mjt Posted July 17, 2017 Share Posted July 17, 2017 I was going to fit new plugs to our Mk2.5 1.8HE only to find the useless Haynes doesn't give a torque setting for them. It only gives one for the coil retaining bolts. So can anyone tell me what torque I should use for the plugs? 1 Quote Link to comment Share on other sites More sharing options...
stef123 Posted July 17, 2017 Share Posted July 17, 2017 torquing up spark plugs is overrated lol 1 Quote Link to comment Share on other sites More sharing options...
dezwez Posted July 17, 2017 Share Posted July 17, 2017 just do them up tight don't no that there is a torque setting for them Quote Link to comment Share on other sites More sharing options...
stef123 Posted July 17, 2017 Share Posted July 17, 2017 NGK give this as a guideline. Personally I never torque them up. Quote Link to comment Share on other sites More sharing options...
mjt Posted July 17, 2017 Author Share Posted July 17, 2017 Thanks for that Stef. Quote Link to comment Share on other sites More sharing options...
iantt Posted July 17, 2017 Share Posted July 17, 2017 12nm Quote Link to comment Share on other sites More sharing options...
mjt Posted July 18, 2017 Author Share Posted July 18, 2017 Job done. The old plugs came out in perfect condition, all the same colour and the gaps still exactly 1.3mm. As far as I know they were the originals and have covered about 30,000 miles. They look like they could easily have done another 38,000. Quote Link to comment Share on other sites More sharing options...
Goodare187 Posted August 12, 2020 Share Posted August 12, 2020 Hi need to change mine but don't have a torq wrench so do I just finger tighten the plugs Thanks Quote Link to comment Share on other sites More sharing options...
F0CUE Posted August 12, 2020 Share Posted August 12, 2020 Just judge by hand. Screw them in to the end then give a wee bit extra as long as they are secure don't overtighten them or you will have fun the next time. Quote Link to comment Share on other sites More sharing options...
Goodare187 Posted August 12, 2020 Share Posted August 12, 2020 OK great thanks for the help Quote Link to comment Share on other sites More sharing options...
Goodare187 Posted August 12, 2020 Share Posted August 12, 2020 So i changed all the plugs I've changed the coil pack and still the same jumping between 800 and 1000 and settling around 800 should i try new leads Quote Link to comment Share on other sites More sharing options...
F0CUE Posted August 12, 2020 Share Posted August 12, 2020 Disconnect the minus battery lead for about 10 minutes then put back and start the car and let it idle for a bit then take it for a run and let the ecu learn the new values. Also check the crank case breather pipe just above the throttle body beside the alternator they tend to swell up and tear at the bend due to the heat coming from the alternator and can cause kangarooing. Quote Link to comment Share on other sites More sharing options...
Phil3747 Posted August 12, 2020 Share Posted August 12, 2020 I removed one of my plugs just to check it a few months ago and a couple of weeks later, it started misfiring and the EML was flashing, took it into Ford under warranty and they diagnosed a cracked spark plug and changed it. Had exactly the same issue on my daughters 2013 1.0 Ecoboost a couple of weeks ago when the plug I checked cracked the porcelain when I re-fitted it, and no I didn't overtighten them !! Has anyone else experienced this ?? Quote Link to comment Share on other sites More sharing options...
pcaouolte Posted August 13, 2020 Share Posted August 13, 2020 Yes, I had a cracked one after they were all changed by a Ford dealer at a service. It took a couple of weeks for me to notice the problem. The dealer swapped the cracked plug FOC. Quote Link to comment Share on other sites More sharing options...
Goodare187 Posted August 13, 2020 Share Posted August 13, 2020 OK well thats the next one I did the battery thing took out all the plugs just in case and put everythin back and it sorted out for about 5 mins sat on the drive and now just idling above 800 Quote Link to comment Share on other sites More sharing options...
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