What will happen if i used the wrong spark plug?

[Ivan323]

Hi guys, i brought the wrong NGK Iridium spark plug model for my Honda civic EK SiR B-series model.

 

Will i damage the engine or cause any problems to it?

After i had changed, i kinda smell some sort of buring smell inside my car.

I'm quite worried is it the cause of wrong model of spark plug i brought?

 

I brought ZFR6FIX-11 instead of BKR6E-N-11..

[Elfenstar]

The Z series has the electrode extended further in. If your engine has enough clearances, then its better than your standard plug.

 

I'm no guru on the clearances for the B16 but it should be fine.

 

As for the burning smell... did you spill any engine oil on top of the engine???

[Kelpie]

1. If your car doesn't like the spark plug, it will miss fire sooner or later.

 

2. Engine check light will be lighted up. The car will machiam astma like that at stationery.

 

Regards,

[Ivan323]

But how can i check the clearances for my engine?

[Aimnfire]

compare the length with the original

if its the same length then its ok

most probably either the firing is better or worse than the original

 

if its longer

firing might be too close to piston head

that may result piston head go kaput

 

i know cause i did use wrong spark plug length for my bike last time

[Elfenstar]

If you havent hit the piston yet then it's fine.

[Nothingtodo]

how u know its the wrong spark plug? if it is wrong, u should not hv continue to install it. But since it is already installed, and the engine do not misfire and yr engine do not under perform, there should not be much worry. However, like wat Kelpie says, the problem may come later when the plug is into is secondary use.

 

don't tink the smell has anything to do with the spark plug though.

 

Y not check the clearance and lenght from the manufacturer? They are the expert anyhow.

[Highwaycode]

Several years back....at autobacc servicing package was given the wrong spark plugs and on N-S highway one of the cylinder valve burned and kaput! Mechanic diagnosed spark plugs installed were meant for carburettor engine not for fuel-injection engine.

[Yeobh]

If it protrudes too far into the combustion chamber in an interference engine, the physical damage caused to the piston crown can be very serious.

If the plug used is of a higher heat range, then you will experince starting difficulties and higher fuel compsumption.

If the plug is lower in heat range, the plug will misfire and engine may just cut out during high speed driving. overtime the plug electrote may melt casuing the the ceramic to crack - the end result will be a big task to remove the damage plug.

[Elfenstar]

The mech BS'ed you.

 

It is impossible to "burn a valve" due to the sparkplug.

 

You may be able to semi-diagnose it from looking at the sparkplug head but thats as far as the relationship goes between the two.

[Elfenstar]

Everything for the 2 plugs he mentioned are identical bar the electrode materials and the one installed has a projected ground that goes deeper in.

 

Fortunately, it isnt deep enough to touch the crown. I reckon (taking the make, model and engine of the car into consideration) that if the sparky went in too deep, we wouldnt be answering this question.

[Yeobh]

It is great to be a mechanics in Spore, do whatever you like and if anything goes wrong the owners will absorb all the expenses. No need to have blanket insurance coverage to take care of mis diagnosis or damage caused by replacement parts. That why hardly any self-taught mechanics want to go for certifications and up grading courses even when the skill development fund is willing to foot 70% of the bill.

[Ls430]

Is there such thing as using the wrong spark plug will result in NO sparks

[Elfenstar]

Thats a double blow to the consumers too. It gives the dealers a reason to not uphold their warranty if we want to use an outside workshop to service our cars.

[Trex101]

Yes if you use a 1.5mm gap plugs on a 0.8mm gap spec engine.

[Ivan323]

[reply]If you havent hit the piston yet then it's fine.[/repl

 

May i know how does it feel when ur car mis-fire?

And is there any signal when we hit the piston ring?

 

Everything is going smoothly, just the burnt smell coming out after i removed the spark cable really make me worry!!

[Ivan323]

how u know its the wrong spark plug? if it is wrong, u should not hv continue to install it. But since it is already installed, and the engine do not misfire and yr engine do not under perform, there should not be much worry. However, like wat Kelpie says, the problem may come later when the plug is into is secondary use.

 

don't tink the smell has anything to do with the spark plug though.

 

Y not check the clearance and lenght from the manufacturer? They are the expert anyhow.

 

Becos i went home to check online after i had installed in my car n finally found the NGK japanese website tat still have the model/made for each car.

I found out tat the spark plug i had brought is meant for K-series rather for B-series...

[Ivan323]

I tink i better go n buy a new set spark plug 2ml rather than having any major problems in future..