Lewis Posted August 20, 2014 Share Posted August 20, 2014 My heater blower fan is toast, luckily I have a spare on the shelf. Having had a look at it this evening it doesn't look like much fun to change. Anyone know if it can be replaced in situ? Quote Link to comment Share on other sites More sharing options...
Scotts90 Posted August 20, 2014 Share Posted August 20, 2014 It's held into the rear of the housing by 5 studs (8mm nuts) I don't think you'd have enough space to drop it clear and lift out...that's assuming you could even get the nuts undone. Was a long time ago I stripped mine down but I'm pretty sure the footwell mounting bracket on the heater assembly restricts access to a couple of the nuts....plus it's tucked under the wing too. Quote Link to comment Share on other sites More sharing options...
Ex Member Posted August 20, 2014 Share Posted August 20, 2014 Just take the heater assembly off. It is not hard. It is a good time to clean out the matrix and check that the flap seals are good. Quote Link to comment Share on other sites More sharing options...
Lewis Posted August 20, 2014 Author Share Posted August 20, 2014 I know it's not hard to remove, I only fitted it 8months ago, I was just trying to avoid disturbing the heater/bulkhead seal again Quote Link to comment Share on other sites More sharing options...
Ex Member Posted August 20, 2014 Share Posted August 20, 2014 Are you positive it is toast? They can get jambed up with dirt and you just need to free them up. The foam seal should be fine with taking the heater in and out. Quote Link to comment Share on other sites More sharing options...
Lewis Posted August 20, 2014 Author Share Posted August 20, 2014 I haven't physically checked it yet - ie by removing the intake and spinning it by hand etc. The fan died whilst wading so I've pulled the two pin bullet connector and tried it with the powerprobe but no joy - it trips the probe out indicating a dead short Quote Link to comment Share on other sites More sharing options...
sighnbox Posted August 20, 2014 Share Posted August 20, 2014 Really lube it well before fitting learnt that one 2 fans latter due to seized bearings Quote Link to comment Share on other sites More sharing options...
Ex Member Posted August 20, 2014 Share Posted August 20, 2014 Then spin it by hand. They get jambed easily when wading. Take a hose through the intake and wash it out. You do understand the wiring as well, I assume? The motor gets constant switched power and the speed switches, switch the ground. If you are just check the resistance across the motor, it will be very low. Quote Link to comment Share on other sites More sharing options...
Scotts90 Posted August 21, 2014 Share Posted August 21, 2014 I suppose a comparison between resistance readings of the fitted (goosed) one and the replacement will confirm its status? Quote Link to comment Share on other sites More sharing options...
Lewis Posted August 21, 2014 Author Share Posted August 21, 2014 I haven't checked the resistance either, I unplugged the fan two pin plug from the resistor loom (which then plugs into the three pin dash loom plug) and gave it 12v with my powerprobe, no dice regardless of polarity. The identical test on my spare motor has it spinning relatively freely, hence my conclusion that the fitted motor is defective Am I doing something wrong here? I will remove the intake grille later and stick my hand down the duct to physically check for obstructions/jams and to rotate the fan manually Quote Link to comment Share on other sites More sharing options...
Ex Member Posted August 21, 2014 Share Posted August 21, 2014 As I said, it take very little so jamb the fan. The motor will sit there stalled for the rest of time without damage. Putting power to it will do nothing. You won't hear anything and nothing will move. I've done this to mine dozens of times. The fan sits at a low point and collects dirt. It is not the best design in the world. Quote Link to comment Share on other sites More sharing options...
Mo Murphy Posted August 21, 2014 Share Posted August 21, 2014 Lewis, stick your hand in, give it a spin by hand, spray a good dose of wd40 in it, then give it a go on the electric. Mo Quote Link to comment Share on other sites More sharing options...
Lewis Posted August 24, 2014 Author Share Posted August 24, 2014 Thanks for your help and tips guys, it was in fact just a bit seized. It now runs happily off the power probe, just got to find some more glass fuses Quote Link to comment Share on other sites More sharing options...
C18RCH Posted August 27, 2014 Share Posted August 27, 2014 Do the bilge extracter fan mod from the tech archive. It is awesome, a fan that actually works. Quote Link to comment Share on other sites More sharing options...
guy009 Posted August 27, 2014 Share Posted August 27, 2014 Do the bilge extracter fan mod from the tech archive. It is awesome, a fan that actually works. I may be being a div but I can't find anything relating to bilge, fan, or extracter/extractor in the tech archive? Quote Link to comment Share on other sites More sharing options...
C18RCH Posted August 27, 2014 Share Posted August 27, 2014 http://forums.lr4x4.com/index.php?showtopic=62485&hl= Quote Link to comment Share on other sites More sharing options...
Ex Member Posted August 27, 2014 Share Posted August 27, 2014 IMO, living somewhere that gets cold.... The stock fan capacity is fine if everything is in good order. The low efficiency and small matrix is the biggest problem. Good enough for the UK though..... If you really want to improve things, there are much better heaters that are not expensive and not hard to fit. Quote Link to comment Share on other sites More sharing options...
guy009 Posted August 27, 2014 Share Posted August 27, 2014 Thanks C18RCH - was searching through tech archive...! Red90 - sounds interesting do you have any details or a thread related to the better heaters? Cheers PS - cold? Last time I was in Canada it was 38 degrees C! (ok, to be fair it was cold on the Athabasca glacier..) Quote Link to comment Share on other sites More sharing options...
Ex Member Posted August 27, 2014 Share Posted August 27, 2014 It is only winter 6 months of the year. This is my heater: http://www.red90.ca/rovers/Heater/ It has actually been completed, but I keep not finishing the web page.... Anyway, that particular one is a bit large which made the install difficult and it would not work in a RHD truck. It actually provide more heat than ever needed, even at -40 C.... The air temperature is high enough to burn. Some more photos here: http://www.red90.ca/photos/land-rovers/Heater showing the intake duct and some of the interior mods. I would suggest this one: http://www.summitracing.com/parts/SUM-991102-1/ would be a good size. It should give around double the heat output of the stock heater and fit well. For something more local, look here: http://www.carbuildersolutions.com/en/heatac I have not dug in to see what would be a good choice, but the prices are not bad. Quote Link to comment Share on other sites More sharing options...
guy009 Posted August 28, 2014 Share Posted August 28, 2014 Hi Red, I have read through your install and checked out the kit. Looks like a great install, the figures speak for themselves! I'm not sure I can handle fitting the bigger heater solutions, with the squirrel cage fans, although I guess that's the best way.. But I don't want to cut the bulkhead really. I checked out the matrix's on the carbuildersolutions site and they don't do one as big (smaller by 50mm x 25mm height and length) which is a shame as the prices are good. I see allisport do an uprated matrix but that's £220-250! What I would like to have done is fit the bilge blower with an uprated matrix but unless anyone knows of a cheaper, better matrix I think that's out of the window! will keep investigating.. thanks for your input that's given me a good push forward Quote Link to comment Share on other sites More sharing options...
Ex Member Posted August 28, 2014 Share Posted August 28, 2014 You do not need to modify the bulkhead. In fact, on a RHD, you can't widen it anyway as the duct in the dash ends at the heater. Quote Link to comment Share on other sites More sharing options...
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