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View Full Version : Vacuum plugs - thread pitch confirmation



billjr212
06-26-2014, 03:58 PM
Just thought I'd slide this note out there for the historical record that I confirmed the thread pitch for the intake manifold ports for the brake booster and evaporative emissions control system.

I didn't like the idea of just zip tying on a vacuum cap after deleting these systems. I initially wanted to get a nice allen head plug to fill the holes, but ended up going with these aluminum ones from McMaster Carr.

1/8 BSPT. http://www.mcmaster.com/#2617k46/

This is before I put the plug in for the evap (just to the bottom left of the throttle cable bracket)
30618

This is after I put the plug in for the brake booster
30619

AZPete
06-26-2014, 05:13 PM
Perfect timing, Bill. I just ordered them from McMaster-Carr. Thanks.