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Author Topic: spark plugs  (Read 3128 times)

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Wayne

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spark plugs
« on: 15 September 2007, 16:17:57 »
can anyone sent me a picture of the Omega engine pointing out where the spark plugs are?
mines a 1998 S Reg CDX 2.5 V6 Estate

i just bought 4 x "Bosch Plus4" spark plugs and want to fit em myself, ha ha

is it easy peasy? and have i made a GOOD choice, cost me £19.99 from Halfords
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mahony

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Re: spark plugs
« Reply #1 on: 15 September 2007, 16:25:09 »
If you only bought four plugs your going to have to buy another two for a 2.5 as there six in all,drivers side quite easy on a 2.5/3.0 but passenger side a bit of a pain,you have to move the cable tray out of the way to get to the rear  plugs,sorry have not got a pic.also i have used the super fours in my omega with no problem,others i believe have reported uneven idling with them fitted and reccomend the standard vauxhall plugs (which are also bosch). im sure theres a how to in the how to section.
« Last Edit: 15 September 2007, 16:29:17 by mahony »
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Wayne

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Re: spark plugs
« Reply #2 on: 15 September 2007, 16:35:35 »
Damm!
so i just wasted £19.99 ? Aaarrrrgghhhhhhhhhhhhhhhh

AND i need to buy another 2 ?  as Homer says........... "DOH" !!!
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Martin_1962

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Re: spark plugs
« Reply #3 on: 15 September 2007, 17:49:19 »
Just buy another two

I now use NGK 2 electrode jobbies because mine runs on gas
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Markjay

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Re: spark plugs
« Reply #4 on: 15 September 2007, 17:49:45 »
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Markjay

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Re: spark plugs
« Reply #5 on: 15 September 2007, 18:12:25 »
Bosch makes the spark plugs for GM, so it does not matter if you buy them branded as Bosch or as GM/Vauxhall. In fact, the Vauxhall /GM branded plugs have the Bosch P/N stamped on the metal base. The Vauxhall/GM branded plugs are slightly cheaper than the Bosch ones, but only by a Pound or so.

The original plugs for the 2.5/3.0L V6 were twin-electrode, later V6 engines came with the quad-electrode plugs. The quad-electrode plugs can be retro-fitted to older cars than came originally with the twin-electrode, but the performance gains are very small if at all.

So your 'Bosch Super-4' will be fine, and as said you need to buy two more. Incidentally, the correct Bosch model for the Omega B V6 is designated '520'.

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Wayne

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Re: spark plugs
« Reply #6 on: 15 September 2007, 18:35:51 »
oh i see,  my spark plugs are here, i chose them after looking at the Halfords in-store charts to se which ones go with my car

so i bought these as it said, they are 510 plugs
http://links.pictures.aol.com/pic/3ef0oaUbKSq3-PpTFcjsAFz4XNPejMnGVYnZ_l.jpg

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Markie

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Re: spark plugs
« Reply #7 on: 15 September 2007, 19:01:57 »
1 plug for every cylinder, v6 meaning you need 6. Best returning them and get someone with a vx trade card to get you gm ones - you will get all 6 with change from your initial outlay  ;)
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Wayne

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Re: spark plugs
« Reply #8 on: 15 September 2007, 19:11:37 »
no problem Markie, i will just purchase 2 more, i aint got me receipt! i binned it! what a idiot i am!


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TheBoy

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Re: spark plugs
« Reply #9 on: 15 September 2007, 19:40:42 »
Quote
no problem Markie, i will just purchase 2 more, i aint got me receipt! i binned it! what a idiot i am!


Keep the receipt, it helps when you sell the car - its part of its service history :y
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Markjay

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Re: spark plugs
« Reply #10 on: 15 September 2007, 21:28:00 »
Quote
...The quad-electrode plugs can be retro-fitted to older cars than came originally with the twin-electrode, but the performance gains are very small if at all....

Correction: the quad-electrode spark plugs are meant to increase the service interval from 40k/4y to 80k/8y, so this is not performance related, but personally I would change them every 40k/4y anyway (which is what I did on mine).




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TheBoy

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Re: spark plugs
« Reply #11 on: 15 September 2007, 21:31:37 »
Quote
Quote
...The quad-electrode plugs can be retro-fitted to older cars than came originally with the twin-electrode, but the performance gains are very small if at all....

Correction: the quad-electrode spark plugs are meant to increase the service interval from 40k/4y to 80k/8y, so this is not performance related, but personally I would change them every 40k/4y anyway (which is what I did on mine).


I would still change at 20k ;)
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Andy B

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Re: spark plugs
« Reply #12 on: 15 September 2007, 22:03:10 »
Quote
.....
mines a 1998 S Reg CDX 2.5 V6 Estate

i just bought 4 x "Bosch Plus4" spark plugs and want to fit em myself, ha ha
 ......

The clue is in the engine lay out .... V6 tells you that you have 6 cylinders in a V formation!  ;)
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Markjay

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Re: spark plugs
« Reply #13 on: 15 September 2007, 23:02:13 »
This is what you need according to the Bosch catalogue:



You can also use either Bosch P/N FGR8KQE0 or P/N FLR8LDCU.

These codes are stamped on the side of the plug. Can you check and see what is stamped on the plugs you got from Halfords?





« Last Edit: 15 September 2007, 23:06:09 by markjay »
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Martin_1962

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Re: spark plugs
« Reply #14 on: 16 September 2007, 11:55:00 »
Quote
This is what you need according to the Bosch catalogue:



You can also use either Bosch P/N FGR8KQE0 or P/N FLR8LDCU.

These codes are stamped on the side of the plug. Can you check and see what is stamped on the plugs you got from Halfords?



THere are 2 missing 8-)

Mine were totally knackered at 90,000 don't know if original or not, but it brought up EMS errors!

Seems fine on twin electrode NGKs
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