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The time is finally here. Almost 20 years after getting my VS car the master cylinder finally gave up the ghost. I was experiencing moderate brake fluid loss on the reservoir. I had examined all four corners without finding obvious leaks on the brake lines, rear cylinders or the front calipers. No obvious leaks on the pan’s center section either. Last weekend I decided to grab the bull by the horns and took the left front wheel off to inspect the area. The area under the master cylinder certainly needs a good cleaning, scraping and repainting but apart from a light oily residue there is no widespread leak. I found out the master cylinder is leaking at the back in the dreaded “no man’s land” in the bulkhead between the two metal layers where the mounting spacers go. How in the world can you get rid of all that stuff and clean and protect that area and the chassis itself?

The master cylinder itself was another curiosity. The car was equipped back then from VS with a Bietrix Indian made unit. Found out this is a now defunct brand out of New Jersey that distributed these parts. Can’t really complain because it lasted all this time. Anyhow; the hunt for a replacement was a little adventure in itself. I ordered an FTE German unit from an outfit in Arizona only to get the order cancelled the next day due to the thing being out of stock (if it is why offer and advertise it? I see that even after refreshing the page it is not shown as out of stock but still gets offered for the next sucker to bite the bait). I finally decided to get a JP Dansk unit from Parts Geek. They are reputedly “European” (meaning of German, Italian or Danish origin) Price was good at about $56 and change delivered with tax. The same unit gets offered by other retailers at over $100.00. The unit got here in a couple of days and looks decent:72184542113__242270DF-D38D-4CDF-B00E-D08C27CC6AE9

Now on to doing the work on the weekend. What do you all suggest to clean up and protect that internal chassis area? I was thinking about spraying all that area with brake cleaner but not sure what to use to protect. Rust Oleum, Eastwood or any other coating?

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I find that if you use enough non-chlorinated Brake cleaner, you might get high on it so caution but,  I would use it and spray liberally and then use compressed air to dry it.  Then I would use some Rust Converter, the spray can and let it convert the rust to the enamel primer, it might take a day to dry, and you might have to coat it once or twice then I shoot the stuff with Film Liquid if you don't want to paint the area as it is a eucerin/wool wax derivative to protect the area.

Anyway, I have had good result using both products to stop rust and prevent further rust.  



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If you do not want a hole without a plug, spend more time cleaning it and drying it otherwise the Madness will get you and you will see that hole you made from the front seat of your car and it will drive you crazy.  Just kidding... but it is hard to make it perfect unless you take the body offf and send the pan to the dip and strip, then powder coat the whole thing or re-paint... you see where I am going there.  @Marty Grzynkowicz just went through it the last 5 years.

Actually, you can go down that rabbit hole and get a Kranzle K1122TSS powerwasher 1400psi/2 gal/min some quickconnects in SS and a Mckillans PWhand gun.  This is the cat's meow for doing OCD stuff, cleaning building fronts, washing your car. see how close you can get with a pistol type, you can a foamer and get foam in that hole then rinse it well etc etc , but careful you might get wet

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Last edited by IaM-Ray

Well, mission accomplished. Turned out to be less involved than I thought. I imagined everything was going to be rusted out but it was good. A matter of cleaning a bunch of gunk mixed with brake fluid, undercoating and road grime. It cleaned up and then I used a wire brush and painted the area. Here’s photos of the unit I took out which could be made in India or Brazil (found that out later). We bled the system with one of those Motiv units and it was awesome. Everything seems to be working well. Let’s see if this one lasts another 20 years and if I’ll be here to see it.😉IMG_1863IMG_1864F1DA623F-6401-44B7-9736-2C9DA6E22F64

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@Impala If you change your brake fluid every two years, it should last forever. Keeping moisture out of the system is the answer.

With your nifty Motive bleeder, flushing/changing fluid is easy. I remove as much old fluid from the reservoir as possible with a vacuum pump/reservoir(or a permanent garage turkey baster). Then fill and bleed. It doesn't take long at all if you do it this way.

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