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#1
03-20-2012, 10:53 AM
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Spark plug for 2005 197 TT with MCX
Forgot to look what spark plug I have been using and at 500 hours think its time to change them just for safety sake. Does anyone have the type of spark plug from DIM that I need. Its an MCX engine slightly modified at factory to make it for Tournament team. Should I do wires too?
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2 at 32' off 34 mph PB July 2006 
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#3
03-20-2012, 11:13 AM
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Quote:
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Previous: 1993 Prostar 205 Red 1998 Closed Bow Ski Boat, Ford 351, 310 hp, Acme 4 blade, Perfect Pass SG. FAQ Tyler Ski Club To me, this forum is about love of inboard boats. It is about the sharing of information and, on a good day, some humor. It is not about post count, brand of boat, or any other superfluous labels that lend themselves to a false sense of superiority. Please, respect one another, try to pass on accurate information, and keep your eye on the ball.
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#4
03-20-2012, 11:28 AM
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Quote:
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Gone, surfing.
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#5
03-20-2012, 11:55 AM
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I don't think the mod was much...blingier and the 1:1.25 tranny...I'm no expert at all...I cannot even figure out if the MCX is a LS1 or LT1 or what!!!
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2 at 32' off 34 mph PB July 2006
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#6
03-20-2012, 11:58 AM
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I had never heard the TT motors were any different. The slot tranny can be ordered on any PS 190/197. I do think it is standard on the TT, though.
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#8
03-20-2012, 12:44 PM
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I went with a NGK plug that was equivalent to the stock plug. The nice part was that they are available at a local auto parts store and much cheaper than the stock iridium/platinum plugs. If you still need the info, I can look it up tonight on the home computer. I have the same boat/motor/trans combination as you, FWIW.
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2005 ProStar 197TT, #28 of 100 Broken Bow, OK vacation cabin for rent - www.sipnskicabin.com PM me for a MC TT special rate.
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#9
03-20-2012, 12:53 PM
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They dug up my order from years ago...seems I have replaced them a few year back so I dont even need them. They did suggest a new cap and rotor though...part 1323...
Good guys!
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2 at 32' off 34 mph PB July 2006
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#10
03-20-2012, 01:50 PM
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Here is what EngineNut posted:
Actually, in that pre-cat engine.I would not use platinum or iridium plugs.I would use regular AC Delco MR43LTS gapped at .045". Platinum and iridium plugs like to run hot and lean. Relatively speaking, that engine runs cold and rich. You are going to get lots of conflicting answers but this is the recommendation I make to anyone that asks. The reason that engine came with 41-932 plugs in it is because that what GM put in it at their factory but we used MR43LTS in those non-cat engines for years with great results.
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2005 MariStar 210VRS - MCX - ACME #845 1994 Prostar 205 TBI 350 (previous boat) 2007 Sierra Classic 2500HD Crew Cab Duramax/Allison 6 speed War Eagle
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