c3 brake booster test

[Randall K.]

From this post (https://www.forums.ncrs.org/showthre...replacement-c3), it seems that an alternate test method would be to use a vacuum pump instead of intake manifold vacuum to test the booster. I assume that the master cylinder does not need to be in place for this.

True??

Thanks
Randy

[Russ S.]

Re: c3 brake booster test

Randall, You are correct on both counts.