Found oil in the spark plug housing?!?!! - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Jaxonalden · 10-18-2008, 10:27 PM

OK, I think we need some help here from forum members in the know of how these engines are put together. Question; Are they initially put together without the O rings and replacement parts now come with O rings or did someone mess with his engine and not install them or is it possible that all the O rings fell off?

There are some very talented people on this forum and I hope they chime in, quick!

Jaxonalden · 10-18-2008, 10:49 PM

OK 986FortyEight, you being nervous is making me nervous so I did some research and will post a new thread with what I found. If you go to You Tube and type in the search for Porsche Boxster S Engine Rebuild a group of 5-10 minute rebuild clips (about 15) will come up and if you select #10 they are putting the head together and it shows the spark plug tubes going in with the O rings installed.

I hope for your sake the O rings were not installed but I highly doubt it. BTW, this series initially fixed the problem of a crack in one of the spark plug seats by getting it welded and machined.

Rick V · 10-19-2008, 05:48 AM

Do your best to find where the o-rings went, make sure they are nor running around in the valve train somewhere. That wouldn't be a good thing. Ok Yes you have to have the o-rings there. Yes they are installed from the factory, if yours are missing they were omitted for what reason, who knows. Ok oil issue done with. Find a scanner, find out what cylinder is missing, pull that coil and plug and look for the obvious. (cracked or closed up plug, cracked coil, not hooked up coil) If everything looks good to the visual inspection, change the coil out with one from a diff. cylinder. If your miss jumps to that hole you have a bad coil, if the miss stays put you have a bad plug, if the miss goes away you did something wrong when you replaced the plugs the first time.
Now, go get-um. Don't freak out and flatbed the car to the shop, you can fix this yourself.
Advice from a Porsche mechanic (me) just relax, think your way through the issue, and break this down to one step at a time.

986FortyEight · 10-19-2008, 06:18 AM

Quote:

Originally Posted by Jaxonalden

OK 986FortyEight, you being nervous is making me nervous so I did some research and will post a new thread with what I found. If you go to You Tube and type in the search for Porsche Boxster S Engine Rebuild a group of 5-10 minute rebuild clips (about 15) will come up and if you select #10 they are putting the head together and it shows the spark plug tubes going in with the O rings installed.

I hope for your sake the O rings were not installed but I highly doubt it. BTW, this series initially fixed the problem of a crack in one of the spark plug seats by getting it welded and machined.

OK. The video clarifies in my mind what part you were talking about greatly!
I did not touch these tubes and to be honest I did not even see them. So either they are there and I am blind or these do not exist on an 98 2.5L 986.
I will go back and remove the coilpack and check-it out in a minute.

I think that I will take the car to the local Autozone to get a reading of the error code and see what I have on my hands. I am anxious about driving a car with the CEL on and a sputtering engine but this is my daily driver and I need a fix or a game plan ASAP! Anyone thinks that I can damage the engine driving it 1 mile or so?

Jaxonalden · 10-19-2008, 07:41 AM

Driving it will only result in a pop and fart, you'll be alright. Call Autozone first to see if they can hook up and read your codes.

About your tubes...Wheew...you pulled the coil packs and thought the tubes we are talking about came with them, no they didn't. They are part of the ignition system, they transfer the energy to the plug from the coil pack. The tubes are still installed, you need to remove the spark plugs and then you can remove the tubes. I don't know if you can just grab them or need a special tool to insert, expand and pull the tubes out.

I feel so much better now!

986FortyEight · 10-19-2008, 08:03 AM

Jaxonalden, I appreciate your concern!

I just got back from autozone and had the reading done in a matter of seconds.
Error P0306 which is a misfire on cylinder 6. I now need to figure out which cylinder that is and investigate the cause.

I am still wondering about that oil and I will investigate once I get the cylinder 6 issue solved.

Thanks for the help and I will continue to post progress / issues here.

Mike

986FortyEight · 10-19-2008, 06:26 PM

Alright, I removed the spark plug in cylinder 6 and found out that the brand new bosh plug was in fact cracked! No wonder It wasn't firing!

Now I still wonder why there was oil in the spark plug housing for cylinder 1 and 2!

Michael

Paul · 10-19-2008, 06:40 PM

Unless something is leaking above those 2 plugs, the oil is coming from the spark plug tube seals. Any chance the old plugs were loose and were allowing the tube to leak?

986FortyEight · 10-20-2008, 10:10 PM

Quote:

Originally Posted by Paul

Unless something is leaking above those 2 plugs, the oil is coming from the spark plug tube seals. Any chance the old plugs were loose and were allowing the tube to leak?

Until this service (120K) which I am performing myself, the car has been at the Dallas Porsche dealer (Park-Place) from day one for all services. Only in the past year, since I have officially owned the car, have I started to take it to an indie for some repairs (engine mount, 1 axle, water pump...)

So I bet the plugs date back from the last scheduled service ( I need to check the records).

One of my colleagues who is particularly mechanically inclined told me today that it is quite normal for plugs to develop leaks over time as the metal they are made of expand while the ceramic doesn't. To be honest, his perceived authority on the matter seemed good enough to convince me...
All plugs are now new and I will most certainly check them regularly to see if the condition develops quickly or not...

thank you for all your help Guys!

Jaxonalden · 10-19-2008, 07:13 PM

Quote:

Originally Posted by 986FortyEight

Alright, I removed the spark plug in cylinder 6 and found out that the brand new bosh plug was in fact cracked! No wonder It wasn't firing!

Now I still wonder why there was oil in the spark plug housing for cylinder 1 and 2!

Michael

When was the last time those plugs were replaced? What ever that time frame is, is the amount of time it took to leak oil into that tube. I'm sure it was a very slow leak.