Re: Leaking CV Boots
I've recently begun acquiring "old car" experience - a 1987 928. I just replaced all the CV boots. The outers were torn, one perhaps for a few years, the other perhaps for a decade. Not many miles, though, and not much in bad weather or at all in the winter. No track time, no hot brakes. Some observations that may or may not be relevant to this thread:
It's an unpleasant job since a lot of grease was still in the joints (!), which must be cleaned out. For the inner, non-torn joints, it was quite amazing how little the grease had moved - there was no grease on the boots much beyond where it was applied to the joint. On the other hand, the escaping grease from the torn boots truly makes a mess.
The joints were OK despite whatever crap had been entering them through the torn boots. This is not unusual, from what I've read - they are surprisingly resilient.
Put grease only in the joint, fill the whole boot, or something in between? I'm sure there are strong opinions, but no consensus. Filling them makes them leak, some say. I got the sense the grease doesn't migrate far, and the CV joints are not delicate, so I only filled the joint area (balls and "races"). Track use is a different situation, I'm not considering that.
2009 Cayman S PDK
1987 928 S4
F150, Prius, Smartcar, G650GS moto