scared of spark plugs

[kbekl]

any chance you can get a picture ?

pop the sleeve off (if it will come off) and then turn the spark plugs by hand if they turn clockwise and tighten up then they need to be torqued up if they dont tighten up then their is a problem

it means that the ceramic is cracked and will need replacing as you might be getting a weak spark or a arc when running

 

[Sam.slc]

Plugs have to be tight?

Mike something funny is going on because all the plugs should not be loose, they do not "push fit" plug the leads back in, check the bolts at the base of the plug, tighten if required and start the car

 

[Myros]

if the plug ceramic is turning,

but the hexagonal body is not, it's shot to hell. I had some trouble like this a few years ago. Either the plug was faulty and gave up the ghost when fitted, or it was overtorqued when put in and that broke it. Drive gingerly to a good motor factors or parts shop, get a set of plugs, and change the lot.
Your tightening torque will be no more than 25Nm. I suggest you get a good torque wrench as well and use 20Nm as a guide. Or hand tight and an eighth to quarter turn (45-90 degrees).
I gave up on Bosch plugs as a result of this trouble and now only use Beru. NGK are fine as well, but they didn't have any for my motor at the time, and I liked the Beru multi-electrode platinums from GSF. They last a lot longer, so should give you less trouble like this.

 

[Dec]

The whole plug should be solid from the top to the bottom, the very tip at the top screws off, if it is loose you can tighten it by hand.

If you can turn the ceramic part and the shinny nut part doesn’t move then there is something wrong with the plug but I doubt that is the case.

It seems that the threaded part at the bottom in picture is loose and needs tightening. Try removing the plug, it will take about 15 turns, counter-clockwise, to remove it.

Dec

 

[Dec]

Mike, you will need something like this to do the job properly.
Thats just an example as i'm not sure what size socket that you need.

Dec

 

[kbekl]

Mike, you will need something like this to do the job properly.
Thats just an example as i'm not sure what size socket that you need.

Dec

i bought a full set of the draper professional one and they didnt fit my car at the time due to the circumfrence lol

 

[mike102]

Dec, myros, sam, kbeki.
Thankyou all for the ongoing advice.
I will look at all the suggestions youv'e all made and see if i get a result.
I will get back to you all hopefully with a clear outcome.
Thanks again
Mike.
ps. kbeki i also live in Cornwall,where are you at?
I live in Polperro. Are you anywhere near?

 

[kbekl]

Not too far in st columb major just outside newquay if you are ever close by you will have to pop in for a cuppa


Also we are having a get together in may so check out the events section

 

[mike102]

Cheers kbekl
Yeh il'l check out events, could do with a day out.
May be see you their.
Anyway, bye for now.
Mike.

 

[kbekl]

hows this going hope you sorted it if not then could come over to give a hand if need be

 

[mike102]

Hi Kbekl.
Thanks for getting back, Yeh you were right , I think i manhandled the HT lead and like you said the porcelain was spinning, checked all others and they are solid, called at Halfords to-day bought a Plug -Key , was able to replace plug with spare same brand plug. Everything ok now.
But thanks for offer of nipping over, Where i live, nobody round here has a Mercedes, so along with this helpful forum, if i get into problems it gives me peace of mind i could possibly get your help.
Thanks again.
Mike.

 

[Cnics]

Glad all appears well now, it might not hurt to replace the rest of them though, at least you know where you are then.

 

[mike102]

Good point Cnics.
Can you reccommend a quality set, long life span. But with a fair price tag.
Thanks.
Mike.

 

[mike102]

Just Realised.
Iv'e been writing in the wrong forum.
Sorry, I Be A Newbie.
See you in the Technical.
Mike.