Anti-Seize on O2 Sensor?

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Aug 4, 2005 | 01:18 AM

GRX

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Le Mans Master

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From: Silicon Valley Kalifornia

Anti-Seize on O2 Sensor?

Will anti-seize contaminate an O2 sensor? I usually use regular high temp anti-seize on the threads. TIA

Aug 4, 2005 | 01:22 AM

tjwong

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From: Portland Oregon

Quote:

Originally Posted by GRX

Will anti-seize contaminate an O2 sensor? I usually use regular high temp anti-seize on the threads. TIA

I have never had a problem as long as you use it sparingly. It don't take much to get the job done. Just a light coating on the threads only is adequate. I also suggest using a marine grade nickel compound that is rated at 2200 deg F. The standard silver stuff from NAPA is only good to 1500 or thereabouts.

Aug 4, 2005 | 11:22 AM

chevyc4

Instructor

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From: GERMANTOWN TN

Just be sure not to get the anti-seize on the sensor part down at the bottom. I fried two O2 sensors this way.

Aug 4, 2005 | 11:34 AM

chucks88

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From: Connectivette

I've been using a copper antiseize for the threads to my sensors. I believe that is what is made for.

Aug 4, 2005 | 11:36 AM

artvette

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From: Long Island NY

Quote:

Originally Posted by chucks88

I've been using a copper antiseize for the threads to my sensors. I believe that is what is made for.

Agree

Aug 4, 2005 | 12:01 PM

JAKE

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From: Kempner Texas

I believe new ones come with a compound already installed on the threads.

Jake

Aug 4, 2005 | 12:17 PM

onedef92

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From: Fort Knox, KY

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On a related topic, the 02 sensors are generally easier to remove warm, not cold.

Aug 6, 2005 | 02:54 PM

GRX

Thread Starter

Le Mans Master

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From: Silicon Valley Kalifornia

Quote:

Originally Posted by tjwong

Tjwong - This stuff is super-duper strength! I found this on the net...note "nuclear fittings"!

NICKEL SPECIAL, NUCLEAR GRADE

""The standard in the nuclear industry, Never-Seez® Nickel Special, Nuclear Grade is specially tested and certified pure for use in nuclear power plants. Each production lot of Never-Seez ® Nuclear Grade is tested for contaminants of sulfur, halogens and low-melt metals and each container is labeled with the lot number that certifies purity. Recommended for nuclear fittings, valves and steam mani-folds. Provides maximum protection from high heat up to 2400ºF and aggressive chemicals. Meets General Electric D50YP12, Westinghouse and Bectel's nuclear specifications. Tested to MIL-A-907.""