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Spark plug

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TSbladekiller	Nov 5 2011, 08:45 PM, updated 15y ago Return to original view \| Post #1
Casual Junior Member 363 posts Joined: Feb 2010	Dear forumers I've a few questions regarding spark plugs. Hope the experts here can assist me as i'm learning more on my car. 1. I look through my car's manual. Spark plug is stated: (NGK) FR7DTC. What does this mean? 2. The best spark plug is the iridium right? Cos I did some search as below: http://www.spark-plugs.co.uk/pages/technic...spark_plugs.htm 3. I thought each car only uses 1 spark plug? How to know whether how many plugs my car has? 4. Does changing the spark plug to iridium improves FC/acceleration as claimed? I look through some old posts regarding people MODDING their rides, most of them put spark plug iridium. 5. What is the standard price of one (1) iridium spark plug? Which shop in KL/PJ can install ORIGINAL ones? ..might add questions if i think of any. Thanks in advance!
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TSbladekiller	Nov 5 2011, 11:16 PM Return to original view \| Post #2
Casual Junior Member 363 posts Joined: Feb 2010	Funny thing is I found the spark plug model in Bosch brand, but it's stated NGK?? Not a famous car, Chery Tiggo. Wonder if u know the engine details to advise. Cheers
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TSbladekiller	Nov 6 2011, 08:42 AM Return to original view \| Post #3
Casual Junior Member 363 posts Joined: Feb 2010	QUOTE(wandzul @ Nov 6 2011, 12:42 AM) 1. Not sure 2. I would prefer saying the iridium is a longer lasting one 3. Normally 1 spark plug for each cylinder.. yours has 4 (ACTECO SQR484F as quoted in paultan.org) 4. Improvement (if any) is too little to notice. however it does last long 5. Around rm170 for 4 pieces if you buy direct from spare part shop (denso) thanks so much for the clarification. If engine is stated '4G_ _ _' meaning it has 4 cylinders running on gasoline right? 4 cylinders meaning 4 spark plugs.
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TSbladekiller	Nov 6 2011, 10:11 AM Return to original view \| Post #4
Casual Junior Member 363 posts Joined: Feb 2010	alright thx dares. any idea which is the best? Denso/NGK iridium/Iriway?
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TSbladekiller	Nov 6 2011, 03:05 PM Return to original view \| Post #5
Casual Junior Member 363 posts Joined: Feb 2010	No mine is the acteco engine. My current plugs are copper I believe, so would b trying to upgrade n try.
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TSbladekiller	Nov 7 2011, 09:24 AM Return to original view \| Post #6
Casual Junior Member 363 posts Joined: Feb 2010	QUOTE(scorgio @ Nov 6 2011, 10:36 PM) FR7DTC is Bosch model. Copper core, triple electrode. RM15/pcs. wow that's cheap... bro just a question, when i look for other brands lik NGK/Denso, the model i should look for is? If using Bosch to NGK cross ref: BCPR6ET So i should inform suppliers that i need spark plug BCPR6ET right?
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TSbladekiller	Nov 7 2011, 03:08 PM Return to original view \| Post #7
Casual Junior Member 363 posts Joined: Feb 2010	QUOTE(vr2turbo @ Nov 7 2011, 03:05 PM) Yes, if you have the cross reference correct...... thx for all the help here! appreciate it. now the problem is i cant seem to open the engine cover to explore further. keep pulling it up but something is locking it down. I thought i saw the service guy opened it like a flap.
