Rust Prevention on Strut Tower

[Fastlane]

Rust on the struttower is always a big problem. I am not affected by this, but to keep it that way, it is necessary to preserve the sheets on top of each other well. To do this, I drilled a 1.5mm hole at a point where the welded sheets are as far apart as possible. This can be seen from the fact that the welding points are pulled down. Then I injected anti-rust oil (fluid film A) with a 1,5mm needle and a syringe, 10ml per side, which I repeated 2-3 times with a few weeks apart. The oil is relatively thin and creeps into all the seams and cavities between the metal sheets. It can also penetrate existing rust, but this takes a long time. After 6 months I repeated this with rust protection grease (Mike Sanders), the grease has to be heated up well so that it is liquid enough to be processed with the syringe. This NEVER gets hard and creeps for years, this is supported by the fact that the engine compartment is always very warm. This approach is very common here and has been successfully tested. I have gradually treated all cavities in the car with it. The only downside is you have to wipe off any leaking grease at the seams and holes. The rust certainly no longer has a chance for that.

 

 

 

 

Here you can see the grease creeping out the seams

 

 

I hope this is helpful to someone

 

Kai

[GoHashiriya]

Thanks for this. I too want to slow down/stop the corrosion process at this location. It seems that regardless of the condition of the car, you will get rust on the strut tops unless you seam seal the car from new. I've really just been budgeting to get the plates swapped out, treated, then seam seal around the gaps.

Until now all I've done is liberally blasted WD40 in and around the area from the wheel well, what effect this'll have is debatable, hopefully postive. I don't have any bubbling or abnormalities showing from the top side but on close inspection of the underside there are definitely traces of corrosion. 

With this method, presumably you only drilled through the top sheet of the strut top?

Would it have been beneficial to drill more than one location?

Does the leaky grease have any negative effect on other surfaces, e.g. brake lines or painted surfaces other than looking messy?

 

 

 

[Fastlane]

Of course, I only drilled through the top sheet metal and I don't think there is any advantage in drilling several holes. The grease creeps over long distances over time. WD 40 is definitely better than nothing but look around for special anti-rust agents. Mike Sanders sends worldwide, ok that is certainly not cheap but cheaper than having to replace the metal sheets. Except that it doesn't look nice in the places where the grease escapes, there are no negative effects on plastic or technical parts. it shouldn't drip on the brake, but that should be clear.

Here is a comparison of diffrent anti rust agents.

Sorry only in German.

oldtimer_markt_rostschutz-test_teil_1.pdfoldtimer_markt_rostschutz-test_teil_2_1.pdfoldtimer_markt_rostschutz-test_teil_3.pdf