Vehicle & Technical > Defender

improved heating?

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Litch:

--- Quote from: baz2236 on November 17, 2010, 10:04:50 ---Hi I  spent a bit of time last weekend looking at my heater as it was only Luke warm. I put in the new foam seal cleaned out the matrix and heater duck of mud wedged the matrix back in with foam around the edge. Also adjusted the cables this has made my heater better but as Steve said getting it to temperature is the problem mine is N/a diesel and the temp gauge will get to the bottom of the gauge after 5 miles but to get it to quarter in these cold night takes quite a while but when you do it toasty. So I was thinking  blankin half the rad off to get it up to temp quicker or an electric fan rather then the fixed fan currently on. It is worth the effort to adjust the cables and clean it out as it has made a difference.


Steve if you fancy making 2 alloy covers I be happy to pass a few beer tokens your way.

--- End quote ---

I had a NA D for several years and after I had set-up the cables the heater worked fine with no need to remove the viscous-fan or blank off the radiator. Sounds to me like the engine is taking too long to warm-up, is the viscous-fan working ok? The other option is to remove the viscous-fan and fit an electric one, in this weather it probably won't come on anyway but at least it is there. Have you tried a hotter thermostat, I seem to recall you can fit either 88 or 92 degree items?

I blanked-off the rad on my old S111 back in the cold winter of 1987, I had a fixed 4-blade fan and the sheet had plenty of 25mm holes drilled in it but even with the temperature down to about -8 degrees it still boiled over about 6-miles after starting off. From that day I have never been tempted to use a sheet and would rather get the system working correctly first because when functioning 100% correctly it is effective.

baz2236:
my NAD has a fixed fan not a vicious fan it does get to temp after a very long run. why would the engine be taking to long to warm up ?

Litch:
If you have a fixed fan then that will be blowing cold air through the engine-bay all the time and not helping the situation, also they sap more power than a correctly working viscous unit so I do recomend removing it and fitting an electric one.
Is the thermostat working correctly? If it isn't closing properly then it might be allowing water to flow through the radiator all the time and with that fixed fan it will be taking an age to warm up.

The quickest thing to deal with is the thermostat, I would forget testing it and just go and buy a new 92 degree one plus gasket and fit that. Hopefully that should make a difference.

Niel:

--- Quote from: tomo-tdi on October 25, 2010, 18:03:27 ---sorry for all the questions guys but is there anyway of improving the heating in the 90's? im using it daily and sometimes at half 5 in the morning and well you know what there like

--- End quote ---
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Ebby timer controlled engine heater, pre-heat engine and cab, coriflex plastic sheet to cover 2/3 of the grille (all in really bad weather/wading), extra bulkhead behind seats (110 has 6mm clear plastic sheet behind second row) to reduce volume to be heated, electric fan, works for me, though I ride a K1100LTIC ex  :police: most of the time except when snow is expected, and Thursdays when I charge the 110's battery (quietest day on the road with an early finish) so I don't tend to notice the cold... :twisted:

baz2236:
I have another go at my heater today and finally cracked it I change the thermostat to a 82 my old one was 74 bleed the system double checked my cables too it out and it was much improved started to get nice and warm after about 5 miles. I then fitted a small scoop on the wing and wow what a difference that makes. The heat is plentiful now and I found myself turning it down it got too warm inside.

Now I am a very warm 90 driver thanks for your helpful ideas guys.

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