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Author Topic:   SS spark plugs?

63WHALER posted 04-13-2004 08:54 PM ET (US)
I have a quick question concerning spark plugs. I know in my applications they call for a Champion #QL77J4, and I've noticed the same plug is available through some marine outfitters in a Stainless Steel variety.
Are the SS any better or worth double to three times the cost of the standard plugs?
Thanks in advance!
dlmenius posted 04-13-2004 09:04 PM ET (US)
Is stainless steel a conductor? I didn't think there were (m)any free electrons.
63WHALER posted 04-13-2004 09:12 PM ET (US)
I checked the add once more and it stated a Stainless Steel shell and copper core ground electrode.
The price per one is $6.99 for SS and 3.59 for standard.
Just curious on others insight or experience with them.
Chuck Tribolet posted 04-13-2004 10:15 PM ET (US)
At those high voltages and low currents, a little resistance
won't hurt a bit. Remember that there are RESISTOR plugs
and RESISTOR wires, and their resistance is WAY above SS.
SS makes sense on a saltwater boat that doesn't get much
usage and only gets the plugs changed every few years. For
freshwater, or a 100 hours and change the plugs every year on
saltwater, save your bucks unless you have a plug corrosion
problem.

Chuck
Dick posted 04-13-2004 10:19 PM ET (US)
You will probably change your plugs once a year or once every other year at the most. I can't see any benefit to using ss body plugs. They will not perform any better than standard plugs just be more resistant to exterior corrosion.
Put a dab of anti sieze compund on the threads of the standard plugs when you install them and give the plug exteriors a spray of CRC 6-56, or similar, a few times a season.
My opinion. Don't waste your money on ss body plugs.
Dick

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Author	Topic: SS spark plugs?
63WHALER	posted 04-13-2004 08:54 PM ET (US) I have a quick question concerning spark plugs. I know in my applications they call for a Champion #QL77J4, and I've noticed the same plug is available through some marine outfitters in a Stainless Steel variety. Are the SS any better or worth double to three times the cost of the standard plugs? Thanks in advance!
dlmenius	posted 04-13-2004 09:04 PM ET (US) Is stainless steel a conductor? I didn't think there were (m)any free electrons.
63WHALER	posted 04-13-2004 09:12 PM ET (US) I checked the add once more and it stated a Stainless Steel shell and copper core ground electrode. The price per one is $6.99 for SS and 3.59 for standard. Just curious on others insight or experience with them.
Chuck Tribolet	posted 04-13-2004 10:15 PM ET (US) At those high voltages and low currents, a little resistance won't hurt a bit. Remember that there are RESISTOR plugs and RESISTOR wires, and their resistance is WAY above SS. SS makes sense on a saltwater boat that doesn't get much usage and only gets the plugs changed every few years. For freshwater, or a 100 hours and change the plugs every year on saltwater, save your bucks unless you have a plug corrosion problem. Chuck
Dick	posted 04-13-2004 10:19 PM ET (US) You will probably change your plugs once a year or once every other year at the most. I can't see any benefit to using ss body plugs. They will not perform any better than standard plugs just be more resistant to exterior corrosion. Put a dab of anti sieze compund on the threads of the standard plugs when you install them and give the plug exteriors a spray of CRC 6-56, or similar, a few times a season. My opinion. Don't waste your money on ss body plugs. Dick