Results 1 to 6 of 6

Thread: interesting phenomena

  1. 20th May 2013, 09:23 PM #1
    jx2mad's Avatar
    jx2mad
    jx2mad is offline ForumSage Subscriber
    Join Date
    Jan 1970
    Location
    Sussex Inlet. N.S.W.
    Posts
    6,908
    Total Downloaded
    0

    interesting phenomena

    Having recently replaced the EGR valve with a blocking kit on my '03 L322, I have noticed that it takes a lot longer to warm up. Tonight arriving home (14km drive) with the outside temperature showing 8 degrees, the temp gauge showed a lower temp than normal. I assume that this is because no hot exhaust gasses are getting into the air intake, so the engine runs cooler and takes longer to heat up. Jim
    Last edited by jx2mad; 20th May 2013 at 09:24 PM. Reason: Spelling
    Jim VK2MAD
    -------------------------
    '17 Isuzu D-Max
    Reply With Quote Reply With Quote
  2. 21st May 2013, 12:14 AM #2
    RangieBit's Avatar
    RangieBit
    RangieBit is offline Master Subscriber
    Join Date
    May 2011
    Location
    Melbourne
    Posts
    281
    Total Downloaded
    0
    Well that could certainly be part of it Jimbo.

    So, winter time. Average morning temp about 5-6deg. I used to have a 60km commute and as long as I traveled at a reasonable pace (enough to ensure sufficient airflow thru the radiator/intercooler without fan assistance) it took about 45 of those km before the temp gauge showed a "normal" operating temperature. Up in the alps it once took all morning before the gauge showed a mid range or "normal" temp. I think part of it also is that the gauge isn't showing a real temp, it's being fed the signal prompted by an amalgam from multiple ECU inputs.

    That's an unmodified (no EGR blanking) TD6 btw.

    This is my recorded experience, your mileage may vary (as they say).

    Cheers,
    Iain
    Reply With Quote Reply With Quote
  3. 21st May 2013, 04:49 AM #3
    Blknight.aus's Avatar
    Blknight.aus
    Blknight.aus is offline RoverLord Vendor
    Join Date
    Aug 2006
    Location
    Melbourn(ish)
    Posts
    26,516
    Total Downloaded
    0
    errr.....

    how about, its colder, you have more cooling effect coming off of the block and you also have the heater on which will be pulling heat out of the engine.

    If you have oil coolers they're now also working a hell of a lot more effectively at dumping heat.
    Dave

    "In a Landrover the other vehicle is your crumple zone."

    For spelling call Rogets, for mechanicing call me.

    Fozzy, 2.25D SIII Ex DCA Ute
    Tdi autoManual d1 (gave it to the Mupion)
    Archaeoptersix 1990 6x6 dual cab(This things staying)


    If you've benefited from one or more of my posts please remember, your taxes paid for my skill sets, I'm just trying to make sure you get your monies worth.
    If you think you're in front on the deal, pay it forwards.
    Reply With Quote Reply With Quote
  4. 21st May 2013, 05:39 AM #4
    Graeme
    Graeme is online now Swaggie Vendor
    Join Date
    Jan 1970
    Location
    NSW SW Slopes
    Posts
    12,085
    Total Downloaded
    0
    The EGR coolers on the 3.0 TDV6 are closed until the engine warms-up to speed-up engine warming.
    MY21.5 L405 D350 Vogue SE with 19s. Produce LLAMS for LR/RR, Jeep GC/Dodge Ram
    VK2HFG and APRS W1 digi, RTK base station using LoRa
    Reply With Quote Reply With Quote
  5. 21st May 2013, 07:52 AM #5
    jx2mad's Avatar
    jx2mad
    jx2mad is offline ForumSage Subscriber
    Join Date
    Jan 1970
    Location
    Sussex Inlet. N.S.W.
    Posts
    6,908
    Total Downloaded
    0
    Thanks all. I assumed it was something like that. I suppose it won't hurt the engine to run cooler? Jim
    Jim VK2MAD
    -------------------------
    '17 Isuzu D-Max
    Reply With Quote Reply With Quote
  6. 21st May 2013, 09:46 AM #6
    RangieBit's Avatar
    RangieBit
    RangieBit is offline Master Subscriber
    Join Date
    May 2011
    Location
    Melbourne
    Posts
    281
    Total Downloaded
    0
    Quote Originally Posted by Blknight.aus View Post
    errr.....

    how about, its colder, you have more cooling effect coming off of the block and you also have the heater on which will be pulling heat out of the engine.

    If you have oil coolers they're now also working a hell of a lot more effectively at dumping heat.
    Absotively and posilutely. Hence my comment about sufficient airflow thru things without extra assistance. You know, all that nice cool air flowing by and liberating heat from that great hunk of metal called an engine. The intercooler is now working better at reducing the intake temp because the temp differential is greater. All of this in addition to the things you mention like oil coolers. As has also been pointed out, the EGR would normally be allowing uncooled gases into the intake. Although from my personal experience this may not be as big a part of the equation as some of the obvious things you mention.

    Some of this is also about the story after changing something. We tend to get ultra sensitive to things again that maybe we'd just taken for granted when everything was "status quo". Case in point, the temp gauge probably exhibited very similar behaviour last winter but we just didn't really pay as much attention.

    Just my $0.02 worth.

    Cheers y'all,
    Iain
    Reply With Quote Reply With Quote
« 4.4 increasing vibration - then it's gone | Rogue Driver's Aircon »

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
  •  

Forum Rules

Search AULRO.com ONLY!
 Search All the Web!