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TSbladekiller	Nov 7 2011, 03:23 PM Return to original view \| Post #8
Casual Junior Member 363 posts Joined: Feb 2010	QUOTE(vr2turbo @ Nov 7 2011, 03:10 PM) My wife's Tiggo is still new so I have not open it up before also......as still maintained by the SC.... But I got this result in another forum.... Factory install : Bosch FR7DTC (Triple earth electrode) Some alternatives BOScH FR7DC, FR7DCX etc Denso K20PRU-11,K20PBR etc (normal),IK20 (Iridium), VK20 (Iridium/Platinum) NGK BKR6E-11 i read somewhere that the FR7DTC stopped production, replaced by some other model (didn't note down). so meaning if Denso or NGK i should look for the above model as stated right? thx bro Edited: Just found out that BCPR/BKR are the same but different in terms of ISO & JIS standards. » Click to show Spoiler - click again to hide... « Q21. What is the difference between the ISO and JIS standards? (BCPR and BKR or IK and IQ etc) JIS is the 'Japanese Industrial Standard' and specifies the height of the spark plug from the gasket or tapered seat of the sparkplug to the top of the terminal nut (or threaded terminal) as 53mm. ISO is the 'International Standards Organisation' standard for spark plug height and is 2.5mm shorter than the JIS standard at 50.5mm. While the small difference in height will not affect most vehicles (ISO and JIS types can often be interchanged), some vehicles (particularly with direct fire ignition or specially fitted plug caps) MUST use the correct plug standard or a bad contact between plug and cap may be result. See diagram Common ISO type plugs are NGK BKR, Denso K or IK and Champion C or RC. Common JIS types are NGK BCP, Denso Q or IQ. Source This post has been edited by bladekiller: Nov 7 2011, 07:25 PM
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TSbladekiller	Nov 7 2011, 07:41 PM Return to original view \| Post #9
Casual Junior Member 363 posts Joined: Feb 2010	QUOTE 14mm Thread Size, 19mm (3/4") Reach, 5/8" (16mm) Hex Size, Gasket Seat, Interference Suppression Resistor, Yttrium Enhanced Copper Core Center Electrode, Tapered V-Profile Nickel Ground Electrode, Removable Terminal Nut, .035" (0.9mm) Gap, Heat Range 7 Bosch Super Plus spark plugs feature a heavy duty yttrium enhanced copper core center electrode for superior reliability and increased resistance to spark erosion. The tapered, v-profile nickel ground electrode provides improved starting in cold weather and increased fuel ignitibility. The metal glass fused resistor allows for maximum interference suppression while the ribbed insulator design prevents misfires due to current leakage. source same as wat u found? btw this is the replacement model FR7DC+ i don't get what u r trying to say cos u mentioned triple earth electrode in your earlier post. This post has been edited by bladekiller: Nov 7 2011, 07:42 PM
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TSbladekiller	Nov 8 2011, 09:09 AM Return to original view \| Post #10
Casual Junior Member 363 posts Joined: Feb 2010	hmm im confused now on which to use.. shall i use: Denso: IK20? NGK: BKR6E-11? (sounds cheap that Rm8/pc used on waja)
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TSbladekiller	Nov 8 2011, 06:01 PM Return to original view \| Post #11
Casual Junior Member 363 posts Joined: Feb 2010	QUOTE(scorgio @ Nov 8 2011, 12:03 PM) Denso IK20 is iridium core. Got member selling a set of 4 for RM130-140 at Automotive Garage. BKR6E-II, if u dare to try, it may work fine or it's not suitable. U just risk RM32 + labour. If it works, then u'll save in the long run. alright i'll prefer the safer route, IK20 Denso. I think i know who's the seller, saw someone selling at that price.. Thanks scorgio Added on November 8, 2011, 10:41 pmThere are IK20 and IK20L. Holycow y so many models of the same numbering?? However, quoting from another forum someone's research on the diff: » Click to show Spoiler - click again to hide... « So now, lets look at the iridium plugs. Denso IK20 vs IK20L: I = Iridium type K = 14 x 16mm miniature plug 20 = heat range So far so good, everything seems to coincide with the stock spec, now comes the L... L = Reach: 11.2mm <--- spot something wrong here ? First I must say I'm not an expert. I merely see this does not coincide with stock specs (reach = 19mm). Would someone knowledgeable comment whether the reach can be different due to stronger spark achieved with iridium, or whether it should stay the same as stock plug ? What about without the 'L' ? Unfortunately Denso is not v clear on this either. Without L, it can mean: For Non-tapered seat: 9.5mm/11.2mm/19.0mm (Yay!?)/ 21.5mm For Tapered seat: 8.3mm/11.2mm If i am to guess, i think IK20 is more suitable provided my assumption that reach should remain the same even though it is iridium is true. Maybe gapping can be different, but i feel that "reach" should remain the same? Unfortunately I can't find the default gapping for Denso Iridiums. source This post has been edited by bladekiller: Nov 19 2011, 09:54 PM
