Spark Plug Wires

BigDiesel

Seaman Apprentice
Joined
Jul 6, 2003
Messages
46
Yes, I know that the ignition, electrical, and fuel systems for a boat differ from their counterparts in a car. However, are the spark plugs wires also different? I would think that an 8mm spark plug wire would be the same.<br /><br />What do you think?
 

Trent

Captain
Joined
Nov 17, 2001
Messages
3,333
Re: Spark Plug Wires

True marine wires use corrosion resistant brass terminals.
 

Boomyal

Supreme Mariner
Joined
Aug 16, 2003
Messages
12,072
Re: Spark Plug Wires

check with your local auto parts store. My OMC 302 uses wires that are different due to their routing. On the automotive equivalent, the wires leave the distributor, go over the valve cover and down to the plugs. <br />Because of the water jackets on the marine version, the wires leave the distributor, go down along the front of the cylinder heads, then back along to the spark plugs.
 

merc 140 pontoon

Petty Officer 2nd Class
Joined
Aug 23, 2003
Messages
129
Re: Spark Plug Wires

I wonder if an automotive wire that caused a fire would invalidate your insurance.
 

seahorse5

Rear Admiral
Joined
Jan 24, 2002
Messages
4,698
Re: Spark Plug Wires

Many inboards use different distributors than the equivilent automotove engine, so the connectors my be a different size or style. The following is the Federal Code concerning marine plug wires.<br /><br />[Code of Federal Regulations]<br />[Title 33, Volume 2]<br />[Revised as of July 1, 2001]<br />From the U.S. Government Printing Office via GPO Access<br />[CITE: 33CFR183.440]<br /><br />[Page 776]<br /> <br /> TITLE 33--NAVIGATION AND NAVIGABLE WATERS<br /> <br /> CHAPTER I--COAST GUARD, DEPARTMENT OF TRANSPORTATION (CONTINUED)<br /> <br />PART 183--BOATS AND ASSOCIATED EQUIPMENT--Table of Contents<br /> <br /> Subpart I--Electrical Systems<br /> <br />Sec. 183.440 Secondary circuits of ignition systems.<br /><br /> (a) Each conductor in a secondary circuit of an ignition system must <br />meet SAE Standard J557.<br /> (b) The connection of each ignition conductor to a spark plug, coil, <br />or distributor must have a tight fitting cap, boot, or nipple.<br /><br />[CGD 73-217, 42 FR 5944, Jan. 31, 1977, as amended by USCG-1999-5832, 64 <br />FR 34716, June 29, 1999]
 
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