Quote:
Originally Posted by mikefocke
I'm surprised that the steel bolts go into aluminum. I recall from my Navy days that our ship had a steel hull but some of the superstructure (bridge area) was aluminum so the ship wasn't top heavy. And we had to be cautious about how we connected the two because of accelerated corrosion caused by an interaction between the two different metals. I don't recall the details of how we did that as it is approaching 50 years ago but we either used special fasteners or kept the two metals apart by some insulating method.
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That's 1 of the reasons all the Porsche engine bolts are plated, with cadmium I think.
I guess the exhaust system bolts are 1 of the few exceptions.