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 01-20-2006, 04:22 AM   #1
kewlcoconut
3" Exhaust
 
Join Date: Sep 2005
Location: Vancouver, BC Canada
Posts: 157
kewlcoconut is on a distinguished road
Default boiling overflow tank

this was pretty weird tonight when i came home from school. i pulled up into my driveway and parked and shut the car off. when i got out, i heard weird noises, and i noticed some steam coming out of the hood.....I was like "omg what now!"

i popped the hood and the radiator overflow tank was boiling over like crazy. i lost a lot of fluid from the radiator. it was just pouring out and spitting all over the front of the radiator. I dont know what happened. this was such a spur of the moment thing.
my temp sensor hasnt worked for a few weeks but the car hasnt had any issues. Im getting my temp sensor replaced tomorrow, along with a bunch of tests run.

it is odd though, because this has never ever happened. and i dont know what could have caused this. I noticed though that my heater wasnt really working, it usually heats up way before i am home. could it have gotten clogged or something? and pushed the excess coolant back? i dont know, im just thinking of random stuff.........some input would be nice. thanks guys
kewlcoconut is offline   Reply With Quote
Old 01-20-2006, 04:34 AM   #2
mrnickleye
1000whp postwhore
 
mrnickleye's Avatar
 
Join Date: Jun 2005
Location: Mojave Desert, Calif.
Posts: 1,705
mrnickleye is on a distinguished road
Default

I've been there, done that. It boils over like that when the coolant level in the engine (not the bottle) is too low to keep the engine properly cooled.

When you shut the engine off, the coolant then touches very hot spots inside the engine and boils rapidly. This creates a sudden large amount of pressure, thus pushing coolant into the bottle.

Mine turned out to be a BHG. Very tiny (I found it when I looked the gasket over closely) hole at #6 cyl was allowing combustion gasses into the cooling system, and pressurizing it so much that I was losing coolant into, and out of, the bottle, while I drove.

The gauge read normal while I was driving. Then, as I slowed down for traffic, the gauge shot up a bit, then went back down as I was able to speed back up. This happens because the hotter coolant touched the sending unit and made the gauge jump up.

In the morning, fill your radiator up, and bottle 1/2 way. If it starts and seems to run ok, take it by a shop After school to have a 'block test' performed to see if you have a BHG.
__________________
Had a Red 1989 N/A. Automatic. Sports Pkg. w/wing.
TEMS, and some nice MODS. Sold to a friend 10/08/08.
mrnickleye is offline   Reply With Quote
Old 01-20-2006, 06:12 AM   #3
kewlcoconut
3" Exhaust
 
Join Date: Sep 2005
Location: Vancouver, BC Canada
Posts: 157
kewlcoconut is on a distinguished road
Default

well tomorrow i have a day off. i already set up an appointment at a shop the other day to get some stuff fixed. now im going to get them to do a block test. i am in head gasket denial. but i think coolant is leaking into the engine.....because i have noticed lately an excess of exhaust, like the coolant is being burned off......ugh.......i know a lot of people here have had new HG's put in....

so i ask this, what is the best metal head gasket to get? the hks one?
and also what cost am I looking at if i take it somewhere to get it repaired, because I honestly have no idea how to do it.
kewlcoconut is offline   Reply With Quote
Old 01-21-2006, 01:32 AM   #4
mrnickleye
1000whp postwhore
 
mrnickleye's Avatar
 
Join Date: Jun 2005
Location: Mojave Desert, Calif.
Posts: 1,705
mrnickleye is on a distinguished road
Default

To use a metal gasket, you must have the block surfaced, which cost a whole bunch more. They need a really smooth surface to seal.

For a street car, I would have the head done, valve job, milled slightly, and not try to use a metal gasket. ARP studs or bolts, torque to 72lb ft instead of 58.

Try a search, because I know there were several threads on this last summer.
__________________
Had a Red 1989 N/A. Automatic. Sports Pkg. w/wing.
TEMS, and some nice MODS. Sold to a friend 10/08/08.
mrnickleye is offline   Reply With Quote
Old 01-21-2006, 03:00 AM   #5
stumpjumper
3" Exhaust
 
Join Date: Dec 2005
Posts: 74
stumpjumper is on a distinguished road
Default

DO IT YOURSELF!! Much cheaper, good experience. Total: $500 at most w/out going metal HG. If you don't plan on running massive amounts of boost a MHG is not necessary. Just toyota HG and ARP bolts or studs, torqued correctly. Want to take it to a shop? At least $1200 plus parts.

Good luck!!
stumpjumper is offline   Reply With Quote
Old 01-21-2006, 10:34 AM   #6
kewlcoconut
3" Exhaust
 
Join Date: Sep 2005
Location: Vancouver, BC Canada
Posts: 157
kewlcoconut is on a distinguished road
Default

damn....well the shop couldnt do a test...i dunno why. but i ordered one from napa, so im gonna test it tomorrow......hopefully everythinng goes in my favour.

i would love to do it myself, but im such a newbie. i only know the basic things. when it gets down to the tough things like taking out the block and everything, i have no idea what to do.....i would be scared to mess it up....but $1200 is damn expensive for the HG.....i guess its all the labour.
kewlcoconut is offline   Reply With Quote
Old 01-22-2006, 04:14 AM   #7
stumpjumper
3" Exhaust
 
Join Date: Dec 2005
Posts: 74
stumpjumper is on a distinguished road
Default

Ya labor charges will get you. It is a lot of work but if you just keep track of everything and have some patience it will be a good experience. You'll be suprised how much you will learn by doing this HG. Find a friend who has interest and knowledge and get at it. I did my hg when I had no experience but I got it done, and now the car runs flawless.
stumpjumper is offline   Reply With Quote
Old 01-22-2006, 10:04 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

if you do it, the more experience you get, the better you get, the better the car runs, the happier you are. its all a timeless fairytale. sorry drunk messege, its my bday lol and it was hard to type lol
__________________
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 01-22-2006, 11:17 AM   #9
kewlcoconut
3" Exhaust
 
Join Date: Sep 2005
Location: Vancouver, BC Canada
Posts: 157
kewlcoconut is on a distinguished road
Default

well, i will look into doing the HG myself, or with a friend. thanks for the input. and happy bday j3pz
kewlcoconut is offline   Reply With Quote
Old 01-22-2006, 07:30 PM   #10
j3pz
500whp yet?
 
Join Date: Nov 2005
Location: Mechanicsville, MD, US of A, 20659
Posts: 1,060
j3pz is on a distinguished road
Default

thanks and thanks to all those that thought it
__________________
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
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
Slow Bubbles Into The Resevoir Tank Drag0na5h MKIII Supra 2 03-18-2008 05:37 PM
Overflow Tank D_Train MKIII Supra 1 03-21-2007 02:52 AM
gas tank leak burton51m MKIII Supra 14 11-24-2006 06:16 PM
WAter not going back to raditor from recovery tank Help Jeff_5_7 MKIII Supra 12 09-15-2006 03:49 AM
WAter not going back to raditor from recovery tank Help Jeff_5_7 MKIII Supra 0 09-07-2006 02:05 AM


All times are GMT. The time now is 09:20 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