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Old 03-13-2010, 01:58 AM   #1
chinesedawn
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Exclamation Help...My spark plugs are in the oil !!!

My car runs good but eat lots of gas and don't have the power it suppose have after 2nd gear

one of my friends (who has a same year supra) driven my car today and he said his supra has much more pull than mine, 7300 feet altitude could affect some power output but should not that much

I checked my air filter and spark plugs(# 1, 2 and 6) , air filter is pretty dirty but the worst parts is my spark plugs!
Here is the picture, god, oil is full around the spark plugs......

Anybody know why? Any good ideas? Do I have to replace all the spark plugs?( I wish not, I don't want move the intake again....)
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Old 03-13-2010, 02:35 AM   #2
907mge
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It is either one of the valve cover gaskets or one of the four plugs on top of the head. I found when I removed my head that only 5 of the 6 cylinders were firing. The one not firing had the most oil in the plug hole.
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Old 03-13-2010, 02:35 AM   #3
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valve cover gasket. lots of good posts on this. give it a search.
in the mean time read this
http://www.toyota-supra.info/forums/...ark-plugs.html
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Old 03-13-2010, 04:44 AM   #4
chinesedawn
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Thanks very much!
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Old 05-24-2011, 01:14 PM   #5
interested!
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Smile oil on spark plugs

Quote:
Originally Posted by chinesedawn View Post
My car runs good but eat lots of gas and don't have the power it suppose have after 2nd gear

one of my friends (who has a same year supra) driven my car today and he said his supra has much more pull than mine, 7300 feet altitude could affect some power output but should not that much

I checked my air filter and spark plugs(# 1, 2 and 6) , air filter is pretty dirty but the worst parts is my spark plugs!
Here is the picture, god, oil is full around the spark plugs......

Anybody know why? Any good ideas? Do I have to replace all the spark plugs?( I wish not, I don't want move the intake again....)
Hi!
Your oily plugs are due to leaking oil gallery (14mm hex drive ) plugs , mine did this too! the rubber o-ring under the plugs had carbonised and cracked causing the slow leak by pressure/gravity into the adjoining plug hole.They are VERY TIGHT - take care when trying to remove -I used a 1/2 inch drive power bar and a good quality 14mm hex drive and short extension- could have done with some help to hold the extension straight - -you will need some new o-rings to cure the leaks , also a good idea to change the cam cover gaskets, I also changed the clamping screws for 6mm (10mm hex drive ) bolts to get a better clamp-up - no leaks now!
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Old 10-03-2011, 05:48 PM   #6
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clamping screws? Im confused at that part.
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Old 10-03-2011, 10:25 PM   #7
interested!
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Smile oil on spark plugs

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Originally Posted by icey756 View Post
clamping screws? Im confused at that part.
Hi! The clamping screws are the screws holding the cam covers to the cylinder head, I changed these screwdriver type screws for hex head bolts,still using the original rubber gaskets and cupped washers, this gives a better clamping pressure to stop the cam cover gaskets from leaking, also much easier to tighten when everything is back in position .Hope this cleared up any confusion !
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