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I have a 2005 JCW. Have read many posts on when to change out plugs . At what mileage should this be done? At 10K , 20K, or later. Also am thinking about Brisk plugs. What is the right gap for these plugs .028,.030 or other? Any info helpful.
Should be done with the Inspection 1 service on any JCW car. That being about 30k miles. They SHOULD come pre-gapped, so don't worry about that but make sure to torque them to 30nm.
I did not find a definitive time when to change the plugs so I did mine at about 35,000. When removed the plugs looked like it was a good time to replacement them. It made a slight improvement in idle and smoothness. I installed Brisk DR12S plugs. The gap was very small (0.015 -0.020) when I recieved the plugs. Alta suggests 0.026 gap. I set them at 0.028, others have set them at 0.030. Anywhere around 0.0280 should be good.
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2006 MCS JCW GP #1405: Adj Front Camber Plates, 19mm Rear Sway Bar, MM Front Lower Brace, Milltek Cat-Back, TCE 13" Front/11.75" Rear BBK, 15mm Spacers, Wheel Studs, JCM Modified Intake, MM Filter, Gauges
Not sure about the gap....but motoring file did dredge up a mini sb along time ago about jcw plugs on gen1 cars....I think they said every insp2. A quick search will tell ya....I'm on a moble so it's tough for me to do it, or I would find it for ya, and paste it for you!!
Edit: MF says every service interval is new plugs for a JCW.
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l 2005 MCS l 11-04 Production l owned since new l RMW Tuned l Craven -17% Pulley l Craven Speed STD l Dinan CAI l JCW 380's l H&R 19 MM Swaybar l MSD Ignition l Power Steering Fan Duct l LightInSight l "EURO" MINI Armrest l Euro Parcel Shelf l Brake Light PULSAR(gen2)l Detroit Tuned Tensioner Stop l Blitzsafe/xmradio l Cobra 19IV CB l 4.5' Francis CB25 CB Antenna, mounted on the rear tow rig!!
Last edited by ZippyNH; 12-21-2009 at 07:34 AM.
Reason: Edit note
