Page 1 of 2 12 LastLast
Results 1 to 10 of 12

Thread: Thermo fans

  1. 1st August 2010, 07:35 PM #1
    landrover dave's Avatar
    landrover dave
    landrover dave is offline Master
    Join Date
    Oct 2009
    Location
    Meredith vic
    Posts
    292
    Total Downloaded
    0

    Thermo fans

    When I bought my County the Isuzu engine fan was about 150mm away from the fan shroud and 75mm above the top edge. I removed the viscous coupling, fan and shroud, threw them under the work bench, and fitted a set of thermo fans off an EF/EL Falcon. The plastic shroud around these fans has to be trimmed a bit to clear radiator outlets etc. I also put a thermal electrical switch in the thermostat housing, from a Hilux. The switch turns the fans on at 85C and off at 80C. I can manually turn the fans on for steep climbs/hard work and turn them off for deep water. The temp guage doesnt get above 85C, indicated. I have also fitted AU twin fans to several Rangies with the thermal switch in 1 of the cyl block drain holes. Of course the Rangie has a different switch, but wired up the same way, with the radiator cleaned and the correct non glycol coolant none of the vehicles overheat in any condition we have thrown at them.
    Reply With Quote Reply With Quote
  2. 2nd August 2010, 07:54 AM #2
    350RRC's Avatar
    350RRC
    350RRC is offline ForumSage Silver Subscriber
    Join Date
    Mar 2008
    Location
    Bellarine Peninsula, Brackistan
    Posts
    5,502
    Total Downloaded
    0
    Have the same fans and shroud (genuine fake $200 new) in a RRC with stock 3.5 rad cooling a 350 Chev. Best mod I ever did.

    cheers, DL
    Reply With Quote Reply With Quote
  3. 2nd August 2010, 08:04 AM #3
    Dougal
    Dougal is offline ForumSage
    Join Date
    Sep 2007
    Location
    Kiwiland
    Posts
    7,246
    Total Downloaded
    0
    I'm running two toyota corona fans side by side. They don't turn on much.
    The heat switch I'm running looks like a honda part and threaded straight into the thermostat housing.
    Reply With Quote Reply With Quote
  4. 2nd August 2010, 07:24 PM #4
    DRanged's Avatar
    DRanged
    DRanged is offline ChatterBox
    Join Date
    Jan 1970
    Location
    Piggabeen (Tweed Heads)
    Posts
    2,930
    Total Downloaded
    0

    Thermos

    Yep work fine untill you submerge them in silty or muddy water and the motors sieze very quickly. Hence we have now gone back to the original fan. probably wont worry you if you are just touring etc.

    Justin
    Reply With Quote Reply With Quote
  5. 2nd August 2010, 11:28 PM #5
    1103.9TDI's Avatar
    1103.9TDI
    1103.9TDI is offline Master
    Join Date
    Jul 2006
    Location
    Cairns, FNQ
    Posts
    647
    Total Downloaded
    0

    Wink

    Yes, I agree with Justin for once, thermo's work beautifully until you have an electrical issue. Think Central Australia, or The Cape, or any slow hot work, and throw in a trailer. Stick to the EDF, it may be noisy, not super efficient, and potentially susceptable to damage ( I always leave the fan turnable by hand, for water crossings ). But it is simple, does the job with minimal fuss and is ever reliable, like you know what.
    Reply With Quote Reply With Quote
  6. 2nd August 2010, 11:33 PM #6
    1103.9TDI's Avatar
    1103.9TDI
    1103.9TDI is offline Master
    Join Date
    Jul 2006
    Location
    Cairns, FNQ
    Posts
    647
    Total Downloaded
    0

    Cool

    .....be that as it may, if you guys are talking Rangies exclusively, you might need them, but who am I to know.
    Reply With Quote Reply With Quote
  7. 3rd August 2010, 05:22 AM #7
    Dougal
    Dougal is offline ForumSage
    Join Date
    Sep 2007
    Location
    Kiwiland
    Posts
    7,246
    Total Downloaded
    0
    Quote Originally Posted by DRanged View Post
    Yep work fine untill you submerge them in silty or muddy water and the motors sieze very quickly. Hence we have now gone back to the original fan. probably wont worry you if you are just touring etc.

    Justin
    I don't like being submerged in muddy water either, so that's fine.

    *edit*
    I should add that I've never had a radiator fan die on me. One of the front mounted AC pushed fans on my rangie stopped turning about 10 years ago, somehow it was full of dead insects and stones, I turned it by hand, they flicked out and it ran fine again. They've been submerged several times.
    Reply With Quote Reply With Quote
  8. 3rd August 2010, 06:16 AM #8
    DRanged's Avatar
    DRanged
    DRanged is offline ChatterBox
    Join Date
    Jan 1970
    Location
    Piggabeen (Tweed Heads)
    Posts
    2,930
    Total Downloaded
    0

    Missed something

    Quote Originally Posted by 1103.9TDI View Post
    Yes, I agree with Justin for once, thermo's work beautifully until you have an electrical issue. Think Central Australia, or The Cape, or any slow hot work, and throw in a trailer. Stick to the EDF, it may be noisy, not super efficient, and potentially susceptable to damage ( I always leave the fan turnable by hand, for water crossings ). But it is simple, does the job with minimal fuss and is ever reliable, like you know what.
    . Have I missed something in the past

    Justin
    Reply With Quote Reply With Quote
  9. 3rd August 2010, 09:33 PM #9
    landrover dave's Avatar
    landrover dave
    landrover dave is offline Master
    Join Date
    Oct 2009
    Location
    Meredith vic
    Posts
    292
    Total Downloaded
    0
    I have also had electrical fans die from being submerged the trick is to turn them off before submerging them, hence the manual override. They are fine if you turn them off before deep water, but dont forget to turn them on again!
    Reply With Quote Reply With Quote
  10. 3rd August 2010, 09:38 PM #10
    landrover dave's Avatar
    landrover dave
    landrover dave is offline Master
    Join Date
    Oct 2009
    Location
    Meredith vic
    Posts
    292
    Total Downloaded
    0
    I have trailed thermos and viscous fans in hot heavy work and I have found the thermos move more air at lower engine speeds than the original fan. I have used the thermos when towing around 3 tonne on the road during summer, and crawling up steep climbs in the high country also in the summer.
    Reply With Quote Reply With Quote
Page 1 of 2 12 LastLast
« aircleaner to suit 4bd1t in rangie?? | 1985 110 Factory Isuzu Engined Gearbox Issues »

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
  •  

Forum Rules

Search AULRO.com ONLY!
 Search All the Web!