subiescottwrx

I have an 02 wrx sedan, what are the spark plug model numbers or a recommended brand(s)?

sorry in advance for posting in the incorrect forum if i did.

Wingless Wonder

iTrader: (7)

NGK PFR6G are factory-installed platinum spark plugs.

I replaced mine recently with NGK's BKR7EIX (one heat range colder than stock) iridium plugs gapped to .028". Be sure to check the gap on the new plugs. The platinum plugs I pulled from each cylinder only had a few thousand miles on them but the gaps were beyond factory specs at .034" to 0.035".

Some members like the NGK copper plugs, which conduct better but wear out quickly. Consider replacing them every 3000 miles for best performance. The copper center electrode begins to round off in a short time.

--
0==WW==0
"…axles of evil…" - george w. bush

subiescottwrx

thanks for the tip....i'll check it out

subiescottwrx

i need 4 plugs for my car right? i know dumb question...lol

fastfamilywgn

yeah it takes four and be ready for a tedious job to change them. make sure you have a universal joint for your socket it will make it much easier. I think it took me almost an hour

subiescottwrx

dag really? it took that long? by chance, do u have a url for a "how to"? i know how to do it generally for most vehicles, but havent done it for my subie.

subiescottwrx

n/m i found it
http://www.scoobymods.com/forums/sho...nge+spark+plug

fastfamilywgn

umm well i have the engine book right now from a friend
Driver side
remove battery, remove washer fluid bottle, removing rear window hose (if applicable) (sits nicly on strut mount if tied off,
unbolt ignition coil, disconnect, remove spark plug (use new plug to match socket size)

Pass side
remove air cleaner box, disconnect ignition coil, replace plug

I think the biggest pain is actually turning the plug out so I used an extension then a u-joint then another extension for removal

torque

plug 15 ft-lbs (new plug spec only)
ignition coil 11.8 ft-lbs


its really funny we just reassembled the whole front end of my buddies wrecked car this weekend and I can't beleive the number of torque specs that list a .7 or .8 (just a waste of ink) but I guess they're converted from newton meters

good luck with it bud I was truly amazed how much this job sucked but I had only ever changed plugs on a 4.0l jeep motor where ever plug is an easy visible reach.

If you have any more questions I'll check back tomorrow

VRT MBasile

iTrader: (17)

http://replacement.autopartswarehous...20Plug&dp=true

subiescottwrx

thanks much fastwagon, appreciate it..i'll give it a go in a week or two.....all i wanted to do was save a few bucks...other cars i've done in the past were way easy, didn't realize that my subie sucked in this respect.

VRT MBasile

iTrader: (17)

I thought the plugs were supposed to be torqued to 13....oh well, not much of a difference

fastfamilywgn

it may be 13 ft-lbs if they are used (crushed washer already) I pulled this spec out of the 2002 impreza service manual. It was very specific that this spec was for new plugs only. still no big deal i don't think I used a torque wrench on them before anyways. Although I probably will next time now that I have a 3/8. 1/2 drive torque wrenches just don't work for that low of torque setting

whtwrx1991

Check it out !!

spacemanchiff

4 hours??? I did mine in an hour and a half and only had to remove the windshield washer bottle and intake box.