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 05-25-2006, 02:35 AM   #1
h8z2luze
12psi boost
 
h8z2luze's Avatar
 
Join Date: May 2006
Location: Nor*Cal
Posts: 338
h8z2luze is on a distinguished road
Default Blown head gasket?

Hello, I have a 89 Supra N/T. I got it from an auction. The guy said there was nothing wrong with it but there is. It misses really bad. When I pulled the plug wires off the valley where the plugs screw into the head was full of oil. I have never worked on one of there straight sixes before. What does this mean? I hear it could be a blown head gasket or a craked head. How mush is a rebuld kit for these? Thanks in advance.
h8z2luze is offline   Reply With Quote
Old 05-25-2006, 02:44 AM   #2
dcrusupra
500whp yet?
 
dcrusupra's Avatar
 
Join Date: Aug 2005
Location: Plantation, Fl.
Posts: 1,052
dcrusupra is on a distinguished road
Default

Rebuild kit is much money. But its probably just the valve cover gaskets. Replace those and then go from there.
__________________
New Rebuild
My CarDomain
dcrusupra is offline   Reply With Quote
Old 05-25-2006, 03:29 AM   #3
h8z2luze
12psi boost
 
h8z2luze's Avatar
 
Join Date: May 2006
Location: Nor*Cal
Posts: 338
h8z2luze is on a distinguished road
Default

Ok I never thought about that. I ordered some and the grommets. Do I need anything else? Is there a diffrent process with these cars than others?
h8z2luze is offline   Reply With Quote
Old 05-25-2006, 12:43 PM   #4
rnoswal
Lexus & 550's
 
rnoswal's Avatar
 
Join Date: Apr 2005
Location: Bossier City LA
Posts: 556
rnoswal is on a distinguished road
Default

Other than taking the stuff off that is on top of the valve covers, you have to get the oil out of the sparkplug holes before you put new ones in. Otherwise a bunch of stuff goes into the cylinder when you pull the plug. A new set of plug wires and plugs and the valve cover gaskets are all you should really need.


Russ
rnoswal is offline   Reply With Quote
Old 05-25-2006, 03:55 PM   #5
h8z2luze
12psi boost
 
h8z2luze's Avatar
 
Join Date: May 2006
Location: Nor*Cal
Posts: 338
h8z2luze is on a distinguished road
Default

I figured that but I havent figured out how I am going to do that yet. lol. What do you suggest?
h8z2luze is offline   Reply With Quote
Old 05-25-2006, 07:30 PM   #6
ddmcse
500whp yet?
 
ddmcse's Avatar
 
Join Date: Jun 2005
Location: CT U.S.A.
Posts: 966
ddmcse is on a distinguished road
Default

the screws holding down the valve covers suck big time . look into replacing them when you do the job
__________________
300+ RW HP Dyno run,
jdm,mod turbo,3"exh,electfan,greddyboost
Blown HeadGasket info
My Supra KiXGaS
ddmcse is offline   Reply With Quote
Old 05-26-2006, 02:18 AM   #7
h8z2luze
12psi boost
 
h8z2luze's Avatar
 
Join Date: May 2006
Location: Nor*Cal
Posts: 338
h8z2luze is on a distinguished road
Default

How much is the stock horsepower on these things? How much are the bolts?
h8z2luze is offline   Reply With Quote
Old 05-26-2006, 02:26 AM   #8
j3pz
500whp yet?
 
Join Date: Nov 2005
Location: Mechanicsville, MD, US of A, 20659
Posts: 1,060
j3pz is on a distinguished road
Default

hp for a n/a is around 200 i believe. also you may want to retorque the head while you got the valve covers off. mk3 supras are notorious for blown head gaskets. retourqe to about 76 lb/sq in. also dont let the oil get low, these supras get mad when that happens.
__________________
88 N/A w/ 5spd - stock - not running, bhg
87 turbo/targa w/ 5spd- fidanza light weight flywheel, new oem slave cylinder, apexi air filter, no ac and no heat
j3pz is offline   Reply With Quote
Old 05-26-2006, 05:19 AM   #9
h8z2luze
12psi boost
 
h8z2luze's Avatar
 
Join Date: May 2006
Location: Nor*Cal
Posts: 338
h8z2luze is on a distinguished road
Default

I think I might have a worse problem. I pulled the dipstick and It had water in the oil. To me this means either blown head gasket or cracked head. I hear these supras are notorious for cracking heads. What do you guys think?
h8z2luze is offline   Reply With Quote
Old 05-26-2006, 06:34 AM   #10
f00g00
12psi boost
 
Join Date: Aug 2005
Location: Kuwait
Posts: 292
f00g00 is on a distinguished road
Default head gasket

Probably just a head gasket but you won't know till it comes off and gets checked. A good machine shop can check the head for warpage and cracks.
The biggest thing is that it wasn't you driving the car when this happened
so you don't know the situation when the damage occured and how long it was driven like that.
One of my previous engines lost the number 6 piston when the gasket blew
which meant used engine for me.
f00g00 is offline   Reply With Quote
Reply


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
Blown Head Gasket Symptoms! Dejvid1785 MKIII FAQ 76 04-24-2011 07:59 PM
Blown Head Gasket Snake Oil unkymurch Non-Generation Specific Questions 21 08-06-2010 02:11 AM
1989 Supra blown head gasket rayk5799 Non-Generation Specific Questions 6 05-18-2009 10:51 AM
Update: Blown Head Gasket Snake Oil - 8 months later unkymurch Non-Generation Specific Questions 3 12-17-2008 09:35 PM


All times are GMT. The time now is 03:42 PM.


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