Spark plugs, Bosch |
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Spark plugs, Bosch |
Ray Warren |
Mar 5 2004, 07:20 PM
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#1
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Member Group: Benefactors Posts: 415 Joined: 1-October 03 From: Canada Member No.: 1,214 Region Association: None |
I read an earlier post about spark plugs and Brad
had mentioned that they use Bosch W7DC. I picked up some W7DC plugs today but the electrode seems to protrude farther than the W7CC plug. What should I gap them at? |
McMark |
Mar 6 2004, 01:29 PM
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#2
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
My car with Pertronix ran at .050".
According to the Bosch Spark Plug Application Guide the spark plug code breaks down as follows: W - 14 mm threads 7 - Heat range (2 = coldest, 11 = hottest) D - Thread reach 3/4" (0.708" with tapered seat) Extended Tip Electrode C - Copper core spark plug W - 14 mm threads 7 - Heat range (2 = coldest, 11 = hottest) C - Thread reach 3/4" Regular Electrode C - Copper core spark plug |
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