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Engine Tuning All technical chat regarding the 2JZ |
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27th July 2005, 06:44 PM | #1 |
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UK Spec - Auto Join Date: Sep 2004
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This Howto is intended to be a guide to changing the spark plugs on a Twin Turbo Supra
Tools & equipment need: 6 x spark plugs Allen key - 5mm Torque Wrench (not essential, but preferable) Spark plug socket head Socket wrench Small wrench extension bar (~3" Copper grease Firstly, with reference to the following picture, remove the bolts marked using the allen key. Remove the oil filler cap & then remove the plastic cam cover: You will now be able to see the coil packs & their associated cables. Replace the oil filler cap. Remove the 2 PCV hoses marked in the next picture. It is a good idea at this point to replace these for new ones as the originals may well be quite old & brittle. Now undo the retaining clips which hold the wires to the coil packs in place (marked in picture) & move them to the side, there will be 3 sets of 2 clips: Undo the connectors to the coil packs, there are 6: You should now be able to move the coil pack wires fully out of the way & to the side. Undo the bolts holding the coil packs in place, 2 each end of each coil pack - 3 coil packs: Remove the coil packs taking note of their orientation. You will now be able to access the spark plugs. Remove the spark plugs using the socket wrench, extension bar & spark plug socket head. Fit the new spark plugs, smearing a little copper grease on the threads of the plugs. Torque the plugs to 13ftIb If you don't have a torque wrench, tighten the plugs up until you feel the point of resistance (i.e. where the thread starts to tighten), then give them a 1/4 turn. Refit the coil packs & their bolts, reconnect the cables to the coil packs & locate the cables into their retainers. Fit the new PCV hoses, replace the plastic cam cover & refit the bolts holding it in place.
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27th July 2005, 08:57 PM | #2 |
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All done, if anyone spots any mistakes, please let me know.
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Cuth. "Beer is proof that God loves us & wants us to be happy" - Benjamin Franklin "Badger beer is the best" - God |
28th July 2005, 10:49 AM | #3 |
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Thats saved me some money
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28th July 2005, 07:38 PM | #4 |
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Yep it's a doddle, first time = 1hr max. If you've not ventured under the bonnet before & have no idea what to do it can be a bit daunting, even on something as simple as this.
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Cuth. "Beer is proof that God loves us & wants us to be happy" - Benjamin Franklin "Badger beer is the best" - God |
28th July 2005, 09:28 PM | #5 |
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Good write up
Changing them on an NA is a bit more involved
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28th July 2005, 09:42 PM | #6 |
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I remember a few years back when my work mate 'trounced' my new honda with his new N/A, I took a look at the engine & winced at the thought of changing the plugs. That said though, some cars are a lot worse.
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Cuth. "Beer is proof that God loves us & wants us to be happy" - Benjamin Franklin "Badger beer is the best" - God |
29th July 2005, 06:46 AM | #7 | |||||
[52.4 Miles] 50 MC 8:41
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My old FTO used to be a sod to change the rear three of the spark plugs (apparently). You had to remove the whole intake assembly and even then it was a pain.
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11th February 2014, 03:15 PM | #8 |
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Jap Spec GZ - Auto Aerotop (TT) Join Date: Jul 2004
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I'm after the part number for the grey clips that hold the harness in place, between the cam covers???
FOUND IT.
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J-Spec Twin Turbo Aerotop 3G Brakes Blitz nur spec r Full Stainless DC Blitz Active Front Spoiler Controler Greddy Boost + EXT Gauges Running 1bar OZ Superleggera UK Spec Bonnet Scoop UK Glass Headlamps Mines ECU Last edited by Gambit; 11th February 2014 at 06:26 PM. |
11th February 2014, 08:06 PM | #9 |
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Good Luck on that on ! The EPC is a bitch for those sorts of things.
If I remember correctly those clips have a number or a letter on them, do you know what that is and I'll see if I have any sitting around.
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Martin UK6TT + Bits & Bobs 'Remember folks, the inside lane isn't just for Xmas' MSOC FAQ MSOC Members Discounts MSOC Resources |
12th February 2014, 11:20 PM | #10 |
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Jap Spec GZ - Auto Aerotop (TT) Join Date: Jul 2004
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I searched for them here. http://www.mkivsupraownersclub.com/f...&highlight=cam
It is the same as this one. And I think it is this... Will let you know on Monday. |
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