It is hard to tell in that photo if it's corrosion or material deposits. Aluminum can corrode.. but it doesn't turn black, that I know of.. usually, it's a white/gray color. If the black isn't below surrounding surface, try and see if it'll scrape off with the backside of a knife or something similar that won't mar the aluminum.
Here is what i got as response from Meziere Enterprises!
I cant recall using Tap water at any time but i may be wrong.
The coolant is eating your pump. What is happening is this: There are dissimilar metals in your cooling system. They are creating an electrical current.
The aluminum is being eaten away as the molecules swap positions (that is how the electricity is made in most cases. There is a possibility that additional grounding (extra ground straps) may help. I also suggest a “sacrificial anode”. Draining the system and using pure distilled water helps as well.
To answer your other question it is quite common to see this. Certain parts of the world the water that comes from the tap aids this process.
Hey guys. I'm in Ohio, in a county that has e check, emissions checking. Anyway, I took my car for test so I can renew my registration and they told me that the probes they use for the exhaust could not get a reading. So, they would not pass me. Said there is a "sample dilution" and could be...
I don't use the washers much at all, but the other day, I found that the drivers side only came up the window about 1/2 way, with a lot of fluid. I took the cowl panel part way off and ran it and saw there were no leaks in the hoses or fittings. I removed everything and took the nozzle and blew...
OK, first .... I apologize for this moving around. I was thinking "Interior" or "Electronics" ..... then tonight as I was prepping to post regarding my final "fix" .... I noticed the "General Tech" section and upon further review, I think it belongs here so here is where I brought it. :cool:
So I’ve searched the forums, tried solutions to anything remotely close to sounding like my issue, and I’m having no luck.
So we bought our first Thunderbird! Test drove it, loved it, car seemed to be mechanically sound. Well less than an hour into owning it the car decided it doesn’t want to...
When we upgraded our PCV system, we touched upon this subject, and the features/benefits of positive oil control, pressure differentials, inductance, reluctance, Bernoulli, Charles and Boyle, and fluid dynamics/kinetics.
All good stuff, a bit much for my 18YO, but he was into it when he realized...
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