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HELP!!! Oil in spark plug cavity!!!
#1

Went to put new plugs in, a bunch of oil is down in each plug cavity.



Cam cover reseal yes?



Can I pull all four plugs out, then crank engine over a bunch, put in new plugs, start her up and let it burn the oil left?



Or do I need to wait until I've replaced the gasket first?



Recommendations?



How hard to replace the cam cover gasket? It looks like I have to take the fuel line off the fuel rail to get the cover off, sound right?
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#2

There's a round seal in each spark plug hole in the valve cover. Yes, you have to disconnect the fuel lines from the fuel rail to get to three of the bolts that hold the valve cover in place. You will not be successful in burning off the oil, it will simply keep leaking until the seals are replaced. While you have the valve cover off, do a Variocam inspection - pads and camshaft gear teeth. There's info in the DIY section on all of this. Not a difficult job at all, just one that requires some care to not break things.
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#3

Might I add that you should be extremely careful while removing your fuel rail. While removing mine recently, my wrench slipped off the countertorque nut and I bent it slightly. It turned out that the slight bending was enough to create a thin crack in my fuel rail, which had to be replaced. If you have any more questions about the job that you are about to undertake, let me know, as I have just completed it for the first time. Best of luck! <img src="/forum/images/smilies/968/smile.gif" class="smilie" alt="" />
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#4

Just to clearify, the fuel rail doesn't need to be removed itself, just the two lines running over the valve cover to the fuel rail.
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#5

I'm picking up the parts this afternoon. I'm gonna attempt it this weekend. I'll be VERY careful taking the fuel lines off the fuel rail!



And I'll take a look at the Variocam system to make sure all is okay...praying that it is! I don't even want to think about having to buy new cams right now!
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#6

i just changed my spark plugs a few weeks ago, and the original ones had oil on them, too. i just chalked it up to bad plugs, but it sounds like i have a problem, too.

is there a post somewhere that describes how to perform the work on the cam cover reseal?? sounds intimidating.
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#7

Actually, it's not. There's an article in the DIY section that describes how to inspect the Vario Cam mechanism.



Hard part is making sure when you remove the fuel lines to the fuel rail, that you use a 19mm wrench on the fuel rail to brace it. Or what happened to Jonathan above can happen.



You also need a torque wrench with a 4mm (?) allen socket to torque the cam cover bolts.



I'll hopefully get to it tomorrow. I'll post afterwards and let everyone know how it went.



The scary part to me will be inspecting the Variocam mechanism - I DON't want to have to replace that stuff (I'm kinda low on dough!)
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#8

[quote name='rustech' date='May 12 2005, 11:29 PM']Just to clearify, the fuel rail doesn't need to be removed itself, just the two lines running over the valve cover to the fuel rail.

[right][post="4702"]<{POST_SNAPBACK}>[/post][/right][/quote]



You are exactly right, Anchorman. It is only if you crack your fuel rail that it needs to be removed. <img src="/forum/images/smilies/968/wink.gif" class="smilie" alt="" /> Ask me how I know... <img src="/forum/images/smilies/968/tongue.gif" class="smilie" alt="" />
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#9

[quote name='sasilverbullet' date='May 13 2005, 11:01 AM']1) Hard part is making sure when you remove the fuel lines to the fuel rail, that you use a 19mm wrench on the fuel rail to brace it.  Or what happened to Jonathan above can happen.



2) You also need a torque wrench with a 4mm (?) allen socket to torque the cam cover bolts.



3) The scary part to me will be inspecting the Variocam mechanism - I DON't want to have to replace that stuff (I'm kinda low on dough!)

[right][post="4710"]<{POST_SNAPBACK}>[/post][/right][/quote]



Michael is right, Brian: it is an easy job, Brian, and you can do it! With that said, let me give a few words of wisdom gained while down in the trenches. <img src="/forum/images/smilies/968/smile.gif" class="smilie" alt="" />



1) The sad part is that I was, in fact, bracing the fuel rail, when, WHAM, the wrench slipped... <img src="/forum/images/smilies/968/sad.gif" class="smilie" alt="" /> So, yes, be VERY careful, and in retrospect, I wish I would have applied PB Blaster to the nut before I attempted to turn it.



2) There are a few 4 mm allen bolts, but the 13 valve cover bolts in question are actually 5 mm. Applying the correct amount of torque (7 ft. lb. or 10 Nm) to these bolts is extremely important, as there have been many reports of their breaking under relatively small amounts of excess application of torque. It adds insult to injury when one finds out that the cost of replacement is $10.50 for the small bolts and $22.50 for the long ones. (Thankfully, I didn't have to replace these... <img src="/forum/images/smilies/968/wink.gif" class="smilie" alt="" />) Along those lines, while removing the 13 valve cover bolts, take note of the length of the bolts, for they are not interchangeable. If you forget, it certainly wouldn't be a major problem, as you could just finger the bolts in while re-installing the cover to check for the correct match of length.



