Changed the spark plugs
Page 1 of 2 12 LastLast
Results 1 to 15 of 20

This is a discussion on Changed the spark plugs within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; I finally changed my spark plugs tonight at 42k miles. I love my WRX as much as anyone can love ...

  1. #1
    Registered User psychobooe's Avatar
    Join Date
    Mar 2004
    Location
    USAF
    Posts
    17

    Changed the spark plugs

    I finally changed my spark plugs tonight at 42k miles. I love my WRX as much as anyone can love an inanimate object, and I love the beautiful EJ20 that comes in it. However, that flat four is a super pain in the ass to change spark plugs on. Everything went relatively smoothly, but it still took 2 hours. Sorry, I just had to rant a little. By the way, I went with the Iridium NGK one step colder (BKR7EIX-11) and they are awesome. I could tell a huge difference in response just in the few miles driving around tonight.

    psycho
    Try not, do or do not. There is no try. - Yoda
    Mods

  2. Remove Advertisements
    ClubWRX.net
    Advertisements
     

  3. #2
    Registered User AjIsDope's Avatar
    Join Date
    Aug 2002
    Location
    SoCal
    Posts
    7,759
    It took me a it of time to swap them in my car the first time (about 1 hour) but I saw where I went wrong and now it will only take about 30 minutes.
    03 Cobra
    566whp/515wtq

    Pics
    & Dyno
    Pics

  4. #3
    Registered User psychobooe's Avatar
    Join Date
    Mar 2004
    Location
    USAF
    Posts
    17
    Yeah, I'm sure I could do it faster the next time. However, I went with the Iridiums so I won't have the pleasure for at least another 30k.
    Try not, do or do not. There is no try. - Yoda
    Mods

  5. #4
    Registered User Darrell's Avatar
    Join Date
    Sep 2004
    Location
    Indy, IN
    Posts
    715
    So...... gonna help those of us who haven't done it and tell us the trouble spots?
    Mine: '05 PSM WRX 5MT Sport Wagon, Cobb AP
    Wife's: '05 SRR 2.5RS 5MT Sport Wagon

    The Knack. It's a rare condition characterized by an extreme intuition about all things mechanical and electrical ... and utter social ineptitude.

  6. #5
    Registered User zoinks's Avatar
    Join Date
    Dec 2003
    Location
    Portland, OR
    Posts
    1,525
    A lot of people use a universal joint to angle the socket in, but I can do it quicker without it. I prefer to use a spark plug socket and a 3" extension. The combo that I have fits perfectly inside the frame rail. I just find it easier to feel what I'm doing without the uv joint. Also there's a tutorial around here somewhere. I had to change mine at least 3 times in a couple of days trying to diagnose a problem. Just take your time and don't strip/break/cross-thread anything and your good.

  7. #6
    Registered User psychobooe's Avatar
    Join Date
    Mar 2004
    Location
    USAF
    Posts
    17
    I agree, a spark plug socket and a 3" socket and a 3/8" rachet work perfect. It comes out right at the edge of the block. I don't like the jointed extension because I can't feel how much torque I'm putting on the spark plug and I don't wanna break the damn thing off. So, my advice is a spark plug socket, a 3" extension, and a 3/8" rachet and you should be good to go on all sides. By the way, you have to take off the battery, move the washer bottle, and take off the air box.
    Try not, do or do not. There is no try. - Yoda
    Mods

  8. #7
    Registered User zoinks's Avatar
    Join Date
    Dec 2003
    Location
    Portland, OR
    Posts
    1,525
    And actually people always say how much of a pain they are, but I think that they are quite easy to get to. Maybe not as easy as most fwd i-4s but much easier than a V8 crammed 6 feet under the cowl. The main thing is having the right sockets/extensions.

  9. #8
    Registered User psychobooe's Avatar
    Join Date
    Mar 2004
    Location
    USAF
    Posts
    17
    You just have to go into it knowing that you have to take out the battery/washer bottle/air box. Once they're out of the way, it's pretty easy.
    Try not, do or do not. There is no try. - Yoda
    Mods

  10. #9
    Registered User
    Join Date
    Jul 2003
    Location
    C/S, CO
    Posts
    42
    Is there a writeup on this? ...maybe ScoobyMods? When am I supposed to change plugs on my '05 STi and my wife's '05 Legacy GT?
    2005 STi Stage 2 n other stuff.

  11. #10
    Registered User enash99's Avatar
    Join Date
    Sep 2004
    Location
    Palm Harbor, FL
    Posts
    1,375
    a write up would be nice. I have heard you have to remove the manifold. I am going to do mine next weekend when i change the uppipe. Only removing the airbox/batt/washer bottle. would be ideal. Thanks for the info.

  12. #11
    Registered User
    Join Date
    Jul 2003
    Location
    C/S, CO
    Posts
    42
    Yes a writeup would be very helpful...I take it ScoobyMods doesn't have anything for SPlugs?
    2005 STi Stage 2 n other stuff.

  13. #12
    Registered User IDAFC21's Avatar
    Join Date
    May 2004
    Location
    Avondale, AZ
    Posts
    1,386
    Quote Originally Posted by psychobooe
    You just have to go into it knowing that you have to take out the battery/washer bottle/air box. Once they're out of the way, it's pretty easy.
    Exactly, once those are all off they're very easy to get to, all you have to do is unscrew a bolt on each of the coilpacks and pull them out, then stick the spark plug socket in and take the plugs out, you'll need a small extension to get all the way in there. The coil pack on the drivers side rear can be a little pain to get out cuz its pretty close to the frame, but if you wiggle it around enough you can get it out. I was surprised at how easy it was, tho coming from my old car anything is easier, because on my old car (was a V6 Sebring) you had to take off the whole upper intake plenum just to get to the rear 3 plugs

    Its much easier on this car. AND you never have to worry about which plug wire goes back on which plug, cuz there are none!

  14. #13
    Registered User Matrix 1193's Avatar
    Join Date
    Mar 2004
    Location
    Berlin, Connecticut
    Posts
    331
    Quote Originally Posted by psychobooe
    I finally changed my spark plugs tonight at 42k miles. I love my WRX as much as anyone can love an inanimate object, and I love the beautiful EJ20 that comes in it. However, that flat four is a super pain in the ass to change spark plugs on. Everything went relatively smoothly, but it still took 2 hours. Sorry, I just had to rant a little. By the way, I went with the Iridium NGK one step colder (BKR7EIX-11) and they are awesome. I could tell a huge difference in response just in the few miles driving around tonight.

    psycho
    Where did you get them and how much did you pay for them?

  15. #14
    Registered User psychobooe's Avatar
    Join Date
    Mar 2004
    Location
    USAF
    Posts
    17
    I got them from JSC Speed and they were $9 a piece. I think it was $41 total with shipping for the four of them. Here's a link http://www.jscspeed.com/wrx/engine/ngk_plugs.htm

    psycho
    Try not, do or do not. There is no try. - Yoda
    Mods

  16. #15
    Registered User Matrix 1193's Avatar
    Join Date
    Mar 2004
    Location
    Berlin, Connecticut
    Posts
    331
    Quote Originally Posted by psychobooe
    I got them from JSC Speed and they were $9 a piece. I think it was $41 total with shipping for the four of them. Here's a link http://www.jscspeed.com/wrx/engine/ngk_plugs.htm

    psycho

    I dont have a crazy ride yet so should i go 1 step colder, and when you buy them from JSC speed they are gapped properly?

Page 1 of 2 12 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •