Mo Reviews Posted November 8, 2019 Author Share Posted November 8, 2019 So, I didn't manage to have a completely thorough look this afternoon as the new alarm installation took longer than anticipated. However, we had the car idling for over an hour whilst the work was being carried out and there was absolutely no signs of a water leak. I also had a look at the coolant level, which, surprisingly, appeared full!! Here's a picture of the cap Scooter. I think the next thing to try, as kindly suggested, will be to pressure test the system and hope it doesn't explode in the process, until then, the mystery continues... Quote Link to comment Share on other sites More sharing options...
Dnk Posted November 9, 2019 Share Posted November 9, 2019 (edited) Stock is 1.1 bar so the 1.3 bar puts a bit more strain on the old system, approx 3 psi Edited November 9, 2019 by Dnk (see edit history) Quote Link to comment Share on other sites More sharing options...
evinX Posted November 9, 2019 Share Posted November 9, 2019 Why is there any need for a 1.3 bar cap on a road car? That will just have the system under silly pressure constantly. Get a 1.1 back on there single turbo or not Quote Link to comment Share on other sites More sharing options...
Mo Reviews Posted November 9, 2019 Author Share Posted November 9, 2019 What is the extra pressure meant to do anyway? Aside from blowing up random components of the radiator system? Quote Link to comment Share on other sites More sharing options...
Dnk Posted November 9, 2019 Share Posted November 9, 2019 What is the extra pressure meant to do anyway? Aside from blowing up random components of the radiator system? Lets the system run hotter without it boiling A system under pressure can handle higher temperatures, and offers a higher static boiling point. ... If pressure is applied to the liquid, it must become hotter before it can boil. Pure water in a cooling system will boil (at sea level) at 212° F. At higher altitudes, atmospheric pressure is less than at sea level. Quote Link to comment Share on other sites More sharing options...
Mo Reviews Posted November 9, 2019 Author Share Posted November 9, 2019 Lets the system run hotter without it boiling A system under pressure can handle higher temperatures, and offers a higher static boiling point. ... If pressure is applied to the liquid, it must become hotter before it can boil. Pure water in a cooling system will boil (at sea level) at 212° F. At higher altitudes, atmospheric pressure is less than at sea level. Right, so with a single turbo, wouldn't the system run hotter than a standard twin set up? Quote Link to comment Share on other sites More sharing options...
Mk4Gaz Posted November 10, 2019 Share Posted November 10, 2019 Right, so with a single turbo, wouldn't the system run hotter than a standard twin set up?Not really, probably cooler if the turbo is oil cooled only Quote Link to comment Share on other sites More sharing options...
Mo Reviews Posted November 10, 2019 Author Share Posted November 10, 2019 Anyone know where I can get one? The usual suspects only seem to stock the high pressure caps... Quote Link to comment Share on other sites More sharing options...
Marty Posted November 10, 2019 Share Posted November 10, 2019 Link Quote Link to comment Share on other sites More sharing options...
Mo Reviews Posted November 10, 2019 Author Share Posted November 10, 2019 Thanks buddy; ordered. Quote Link to comment Share on other sites More sharing options...
Kopite Posted November 15, 2019 Share Posted November 15, 2019 I had this in the drivers footwell and it was a dodgy window seal. Just incase it's seen rain lately Quote Link to comment Share on other sites More sharing options...
Mo Reviews Posted November 15, 2019 Author Share Posted November 15, 2019 I think it was raining the day I noticed it... I'll have a look over the weekend. Maybe run a hose over the seals and see if it starts seeping through... Quote Link to comment Share on other sites More sharing options...
Mo Reviews Posted November 15, 2019 Author Share Posted November 15, 2019 Update So, ran a hose over the car today and there were absolutely no signs of any seepage. I also had the car running for over an hour with the AC on full blast and, again, there were no signs of a leak. Also, as far as I can tell, the coolant level is full, so I'm pretty much out of ideas now... Quote Link to comment Share on other sites More sharing options...
Scooter Posted November 15, 2019 Share Posted November 15, 2019 Just have to monitor the coolant closely, you'll be having to use the heater a lot in the coming months so you'll notice a loss of coolant of cabin heat. If your coolant doesn't go down but then the footwell gets wet again you are back to hunting a leak to the elements. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted December 3, 2019 Share Posted December 3, 2019 Taste the water, if it tastes very sweet it's engine coolant and the matrix is dead. Don't let a dog in the car they will lap it up and it's a killer, maybe to a cat, too. The air con can only produce water externally when in use and the water from the heat exchanger defrosts, a drain should take ot outside the car. the air con uses no water INTERNALLY. Often the water valve is sticking check everything it's not a job to tackle twice.... Quote Link to comment Share on other sites More sharing options...
Mo Reviews Posted December 3, 2019 Author Share Posted December 3, 2019 Thanks Chris, the car is currently in pieces so will examine everything and report back with any significant findings before putting humpty dumpty back together again... Quote Link to comment Share on other sites More sharing options...
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