Blown Head Gasket Symptoms!

dcrusupra · 01-28-2006, 03:04 AM

I have the problem with the temp gauge, but luckily no problems. While im driving it shoots back and forth. Its either cold or overheating or where it should be. Most of the time it says its really hot. But its still good and driveable. So its just a malfunction with the temp gauge. Not much of a nuisance so i dont worry about it. My gas gauge is like this too. I dont pay attention to the needle but when that little orange light comes on, its definitely time to get gas. Goodluck and hope its not the BHG.

Dejvid1785 · 01-28-2006, 04:54 AM

Can anybody tell me how to test that to see if it really is the HG, is there an easy way to test it out?

TONY! · 01-28-2006, 05:21 AM

Quote:

Originally Posted by Dejvid1785

Can anybody tell me how to test that to see if it really is the HG, is there an easy way to test it out?

From
http://www.toyota-supra.info/forums/...27&postcount=3

Quote:

Originally Posted by TONY!

...In this leaking...do you see that your overflow is full after driving when it gets hot?
Do you lose coolant from that area? A very cheap way to see if you are losing coolant from that area is to put a container (soda bottle) after the overflow dump tube. If the overflow dump tube spits out coolant in the bottle...well, that would indicate that combustion gasses are forcing the coolant out of the system. That would mean you have a BHG in that case.
A cheap test. I learned that trick from Duane (upgradedsupra) so he gets merit for that idea....

Also, the guy that put that Cygnus site up, has some awesome write ups!
http://www.cygnusx1.net/supra/techtips.html

And within that, there is a good write up on BHG's.
http://www.cygnusx1.net/supra/techtip/bhgfaq.html

Dejvid1785 · 01-29-2006, 12:35 AM

Thanx for the help guys, i will find out tomorrow what the deal is. I have a whole day ahead of me. I will let yall know how it turned out.

Dejvid1785 · 02-04-2006, 12:52 AM

Its a blown head gasket!!! So i get to tear it all apart, my first time doing it, if anyone has any pointers or any kind of advice i would appreciate it.

stumpjumper · 02-05-2006, 03:30 AM

There are a lot of posts on this as this is a common problem. You MUST have the head milled and make sure the block surface is extra clean from past gasket material. Check for warpage and cracks on the block surface as well as the head. Overlooking this could cause another BHG. You will be replacing more than just the head gasket, i.e. the EGR gaskets. Buy a gasket kit. Keep track of the bolts, and take notice what connectors go where. Have patience. Good luck

Dejvid1785 · 02-07-2006, 02:54 AM

Thanx for the help! The only thing i need to know is where to order some ARP studs and bolts, it might be a stupid question, but its better to ask than to be sorry!

toyosup · 04-07-2006, 02:03 PM

Quote:

Originally Posted by Dejvid1785

Its a blown head gasket!!! So i get to tear it all apart, my first time doing it, if anyone has any pointers or any kind of advice i would appreciate it.

make shure you mark the valve spacers were each one goes...they are diferent thiknes, and belongs to specific cilinder...i got my messtup once, and loose all the power

marc · 06-28-2006, 03:31 AM

ok well my car doesnt shoot anything out of the tube overflow end. it shot antifreeze out of the radiator car(when it was cold) and out of the tube end when it over heated. i replaced all coolants and everything. hasnt overheated since. still think its a bhg?

marc · 06-28-2006, 08:19 PM

i didnt mean when it was cold..i meant wen it was closed antifreeze was shooting out.

01-28-2006, 03:04 AM	#1
dcrusupra 500whp yet? Join Date: Aug 2005 Location: Plantation, Fl. Posts: 1,052	I have the problem with the temp gauge, but luckily no problems. While im driving it shoots back and forth. Its either cold or overheating or where it should be. Most of the time it says its really hot. But its still good and driveable. So its just a malfunction with the temp gauge. Not much of a nuisance so i dont worry about it. My gas gauge is like this too. I dont pay attention to the needle but when that little orange light comes on, its definitely time to get gas. Goodluck and hope its not the BHG. __________________ New Rebuild My CarDomain

01-28-2006, 04:54 AM	#2
Dejvid1785 3" Exhaust Join Date: Aug 2005 Posts: 193	Can anybody tell me how to test that to see if it really is the HG, is there an easy way to test it out? __________________ 88 Targa: Exhaust, Headers, Intake

01-29-2006, 12:35 AM	#4
Dejvid1785 3" Exhaust Join Date: Aug 2005 Posts: 193	Thanx for the help guys, i will find out tomorrow what the deal is. I have a whole day ahead of me. I will let yall know how it turned out. __________________ 88 Targa: Exhaust, Headers, Intake

02-04-2006, 12:52 AM	#5
Dejvid1785 3" Exhaust Join Date: Aug 2005 Posts: 193	Its a blown head gasket!!! So i get to tear it all apart, my first time doing it, if anyone has any pointers or any kind of advice i would appreciate it. __________________ 88 Targa: Exhaust, Headers, Intake

02-07-2006, 02:54 AM	#7
Dejvid1785 3" Exhaust Join Date: Aug 2005 Posts: 193	Thanx for the help! The only thing i need to know is where to order some ARP studs and bolts, it might be a stupid question, but its better to ask than to be sorry! __________________ 88 Targa: Exhaust, Headers, Intake

02-05-2006, 03:30 AM	#6
stumpjumper 3" Exhaust Join Date: Dec 2005 Posts: 74	There are a lot of posts on this as this is a common problem. You MUST have the head milled and make sure the block surface is extra clean from past gasket material. Check for warpage and cracks on the block surface as well as the head. Overlooking this could cause another BHG. You will be replacing more than just the head gasket, i.e. the EGR gaskets. Buy a gasket kit. Keep track of the bolts, and take notice what connectors go where. Have patience. Good luck

06-28-2006, 03:31 AM	#9
marc 12psi boost Join Date: Jun 2006 Location: salem mass Posts: 329	ok well my car doesnt shoot anything out of the tube overflow end. it shot antifreeze out of the radiator car(when it was cold) and out of the tube end when it over heated. i replaced all coolants and everything. hasnt overheated since. still think its a bhg?

06-28-2006, 08:19 PM	#10
marc 12psi boost Join Date: Jun 2006 Location: salem mass Posts: 329	i didnt mean when it was cold..i meant wen it was closed antifreeze was shooting out.

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