While Head is Off

**Disco Muppet** · 16th May 2013, 07:55 PM

Originally Posted by justinc

My advice to everyone is get a coolant level warning system and / or head temp warning system in place. Do it NOW.

JC

That and run the correct coolant

**robbotd5** · 16th May 2013, 08:33 PM

And what coolant shall that's be muppet?
Regards
Robbo

**Disco Muppet** · 16th May 2013, 08:51 PM

Personally, I use Nulon red in a 50/50 mix

My comment was more in reference to JC mentioning that it had no water in it, and evidence of no inhibitor, stuff like that.
If it meets the specs then use it, but make sure it's got something there!

**justinc** · 16th May 2013, 09:08 PM

Originally Posted by robbotd5

And what coolant shall that's be muppet?
Regards
Robbo

* Shudder*

Thank goodness Muppet is too young to remember THAT debate...

Best leave that sleeping dog alone, eh Robbo

JC

**Disco Muppet** · 16th May 2013, 09:13 PM

Originally Posted by justinc

* Shudder*

Thank goodness Muppet is too young to remember THAT debate...

Best leave that sleeping dog alone, eh Robbo

JC

I've seen some threads, was certainly....uhhh......interesting?

**justinc** · 16th May 2013, 09:18 PM

Interesting allright

. An OAT vs Glycol Based stuff 'discussion' is guaranteed to get the blood pressure up...

JC

**beanie_205** · 16th May 2013, 11:13 PM

Given that the coolant expansion tank is slightly pressurised with a healthy gasket, how obvious is it when the head gasket goes? Is there a big jump in pressure or is it more obvious in terms of coolant dissapearing?

**Disco Muppet** · 17th May 2013, 06:40 AM

Originally Posted by beanie_205

Given that the coolant expansion tank is slightly pressurised with a healthy gasket, how obvious is it when the head gasket goes? Is there a big jump in pressure or is it more obvious in terms of coolant dissapearing?

From my understanding (which is fairly limited) there's a significant increase in pressure, much more noticeable particularly a fair while after shut down.

**disco2_dan** · 17th May 2013, 12:10 PM

Originally Posted by djam1

all it really needed was a head job

That's all we all really need isn't it?

**OffTrack** · 17th May 2013, 12:40 PM

Originally Posted by Disco Muppet

From my understanding (which is fairly limited) there's a significant increase in pressure, much more noticeable particularly a fair while after shut down.

Definitely noticeable but I reckon it's easy to miss the signs of early onset unless you have an immediate major failure.

When the head gasket on mine went the pressurising is pretty apparent. The top hose started to look "pumped up" and it was difficult to compress with your fingers. The expansion tank would release pressure with a hiss similar to taking the lid off a soft drink bottle even 12hrs after the engine was switched off.

cheers
Paul

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