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Old 04-11-2004, 03:30 AM   #1
Seeing StaRS
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Exclamation Oil leaking from spark plug wells normal?!

Hey guys I just tuned up my RS yesterday and swapped out the Crampion plugs and oem wires for a nice set of NGK V-powers and Magnecore wires. I'm very pleased with the resulting improvement in power delivery: its far more smoother and rev-able.

However, and this is a big however....

When I was removing the spark plug boots from the motor I noticed oil sitting in the top "lip" of the spark plug well in both cylinders 3 & 1 on the passenger side. In fact, a small trickle of oil ran down the side of the motor from the valve cover hole of cylinder 3 when I pulled the rubber spark plug boot off.

I did not have anything like this in the driver side plug wells. I'm concerned I may have a bad seal or gasket on the passenger side portion of my motor. I haven't *knock on wood* had any issues resulting from this and I don't / haven't had any oil leaking from the area. So any takers on explaining to me whats going on?

I'm freaked out by this

Thanks
Joe
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Old 04-11-2004, 12:13 PM   #2
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anybody?
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Old 04-11-2004, 12:52 PM   #3
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its kinda normal, its the seal between the valve cover and the tube for the plugs and wires...

if its alittle dont worry about it yet(although oil can eat through the rubber of the plug wires)

if u should decide to change these seals do the valve cover gasket aswell(and check the 'half moons' on the back of the head(might aswell fix everything in that area once)
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Old 04-11-2004, 09:18 PM   #4
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YaZahX thanks for information, I appreciate it

Joe
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Old 04-11-2004, 10:33 PM   #5
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I agree with yazahX as well...mine was doing this and had the valve cover gaskets replaced under warranty.....oddly enough, I got them replaced at 59,400 miles.....JUST before the warranty expired....
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Old 04-12-2004, 11:46 AM   #6
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Were you modded when you had them replaced? Not that I think it would do anything but I have an intake and exhaust and don't want to find out they will deny me a claim.
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Old 04-12-2004, 05:31 PM   #7
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intake/exhaust when I got them done....as well as diff plugs...I had the iridiums at the time....the dealership said nothing, except that my car is loud
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Old 04-12-2004, 09:19 PM   #8
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Glad to hear they didn't trouble you

Joe
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Old 04-13-2004, 03:51 AM   #9
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the spark plug bonnets need to be replaced about every 30k with the valve cover gaskets, they get dry and lose their form due to fuel/oil contamination
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Old 04-15-2004, 12:48 AM   #10
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What exactly classifies as the bonnet? The rubber boots that plug into the valve cover? Or, is this some sort of seal that sits around the hole for the spark plugs?

Joe
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Old 04-15-2004, 01:30 AM   #11
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Quote:
Originally posted by Seeing StaRS
What exactly classifies as the bonnet? The rubber boots that plug into the valve cover? Or, is this some sort of seal that sits around the hole for the spark plugs?

Joe
there's a seal around the top of each spark plug tube between the tube and valve cover itself, these have to be replaced about every 30K(honda's used to have a seal of the same idea but different shape) or they dry out and lose shape/leak.

Jeremy
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Old 04-15-2004, 02:22 AM   #12
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Jeremy I appreciate your input. So is this a task your average idiot such as myself could handle replacing or a more advanced chore? Thinking about it, I'm still under my 60k warranty so I'm assuming this could be covered. Unless that is its considered a wear and tear item being that it has to be replaced every 30k?

Joe
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Old 04-15-2004, 09:22 AM   #13
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It easy. 5 bolt heads on the valve cover, and likely any intake that you have. Stuff a towel down under the valve cover and over the cross member so you don't spill oil all over when you take the cover off. If you let the car sit overnight before you start there will be minimal oil. I would still use the towel because oil on the exhaust can easly be prevented, as well as spills on the driveway/garage floor ect.

