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∙ 18y agoThe Jaguar manuel saya the torque is 22-28Nm (newnton meters) conversion is :1 newton meters = 0.737562149 foot pounds So 16-20 foot lbs Mike O
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∙ 18y agoWhen the plugs are finger tight, tighten them with a ratchet 1/16 of a turn.
The plugs are to be tightened to 13 lb-ft. which is just hand tight with a short ratchet. Don't over tighten them! The threads in the aluminum heads have enough problems as it is.
You get the manual for the engine that you are replacing the plugs in then you use your torque wrench and tighten to the specified torque. If you have an aluminum head, be super careful and be sure to use the correct torque spec.
100K
Remove the plugs one at a time and replace with a new plug you have gapped properly. Tighten to the proper torque Do not over-torque plugs. You risk damage to cylinder heads (particularly aluminum ones), and proper firing depends on the plug being at precisely the right height relative to the cylinder. I will list a link to Torque Specs. below. It is necessary to remove the upper intake plenum. Purchase the intake gaskets when you purchase the plugs. You also have to remove the coils one at a time, remove the plugs w/a 5/8" spark plug socket, coat the threads of the new plug with a small dab of anti size compound, thread the plugs in using only the socket and extension after the contact the head tighten an additional 1/16 turn.
I just tighten them with a regular spark plug socket rachet. You should be able to feel when to stop tightening.
Torque the spark plugs to 11 lb/ft.
It seems to depend on the spark plug. I replaced the Motorcraft plugs with Bosch Platinum+2 plugs. Look here for what Bosch says about torques (search for the word "torque"): http://www.boschautoparts.com/Resources/FAQS/SparkPlugs.htm The box of the Platinum+2 plugs said to torque them to 15 ft.-lbs., which is what I did. Good luck!
Start with a cool engine, do not do this job with the engine hot. The head is made of aluminum and can be easily damaged when hot. Remove the plastic engine cover. Using an Allen wrench remove the coil packs (some models do not require the Allen wrench). You can now see the plugs inside the head. Using the appropriate spark plug socket remove the spark plugs. Check the gap on your new spark plugs and start screwing them in by hand to prevent cross threading the plugs. You'll have to use an extension to get the plug down into the head. Use a torque wrench to tighten to the appropriate torque, overtightening can ruin the aluminum head. The job should take 45 minutes to an hour.
11 lb/ft.
it has eight right?
Purchase a new set of plugs, anti-seize compound, dielectric grease, and plug wires. Make sure you get custom fit wires that are made for your vehicle. Replace the plugs and plug wires one at a time. Lay out the plug wires in order to see the length. Remove one plug wire and the plug that wire connected to. Blow out the plug hole areas with compressed air. Set the gap on the plugs as you install them according to your owner's manual or the placard located under the hood. Apply anti-seize compound to the threads of each plug. Install that plug and tighten to the correct torque. If you do not have a torque wrench tighten with a 3/8 " drive ratchet and do not over tighten. Do not use a 1/2 " ratchet or you will over tighten the plug. Apply a very slight amount of dielectric grease inside the plug wire boot. Install the plug wire that matches the length of the one you just removed. Push the plug wire down over the plug until you feel it pop on. Connect the other end to the distributor, routing it exactly like the old plug wire. Repeat these steps for the rest of the plugs & wires. Install the coil wire and you are done. Remember, one at a time or you will get them mixed up. I will post a link to spark Plug Torque specs. Use this to determine the correct torque or look in your owner's manual.Purchase a new set of plugs, anti-seize compound, dielectric grease, and plug wires. Make sure you get custom fit wires that are made for your vehicle. Replace the plugs and plug wires one at a time. Lay out the plug wires in order to see the length. Remove one plug wire and the plug that wire connected to. Blow out the plug hole areas with compressed air. Set the gap on the plugs as you install them according to your owner's manual or the placard located under the hood. Apply anti-seize compound to the threads of each plug. Install that plug and tighten to the correct torque. If you do not have a torque wrench tighten with a 3/8 " drive ratchet and do not over tighten. Do not use a 1/2 " ratchet or you will over tighten the plug. Apply a very slight amount of dielectric grease inside the plug wire boot. Install the plug wire that matches the length of the one you just removed. Push the plug wire down over the plug until you feel it pop on. Connect the other end to the distributor, routing it exactly like the old plug wire. Repeat these steps for the rest of the plugs & wires. Install the coil wire and you are done. Remember, one at a time or you will get them mixed up. I will post a link to spark Plug Torque specs. Use this to determine the correct torque or look in your owner's manual.