Winter Maintenance

Every year High Plains Raceway has a free track day. Anybody who has been an open lapping customer during the calendar year is eligible, as is any member in good standing of the clubs who own the track. It is held between Christmas and New Years, unless weather causes a delay.

But I need to get the car sorted before I can take it out. I have a long list of tasks for Michael to help me do to do for me. I was hoping they’d do the track day on Friday, as that looks to have the best weather. But it got scheduled for Wednesday. So Michael and I had a lot of work to do on Tuesday:

  • Front discs
  • Front pads
  • Flush brakes (maybe)
  • Drive belt
  • Change oil
  • Clean air filter
  • Mount the 2bular exhaust

The rear pads were replaced in June, and I’ll have to replace the rear discs next time I replace the pads. Brake fluid was new in June and has roughly three track days and only a few thousand miles on it.

Tuesday, December 26

Tuesday turned out to be quite cold. I turned the garage furnace on after breakfast and hoped to get it up to 50. The thermometer in the garage read 25. I almost never see it reading below 32. Michael slept in and we spent too much time talking about what we were going to do instead of doing it. And, of course, we had to make a trip to the auto parts store, and we grabbed lunch. (The Chrysler reported the outside temp at 8 degrees.)

In the end, all we got done was the brake hardware.

I’m software, not hardware, so please forgive my ignorance as I point out the obvious.

I’ve never given the discs much thought before, I’ve never had one in my hand. When I unboxed them it was obvious because of the slots that there’d be left and right. I didn’t look for any other asymmetries. I didn’t give much thought to the slots until I held the new discs up against the old ones still mounted on the car.

First, the vents in the new discs are different than the vents in the old ones. The vents on the old discs are asymmetrical. The new ones are not. The old ones vent the same direction with respect to the car’s travel. The new ones, one will be going forward, the other back. The left side vent matches the old one, the right side doesn’t. Sadly, my photo doesn’t illustrate very well.

Second, the slots are in the opposite orientation to the holes in the drilled discs.

I’m guessing that the difference in the vents is due to the drilling. With the slots, it doesn’t matter where the vents are. But for the holes, the location of the vents matters.

Confirmation that the pads were due to be replaced. All four pads were similarly worn, except the inside pad on the left, where the wear is uneven and bottom half of the groove is gone.

It snowed much of the day, so I was anticipating a possible change to the schedule. If they change it to next week, I’ll have to skip it. Genae kept checking the weather radar and it showed no snow. But clearly it was snowing. The TV weather wonk said it was “fog snow”. Never heard of it before.

The snow and cold contributed to our lack of progress. It will be easier to do the exhaust in the driveway with the ramp. And it’s best to get the oil warm before changing it. If we open the garage door we lose all our warm air. Even the quick spin around the block to check the brakes was interesting. Our cul-de-sac is frozen packed snow. Plows have been by the other streets around the school, but there were still big patches of slush.

 

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