The boots will be staring you in the face when the valve cover is removed. Pull them off, and replace with the new.

cheeRS,

Greg
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Old 04-20-2004, 06:16 PM   #14
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it's an extremely easy job.

just be REALLLLLLLLLLLY careful when you are wrenching those bolts back into the valve (rocker) cover. I stripped one, and had to spend a hard few days learning how I would go about replacing my cams. Much more work than I should have had.

So just be careful! If you are torquing them back on, well, good luck. I think 5-6, maybe 7 lbs is all it took. Really just pushing rubber seals together. I was in idiot, and followed numbers that were obviously (also obliviously) bad.

Only benefit to doing the extra work was that I now know I can install my own cams!
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Old 04-21-2004, 01:08 AM   #15
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Thanks for the continuing input - any other takers?

Joe
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Old 04-21-2004, 02:44 AM   #16
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If this is any indication on how easy it is, I had my 11 year old son do the passenger side valve cover gasket and spark plug tube seals and I did the drivers side. Of course I watched as he did it but if he can figure out how to do it then it's pretty simple.
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Old 04-21-2004, 10:09 AM   #17
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Quote:
Originally posted by spshultz
If this is any indication on how easy it is, I had my 11 year old son do the passenger side valve cover gasket and spark plug tube seals and I did the drivers side. Of course I watched as he did it but if he can figure out how to do it then it's pretty simple.
NICE
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Old 04-21-2004, 02:52 PM   #18
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Quote:
Originally posted by HndaTch627
there's a seal around the top of each spark plug tube between the tube and valve cover itself, these have to be replaced about every 30K(honda's used to have a seal of the same idea but different shape) or they dry out and lose shape/leak.

Jeremy
I'm not saying you're wrong, as I honestly have no idea, but my dealer never said that those seals needed to be changed. I even asked if there is any maintainance I should have performed while my engine was in pieces.

I asked at 40K miles and again at 65k.
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Old 04-21-2004, 02:57 PM   #19
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if they were smart, they would have replaced them just to prevent a comeback



just my $.02


$10 in parts is worth more then another trip to the dealer
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Old 04-21-2004, 03:05 PM   #20
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Quote:
Originally posted by HndaTch627
if they were smart, they would have replaced them just to prevent a comeback



just my $.02


$10 in parts is worth more then another trip to the dealer

You do realize I am speaking of Lynwood Subaru right?
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Old 04-21-2004, 06:16 PM   #21
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I've had oil in that gap for a while; never got down through the plug boots, though. Another something to do in a few weeks, I guess. Is there a part number for the bonnetts?

I'll have to peek under there; I never considered if there was enough room to remove the valve covers.
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Old 04-21-2004, 10:50 PM   #22
Seeing StaRS
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hey good question... what is the part number?

Joe
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Old 04-22-2004, 12:29 AM   #23
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Quote:
Originally posted by HndaTch627
if they were smart, they would have replaced them just to prevent a comeback



just my $.02


$10 in parts is worth more then another trip to the dealer
where i work, when we do the sevice if we notice any oil on the plug we tell the customer it should be done... many times we are looked at to be sneaky for this, but we do tell them its leaking
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Old 06-28-2004, 03:49 PM   #24
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I just posted about somthing similar today. Take a peek at the pic and see if we're on the same page. So what are the parts that I need to do this. Is there a seal kit for the upper oiling area or do I need to go in and point to a picture at my Subaru dealer?



Also...what IS the correct torque for the valve covers.



TIA, Chris
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Old 06-28-2004, 04:04 PM   #25
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I don't remember the exact torque specs (very low 10~20ft/lbs?) for the valve cover bolts, but I do remember that they need to be replaced with new ones. I just had the same thing happen to me a while ago. Had oil leakage in 2 of 4 spark plug tubes. I replaced spark plugs, spark plug tube grommets, valve cover seal, and valve cover bolts. Was inexpensive and easy to do.


Mick
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