Toyspeed.org.nz Message Board

by **eritate** » Wed Apr 19, 2006 10:46 pm

Hey guys,

I have a 1989 Mr2 GT. Engine has done 175,XXX kms.

Problem is Overheating and Loosing Water

Symptoms-:
Does Not blow Smoke, Does not blow steam, There is no oil in the water, There is no water in the oil, It Uses water, There is exhaust gases in the water and bubbles coming out of the radiator when car is running...

When i had it on the road it boosted fine but ive taken it off due to this problem. Its been off the road for 1 week now.

O Rings on turbo are worn. Not sure of play in the turbo.

Did a compression test on it and the results are-

Cylinder1: 150
Cylinder2: 155
Cylinder3: 160
Cylinder4: 150

Am about to do a 'forced pressure' test on the cylinder. By forcing 100PSI through each cylinder and seeing what comes out of the radiator cap bit and if bubbles come out.

I believe its a Blown Headgasket or Cracked block. I get told by many people different explainations but most have been Headgasket or Cracked block.

Help ? Please

Cheers

Mike

by **Mr Revhead** » Wed Apr 19, 2006 10:49 pm

cracked block isnt common on those...... not stock anyway

my $$ on the gasket

by **eritate** » Wed Apr 19, 2006 11:03 pm

Maybe its just leaking at the moment... it hasnt gone yet but its about to go?

by **Lloyd** » Wed Apr 19, 2006 11:17 pm

I'd be voting head gasket from the sounds of it. Not a lot of things that really lead to bubbles in the radiator. Yay for MR2s

by **Alex B** » Thu Apr 20, 2006 2:55 am

HRT wrote: Yay for MR2s

You just like the things that come with them eh

by **Crucible** » Thu Apr 20, 2006 9:04 pm

eritate wrote: There is exhaust gases in the water and bubbles coming out of the radiator when car is running...

How do you know the bubbles are exhaust gases? If it is loosing coolant it may have airlocks in the system. They are not the easiest systems to bleed I might add. If there is ex gases then yes the headgasket is leaking. A leakdown test will prove this and so will a Tk chemical test.

tnt

by **mr2--mad** » Tue Aug 15, 2006 6:18 pm

Do you have a "service tube" ? bleed the system with a long tube

OMG so shiny! · by **Dell'Orto** » Tue Aug 15, 2006 7:10 pm

Problem was the motor was well and truly rooted :lol:

all sussed now.

no grip · by **Akane** » Tue Aug 15, 2006 11:12 pm

eritate wrote:Help ? Please

And what do you want us to do? Wave uncle Akane's magic wand over it?

Change the head gasket, and do the waterpump.

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