Changing Spark Plugs On An R33

[mmm..beer]

hi guys

just wondering where i find the plugs on my R33 gts-t and do i need to gap to 0.8mm for a stage 1 mod to it with std turb

thanks

[RANDY]

Plugs are under the coilpacks, which are under the valley-cover (plastic with the Nissan bit printed on it).

You need to take off the intake crossover pipe, unbolt the black metal pipes next to that, BOV, rocker breather pipe, etc etc... Once you have clear access to that cover, undo the 10 bolts (allen key), and you'll see your coilpacks.

Unplug each coilpack. Metal clip like [ holds the plug onto the pack. Un-twist the metal harness clips so you can pull the whole wiring harness out of the way. (out of the valley completely)

Now, you can either undo each coilpack (2 bolts each) out of the coilpack bracket, or remove the coilpack bracket with all the packs still in it. The 2nd way might be harder, as the coilpacks are fairly clicked onto the spark plugs.

Get some compressed air, or an air compressor, then blow all down the valley. Get rid of all the dirt and crud around before you undo the spark plugs. (use proper spark-plug socket) Once they're out, you dont' want stuff going down the hole into the cylinder, so do one plug at a time. Old out, new in, old out, new in... 6 times eh? =-]

Standard gap is 1.1, from memory? 0.8mm is used when people have problems with coilpacks, or run so much boost that the air blows the spark out before it can make contact with the tip of it. Up to you and what you call "stage 1" I spose?

Good time to clean the coilpacks too... Pull the rubber boots off, clean and stretch the springs out a bit if some are shorter than others. Check for missing paint or cracks in the pack.

Reassemble. I guess you know how to put spark plugs back in, and how tight to do them up. ;o)

[Nathan_G1]

just did mine AGAIN.........today - due to missfiring problem.......good luck mate, its not fun, coil packs have 7 - 12m bolts holding them ontop of the sprak plugs, undo these and pull them up......get your spark plug socket and undo them, generally spark plugs are 1.1mm gapped, dont reduce this as sometimes u may get less spark.

put them in, spray your coilpacks with some contact cleaner (dries hell quick) and put em on, bolt them down, and put your shit back together

its not fun i tells ya

[siddr20]

^^ tell me about it..

Esp getting the last three spark plugs out without gettin getting the piping over the top off.. lol..

BCPR7ES

I run NGK BCPR6ES in RB25's gaped at 0.8 mm

NGK BCPR6ES come in 1.1 mm gap (BCPR6ES – 11) and in 0.8 mm gap (BCPR6ES – 8)

Standard boost = BCPR6ES – 11

12 psi = BCPR6ES – 8

Up to 19 psi = BCPR7ES – 8

Over 19 psi = BCPR7ES – 6

^^ this might help you!! (NGK coppers)

Edited March 7, 2007 by siddr20

[MANWHORE]

search for a thread by wogsrus. I put in all the details about sparkplugs in there.

I personally prefer a different one than the one sid is using. Reason is in the thread.

[siddr20]

Whats your reason man??

[Nathan_G1]

mine are PFR6G-11............NGK platinums, like the saying goes, platinum plugs for a platinum slider, LMAO clearly not, just making sure i get good ones, $124.70 later for all 6,

however the ones i took out were race plugs, insane as well, so im getting them ordered in as noone stocks them, and putting race plugs back in

[Birnie]

Another DIY thread i just happenned to get a copy of and keep.....reformatted into a WORD doco for easy printing.

Exactly the same as what was in the original Spark Plug thread all those years ago now.

You can pay me later...

SKYLINE___Changing_the_Spark_Plugs.doc