Hey everyone,
I did a compression test on my old 1991 Previa today. It did super well at ~180psi, which is really satisfying for me, since it is jdm engine with unknown miles. But I noticed that the disk brakes had a thick layer of corrosion, as well as some fasteners on the engine. That rust was not there when I parked the van for storage in a 2 car garage in November. This was before our first snow storm, so no salt exposure. So I am wondering, what may have caused this corrosion? My beater car is also parked in the garage, and brings with it salt and slush in the winter, and water after a rain storm. What do you think caused the corrosion? Salt in the air or humidity from evaporating water on the DD beater? Next time I will coat the disks with FF, and be very careful to remove the FF before driving the van.
I did a compression test on my old 1991 Previa today. It did super well at ~180psi, which is really satisfying for me, since it is jdm engine with unknown miles. But I noticed that the disk brakes had a thick layer of corrosion, as well as some fasteners on the engine. That rust was not there when I parked the van for storage in a 2 car garage in November. This was before our first snow storm, so no salt exposure. So I am wondering, what may have caused this corrosion? My beater car is also parked in the garage, and brings with it salt and slush in the winter, and water after a rain storm. What do you think caused the corrosion? Salt in the air or humidity from evaporating water on the DD beater? Next time I will coat the disks with FF, and be very careful to remove the FF before driving the van.
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