Reply to "Steering rack Lube; 90wt or grease?"

rapierMember

quote:
It also says don’t exercise the rack lock to lock while the car is suspended because this may blow a boot (huh?).

I 'blew a boot' on a rack years ago.

I filled a new rack with 90 oil. Then I went from lock to lock whilst the car was on stands.

There was a 'floop' noise when the rubber boot released a big gloop of oil over the floor. Either the boot split or it pulled it self out of the clamp - I don't remember which.

I think this is because you can move the rack very quickly when the front wheels are off the ground and the oil doesn't have enough time to flow across the rack - so pressure builds up in the boot and it lets go.

1/14/082:44 AM

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