SVX Network Forums Live Chat! SVX or Subaru Links Old Lockers Photo Post How-To Documents Message Archive SVX Shop Search |
IRC users: |
#1
|
|||
|
|||
Spark pugs Q's what do you guys use?
K guys I've been noticing misfire under acceleration in my legacy. I instantly assumed spark plugs so I bring her home park in the garage and pull a plug to read it and see how they are looking. Expecting to pull a platinum plug out comes a Foiled NGK spark plug... (The EG33 is running rich since the swap) Its the same kind of plug I used when I had the EJ22 in the Legacy, but I swear I read the EG33 uses Platinums. So I call my local parts store and get the Beef on my plugs. The guys tells me the EG33 had Iridium plugs stock and I should use them. I ask the going price and they are Eight bucks a piece! So if I went with those plugs I would pay Fifty bucks and change for new spark plugs.
I was curious what you guys use in your SVXs. Do you guys use Iridiums, Platinums or just stocker NGKs? and whet should I use for my application? Thanks guys ~Jedz
__________________
1994 Subaru Legacy L-6 FWD 5-speed EG33 powered |
#2
|
||||
|
||||
Platinum Iridiums
IIRC, the OEM plugs readily available for SVX's are NGK platinums or NGK iridiums. When I bought mine (I went with iridium), both were around the same price at a hair under $10 each. At $8 a piece, that's a deal. Bosch platinum +2 and +4's have been run successfully by some on the network, but I prefer NGK's myself.
Considering how time consuming it is to replace the plugs (relative to a 4cyl Honda or Toyota for example) putting in anything other than platinums is a mistake, unless you enjoy the experience of replacing SVX plugs. |
#3
|
||||
|
||||
My high-mileage 91 SVX still has it's original NGK plugs. I don't know what type they are.
A while ago I was thinking that I really should change them. The Subaru dealer quoted me £12 (=$24) per plug, plus fitting. Multiply by 6 and thats £72 (=$144) just for the parts! I took the old ones out and they looked clean and shiny like new. So I put them back in again and didn't bother to buy new ones.
__________________
Subaru ECU and TCU Website 1992 Alcyone SVX Version L 1992 Alcyone SVX Version L 1994 Alcyone SVX S40-II 2004 Subaru Legacy 2.5 SE Sports Tourer 1996 Subaru Legacy 2.2 GX Wagon 1988 Subaru Justy J12 SL-II |
#4
|
||||
|
||||
Same here. My NGK Platinums have 107,000 miles, and 10 years of use on them. After putting my new exhaust in, we got a CE light which the select monitor said was a misfire in cylinder 3.
I thought it might have been a plug, so we pulled it and it looked almost new. I put a new one in anyway and replaced the coil pack (which was the problem) As long as the engine runs smooth, and I have good performance and get 25mpg, I am not touching the plugs until I have to.
__________________
. Subaru Ambassador 1996 Polo Green LSi #216..138,100 miles...SOLD JFICX8659TH100216.....Date of Manufacture: November 16, 1995..... Fuji Heavy Industries..Ōta North Plant....Ōta City,. Gunma Prefecture, Japan In-Service Date: January 2, 1997 "The Pristine Green Polo Machine” First Polo Green on the Network First Clear front turn signals, JDM Alcyone hood emblem, rear panel, and BOXER engine cover on the Network (US) (2000) First 5000K HID factory fog lights (2007) First SVX JDM BBS wheels on a USDM SVX (2013) HID lighting (5000K) for headlight and H3 fog lights, PIAA SuperExtreme 120W high beams, rebuilt EG33 longblock, Cometic head gaskets, Phase II flexplate, AMR aluminum radiator with custom silicone hoses, 160A high-output alternator in aluminum-ceramic coated case, new design alternator wiring upgrade v.4, rare factory headlight protectors, refinished JDM BBS mesh aluminum wheels and custom, polished billet aluminum new hex center caps, LED grille mod, R1 Concepts high-carbon cryo slotted rotors, Akebono ceramic pads, Goodridge S/S braided brake lines, Smallcar Stage 1 shift kit, ThermalTech aluminum/ceramic-coated valve covers, Energy Suspension urethane front & rear swaybar bushings, Bontrager22 rear swaybar with QS Components Chromoly Teflon/Kevlar endlinks, "$15.00/5 minute" suspension mod. Hella Supertone horns, Custom stainless steel exhaust system with 2" headpipes, Magnaflow cats, AeroTurbine AR25 resonator /AWD "Bullet" muffler. R.I.P. 2010 Subaru Outback Limited 2.5 CVT...338,000 miles. Totaled by a 1,300 lb. COW March 4, 2016 2014 Hyundai Avante Limited ...178,000 miles. Actually quieter and smoother than the Outback 2007 Mazda Miata MX-5 PRHT...102,000 miles. Plenty of parts, service and windshields. 4th Registered Network member —2/21/2001 My NEW locker..I...My Email..I..Wikipedia/SVX . . |
#5
|
||||
|
||||
And as hard as they are to change, that is not a bad idea.
