Waterless coolant ??
  • Register
  • Help
Results 1 to 7 of 7
  1. #1
    Fellow Frogger!
    Join Date
    Nov 2010
    Location
    Slovenia
    Posts
    198

    Default Waterless coolant ??

    Hi All,
    Have rebuilt a 504 engine and will soon start it up for the first time, or hopefully anyway. I like the idea of waterless coolant but as its a bit expensive I'd like to prove there are no leaks before pouring it in. I guess pressure testing is the way to go, but how?
    Can anyone recommend a method of doing this? And what sort of pressure to run it up to?
    Also, what's the consensus on waterless coolant, anyway?
    Thanks in advance.

    Advertisement

  2. #2
    Fellow Frogger! Lasya's Avatar
    Join Date
    Jan 2015
    Location
    A comfy place.
    Posts
    319

    Default

    I read an article in a 4WD mag about 12 18 months ago, they loved it. Before using it he could never keeps temps safe on the beach, dropped them 15 degrees if I remember right.
    Gillian and Chris

    74 D Special, and now a 74 Pallas 23 5 speed with air(maybe). And now a Cactus!

    Oh, and a Holden.

    Lasya, Tibetan goddess of the moon and beauty who carries a mirror.

  3. #3
    1000+ Posts
    Join Date
    Jun 2013
    Location
    Sydney
    Posts
    9,028

    Default

    A magic formula that is becoming the rage. It is actually propylene glycol, and while having a higher boiling point than conventional ethylene glycol and water, it has lower thermal capacity. Never let water get in as it may vapourise in the engine, leaving areas of no cooling.

  4. #4
    1000+ Posts jo proffi's Avatar
    Join Date
    May 2003
    Location
    sydney
    Posts
    8,432

    Default

    Pressure testing is one test which can show leaks, but idealy you'd run a waterless coolant at atmo pressure anyway.


    The problem I see with your situation is making sure everything is spot on. Time is the best judge of that.
    Just use good regular coolant untill 6 month or so have passed then do the change if nothing is playing up.

    pressure testing....you can buy a kit, or if you are a thrifty type guy, grab a pressure gauge and a shraeder valve and work out how you can cobble up some plumbing to add them to your system.
    I actualy tapped a shraeder valve into my coolant bottle permanently, and pressure testing is as easy as pulling out a bleeder plug, shoving a pressure guage into the hole, and pumping up the cooling system with a small bike pump.
    Once you bike pump efforts get to radiator or expansion bottle cap pressure you should see the pressure level out as excess is vented and it should hold that pressure for a good time.
    How long will depend on how well everything seals (including your test rig).


    Jo

  5. #5
    1000+ Posts jo proffi's Avatar
    Join Date
    May 2003
    Location
    sydney
    Posts
    8,432

  6. #6
    1000+ Posts Pug_405_Mi16's Avatar
    Join Date
    Oct 2001
    Location
    Hobart
    Posts
    1,496

    Default

    I wouldn't bother, I took the head off my '73 504 a couple of years back for the first time in it's life and the cooling system was in perfect condition. Not a hint of corrosion anywhere in the system.

    This car has done 250,000 miles and always used BP (or now Castrol) coolant with regular water.
    1989 Peugeot 405 Mi16
    1990 Peugeot 505 GTD Turbo Wagon
    2000 Peugeot 306 XSI
    1973 Peugeot 504 GL





  7. #7
    Fellow Frogger!
    Join Date
    Nov 2010
    Location
    Slovenia
    Posts
    198

    Default

    Thanks jo proffi, the article makes interesting reading but doesn't make it sound all that flash.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •