Anti-seize on outboard spark plug threads?

[Marley]

Hi Guys

I am changing out my plugs and was wondering if it’s a good idea to put anti-seize on the treads.

Also what type of anti-seize is best if I am going to use it.

Thanks

 

[noluck]

i never have

 

[easydoesit]

Hmm. Plugs I use have a crushable washer that compresses at a specified torque. There is a torque spec for both plugs and motor, so I never have greased spark plugs.

 

[Marley]

Hmm. Plugs I use have a crushable washer that compresses at a specified torque. There is a torque spec for both plugs and motor, so I never have greased spark plugs.

That’s what I have normally done. I just saw a guy online saying to use anti sieze in salt water

 

[Samnjoe]

Always. Learned that wrenching on motorcycles.
Molyslip or even just a touch of grease.

 

[Reel Gone]

I prefer grease on threads going into aluminum but have never put anything on spark plugs. If using anti- seize be sure to get Non copper based for aluminum

 

[Pewpster]

I never used any on a 30 year old evinrude two stroke and didn't have any problems. The mercury Verado I have now says to use anti seize in salt water and has a part number for a specific copper based loctite product. Looks like the previous owner slopped on some silver color antiseize and it seems ok, but I have no idea how I would clean the threads out.

 

[Marley]

I never used any on a 30 year old evinrude two stroke and didn't have any problems. The mercury Verado I have now says to use anti seize in salt water and has a part number for a specific copper based loctite product. Looks like the previous owner slopped on some silver color antiseize and it seems ok, but I have no idea how I would clean the threads out.


View attachment 113412

I just checked the front or my motor. It says to use anti sieze in salt water. I’ll look up that part number. Thanks.

 

[Marley]

I never used any on a 30 year old evinrude two stroke and didn't have any problems. The mercury Verado I have now says to use anti seize in salt water and has a part number for a specific copper based loctite product. Looks like the previous owner slopped on some silver color antiseize and it seems ok, but I have no idea how I would clean the threads out.


View attachment 113412

Just looked it up. Looks like a loc tire product

Mercury - Mercruiser 92-898101389 Stick Antiseize

Mercury - Mercruiser 92-898101389 Stick Antiseize now available at Wholesale Marine. Shop today for low prices on OEM Mercury-Mercruiser parts.

www.wholesalemarine.com

 

[Pewpster]

What motor? Interesting Merc specifies different anti seize for different engines.

Just looked it up. Looks like a loc tire product

Mercury - Mercruiser 92-898101389 Stick Antiseize

Mercury - Mercruiser 92-898101389 Stick Antiseize now available at Wholesale Marine. Shop today for low prices on OEM Mercury-Mercruiser parts.

www.wholesalemarine.com

 

[Kilwinning]

My 2024 200 merc called for antiseize on plug threads, I used an aluminum compatible antiseize

 

[Marley]

What motor? Interesting Merc specifies different anti seize for different engines.

I have a 2022 90hp

 

[Jegermiester]

My 2024 200 merc called for antiseize on plug threads, I used an aluminum compatible antiseize

This product fits the bill as per detailed description...we used this brand name quite a bit in the O&G industry, it's good quality stuff.