have a question about the Christen inverted oil system:

I'm installing a Christen system on my IO-540 and I see that the weld-on bung is made out of 6061 Aluminum. In addition, the kit suggests ER4043 rod.

However, I have a sneaking suspicion that the pan is actually magnesium.

Who can I talk to that has experience doing this? I don't have any problem welding aluminum or magnesium, but I sure don't want to put myself in a situation where I have to join dissimilar metals.

Thanks in advance, guys.


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