Spark plugs (Auto vs Marine)
I have a 94 that is new to me and thought I would change the plugs in it. Its a Merc 350 Z212.
Do I really need Marine plugs or will auto plugs do just fine. Is there anything I need to look for when I switch them out? Or it the spacing that counts. Same as current installed. Thanks |
Re: Spark plugs (Auto vs Marine)
A spark plug is a spark plug. I used regular auomotive without issue. You want to make sure your plug wires are good and not letting any errant spark loose as that could be problematic. I would hope marine wires have extra insulation and larger boots than automotive, but I've never compared them.
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Re: Spark plugs (Auto vs Marine)
Marine plugs are stainless steel. Automotive plugs are not.
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Re: Spark plugs (Auto vs Marine)
There was a pretty good thread about this: http://www.mariahownersclub.com/foru...ark-plugs.html
Upshot - non-marine are OK if you change them frequently. Marine plugs are stainless and won't erode as quickly. Wires are extra insulated with better connections. Yes car engine compartments take a lot more weather exposure, but electrolysis, etc with the boat sitting in water (especially salt) wreaks havoc... |
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