Newbie antiseize question.

[billroth]

After browsing tons of threads on removing siezed fasteners of one sort or another, I wonder if you should put antiseize on everything.

Is there any place you shouldn't?

Lawrence

[speedracer]

Spark plugs for one...

[Danny_Ocean]

I would only use anti-seize on stuff you have to remove regularly for maintenance (drain plugs, wheel lugs, etc.). Above poster says not to use it on spark plugs, but I have in the past (on American V8's) without incident.

[911pcars]

"I would only use anti-seize on stuff you have to remove regularly for maintenance (drain plugs, wheel lugs, etc.). "

And for fasteners that aren't regularly removed, use nothing? That sounds like a short-sighted solution. Here's one reason to not use; don't use anti-seize if you never plan to disassemble a threaded component (for eternal optimists).

Any time dissimiliar metals are in contact there's a galvanic reaction that results in molecules co-mingling. This results in separate parts becoming one with the earth. More so with threaded fasteners. Even similar metals do this (repeat this 12 times; "Heat exchanger nuts").

To ensure parts can be separated at a later date, or earlier than you anticipate, use antiseize, but sparingly. Wikipedia should insert a large description under the term "sparingly". Although some would differ, I put a small dab onto spark plug threads. On a 911, spark plugs (steel) thread into cylinder heads (aluminum).

Sherwood

[Danny_Ocean]

On "permanent" or "semi-permanent" parts, I use Loc-Tite red or blue.

[rfuerst911sc]

I have been back yard wrenching for about 35 years and I put anti-seize on everything I take apart or replace including spark plugs. I check some items regularly ( plugs,wheel lugs,suspension parts ) for torque and have never had an issue. I use the standard silver goop you buy over the counter. Like anything else "moderation" is the key, just a thin coat is needed. Just my amateur 2 cents.

[sig_a]

I just finished reinstalling my entire stock exhaust system including the heat exchangers and used copper paste type Lubro Moly Anti-Seize Compound liberally. Why the recommendation to use "sparingly"? The nuts are mostly "prevailing yield lock" type.