Are any of you corrosion techs really
Researching this issue? There isn’t a fix. Several people have had redos and the fixes failed. It has nothing to do with steel fasteners. It’s well know you can’t use steel fasteners in aluminum. When ford stamped the panels they accidentally introduced steel contamination into the aluminum. No one has been able to successfully repaint these pieces with long term success. Just because your 2016 doesn’t have issues yet doesn’t mean it won’t. My 2015 with 83,000 miles on it doesn’t have issues yet either but I have no doubt they will surface eventually. Not knocking your skills or experience but take someone’s messed up hood and liftgate, Fix it permanently, and you’ll have my respect.
That steel hood for sale online, is that completely legit? That would be an easy and cheap solution.
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not sure how body shop guys and gals are trained around the country. the shop here we use has two separate buildings for body work. One is completely isolated from the other, tools are even colored different. He did this to meet the insurance repair criteria, especially those who warrant repair for life of ownership .
stamping alum parts, could be a source of contamination, but its not likely. Contamination most likely occurs during post stamping handling, surface cleansing and treatment, along with handling prior to installation.
YES you can attach ferrous and non ferrous fasteners to alum and HAVE zero corrosion. we use high stress fasteners everyday and they don't induce corrosion, we follow strict guidelines and therefore the result is no failure of protective barriers and expected life of said parts.
asking auto builders to adhere to this type of detail.....well its not going to happen. but they do have rigorous engineering specifications to follow. and yes growing pains almost always ensue when new materials are used. that does not excuse improper assembly.
jags, range rovers, volvos, bmws, etc all suffer the same issues.
to repair the doors, hood or panels.
if the skin on these parts is damaged beyond strength requirements, then you cut in a patch or replace the panel.
new panels should be double checked for etch and proper primer and no damage. then install according to the engineering requirement, and yes engineers are not perfect. and yes cost versus outcome plays a major part to guidelines.
manufacturers spend much money ensuring items don't fail within prescribed timelines. but humans operate the machines and humans do make mistakes. you never buy a car that was built on monday or friday, why??? humans.
DRAINAGE and water intrusion is ALSO very key.
any where water or contaminates get into, has to drain or be easily rinsed out.
our back lift door has several areas, that need attention in regards to water intrusion.
I have sealed a few seams as added protection, but i am wired that way. and my vehicle gets washed from the under frame and nooks ad crannies to remove as much road grit as possible.
and yes i spent years flying all over the world training aircraft technicians the methods to this madness.
