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Best Way to Install Extra O2 Bung?

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Old

Apr 4, 2005 | 09:10 AM

#1

Paul Riccioli Jr

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Joined: Feb 2000

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From: Bound Brook, NJ USA

Car: 89 IROC-Z

Engine: 383

Transmission: 700R4

Best Way to Install Extra O2 Bung?

I bought an extra bung to weld in for a wideband sensor. Should I drill the hole first and weld the bung on over it or should I weld the bung on first and try drilling the hole after and risk hitting the threads with the bit?

Old

Apr 4, 2005 | 09:38 AM

#2

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Joined: Jun 2001

Posts: 9,550

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From: Charleston, SC

Car: 91 Camaro Vert

Engine: 02 LS1, HX40

Transmission: 2002 LS1 M6

drill the hole
scrape/grind the metal around the hole for a good weld
weld the bung on, centered over the hole.

Old

Apr 4, 2005 | 09:39 AM

#3

Supreme Member

Joined: Jun 2001

Posts: 9,550

Likes: 4

From: Charleston, SC

Car: 91 Camaro Vert

Engine: 02 LS1, HX40

Transmission: 2002 LS1 M6

btw, last time i did it i stuck a piece of metal rod thru the bung, into the hole.

that held it centered, and it protected the threads from welding splatter....

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