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TSbladekiller	Nov 19 2011, 09:55 PM Return to original view \| Post #12
Casual Junior Member 363 posts Joined: Feb 2010	just changed to IK20 today at a nearby service shop. I found out that the old plugs are covered with some oil (black in color). the mechanic said to send my car back to the service centre to change dono what.... btw, the plug's thread is covered mostly in oil (2 out of 4 plugs, towards the left side of the engine). any sifu here knows what's the problem? any approximately how long to fix it ah? Added on November 19, 2011, 9:56 pmvr2turbo, i know how to open the cover alrd! haha, its sort of like a rubber stopper. just pull it hard n it will open. handle with care! This post has been edited by bladekiller: Nov 19 2011, 09:56 PM
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TSbladekiller	Nov 20 2011, 08:35 PM Return to original view \| Post #13
Casual Junior Member 363 posts Joined: Feb 2010	QUOTE(vr2turbo @ Nov 20 2011, 04:57 PM) Got take pic of the plugs? Oily or sooting? On my VR, I have run on Iridium, Platinum, Copper, Normal all also can run..... For the cover, pull from the front part? I remember you mention have to flip it up? bro pics as requested. the 'spinning' part is covered in oil, and 1 of them the tip almost kena oil d.. ya the cover will open like a flap once u managed to pull it up. mine was quite tight though, the serviceman unscrew the back and found out its a rubber stopper kinda lock. but becareful not to break th cover... QUOTE(peachmonkey @ Nov 20 2011, 08:10 PM) Apologies to TS for 'borrowing' his thread. Wanted to ask the sifu's here. For a Iswara LMST what plug is best suited to get that extra 'kick' during driving without effecting the FC too much? Currently running on original plugs and cables. no problem, as long as others willing to help This post has been edited by bladekiller: Nov 20 2011, 08:38 PM
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TSbladekiller	Nov 21 2011, 11:47 AM Return to original view \| Post #14
Casual Junior Member 363 posts Joined: Feb 2010	Ya top of engine block is dirty. Some oil stain, looks like very long adi. It's near the inlet where they pour the engine oil. Y ah? Might it sip through when changing the oil?
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TSbladekiller	Nov 21 2011, 08:49 PM Return to original view \| Post #15
Casual Junior Member 363 posts Joined: Feb 2010	QUOTE(vr2turbo @ Nov 21 2011, 01:48 PM) Yup, should be. Try cleaning around that area, but with the plugs on, in case some dirt fall inside. If internal problem the plug tip will be oily...... QUOTE(scorgio @ Nov 21 2011, 05:38 PM) bladekiller, ur old plugs look still ok. felt any difference after changing to Denso Iridium? thx scorgio & vr2turbo.. so i take your word for it after changing, accelerating seems to have a minimal improvement. but i realize when idling, the car is abit shaky?? dono due to this or not. otherwise im ok with the change. I'll wipe the engine when free! thanks for all the advice!
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TSbladekiller	Nov 24 2011, 08:57 AM Return to original view \| Post #16
Casual Junior Member 363 posts Joined: Feb 2010	Shit I just open the cover n unable to close back. Found out that the metal thing holding the rubber stopper is soft 1 , bendable. Hav to ask the serviceman to close it back aft wiping the top part later
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TSbladekiller	Nov 24 2011, 09:31 PM Return to original view \| Post #17
Casual Junior Member 363 posts Joined: Feb 2010	QUOTE(vr2turbo @ Nov 24 2011, 02:32 PM) Cannot bend back?? solved it. bend to normal place, then hit the cover hard to make it snap back!! do not push it slowly cos it'll bend the metal thing
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TSbladekiller	Dec 5 2011, 10:22 AM Return to original view \| Post #18
Casual Junior Member 363 posts Joined: Feb 2010	gapping? heat range? etc etc there's some online converter for yr current plugs to the Denso/NGK ones.
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TSbladekiller	Dec 5 2011, 03:25 PM Return to original view \| Post #19
Casual Junior Member 363 posts Joined: Feb 2010	depends on yr budget, and sifus comments. for my case, after listening to all the comments, i got myself iridium with the correct gapping. most important is to match back to the original one, or u may want to change some settings (eg heat range) to get certain improvement. however, don't know about u. but i prefer to be on the safe side.. use back original recomendation.
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