Wonderful!

[st2b]

After tracking the vac leak and getting it idleing good, and now I have coolant pouring from my block. I give up, I'm tired of putting all this time into it just to get nowhere. My luck has always been bad with Supras, for some reason. I made sure it was coming from the block and not a hose or something.

So I call the mechanic at Minike and they look at it. The guy says I have a BHG and I need a new intake manifold (Mine is mysteriously cracked?)

I LOVE MY SUPRA :love: :sarcasm:

 

[Kckazdude]

How does a cracked intake = leaking coolant?
I would more suspect an expansion plug has let go. A head gasket is very unlikely to spill coolant outside of the block.

 

[ms07s]

Which side is it on? Expansion plus are a possible culprit (they do suck). Have you seen a crack in the block? I wouldn't beleive it till I saw it. Though massive coolant loss will lead to bhg....and worse.

 

[st2b]

I'm tired of trying to diagnose problems and end up getting nowhere anyway.
It went from car not starting, to
Car running like shit, to
Leaks and funny

I'm done

 

[cuel]

The intake is cracked because you didn't clean all the old gasket off. Old cast aluminum is pretty brittle, so when you tightened the bolts with little pieces of hardened gasket left in there, they created high spots that you were trying to bend the intake around. Ask me how I know... Don't worry, its a mistake that you (hopefully) only make once.

And yeah, I'd check the freeze plugs as well. I've only ever seen one h.g. leak outside the block.

 

[ms07s]

I have to know....How bad does a BHG have to be to leak coolant outside of the motor? :aigo:

 

[Kckazdude]

It would no longer be so much a blown gasket as no gasket.

 

[cuel]

I honestly don't know why it did it. Must have been a flaw in the gasket, as that was the only place it was leaking. 4 cyl. Dodge that died and wouldn't start. Turned out it was shooting water right on the distributor.

 

[ms07s]

Sounds like a Neon....I know I worked at a dodge dealership...Neons were horrible from day one.

 

[Kckazdude]

...Neons were horrible from day one.

No they werent! I made lots of money on the first gen oil leaks. Those were great little cars for me. Of course Chrysler redesigned the head gasket and ruined all of my fun.

 

[cuel]

89 Dodge Dakota, 4 cyl. 5 speed. The one with the distributor mounted low on the side of the block.

There's always the 2.7l intrepids....

 

[gtsfirefighter]

After tracking the vac leak and getting it idleing good, and now I have coolant pouring from my block. I give up, I'm tired of putting all this time into it just to get nowhere. My luck has always been bad with Supras, for some reason. I made sure it was coming from the block and not a hose or something.

So I call the mechanic at Minike and they look at it. The guy says I have a BHG and I need a new intake manifold (Mine is mysteriously cracked?)

I LOVE MY SUPRA :love: :sarcasm:

Bye :wavey:

 

[Poodles]

you're forgetting there is a small passage for coolant to go through in the intake manifold flange, more than likely that's the spot it's leaking from because the manifold is cracked there...

 

[BlackDynamite]

freeze plugs are fun!....has it started to get cold where you live, like RECENTLY? that might be a sign of a freeze plug being popped out, if it's seriously popped out then check your radiator, if there is no water then pour water in there and see if it pours out on the right side...thats what happened to mine....my whole plug was gone...

 

[Poodles]

they'll rot from the inside out, it's caused by not taking care of your cooling system...

 

[Kckazdude]

you're forgetting there is a small passage for coolant to go through in the intake manifold flange, more than likely that's the spot it's leaking from because the manifold is cracked there...

What is this passage for? You're right, I dont recall this passage. I know there is coolant at the TB but I cant place it in the manifold flange.

 

[Poodles]

it's there, trust me on this one...

there is a small copper washer in the gasket that likes to stick really well, and if you don't scrape it off well enough, you crack the manifold at that spot...

 

[AJ'S 88NA]

What is this passage for? You're right, I dont recall this passage. I know there is coolant at the TB but I cant place it in the manifold flange.

I think it's the return line from the CSI back to the head, and it will leak if the manifold isn't tightened from the inside to the outside 50% of the time.

 

[iwannadie]

it's there, trust me on this one...

there is a small copper washer in the gasket that likes to stick really well, and if you don't scrape it off well enough, you crack the manifold at that spot...

I know the spot your talking about, it does exist and seems like a good spot to leak from.

 

[st2b]

The leak is coming from a hose somewhere thats cracked. He did a compression test that made him assume I had a bhg near cyl #3. He can tell my intake is cracked because is a loud suction noise.

And after inspecting the crack, I can see where the previous owner tried to seal it up, and it progressively got bigger. Also the harness clip for my TPS is pretty much completely gone.