Not a Charcoal Briquette
The CTBNL has returned from its stint in the car hospital. There was nothing really wrong with it, this was some much over due preventative maintenance. In the past 35 months and twenty-eight thousand miles in the family the only real service it has had is oil changes and tire rotations every 5,000 miles in my driveway.
With the car fast approaching 75 thousand miles it was time to do the real big 60,000 mile service. This includes changing practically every vital fluid on the car and replacing the timing belt. In the Miata it is pretty safe to extend the usage of the rubber timing belt because the engine is the non-interference type. If the belt breaks you don’t mash the valves into pistons or anything, you just end up coasting to a stop. Plus, in California the timing belt change interval is 90,000 miles because it is considered part of the emission system and has to be warrantied for that long, the part number for the California belt is the same as for everyone other state.
When the mechanic called to tell me the car was ready he told me that when they pulled the valve cover off to do the timing belt they noticed these large chunks of congealed oil on top of the cylinder head. He then asked me on what oil I used and how often I changed it, etc. He then dissed my brand choice told me I should be using a synthetic blend instead of pure dino oil. Whatever.
This car had only 40 something thousand miles on it when the previous owner bought it at 12 years old. I bet the original owner was a little old lady who drove it to church on Sundays. And church was only a half a mile away. I believe this caused the build up, but then again I believe UFOs exist an aliens walk among us.