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Three lifts and five cars. Let's get to work! |
We interrupt my current electrical class (get it, "current" and "electrical") for a day in the shop to work on a few other projects. This was a good chance for all the class members to bring in their own cars and work on some issues and do some real work on real cars. By real people. With real tools and lifts! For Real! For what it's worth, after my current semester I'll still have the upcoming winter term and the fall 2025 term to finish all the automotive classes. After that, who knows. The school offers auto body, diesel, and welding classes too. There's always more to learn.
On a 2013 VW GTI we checked out a rear window that didn't work all the time, and got to see how the insides of the regulator work. This car also had no coolant temperature reading on the dash. This posed the first question of "what is the problem?" because it might be either the temperature sensor wasn't sensing temperature, or it might be just the gauge in the dash wasn't working! It's like you've got to actually use your brainpower a bit to start addressing problems, kind of like real life! PRO TIP from our textbook, always verify the problem that the customer has. If you can't recreate it, you probably can't fix it.
So, to cover all our bases we looked up the specs on the sensor in our shop resource and saw that there were 2 of these sensors on this car. One sensor on the output of the radiator, and one closer to the engine and the thermostat. Shoot, we even had a diagram telling us where the sensors were located. No problem! For the first one we just had to remove the air filter, intake hose and, uh, well, (looking all over), the sensor was NOT where the manual said it would be! Fast forward 24 hours, and we figured out that the manual had the wrong photo, because while info was for the Mark V GTI, and not the Mark VI GTI that we had in the shop. Bottom line, sometimes the book is wrong.
We also did some work on a car that had another issue crop up, because in the middle of working on something with the car up on a lift, it turned out that one of the rear calipers was missing the two bolts that hold the caliper on. Uh, long story short, we had to order two bolts and fix that before we could do anything else. You really don't want someone's car leaving your shop when it's unsafe, even if it came in that way.
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Headlight cleaning supplies. |
Closer to home, the NMS Cayman rolled in and got a headlight cleaning, so the 15 year old plastic headlights now look way better than they did. One fact of life seems to be that plastic headlights get foggy over time as the plastic ages, so the good news is that with various strengths of sandpaper, cleaning with a degreaser, and then say 3 coats of clear coat, you can get these things looking great. I'd worked on these headlights at home with a headlight kit before, but the simple wet-sanding, clean, clear coat method I used this week looks way better.
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Passenger headlight, before picture #1. Looks used, old, foggy. |
I think we started with 600 grit wet sanding, then moved to 1,000 grit wet, and finally 2,000 grit wet. Grit, Grit, Grit. That is a LOT of GRITS! As Vincent LaGuardia Gambino (Joe Pesci) says in the movie My Cousin Vinny: "How do you cook your grits? Do you like them creamy, regular, or al dente?"
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A work in progress, starting to look better. |
After wet sanding we cleaned up with a wax and grease remover, then let it dry, and finished with 3 clear coats, letting everything dry in between each coat.
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Driver side light when finished. Not perfect, but much improved. |