Need Help! Coolant in valve cover covering spark plugs????
#1
Rookie
Thread Starter
Join Date: Apr 2008
Location: Missouri
Posts: 79
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
I have a stock 95 SC300 and I just drove it yesterday and noticed it was misfiring a little so I popped the hood and heard a strange noise. I removed the timing cover and noticed the first plug wire had come off. I then shined a flash light in the plug hole to see the first section filled up with oil and coolant. So today I removed the intake and valve covers and noticed a few things
-The valve covers were only on hand tight.
- all the spark plug sections were full of oil and coolant
So what could be the cause of this happening, I noticed that there were 3 large allen head screws in between each plug and was wondering if there was a gasket in them that could be bad.
any advice is awesome, I dont think this is a big deal because I noticed it quickly, but havent came across this in my lifetime, hah.
- I did plan on replacing the plugs and VC gaskets. So let me know if youd replace anything else while Im in there.
-The valve covers were only on hand tight.
- all the spark plug sections were full of oil and coolant
So what could be the cause of this happening, I noticed that there were 3 large allen head screws in between each plug and was wondering if there was a gasket in them that could be bad.
any advice is awesome, I dont think this is a big deal because I noticed it quickly, but havent came across this in my lifetime, hah.
- I did plan on replacing the plugs and VC gaskets. So let me know if youd replace anything else while Im in there.
#2
Lexus Champion
iTrader: (2)
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
usually misfiring can happed when the coolant hose on the back of the head breaks and pours coolant on plugs 5 & 6.
this has happened to me and to a couple of other members.
the hose frays after years and also due to had trans and motor mounts.
check the hose and replace your VC gaskets.
this has happened to me and to a couple of other members.
the hose frays after years and also due to had trans and motor mounts.
check the hose and replace your VC gaskets.
#6
Rookie
Thread Starter
Join Date: Apr 2008
Location: Missouri
Posts: 79
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
thanks, I was actually thinking my heater core hose was looking rough. It must have leaked so bad it overflowed into the other cylinders. I will get the VC gasket set and heater hose.
is there anything else that may be leaking coolant badly into the spark plug grooves?
is there anything else that may be leaking coolant badly into the spark plug grooves?
Trending Topics
Thread
Thread Starter
Forum
Replies
Last Post
931UZFE
Performance & Maintenance
13
06-20-17 06:33 AM
xdubber
LS - 1st and 2nd Gen (1990-2000)
2
01-14-10 02:53 PM