spark plug crossthreaded

[novah108gly]

is there a way to fix this and how?

[John]

Yep, you'll have to helicoil it. Might need to take the head off to do it though.

[tom reid]

You could try a thread chaser, worked for me a few times

[sri888]

how bad have u crossed threaded it :eek: u cud use a tap an re tap it........ thats if u cand find 1 the right thread :thumb:

if not its a head off job id say..... an replace head

or if you could try liqiud metal as a short term optoin;)

[John]

how bad have u crossed threaded it :eek: u cud use a tap an re tap it........ thats if u cand find 1 the right thread :thumb:

if not its a head off job id say..... an replace head

or if you could try liqiud metal as a short term optoin;)

I wouldn't put liquid metal in a plug thread, what a silly suggestion! Que spark plug exiting through the hole it makes in the bonnet when you fire it in!

[sri888]

i did suggest it by the spark plug end.

i ment around the out side

[sri888]

i didnt suggest it by the spark plug end.

i ment around the out side

[John]

i didnt suggest it by the spark plug end.

i ment around the out side

Eh, that doesn't make sense?

[sri888]

you re tap it 1st. then tighten the spark plug but not over tighten it. the use the liqiud metal around the out side off it the head an spark plug.

please note thier are alot off different liqiud metals about these days

[John]

you re tap it 1st. then tighten the spark plug but not over tighten it. the use the liqiud metal around the out side off it the head an spark plug.

please note thier are alot off different liqiud metals about these days

Hmm ok. I'd spend £20 having it helicoiled properly before wasting £15 on liquid metal. Ok for a temporary bodge i suppose. No good if you're keeping the car though.

[John]

Edit, i'm sure yates in Longton can do it on the car. You'd have to get the car to them though.

[sri888]

it was only a short term suggestoin;)

as id say id have it your way or new head my self..........

[bazil]

it was only a short term suggestoin;)

as id say id have it your way or new head my self..........

a bit extereme to replace the head, I got mine helicoiled and worked fine for 2 years untill I put the car into storage, 20 quid well spent.

[Lee]

you re tap it 1st. then tighten the spark plug but not over tighten it. the use the liqiud metal around the out side off it the head an spark plug.

please note thier are alot off different liqiud metals about these days

Then you cant get a socket on it when you need to change it again!

I would helicoil it, but you will have to take the head off, as you will most probably grate some ally into the chamber and lunch your ring (piston ring, not sheriffs badge :))

[Stuart]

air gun it in.


I had an xthreaded plug on my old 1.2 ok she chuffed a little from the hole but it still went on for years lol

[mowgli]

why not butcher an old plug, remove the head & wind it thru from the chamber side of the head, it should clean the thread up enough to get the plug back in, & with a smear of loctite, it should be ok

[Nobby]

ive done this at work a couple of times over the years manily on ka's with their ****ty offset holes, just use loads of wd40 and gently tap the plug head into the head and just work it takes time and paitence and abit of skill but all ive done have never come back as of yet,

[Mark Sparks]

You could just buy the tool http://cgi.ebay.co.uk/14mm-SPARK-PLUG-RETHREADING-KIT-TAP-REAMER-4-INSERTS_W0QQitemZ310165477043QQcmdZViewItemQQptZUK _Measuring_Tools_Levels?hash=item48374d96b3

Worked for me you have to take your time working it in and out and try to get all the swarf out but like i said it works:thumb:

[dan23]

use an old spark plug cut a slot all the way down the thread with either hacksaw or grinder with small disc
if you can get it to screw in it will clean the thread depends how bad its cross threaded

[Jon_nova1]

This is why you should put the plug in using the socket, extension bar and your fingers then tighten it up, or if your a super retard use a peice of hose, using a ratchet straight off is always asking for trouble!