Spark plug Torque setting ?

[Pops]

Does anyone know what the torque setting is for a rb25det , I wanna re-gap my plugs but need to know this first . Thanks in advance .

[Pawley]

You only need 9 to 15 ft lbs to compress the washer, the idea being that first tightening is 9lb then if you take them out you re-tighten to 11lb then 13--->15

taken from http://www.gtr.co.uk/forum/upload/showthre...ark+plug+torque

[Pops]

Thanks Pawley nice info .

[FIL]

do your plugs up until they seat, then give them about another 1/2 to 3/4 turn....

[blind_elk]

According to the NGK site, about 20 ft/lb - cold.

[Pops]

Grrr I hate conflicting replies Just joking , thanks for the replies .

[dyl33]

can someone tell me the exact touque setting for rb25det s2 spark plugs im confused (ngk iridium)

Edited September 13, 2011 by dyl33

[dyl33]

can someone tell me the exact torque setting for rb25det s2 spark plugs im confused (ngk iridium)

[blind_elk]

According to the NGK cattle dog, the torque for a spark plug with a flat seat, 14mm thread diameter in an Aluminium head, ie an Iridium plug in an RB25, is 18-21.6 lb-ft.

You need to remove and install the plug when the engine is cool.

[Kinks]

do your plugs up until they seat, then give them about another 1/2 to 3/4 turn....

do this for NEW plugs only, because the washers compress. if you reinstall used plugs then you should do them up to a torque figure, which will be a fair bit less than 1/2 a turn after seating once the washers have already been compressed.

i approximate with "feel", based on how tight it was to turn 2/3 a turn when first installing. then when reinstalling i put the same effort in to tightening which ends up being maybe 1/10th of a turn. it's not much.

one day when i have money to burn i'll buy a torque wrench

[dyl33]

Thanks fellas

[rig136]

Tighten until it goes loose again and then back it off half a turn. Jk. I've always done it by feel. Run them down by hand and then nip them with a ratchet. No more than 1 turn. U do get a calibrated wrist over time

[dyl33]

Are copper plugs (BCPR6ES) torque setting the same as iridiums.? 18-21.6 lb-ft

NEVERMIND

Edited June 7, 2012 by dyl33

[jhjones]

The engine manual says 20-29nm (14.75-21.39lb/ft)

[dyl33]

So do you pick a Number inbetween 14.75lb/ft and 21.39lb/ft?

Edited June 7, 2012 by dyl33

[dyl33]

Oh is it 14.75lb/ft old plugs . And 21.89lb/ft new plugs?

[boostn0199]

Best way is by feel you definately feel when they are approacing that spot where you need effort and thats where you stop.

For me its always about half to thre quater turns.

[rb2534]

I did new plugs and coils today on my Neo, cleaned the seats and spun the plugs in by hand till they seated then around between 2/3 to 3/4 of a turn they were firm and felt good