may have a tiny leak, not sure. Its not enough to impact the brake behavior while on/driving, but it may be impacting other things, or preventing the pump from producing 21+ constantly.

if i want to check the o ring between the booster and MC - do I need to disconnect any hard brakelines, or deal with brake fluid/bleeding at all?

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Andrew
Montclair, NJ
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1982 300D Turbo
120k
Petrol Blue Green