__________________
. 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 |
#6
|
|||
|
|||
I've used Autolite Platinum plugs...
...changed every 30K for the last three times: never a problem with them.
At about $1.50 each after rebate I think they'll do the job for me in the next 90K miles, too! Cheers!
__________________
' 92 SVX @ 185K ' 91 420SEL @ 223K! ' 88 420SEL I. @ 178K (what a buy!) ' 87 F250 @ 180K ' 93 ZX-11D @ 29K ' 93 SC400 @ 93K 2001 Valkyrie Interstate @ 6.6K (Brynhild) Y2K NightHawk 250 @ 1,500 miles ' 88 420SEL II. @ 208K '85 F150 @ 135K |
#7
|
||||
|
||||
The factory plugs are double platinums. The difference is that there is a platinum barb laser welded onto the ground electrode. That's why they are expensive and that's why they last pretty much forever. That's also why they spark a little easier. It's a thinner point for the spark to jump to.
The iridiums that they stock at the store have a regular ground electrode. So expect to change them more regularly. These are the spark plugs to use if you are using nitrous oxide (platinum spatters in nitrous). You can also get the iridiums with the platinum laser welded on the ground strap but they are not going to be in stock at your local store. Other spark plugs work but they don't idle as well. The ecu controls ignition dwell and it's set to use the ngk double platinum plugs. When you go adding 4 fat electrodes and the ecu cranks down the coils you get ocassional missfires and stalls. |
#8
|
||||
|
||||
Daumn!! Ok, so Im going to replace my plugs next week.
Should I get NGK Platinum Double Electrode?? Thats it?? |
#9
|
||||
|
||||
From NGK's website, there are two iridiums.
- The double platinum has a platinum core and a platinum tipped electrode. - The more expensive iridium has an iridium core and platinum tipped electrode - The less expensive iridium plug has an iridium core, but a 'tapered, cut, ground electrode'. not platinum. Don't skimp. Get one of the first two. The part numbers are below. The ones you were quoted are probably the IX iridium , which I would avoid. From their website Spark Plugs NGK Double Platinum 4014 PFR6B-11 .044" $11.71 NGK Iridium plug 6741 IFR6E-11 .044" $11.71 NGK IX iridium 3764 BKR6EIX-11 .044" $7.32 |
#10
|
||||
|
||||
Quote:
Only the odd one that gets cracked or broken. They seem to burn so clean. My 82 wagon with over 400,000 ran perfect and still had the original plugs in it when it rusted to bits.
__________________
92 SVX LS Pearl 94 SVX LSi Barcelona Red 82 Brat 4WD Bob |
#11
|
||||
|
||||
How big of a deal is it to change plugs anyways? I mean, looking at the motor, it does seem pretty crappy, but what all would have to be done?
Also, having just purchased my first SVX, would it be a good idea to change my wires since the car is at 100k?
__________________
Jesus is the remedy 2015 Expedition EL Ecoboost Ebony Pearl '95 Subaru SVX LSi Home of the Bontrager Works 22mm rear sway bar!! |
#12
|
||||
|
||||
Changing the plugs on the EG33 is definately a time consuming task. I would set aside about half a day to get the old ones out and new ones in.
__________________
bLAh
|
#13
|
||||
|
||||
- There are no 'wires' to change. Each plug has a coil pack sitting on top of it.
- 5 of the 6 plugs are relatively easy to change. The three on the passenger side won't take but 10 - 15 minutes. You can't prepare for how hard it is the first time to remove and replace the one closest to the firewall on the drivers side. There appears to be insufficient room between the frame rail and the cylinder head to do anything. But if you follow the correct order and procedure, you will get it done. Do a search for 'spark plugs' and you'll find plenty of tips. I believe there's a write up in how-to as well Quote:
|
#14
|
|||
|
|||
DIY spark plugs
Yup There is one in The How to lockers (upper right corner of the screen)
Just did it yesterday. Tha drame is what takes the time. You have to take off the aiebox, and battery. Last plug as mentioned is a real pain |
|
|