Oily spark plug!

[The Kirmanator]

Just been checking the plugs on my valver when I noticed one of them was heavily oiled up! Im talking oil dripping off it! All the rest were in great shape....the manual says this could be because of worn piston rings or valve guides which sounds expensive. Is it wise to get it into the garage asap or is this a warning that something may give up the go further down the line??

Also, on NGK V plugs (2 prongs, 1 either side of the core) do you have to measure the .80mm gap either side?

Ta, Paul.

 

[scotty16v]

i think its normal on valvers, certainly is on mine.

just whack the plugs in, theyll work fine

 

[DeanRSi]

could be a rocker cover gasket, or the rocker cover might just need tightening mate as they can get loose

 

[scotty16v]

rocker cover would leak oil outwards towards the engine bay?

 

[James Clio 16v]

If you havent split any oil down the plug wells when filling it up, it is likely to be the rocker cover gasket. I had this on mine, fitted a new one, problem solved.

James

 

[Chad]

read this http://www.dsmgrrrl.com/FAQs/leakdown.htmhttp://www.dsmgrrrl.com/FAQs/leakdown.htm

should be able to pinpoint the problem

 

[James Clio 16v]

Before you do anything else get the garage to fit a new rocker cover gasket, or do it yourself, its not difficult. The gasket is about £8.

This is a very common problem on the 16v. I would be very surprised if it is anything more serious than this.

James

 

[VoRN-182]

Quote: Originally posted by scotty16v on 06 October 2003

rocker cover would leak oil outwards towards the engine bay?



Yeah but the 16v is twin cam so the middle where the plugs go has gasket around there

 

[The Kirmanator]

Cheers for the advice chaps...Ill give it a go this weekend.

 

[iPap]

You dont need to gap the plugs if you but the right ones for your engine!!!

 

[scotty16v]

oh right cheers vorn

 

[Ol’ Tarby]

hold on, hav i got the wrong end of the stick here or hav others? wen u say there was oil on it, u mean on the electrode part that would be normally inside the engine or the porcalean bit on the outside? if its on the elctrode part then the rocker cover gasket is not the cause

 

[BenR]

The plug wells are deep, when you pull the plugs out, oil sitting in the wells just gets on the cylinder side of the plug.....

 

[16V_Matt]

could just be down to clumsy toping up like me

 

[Paul16V]

The plug wont be oily when its in the engine. just when u unscrew it and pull it up it gets the oil on it. the gaskets leak. get a new one and some of that gasket seat, clean up the rocker cover and the head on the engine and get all the oil out with a rag. refit and it will be fine. i started gettin a bit of trouble with missfiring cos of oil. that cured it tho.

 

[The Kirmanator]

Yes, I mean on the electrode part of the plug! And it wasnt just the odd spot, Ive also noticeed the oil pressure is poo but just thought that was down to a dodgy sender unit! Help!

Piston rings or valve guides?

 

[Chad]

Quote: Originally posted by paul1178 on 10 October 2003


Yes, I mean on the electrode part of the plug! And it wasnt just the odd spot, Ive also noticeed the oil pressure is poo but just thought that was down to a dodgy sender unit! Help!

Piston rings or valve guides?

as per my earlier post you need to get a leak down test done to see where you losing pressure



http://www.dsmgrrrl.com/FAQs/leakdown.htmhttp://www.dsmgrrrl.com/FAQs/leakdown.htm