The Subaru SVX World Network   SVX Network Forums
Live Chat!
SVX or Subaru Links
Old Lockers
Photo Post
How-To Documents
Message Archive
SVX Shop Search
IRC users:

Go Back   The Subaru SVX World Network > SVX Main Forums > Technical Q & A

Reply
 
Thread Tools Display Modes
  #1  
Old 07-29-2003, 11:16 AM
fredrobbins
Guest
 
Posts: n/a
Changing Plugs

I've just passed 100,000 miles, and still have the original plugs in the engine. I think it's time for a change, and dealer pricing is out of sight... as well as an all day affair to drive 50 miles each way.

I'm sure somebody --- many bodies --- have changed their spark plugs. What brand of platinum plug is recommended, and how does one gain access to all 6 plugs? Is this a practical DIY project?

Thanks in advance,

Fred Robbins
Reply With Quote
  #2  
Old 07-29-2003, 12:00 PM
JLittell
Guest
 
Posts: n/a
I saw a great "How-To" on this somewhere on the net or in here for that matter. I don't remember where it was?? I used it and I got my plugs changed in about forty minutes and a lot of patience! (and cusing!) It's definately a DIY project with all the right tools.

Many of us have chosen either NGK Iridiums or the Denso Iridiums. Both are great plugs.

Check this link out:

http://www.subaru-svx.net/forum/show...5&pagenumber=2

Last edited by JLittell; 07-29-2003 at 12:05 PM.
Reply With Quote
  #3  
Old 07-29-2003, 12:05 PM
fredrobbins
Guest
 
Posts: n/a
Well..........

See what you can find out. I'm sure somebody will kick in some good info -
Reply With Quote
  #4  
Old 07-29-2003, 12:12 PM
JLittell
Guest
 
Posts: n/a
Someone will pop in sooner or later. I can find it at my home later if no one can find the write-up. Once I do, Maybe Earl can add it to our "How-To" locker? Earl you awake today?
Reply With Quote
  #5  
Old 07-29-2003, 12:19 PM
fredrobbins
Guest
 
Posts: n/a
John

What are "iridiums" ? I remember NGK platinums, Lodge platinums, etc. Have I been asleep for too many years?

Fred
Reply With Quote
  #6  
Old 07-29-2003, 12:29 PM
JLittell
Guest
 
Posts: n/a
Iridiums are supposed to be 8 times stronger than platinum, 6 times harder, and with a melting point 1200 degrees higher. New laser welding techniques make it possible to make a spark plug with an iridium electrode. The result is a plug that requires less voltage to spark, burns more of the fuel in the cylinder, and can spark at LEANER air/fuel mixtures resulting in higher horsepower and better gas mileage. You do not have to gap these on the SVX!

Although the plugs are more expensive, you don't have to change them as often as garden variety spark plugs. The iridium electrode is extremely resistant to erosion, so it can last MUCH longer than a normal plug. (Longevity will vary by usage, fuel mixture, and other factors.)

It's the ultimate spark plug. Available in stock heat range, or one range colder for high boost (18+ psi) race applications.
Reply With Quote
  #7  
Old 07-29-2003, 04:57 PM
NikFu S.'s Avatar
NikFu S. NikFu S. is offline
Takin tools to task
 
Join Date: May 2003
Location: A-town, Alaska
Posts: 7,280
Send a message via MSN to NikFu S.
Registered SVX
i run iridiums.
just incase you never get the info you need, heres what i did.

its not easy. youll need to remove the air filter and airbox. i have a cone and i just pushed it out of the way so im guessing youll need to. take out the batter if you want.
youll need a socket wrench (ratchet) of course and a plug socket. i at some point needed two extensions. you might need a screwdriver.
first thing to tackle is all the coils on one side. the black things covering the plugs. they are bolted in. i learned from someone to unscrew the bolt almost all the way, and use the last couple threads to catch the coil and pull it out. just yank them and they should pop out. move all the coils out of the way and get to the first plug. its in there deep and hard to feel around. i just dropped in the plug socket with the extension, then connected the ratchet. youll definitely have to do this on the farthest one in (plug on cyl #6). unless you want to use the access hole. i didnt do this because it was covered in some kind of hardened dirt that bonded to the plastic. >_<
just have patience and try different things if you have to. the first time will always be the hardest but after that youll either always do it yourself, or never want to again. 0_o
when you pull the plugs out make sure there is no tape. one of my boots was ripped and the last owner put tape on it and it was touching the plug, burning it. i just scraped it off because it was brittle and crusty.
to put them in put one into the plug socket and just feel around. they almost fit horizontally. put them all in and put all the coils back on (with bolts, mine was missing one) and reconnect everything. good to go.
Attached Images
File Type: jpg plug #3.jpg (60.2 KB, 152 views)
__________________
"That which can be asserted without evidence
can be dismissed without evidence."


'92 Dark Teal SVX LS-L, >146,000m
3 pedals, 5 speeds., restoration underway.
2012 Honda Insight, slow but cute.
Reply With Quote
  #8  
Old 07-29-2003, 09:28 PM
JLittell
Guest
 
Posts: n/a
Changing Spark Plugs

Found it! Here's the link:

http://www.ryanmacdonald.com/car/howto/plug/plug.html

Maybe Earl can can convert it to PFD Adobe add it to the How-to??

