Page 2 of 2 FirstFirst 12
Results 11 to 18 of 18

Thread: Radiator Expansion Tank - has anyone fitted one to an S1?

  1. #11
    Join Date
    Jan 1970
    Location
    Canberra
    Posts
    18,474
    Total Downloaded
    0
    Quote Originally Posted by B.S.F. View Post
    Are the big Series 1 and 2 caps available for use with cooling recovery system ?
    .W.
    40 years ago when I bought mine, the kit came with a new radiator cap suitable for the series 1 - but they were the days when you could actually buy accessories for series landies.
    REMLR 243

    2007 Range Rover Sport TDV6
    1977 FC 101
    1976 Jaguar XJ12C
    1973 Haflinger AP700
    1971 Jaguar V12 E-Type Series 3 Roadster
    1957 Series 1 88"
    1957 Series 1 88" Station Wagon

  2. #12
    Join Date
    Sep 2012
    Location
    Westlake ,brisbane
    Posts
    3,922
    Total Downloaded
    0
    Quote Originally Posted by B.S.F. View Post
    Are the big Series 1 and 2 caps available for use with cooling recovery system ?
    .W.
    They are available but if you are having trouble finding a LR one Massey Ferguson's also use the same caps. You will find the pressure stamped on your old cap & the MF are available in AU on eBay. Infect there are a lot of bits like volt meters Ect that MF & LR use that are the same.

  3. #13
    Join Date
    Jan 1970
    Location
    Narre Warren South
    Posts
    6,314
    Total Downloaded
    0
    Quote Originally Posted by 101RRS View Post
    W

    If I ever get my cars going I will be putting one in where the extra tank captures the coolant and lets it back when the system cools.
    The original system worked perfectly OK when the Series I's were new, mine works perfectly OK now. Why change something that works ?

    Interesting comment about why header tanks seem 'standard' now....I wonder what the real reason is ?
    If it's a non-pressurised header tank it allows the non-technical to check the fluid level while hot without getting scalded. Maybe this is the reason ?

    It also allows the radiator to be kept absolutely full at all times so it would increase efficiency. If you check underbonnet regularly you would spot a drop in water level before it compromised cooling.

    I used to run Austin Somersets in the UK, these had a non-pressurised system. The radiator was so oversized that you didn't need to raise the boiling point of the coolant by having a pressurised system. As mentioned earlier, smaller radiators probably have to run at 100% efficiency to stop overheating.


    Colin
    '56 Series 1 with homemade welder
    '65 Series IIa Dormobile
    '70 SIIa GS
    '76 SIII 88" (Isuzu C240)
    '81 SIII FFR
    '95 Defender Tanami
    '58 Series II (sold)
    Motorcycles :-
    Vincent Rapide, Panther M100, Norton BIG4, Electra & Navigator, Matchless G80C

  4. #14
    Join Date
    Jan 1970
    Location
    Canberra
    Posts
    18,474
    Total Downloaded
    0
    Quote Originally Posted by gromit View Post
    The original system worked perfectly OK when the Series I's were new, mine works perfectly OK now. Why change something that works ?
    But they did not work perfectly - that is why I put one on my series 1 which was an everyday driver covering big distances each week - and yes the radiator (had a few) was fine - would get hot going up Mt Ousley on an hot day and the expansion tank would catch the excess coolant that would have been expended onto the road and lost. I didn't have one on my Series 3 and suffered the consequences.

    If they did work so well why has the system changed over the years.
    REMLR 243

    2007 Range Rover Sport TDV6
    1977 FC 101
    1976 Jaguar XJ12C
    1973 Haflinger AP700
    1971 Jaguar V12 E-Type Series 3 Roadster
    1957 Series 1 88"
    1957 Series 1 88" Station Wagon

  5. #15
    Join Date
    Jan 1970
    Location
    Narre Warren South
    Posts
    6,314
    Total Downloaded
    0
    Quote Originally Posted by 101RRS View Post

    If they did work so well why has the system changed over the years.
    As mentioned earlier.....cooling systems sized such that they need to be 100% efficient, coping with the fact that most drivers don't check fluid levels etc. etc.

    If the old system works why try to 'improve' it ?

    Colin
    '56 Series 1 with homemade welder
    '65 Series IIa Dormobile
    '70 SIIa GS
    '76 SIII 88" (Isuzu C240)
    '81 SIII FFR
    '95 Defender Tanami
    '58 Series II (sold)
    Motorcycles :-
    Vincent Rapide, Panther M100, Norton BIG4, Electra & Navigator, Matchless G80C

  6. #16
    JDNSW's Avatar
    JDNSW is offline RoverLord Silver Subscriber
    Join Date
    Jan 1970
    Location
    Central West NSW
    Posts
    28,804
    Total Downloaded
    0
    Probably a major factor is the demand with modern cars for more cooling with less weight and space - the way to achieve this is with a higher coolant temperature and hence radiator pressure, allowing everything to be cooler. This makes it imperative not to lose coolant, as there is not as much to lose.
    John

    JDNSW
    1986 110 County 3.9 diesel
    1970 2a 109 2.25 petrol

  7. #17
    Join Date
    Jan 2013
    Location
    Yarra Valley, Victoria
    Posts
    96
    Total Downloaded
    0

    Another factor

    Quote Originally Posted by JDNSW View Post
    Probably a major factor is the demand with modern cars for more cooling with less weight and space - the way to achieve this is with a higher coolant temperature and hence radiator pressure, allowing everything to be cooler. This makes it imperative not to lose coolant, as there is not as much to lose.
    Another factor is that back in the bad ol' days coolant was plain water. Then came corrosion inhibitors, then anti-freeze/anti boil, and anti-pollution regs: we don't want the environmental impact of ethylene glycol spilling all over the roads, stormwater drains and waterways. Or the cost to the motorist of frequent topping up. So manufacturers in their wisdom incorporated save-and-return systems and also made a gain in the overall weight and size of the cooling system.
    Cheers, Rob S

  8. #18
    Join Date
    May 2015
    Location
    batemans bay NSW
    Posts
    75
    Total Downloaded
    0

    Expansion tank

    Considered logically, the radiator already has an expansion tank; it is the top tank, which is big enough to cater for the change in volume of coolant. On the other hand a separate clear tank would allow a visual check of coolant without removing the radiator cap, and if fitted with a low coolant sensor, would give advance warning of problems.

Page 2 of 2 FirstFirst 12

Tags for this Thread

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Search AULRO.com ONLY!
Search All the Web!