Home / Toyota Supra Forums

Go Back   Toyota Supra Forums! Join the Supra forum! > Performance, Modification, and Maintenance Forums - for generation specific discussions > MKIII Supra

Reply
 
Thread Tools Display Modes
Old 06-27-2010, 12:41 AM   #1
Rahnter
Stock
 
Join Date: Feb 2008
Location: USA
Posts: 5
Rahnter is on a distinguished road
Default Oil on spark plugs

My car has been misfiring at random times during the last week or so. Decided to take a look today, and found a small pool of oil around spark plugs 1/2 & 5/6, pugs 3/4 were unaffected . I cleaned the area as best I could and pulled the plugs, and the were covered with motor oil (may leaked down since it was hard to clean it all). I didn't see any leaks from the valve covers (had the gaskets replaced about 2-3 years ago). I'm going to take another look tomorrow, but what do you guys think? Any help is appreciated
Rahnter is offline   Reply With Quote
Old 06-27-2010, 01:04 AM   #2
mirage83
12psi boost
 
Join Date: Feb 2007
Location: Georgia
Posts: 359
mirage83 is on a distinguished road
Default

That's your #3 gasket leaking in the plug galley. Easy to replace with the OEM gasket, or you can use generic washers/gaskets of a size I can't recall right this moment . Just pull the bolts which hold that gasket on and replace, should resolve the problem of oil getting into the plug galley and shorting your plug wires.
mirage83 is offline   Reply With Quote
Old 06-27-2010, 02:23 AM   #3
mirage83
12psi boost
 
Join Date: Feb 2007
Location: Georgia
Posts: 359
mirage83 is on a distinguished road
Default

BTW, the four bolts you have to pull are 14mm allen head bolts. The gaskets I mentioned earlier (if you don't want to go with a new #3 cylinder head gasket) are oil drain plug gaskets. Take one of the bolts with you to a auto parts place and find a suitable size.
mirage83 is offline   Reply With Quote
Old 06-27-2010, 02:40 AM   #4
907mge
20psi boost
 
907mge's Avatar
 
Join Date: Dec 2009
Location: Harrisburg
Posts: 759
907mge is on a distinguished road
Default

You don't need to replace the 4 plugs. On mine I did away with the spark plug valley cover and just reinstalled the plugs with RTV and it has worked very well for me. I also cleaned up the treads well. I left the cover out so I could keep track of what is in the valleys since the coolant plugs can leak also.
907mge is offline   Reply With Quote
Old 06-27-2010, 04:13 AM   #5
mirage83
12psi boost
 
Join Date: Feb 2007
Location: Georgia
Posts: 359
mirage83 is on a distinguished road
Default

Yeah, didn't realize that I had left a couple of words out as the bolts definately don't have to be replaced. Was thinking faster than I was typing.
mirage83 is offline   Reply With Quote
Old 06-27-2010, 09:37 AM   #6
batmmannn
12psi boost
 
batmmannn's Avatar
 
Join Date: May 2010
Location: West Virginia
Posts: 320
batmmannn is on a distinguished road
Default Those plugs

Be careful putting them back in I also used RTV and it worked great I have no oil leaks. Don't strip them going back in and not too tight. By the way guys my red Supra is still going strong!
__________________
1987 N/A 7MGE Left Hand Drive MK3 Red 5 Speed and Black Auto Supras
My Next project is the Batmobile!

batmmannn is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Help...My spark plugs are in the oil !!! chinesedawn MKIII Supra 6 10-03-2011 09:25 PM
Spark Plugs and Water cgreiner MKIII Supra 1 07-21-2009 03:49 AM
Spark Plugs (1G-GE vs 7M-GE) makemedie Non-Generation Specific Questions 5 10-26-2008 05:19 AM
NGK Spark Plugs 91 Supra MKIII Supra 5 08-07-2007 03:52 AM
1986.5 with blown Head Gasket - Removing Spark Plugs unkymurch Non-Generation Specific Questions 10 03-02-2007 06:48 PM


All times are GMT. The time now is 06:10 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.

1986



1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87