There's are few good other How-To's of his website! He did a great job with descriptions and pictures! Credit to Ryan if he's still around!
Reply With Quote
  #9  
Old 07-29-2003, 10:05 PM
ensteele's Avatar
ensteele ensteele is offline
Betcha can't buy just one!
Alcyone Gold Contributor
 
Join Date: Jan 2002
Location: Burlington, WA
Posts: 19,552
Send a message via ICQ to ensteele Send a message via Yahoo to ensteele Send a message via Skype™ to ensteele
Registered SVX Classic SVX
Yes, I am awake today, just busy. I will add that to the locker tonight.
__________________
.
Earl .... ... .... ><SVX(*>

Subaru Ambassador

[COLOR=”silver”]1992 Tri Color L[/COLOR] ~45K (06/91) #2430
1992 Dark Teal LS-L ~184K (05/91) #0739
1992 Claret LS-L ~196K (05/91) #0831
1992 Pearl LS-L ~103K (06/91) #1680
1992 Pearl LS-L ~151K (06/91) #2229
1992 Dark Teal LS ~150K (07/91) #3098 (parts car)
1992 White LS-L ~139K (08/92) #6913
1993 25th AE ~98K (02/93) #164
1993 25th AE ~58K (02/93) #176
1993 25th AE ~107K (02/93) #215
1993 25th AE ~162K (02/93) #223
1994 Laguna Blue Pearl LSi ~124K (1/94) #2408
1994 Laguna Blue Pearl LSi ~144K (10/93) #1484
1994 Laguna Blue Pearl LSi ~68K (10/93) #1525
1994 Barcelona Red LSi ~46K (02/94) #2624
1994 Pearl LSi ~41K (12/93) #1961
1995 Bordeaux Pearl LSi ~70K (02/95) #855
1996 Polo Green LSi ~95K (03/96) #872
1997 Bordeaux Pearl LSi ~55K (08/96) #097
2003 Brilliant Red LS1 Convertible ~29K (04/03) #8951
1999 Magnetic Red LS1 Coupe ~33K (04/99) #6420

My Email | Old Locker | New Locker | Picture of 15 of the 19
Reply With Quote
  #10  
Old 07-30-2003, 12:03 PM
tuzem
Guest
 
Posts: n/a
Hi Guys! I just changed one side of my engine with Bosh Platinums last night and now my car is missing!? I won't idle very well and the engine sounds like some farm-equipment rather than an omni-potent flat 6 when going below 3000 rpm! Could have I over tighten the plugs? Or left them loose? Please help! I'm depressed!

Nick
Reply With Quote
  #11  
Old 07-30-2003, 12:07 PM
JLittell
Guest
 
Posts: n/a
I would pull them out and put one back in a a time. You might want to check to see if they are going in straight. Make sure your coils (boots) are pushing in correctly. Do not force them!
Reply With Quote
  #12  
Old 07-30-2003, 12:19 PM
tuzem
Guest
 
Posts: n/a
Thanks! That's what I fugured I'd try tonight. Should I try starting my engine with one plug out (or the boot)? That way I could find out which plug is causing the trouble, right? Man... it was so easy on my in-line four One more thing... I assumed those plugs came pre-gapped. I asked for SVX plugs in Auto Zone...

Nick
Reply With Quote
  #13  
Old 07-30-2003, 12:26 PM
JLittell
Guest
 
Posts: n/a
You don't have to gap the plugs on iridium and platinum plugs
Reply With Quote
  #14  
Old 07-30-2003, 01:25 PM
ensteele's Avatar
ensteele ensteele is offline
Betcha can't buy just one!
Alcyone Gold Contributor
 
Join Date: Jan 2002
Location: Burlington, WA
Posts: 19,552
Send a message via ICQ to ensteele Send a message via Yahoo to ensteele Send a message via Skype™ to ensteele
Registered SVX Classic SVX
I should have posted earlier, but I have a new how to on replacing the plugs in the How-To Locker. It gives the torque and checking the boots. Hope it will help out.
__________________
.
Earl .... ... .... ><SVX(*>

Subaru Ambassador

[COLOR=”silver”]1992 Tri Color L[/COLOR] ~45K (06/91) #2430
1992 Dark Teal LS-L ~184K (05/91) #0739
1992 Claret LS-L ~196K (05/91) #0831
1992 Pearl LS-L ~103K (06/91) #1680
1992 Pearl LS-L ~151K (06/91) #2229
1992 Dark Teal LS ~150K (07/91) #3098 (parts car)
1992 White LS-L ~139K (08/92) #6913
1993 25th AE ~98K (02/93) #164
1993 25th AE ~58K (02/93) #176
1993 25th AE ~107K (02/93) #215
1993 25th AE ~162K (02/93) #223
1994 Laguna Blue Pearl LSi ~124K (1/94) #2408
1994 Laguna Blue Pearl LSi ~144K (10/93) #1484
1994 Laguna Blue Pearl LSi ~68K (10/93) #1525
1994 Barcelona Red LSi ~46K (02/94) #2624
1994 Pearl LSi ~41K (12/93) #1961
1995 Bordeaux Pearl LSi ~70K (02/95) #855
1996 Polo Green LSi ~95K (03/96) #872
1997 Bordeaux Pearl LSi ~55K (08/96) #097
2003 Brilliant Red LS1 Convertible ~29K (04/03) #8951
1999 Magnetic Red LS1 Coupe ~33K (04/99) #6420

My Email | Old Locker | New Locker | Picture of 15 of the 19
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -6. The time now is 10:08 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
© 2001-2015 SVX World Network
(208)-906-1122