aaron3

Is it safe to use anti-seize with the 928 aluminum block? Specifically, I would like to use it on the threads for the spark plugs and the block drains.

I couldn't find anything in the archives. I would assume with so many aluminum engines out there these days it's not an issue. I'd like to be sure with the Shark.

Gregg K

I used it for years on aluminum blocks. Spark plugs, et al. I cannot think of any possible problems it would cause. In fact, I don't think it has any detrimental effects on other materials either. Further, the can would most likely have disclaimers if there were issues.

Bernie

I really hope not.
I have every bolt that I have ever removed from my shark dusted with antiseize.

Gregg K

Thom, I stand like a dork, to be corrected. I've never heard that, until now. I'll be looking for the copper antiseize. I've also got it all over every aluminum part on bikes, cycles, cars, etc. Yikes. I hope he's wrong. I've never noticed any problems. Ok, I'll shut up and go back to my scheming and plotting. But I'll be back...

BrianG

My can of aluminum anti-seize says right on the can "specifically for aluminum applications". It's very important to have some anti-sieze on the threads of dissimilar metals.

BC

When I did my research for this, I was directed towards the "Neversieze" brand, which has alot of nikel in it, thereby improving the issues with corrosion from dissimilar metals.

Tails

The problem here is if the anti-seize has carbon in it as carbon will corrode aluminium.

Tails 1990 S4 A/T

GlenL

I asked Permatex if their standard anti-seize, the silver stuff, was OK for aluminum. They said that it was.

Here's what I posted to the email list on this:

I sent an email to Permatex inquiring about their 133A anti-sieze. To my
surprise, I received a phone call back. The gentleman said that there is
no problem using this product on aluminum even though it contains
graphite. He said the carbon was "inert" in this form. He did advise
using a liberal amount (surprise?) so that there were no uncovered
surfaces or air in the threads. This will prevent any galvanic corrosion.

Erik - Denmark

It seams to be depending of the brand - See e.g. the following links - I.e. read the instruction carefully before using some of these mystically products!
http://www.jetlube.com/NewFiles/asea...hor-High-28258 - These contents different metallic components as cobber, zinc etcetera, and each products have its own working area
http://www.chaseproducts.com/product..._antiseize.cfm - This contents (only) graphite and molybdenum disulfide (also no metallic) and seems to be for universal use

Chris

Ok just a heads up, some PO on my 87 had put antiseize on the spark plugs, I don't know what kind of stuff he/she used but looked liked the silver goop. Well this stuff congeled and went hard, made getting plugs in and out VERY difficult.

Then found spark plug thread chaser and cleaned all the threads out, now much better.

Chris