What to use to plug nipple on Upper Manifold.

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Jul 21, 2012 | 11:50 AM

misterstyx69

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From: Smiths Falls.(near Ottawa!.Mapquest IT!)

What to use to plug nipple on Upper Manifold.

I got the small vacuum ports taken care of with some vac-caps.
Besides getting the nipple/pipe welded up, I am wondering what you guys use to Block off the Biggest Vac pipe located on the rear of the upper manifold.(the one about 3/8").
I want to do it clean,so no Hose and bolt and clamp suggestions.
Thanks Guys.STYX.

Jul 21, 2012 | 12:19 PM

wstrohm

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From: Fountain Valley, CA

I do hope you aren't writing about the vacuum source for the brake booster...

Jul 21, 2012 | 01:59 PM

jayscoobs

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Yeah that sounds like the brake booster vac line.

Jul 21, 2012 | 02:21 PM

K-Tune

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From: Gulf Breeze, FL

Cut the steel nipple off flush, use a tap to put threads in the remainder of the hole then put a teflon tape sealed allen head plug in it.

Jul 21, 2012 | 02:46 PM

RENESISFD

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A better way would be to drill out the metal sleeve and then tap the aluminum.

Jul 21, 2012 | 05:28 PM

XLR8

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From: NJ

Silicone vacuum caps with zip ties. Otherwise, weld it.

Jul 21, 2012 | 07:52 PM

misterstyx69

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From: Smiths Falls.(near Ottawa!.Mapquest IT!)

.This is an FD upper on an FC so I had to block something off!!I think I got it figured out.
I adapted some hose,going from that front nipple(near the TB) and downsized it for my GM Map sensor off that nipple.The other nipple on the outside runner(passenger side) is what I plan to use for my Brake booster.
The S5 lower manifold has a Vacuum port for the Brake booster also,But I found that the Oil injector block off bolts fit the thread pattern,so I put a bolt there with a copper crush washer,
It is nice and clean looking now.
Thanks guys for the advice,I appreciate it.