3) Let's just hope that you aren't confronted by an exhaust camshaft that has 3 consecutive missing teeth... <img src="/forum/images/smilies/968/ohmy.gif" class="smilie" alt="" /> In total, I was missing 1 intake tooth and 5 exhaust teeth. It was SCARY! I am including a picture just in case you find something disturbing. It is doubtful that it would be worse than this, so you would be able to think, "Well, at least it's not as bad as Jonathan's." <img src="/forum/images/smilies/968/biggrin.gif" class="smilie" alt="" />
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#10

Need - are you still running the car, or - what steps have you taken?
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#11

[quote name='NeedPorscheSpeed' date='May 13 2005, 05:35 PM']Let's just hope that you aren't confronted by an exhaust camshaft that has 3 consecutive missing teeth... 

[right][post="4721"]<{POST_SNAPBACK}>[/post][/right][/quote]



Ouch! My sympathies.



As I have said before, Variocam inspection and colonoscopy could be used in the same context....... <img src="/forum/images/smilies/968/blink.gif" class="smilie" alt="" /> Both are necessary and the results are either elation or heavy depression. There is little middle ground. <img src="/forum/images/smilies/968/sad.gif" class="smilie" alt="" />
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#12

[quote name='Anchorman' date='May 13 2005, 07:41 PM']Need - are you still running the car, or - what steps have you taken?

[right][post="4722"]<{POST_SNAPBACK}>[/post][/right][/quote]



No way... she has been parked since early February... and I sure do miss her... <img src="/forum/images/smilies/968/sad.gif" class="smilie" alt="" /> It's really funny that you should ask, as I just came in from working on her. I basically have everything done; I would have tried to crank her, but tomorrow, I must fish out an aluminum washer that slid down the return duct and into my oil pan...



It all happened on my way home from Birmingham, AL. She had been purring along wonderfully for nearly two hours, when all of a sudden, the car began running on 3 cylinders and blowing the spark plug cap off of cylinder 1. I was happy to be able to limp home for about 35 miles. Upon inspection, I could see oil in all four spark plug wells, and prepared myself to tackle the job of replacing the spark plug seals.



Due to my being extremely busy during the month of February, I was unable to tackle the job until March. When I removed the valve cover, I was floored by those three missing teeth, and realized immediately that the job had just gone from being a simple gasket, seals, and spark plug replacement to a NIGHTMARE...

<img src="/forum/images/smilies/968/ohmy.gif" class="smilie" alt="" /> <img src="/forum/images/smilies/968/ohmy.gif" class="smilie" alt="" /> <img src="/forum/images/smilies/968/ohmy.gif" class="smilie" alt="" />



I asked around for advice, and most everyone said that re-sprocketing the camshafts was not a good idea. So, I called Sunset and their price was $683 and $660 for new camshafts. I then was able to find a used set of camshafts that only had 16,000 miles on them for $800.



Just as I was about to buy that set of camshafts, I read a post about Tom Charlesworth in Tulsa and how he had been seeing excellent results with about 40 sets of camshafts that he had rebuilt. I called Tom, and sure enough, he had not had a single problem, and the machinist who does the work for him works for American Airlines. When I asked the cost, I was stunned: $250 for both! I decided that I would give it a shot, for if it is good enough for Tom Charlesworth, who has one of the best names in the business and who is the only American to have been trained at Weissach, it was good enough for me. Tom was great to work with, and the turnaround time was remarkable. When I realized that Tom didn't even make a cent on the deal (I offered...), I was more than pleased by his customer service.



So, I went about the business of replacing the pads and chain, and reinstalling the camshafts. I also replaced my dist. cap and rotor. While tightening my fuel lines last Saturday, I noticed a small crack in the rail. I must have done that when the wrench slipped while removing them. I ordered a used one (instead of having it welded, as I dubbed it too risky). (The price for a new rail at Sunset, by the way, is $187.00.)



So, tonight I installed the "new" fuel rail (wow, my injectors were so difficult to remove that I was afraid I was going to break them!) and tied up some loose ends. I then went and worked on my heavily modified 951 (replaced the dist. cap and rotor) and by the time I was ready to drain the oil pan of the 968, it was 3:00 a.m. I decided to wait until tomorrow for that.



