Detector for CO in the coolant? - howy686
I remember, in a previous posting, someone mentioned that carbon monoxide detected in the coolant header tank vapours was a sure-fire indicator of a leaky head gasket.
Can anyone tell me what this detector is, and where I can get it from?
Thanks in advance.
Detector for CO in the coolant? - David Lacey
It's a great little tool....worth its weight in gold...

Available from specialist garage equipment suppliers and Snap-On....but, beware the checmical solution ain't cheap. It's not really a DIY proposition IMO
Detector for CO in the coolant? - Adam Going (Tune-Up)
Also available from Partco. "Cylinder Block Combustion Tester", but as David says, quite expensive for one-off use. Suggest you seek out an engine diagnostician or garage local to you who can do this for you.

Regards,Adam
Detector for CO in the coolant? - Dynamic Dave
Just a thought; would one that you use in the home to test for carbon monoxide work at all? The plug in jobbies that warns you that your gas boiler is faulty.
Detector for CO in the coolant? - Altea Ego
Or the one off strips?
Detector for CO in the coolant? - Aprilia
When the combustion products get into the coolant it becomes more acidic. Years ago, when my dad was in the garage trade, he used to keep test strips which he dipped into the coolant. They changed colour if the head was blowing. I think at one time there was an antifreeze that had a dye which changed colour (blue to red ??).

I know Partco used to sell tester kits whereby you draw the air in the header tank through an indicator fluid. I think they cost £20-30.