 | Home > Technical > Rear wiper motor for a 1989 90 |
 
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| GUM97 Member Since: 05 Feb 2012 Location: Cheshire Posts: 3555   
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I think you can change it quite easily! My 300' was done the other way round, ie an older motor fitted and the wiring loom adapted. I've got a new motor in the garage I think, I'll have a look later which type it is
 An engine to TDi for!
"Land Rover- Proudly turning drivers into mechanics since 1948"  |
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25th Feb 2014 8:40pm |
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| ksblair Member Since: 25 Feb 2014 Location: Perthshire Posts: 9  
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That sounds promising, thanks.
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26th Feb 2014 11:30am |
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| Martin Site Admin Member Since: 02 Apr 2007 Location: Hook Norton Posts: 6477 
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Looks like the part for the early model is now the newer motor with a conversion loom and some brackets?
The 3 pin connector for the new motor is a common Econoseal 3 pin, and the 2 pin one is only available in the US so delivery is massive for a 20p item. However it takes 2.8mm receptacles so you can use 2.8mm female spades like this:
Does seem like the wiper arms are different for early and late too - just something to be aware of. Martin 1988 90 Td5 NAS soft top
2015 D90 XS SW |
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26th Feb 2014 12:20pm |
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| Mountain_man Member Since: 09 Dec 2011 Location: Right side of Offas Dyke Posts: 756 
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To be fair these things (rear wiper motor/mech) are pretty much generic and used on tonnes of stuff. My old 110 didn't have a rear wiper so I took the motor off an old Subaru Justy tailgate I had under the hedge. I had to make a bracket as I didn't have one but that was simple and it fits and works perfectly. Cost. £0
Might be worth a search of the local scrapyard with a tape measure/diagram and see what is about. |
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26th Feb 2014 1:39pm |
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| ksblair Member Since: 25 Feb 2014 Location: Perthshire Posts: 9
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Click image to enlarge This is the dud wiper motor. |
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26th Feb 2014 2:05pm |
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| texpis Member Since: 13 Jun 2009 Location: Stockton-on-tees Posts: 49 
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I used a disco 1 wiper motor it's a bit longer so the cover doesn't fit correctly but it's not to bad and they can be had cheap
Mick |
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26th Feb 2014 5:00pm |
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| Diablo Member Since: 26 Oct 2011 Location: Basingstoke Posts: 335 
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I got rid of mine (1985) when it packed up.
bound to be a few other makes that use the same components to repair it, but meh. |
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4th Mar 2014 5:39pm |
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| ksblair Member Since: 25 Feb 2014 Location: Perthshire Posts: 9
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Thanks for all of your comments. Martin's post seems the ideal solution but the price of the illustrated wiper motor is over £300. A ridiculous cost. I may go down the route of bodging in a motor from a Disco but am undecided. I paid £30 for a correct model from an EBay breaker only to find that the drive spindle was seized solid - and stayed so despite regular applications of WD40. When I dismantled my original motor everything looked okay. The gearbox mechanism worked; the commutator and brushes seemed OK and there was no corrosion. Mind you, the magnets were difficult to replace in position so I can't be sure that could be a reason for the motor not working.
It isn't an essential item but it's frustrating not being able to identify the fault or have the skill to repair what seems to be a pretty simple piece of equipment. 😮 |
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6th Mar 2014 12:22pm |
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| Martin Site Admin Member Since: 02 Apr 2007 Location: Hook Norton Posts: 6477
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What I was trying to say (but didn't) is that with a few connectors and some brackets then a new type motor could be made to fit.
1988 90 Td5 NAS soft top
2015 D90 XS SW |
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6th Mar 2014 12:26pm |
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| ksblair Member Since: 25 Feb 2014 Location: Perthshire Posts: 9
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I understand your point about the brackets. Sorry if I gave the impression that I was dismissing your post.
What puzzles me is why the motor that superseded my model can be bought for £45 + Vat when the official replacement costs £265+ Vat. This is the £45 + Vat AMR3676 version.
Can anyone suggest how this should be wired? I can fix up brackets (I think) without too much difficulty. |
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6th Mar 2014 3:22pm |
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| Martin Site Admin Member Since: 02 Apr 2007 Location: Hook Norton Posts: 6477
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I gave the info on wiring connectors in my main post above
As far as rewiring goes, the image of the adapter cable in the kit should help. Plus...... 2 pin connector (motor power) Pin 1 (closest to locking tab): Ground (Black) Pin 2: Motor Feed from Relay (Red with Light Green) 3 pin connector (park switch) Pin 1 (see pic below): Park Switch Output (Brown with Light Green) Pin 2: 12V Ignition (GREEN on your old plug, White with Green in kit above) Pin 3: Ground (Black) 1988 90 Td5 NAS soft top
2015 D90 XS SW |
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6th Mar 2014 3:25pm |
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| ksblair Member Since: 25 Feb 2014 Location: Perthshire Posts: 9
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Thanks Martin - really helpful.
As my existing connection is only 4 pins. I assume I can miss out the relay connection as my 1989 wiring does not include a relay. is that correct? |
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6th Mar 2014 3:58pm |
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| Martin Site Admin Member Since: 02 Apr 2007 Location: Hook Norton Posts: 6477
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No wire up your existing colours as above, you need to wire up the existing ground (black wire) to BOTH connectors (splitting it in two). You can see the adapter loom in the kit in my first post above which does exactly this.
Fair point about the lack of relay (only on 02MY onwards) but the earlier switch does the job of it, you still need the wiring otherwise the motor won't work. Thinking about it, have you tried a multimeter on the wiper connector to check if you have an electrical fault rather than mechanical? 1988 90 Td5 NAS soft top
2015 D90 XS SW |
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6th Mar 2014 4:04pm |
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| ksblair Member Since: 25 Feb 2014 Location: Perthshire Posts: 9
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Very much a novice with multimeters but checked with one today.
12 volts to connector. 12 volts from connector to wiper motor connection. This was through the solid green (ignition feed?) wire. No voltage through the other wires. |
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8th Mar 2014 5:13pm |
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