So, tomorrow is the day that I will turn the key... I am a little worried about the fuel rail, to be honest, as I have a bad feeling that the injectors might not have sealed perfectly. There is only one thing to do, though, and that is to cross my fingers, turn the key, and see what happens. <img src="/forum/images/smilies/968/wink.gif" class="smilie" alt="" />



Greimann,



Thanks for your sympathies. <img src="/forum/images/smilies/968/wink.gif" class="smilie" alt="" /> You are right, there is no middle ground when it comes to Variocam inspection. Unfortunately, instead of elation, depression was mine. It has been a wonderful learning experience, however, and I have enjoyed it thoroughly. Also, in the future I will be better equipped to do the job, and I will be able to help others (either online or in person). Speaking of Variocam inspection, I plan to do one on my father's 968 soon. Here's to hoping that I will emerge on the side of elation, especially since I may be buying it in a couple of weeks. <img src="/forum/images/smilies/968/smile.gif" class="smilie" alt="" />
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#13

Jonathan - I'll say a prayer that it all goes well when you crank her up!



Thanks for the long post, now at least I know if there's problems, that I'll be able to afford to fix them!
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#14

Yipee! All is good - No teeth missing, the blocks had almost no wear except for the discoloration of them.



Besides a new gasket and spark plug seals, I also put 13 new grommets for all the cam bolts.



No runs, no drips, no errors!



Johnathan - sure hope everything is going okay for you!
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#15

Just got done going for a long drive - man does that thing hum now!



Even just starting off in first gear is easier. Those 4 yr old plugs just had to go!



Bandera run time!
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#16

[quote name='sasilverbullet' date='May 14 2005, 11:49 AM']Just got done going for a long drive - man does that thing hum now!



Even just starting off in first gear is easier.  Those 4 yr old plugs just had to go!



Bandera run time!

[right][post="4744"]<{POST_SNAPBACK}>[/post][/right][/quote]



Michael, congratulations on your good news! <img src="/forum/images/smilies/968/smile.gif" class="smilie" alt="" />



I still haven't gotten to the 968 today. I have been trying to work out some issues on my heavily modified 951. So far, not so good... She just won't stay cranked...

even after being showered with gifts: a new Dist. cap and rotor button... <img src="/forum/images/smilies/968/sad.gif" class="smilie" alt="" />



Thanks for your well wishes with the 968. I hope that when I turn that key, she will fire right up... <img src="/forum/images/smilies/968/smile.gif" class="smilie" alt="" />
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#17

[quote name='sasilverbullet' date='May 14 2005, 10:07 AM']Johnathan - sure hope everything is going okay for you!

[right][post="4736"]<{POST_SNAPBACK}>[/post][/right][/quote]



Well, Michael, thanks for your well wishes, but..... I turned the key of the 968 and she fired up, but my moment of elation soon turned to depression. The engine is shaking terribly at idle, and at around 2000 rpm, loses a tremendous amount of power. This, after replacing the camshafts, pads, chain, distributor cap and rotor, plugs, and the fuel rail. <img src="/forum/images/smilies/968/sad.gif" class="smilie" alt="" /> I think my balance shaft belt may be a tooth off, but my understanding is that the balance shafts being off would not affect idle.



Also, there is a rattle emanating from beneath the valve cover. It sounds like the lifters, which would expected for a car that hasn't run in over 3 months. I'm afraid the writing may be on the wall... Variocam Tensioning Unit Failure!!! <img src="/forum/images/smilies/968/sad.gif" class="smilie" alt="" /> <img src="/forum/images/smilies/968/sad.gif" class="smilie" alt="" /> <img src="/forum/images/smilies/968/sad.gif" class="smilie" alt="" /> I may have damaged it when I compressed it in order to insert it between the camshafts... I don't know, but I plan to remove the valve cover tomorrow and inspect everything. Throw in the fact that my heavily modified 951 is refusing to stay cranked, due to some unidentified electrical problem, and you have a tremendously depressing day... I will have better days...this is my hope.
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#18

Hang in there!
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#19

[quote name='sasilverbullet' date='May 15 2005, 05:38 PM']Hang in there!

[right][post="4774"]<{POST_SNAPBACK}>[/post][/right][/quote]



Thanks, Michael! <img src="/forum/images/smilies/968/smile.gif" class="smilie" alt="" /> I am hoping that it will be slightly off in terms of timing. That would be an easy fix. I hope to take a look at it in a few minutes. I'll keep you posted.
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#20

We're all looking forward to hearing of your ultimate success, Need. We need that to be the case, both for you and to encourage the rest of us that we can deal with these untoward events. Good luck.
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