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Thread: Blanking off heater hoses in a '95 RRC 3.9

  1. #1
    Join Date
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    Blanking off heater hoses in a '95 RRC 3.9

    Tiny problem, but want to be sure-to be sure that some damage does'nt eventuate down the track...

    Does anyone know of any reason, or damage that might be caused by 'plugging' the heater send/return hoses, so that there is NO flow at all from the engine block to the heater, rather than merely short-circuiting it ? (and allowing more than usual flow)

    My '95 Classic 3.9 has corroded metal pipes that feed through the firewall, and I'd like to drive it till I save up enough to replace them...

    What I'm trying to avoid for now, is the little , 4" long, 3/4 to 7/8" joiner from the block to the heater-circuit.


    Any thoughts welcome

    James in Gosnells

    '95 Classic Vogue SE with working air suspension AND Cruise Control.
    - and stuffed bottom radiator hoses, and leaky power-steering pipes too...

  2. #2
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    No problems with plugging the ends. There are purpose made rubber block off caps ( Usually where you see the auto nuts and bolts stands) in various sizes.

  3. #3
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    Blanking it will work, I prefer to loop the hoses back onto each other, primarily because it helps with bleeding
    Dave

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

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  4. #4
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    I prefer looping the hoses becuse it helps keeping a good flow of coolant around the engine with the thermostat closed, reducing hot spots. You should be able to find a suitable hose at an auto shop, e.g falcon EB etc heater hose to firewall has a u-turn.

  5. #5
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    Two good reasons to loop.

  6. #6
    mike 90 RR Guest
    Loop it .... A rummage through the plumbing department at the hardware store should bring up a couple of 90 degree copper elbows and 4 hose clamps

  7. #7
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    Actually, looping is'nt the niggle, its the imbeciles who put a 'large' (7/8") fitting on the top of the engine to feed hot water to the heater.

    But the length of metal pipe it feeds, is a 'smaller' diameter. (3/4") - As is the rest of the heater hoses and pipes.

    No prizes for guessing how expen$ive this 4" piece of work is.... and why I have no intention of being ripped off.

    A double-ended hose barb, with the ends of the required diameters. Plus 2 extra hose clamps and $3.00 of heater hose.

    I'll keep the flow going...

  8. #8
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    Quote Originally Posted by superquag View Post
    Actually, looping is'nt the niggle, its the imbeciles who put a 'large' (7/8") fitting on the top of the engine to feed hot water to the heater.
    You do know these unscrew? 15/16 deep socket, extension and a ratchet, 1/2 BSP thread in the housing. Get a 19mm brass nipple from the plumbers.

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