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Old 13-05-2021, 16:11   #1
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3.3 HP Mercury Bolt torque

After reading the recent thread on trouble with frozen bolts on 3.3 outboard I want to loosen and anti seize the 6mm bolts on the lower unit and torque them tight. What would you use for anti seize, I have Lanocote and Nikel. by Jet-Lube (pure nickel) The outboard is only weeks old.
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Old 14-05-2021, 09:47   #2
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Re: 3.3 HP Mercury Bolt torque

Well thanks for reading but no joy on answering, we are heading remote and no internet for a while so won’t be responding
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Old 14-05-2021, 13:39   #3
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Re: 3.3 HP Mercury Bolt torque

I cant help on the torque but my tip is to use Loctite 242 or 222 threadlocker or similar anaerobic sealant instead of antiseize. The reason I say this as it still stops the corrosion but you dont risk the bolt coming loose.
I do use nickel anti-seize on exhaust bolts where the temp is too high for 242

I have done this for decades with good results.
No experience with Lanocote but plenty love it.
Remote sounds good.

Enjoy your cruise.
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Old 14-05-2021, 13:47   #4
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Re: 3.3 HP Mercury Bolt torque

Duralac is the best for that. Tefgel should be OK also, but has the potential for backing off.
I use a normal 10mm wrench and hold it in the middle to no get to much leverage and get it moderately tight from there.

If you can get a “high tack” lubricant, WD40 had one last time I was in Home Depot (18 months ago) spray the entire powerhead with that in several coats. As the motor heats and cools it will work it’s way into any thread/ flange crevices.
Instead of salt!
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Old 15-05-2021, 04:44   #5
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Re: 3.3 HP Mercury Bolt torque

Tomodore, let me recommend that you tuck a bolt torque table in your files somewhere. While you can get specific manufacturer's torque values from a service manual, knowing the generally accepted torque value for a given size (and sometimes, quality) bolt keeps you in the game. Here is an example:

https://www.google.com/search?q=bolt...ynlZgDeaBmijCM
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Old 18-05-2021, 18:22   #6
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Re: 3.3 HP Mercury Bolt torque

Thank you for the responses. We returned to Puerto Escondido this evening and back on line, well sort of since the coverage is spotty. But the view and climate rock.
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