Spark Plug Gap?

B

bg

Just installed new NGK V-Power spark plugs, gapped at .040. The old ones
were Champions, 3 were gapped at .050 and 1 at .055. They in the car when I
bought it used ~23,000 miles ago. Just curious on what the effects of these
out of spec plugs had on gas mileage, power, strain on the motor, etc?

TIA...bgin
 
x-no-archive: yes
Just installed new NGK V-Power spark plugs, gapped at .040. The old ones
were Champions, 3 were gapped at .050 and 1 at .055. They in the car when I
bought it used ~23,000 miles ago. Just curious on what the effects of these
out of spec plugs had on gas mileage, power, strain on the motor, etc?

TIA...bgin

Anything will be an improvement over Champion plugs. I wouldn't put a
Champion plug in my lawn mower. Forty years ago, Champion was a great
spark plug. Not so these days, especially in a Subaru.

The critical question on the Champions is the heat range. How did the
old plugs look? Any signs of detonation or other "problems"? The gap
issue shouldn't cause any permanent damage to you engine.
 
bg said:
Just installed new NGK V-Power spark plugs, gapped at .040. The old ones
were Champions, 3 were gapped at .050 and 1 at .055. They in the car when I
bought it used ~23,000 miles ago. Just curious on what the effects of these
out of spec plugs had on gas mileage, power, strain on the motor, etc?

TIA...bgin

what kind of car???
 
Subbies Two said:
Anything will be an improvement over Champion plugs. I wouldn't put a
Champion plug in my lawn mower. Forty years ago, Champion was a great
spark plug. Not so these days, especially in a Subaru.

The critical question on the Champions is the heat range. How did the
old plugs look? Any signs of detonation or other "problems"? The gap
issue shouldn't cause any permanent damage to you engine.

I friend helped me do the job and he said the old plugs still looked very
good, just re-gap and re-install them.
 
bg said:
I friend helped me do the job and he said the old plugs still looked very
good, just re-gap and re-install them.

I dunno. If you read the NGK info, they claim that standard electrode
plugs (V-power is only a slight variation) work better when new due
to "sharp" edges making for a more reliable spark. I think it's
different with platinum/iridium/etc plugs, because there's no
oxidation on the platinum/iridium tips. Standard NGKs are so cheap
that if you're going to take them out, you might as well replace them.
 
x-no-archive: yes
I friend helped me do the job and he said the old plugs still looked very
good, just re-gap and re-install them.

Why? Four new plugs are cheap. If I am going to go spend the time and
effort to remove plugs, I always replace them.
 
Subbies Two said:
x-no-archive: yes


Why? Four new plugs are cheap. If I am going to go spend the time and
effort to remove plugs, I always replace them.

Opps...sorry for the the misunderstanding, its was my friends opinion to
just re-gap and reinstall the old plugs...I didn't want that...so we did
install the 4 new plugs.

bgin
 

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