Thread: Need to know sparkplug gap for a M116 engine.
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Old 04-23-2005, 09:31 PM
rickjordan rickjordan is offline
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Join Date: Nov 2000
Location: Vernon, CT
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Well I got the plugs and I also bought a proper gapping tool that measures down to .20 inches. The plugs that came out were up near .50 + inches. I had to adjust the new plugs just a little, put them in and the idle was nice and smooth. I haven't replaced the cap and rotor. Now it's been so long since I have had a car with a cap and rotor, what again is the sign that the cap needs replacing? As well as the rotor?
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