What can go wrong if i try to replace spark plugs

BlogWobbles
BlogWobbles

what can go wrong if i try to replace spark plugs

i dont want to break anything serious or have one snap off in the head.

whereismyname
whereismyname

@BlogWobbles
Find what your OEM plugs are and use exactly the same thing. Go to harbor freight and get a $15 torque wrench if you're paranoid. You are more likely to break a screw putting a plastic engine cover back on than breaking the plug.

Harmless_Venom
Harmless_Venom

@whereismyname
Ok thanks, I got the OEM ones for like $2 each, they say hand tight then 2/3 turn.

I just dont wanna have the plugs snap coming out or something is all.

happy_sad
happy_sad

Tfw op fucks up and ends up with a misfire and his four banger starts shaking like a truck
Oh wait, that was me

takes2long
takes2long

@happy_sad
I have a V6, so 33% more likely to fuck up then you :(

Techpill
Techpill

Provided neither you nor the previous owner is a complete retard - nothing.

StonedTime
StonedTime

@Harmless_Venom
2/3 turn

Just do it up tight enough that it will never come undone but not so tight that you can feel everything start to go spongy because your ratchet is no longer rotating because the plug is screwing in - it's rotating because everything is flexing.

If you can't feel the difference between a thread turning and metal flexing you should never touch another spanner in your life.

CouchChiller
CouchChiller

Read instrctins, op.

CodeBuns
CodeBuns

@StonedTime
I can, I've just never done it so admittedly im a bit cautious about it

5mileys
5mileys

@CodeBuns
Just remember aluminium isn't as strong as steel so you'll get less leeway but there's still a huge torque range between "tight enough to not come undone" and "fucken fucked mate big time"

idontknow
idontknow

@5mileys
Ok.

Thank you man

lostmypassword
lostmypassword

I always make sure to relax my arms and breath out while I'm torquing a bolt.
As apposed to tensing up and grunting and reefing on the thing.

Methshot
Methshot

be just like OP
lose job
dont have to worry about getting to work in the morning
start to wrench on car because free time
disassemble shit
sometimes have to call someone to fix mess i made and cant put back myself
still end up learning stuff
realise how much workshops scam

everyone shud do this

TechHater
TechHater

Please let the car cool down if it was at operating temp so you dont dethread the heads.

BinaryMan
BinaryMan

@BlogWobbles
make sure the block is cold or you run the risk of stripping the aluminum threads.

Supergrass
Supergrass

Use vacuum hose connected to sparkplug to start the thread then once its for sure in you can pull off the hose and the spark plug should stay in the threads.

The reason for this is because you will easily be able to tell when its going in properly since it will screw in with no resistance. If you meet resistance just back it out and start over.

If you try and use a socket to start the thread and you twist one turn too tight past resistance you couldn't feel, you just stripped your blocks threads and you are more or less extremely fucked

Snarelure
Snarelure

@Supergrass
some shit about a vacuum hose
Just use a plug socket and extension bar and starts it off with your hands.

Garbage Can Lid
Garbage Can Lid

@happy_sad
How'd your fuck up

MPmaster
MPmaster

@BlogWobbles

make sure the engine is cold and if the plug seems seized, soak it in WD40 and let it sit for a hour and try again

when i was a tech i replaced probably thousands of sparkplugs and i can remember 3 that fucked up. Fords with the 2 piece sparkplugs that always break, 80s Caravan with rusty plugs where one snapped in half but i saved it, and one of my Toyotas where some dipfuck way overtorqued a plug and i had to soak it in WD40 to eventually get it

also remember new plugs always start threading by hand, if you feel resistance take it out and try again. if not thats where you make your own threads and it becomes fun

Spamalot
Spamalot

@Garbage Can Lid
be me
car won't start
friend says it's probably spark plugs
we go buy some nice ones
put them in
misfire or some shit, car sounds and shakes like a truck
oooh buddy
redo the spark plugs with cheap ones (friend said maybe we bought too good of spark plugs, idk)
swap em
runs fine

SomethingNew
SomethingNew

@Spamalot
ya you cant go outside what the manufacturer says. my car takes iridium (shoot me) but if yours takes the cheaper ones (like platinum) then the iridium wouldn't work

massdebater
massdebater

@Spamalot
@SomethingNew
Beyond Iridium and platinum and regular shit - you lads know spark plugs have specs on them right?
length of insulation
heat range
gap

You can't just get any old plug and throw it in.... well actually you can but you shouldn't! How hard is it to open up the parts index book in the spark plug isle?

likme
likme

@massdebater
Well yea...I was an idiot back then an he was kind of taking charge cause I thought he knew what he was doing. More than I did, at least.
Tfw this was 8 years ago
Time
Flies

Deadlyinx
Deadlyinx

@massdebater
How hard is it to open up the parts index book in the spark plug isle?
My car won't be in there.
No listing for batteries, wiper blades, tires, air filters, oil filters, anything.
Why would they list my spark plug?

Evilember
Evilember

@Methshot
im dong this right now anbon. will u help me when it won't go back together?

happy_sad
happy_sad

@Deadlyinx
google it nerd

Inmate
Inmate

@happy_sad
Won't show up.
Hand built cars from 30 years ago.
Even the dealer doesn't know.

PackManBrainlure
PackManBrainlure

@BlogWobbles
Don't let that thread from the other day scare you user. Spark plugs are easy

TurtleCat
TurtleCat

@Inmate
Is it a Caterham or something?

StonedTime
StonedTime

@Inmate
alright mr special snowflake go ahead and tell us what your special snowflake car is.
I know you're just waiting for someone to ask...

Fuzzy_Logic
Fuzzy_Logic

@Inmate
So the engine in your car wasn't available in any other car either? Wtf do you drive

Stupidasole
Stupidasole

@Fuzzy_Logic
Could be a TVR.

Garbage Can Lid
Garbage Can Lid

@Stupidasole
Lawd I hope not. In that case replace with whatever you pulled out.

girlDog
girlDog

@massdebater
How hard is it to open up the parts index book in the spark plug isle?

ill do you one better! I just look in my owners manual. it provides the NGK part number.

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