Lucas Wiper Motor Repair/Restore?

IT LIVES! :D :D :D

With a bit of insight from Gromit's link, I attacked the wiper motor tonight, uncovering the reduction gearset which was locked solid through bad grease. Then methodically used a multi-meter to follow through the electical side to find a break in the circuit. Eventually found the culprit in the crimped fitting right at the terminal block where the power enters the unit. Carefully uncrimp it, some new wire, resolder it back together and IT LIVES!

I'll have to find what type of grease it needs in the gearbox, then I can put the rest of it back together.

I had looked at the wiper motor disparingly since starting the restoration, thinking that it was likely too far gone, sitting up there on the screen exposed to the elements as it is. Its great that it lives again and has a bit more service left in it yet. That's what I enjoy about these vehicles, just about anything can be fixed with a bit of patience and a few simple tools.

As an aside, I had the same luck with the horn. For the life of me it looked dead, but with a disassemble, clean, a bit of time working out how it was supposed to work, and a few adjustments, it started up again. I didn't think my luck would hold again for the wiper motor...:D

I take a couple of pics when I'm next having some shed time.

Cheers,

Quote:

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Originally Posted by cjc_td5

IT LIVES!
I'll have to find what type of grease it needs in the gearbox, then I can put the rest of it back together.

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i have used the blue boat trailer wheel bearing grease and it lasted 5 years plus so far.

Quote:

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Originally Posted by incisor

i have used the blue boat trailer wheel bearing grease and it lasted 5 years plus so far.

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me to....so its good to know it lasts

Quote:

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Originally Posted by cjc_td5

---- uncovering the reduction gearset which was locked solid through bad grease.
----------- I'll have to find what type of grease it needs in the gearbox, then I can put the rest of it back together.

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When I do my wiper motor up, I will be trying a high temperature water proof wheel bearing grease, the type that is made for boat trailer bearings with disc brakes.
.

Quote:

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Originally Posted by wrinklearthur

When I do my wiper motor up, I will be trying a high temperature water proof wheel bearing grease, the type that is made for boat trailer bearings with disc brakes.
.

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Arthur,
Why does it need to be 'waterproof' grease if the wiper motor is inside the windscreen, do you have your windscreen on the wrong way round ? :D

On a more serious note.....somewhere I have some grease used in power tool gearboxes (I used to work for Festo). Probably worth checking out what's recommended for use in a power tool gearbox because it's a similar setup to the wiper gearbox.

Colin

Quote:

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Originally Posted by gromit

Arthur,
Why does it need to be 'waterproof' grease if the wiper motor is inside the windscreen, do you have your windscreen on the wrong way round ?

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Its all to do with the angle of the windscreen glass, when the glass is reflecting the clouds, the twiddly bit is pointing opposite direction to the way rain drops come down.
:D
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the rain on the pane can cause much pain when it leaks down the shaft and into the gearbox as there isnt much in the way of sealing in place :p

water and normal grease tends to make a mud that hardens up in next to no time.

new ones of these help a bit as well

Land Rover Series Wiper Motor Seal - x2 | eBay

not cheap tho.

Quote:

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Originally Posted by incisor

new ones of these help a bit as well

Land Rover Series Wiper Motor Seal - x2 | eBay

not cheap tho.

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Do they work? Do they last? Will they kark it in a darkened shed?

Can anyone vouch for the quality? I have wasted my money on too many rubber parts, that haven't lasted 5 minutes!

I used white silicon fishing reel grease in mine :)

Quote:

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Originally Posted by cjc_td5

IT LIVES! :D :D :D

With a bit of insight from Gromit's link, I attacked the wiper motor tonight, uncovering the reduction gearset which was locked solid through bad grease. Then methodically used a multi-meter to follow through the electical side to find a break in the circuit. Eventually found the culprit in the crimped fitting right at the terminal block where the power enters the unit. Carefully uncrimp it, some new wire, resolder it back together and IT LIVES!

I'll have to find what type of grease it needs in the gearbox, then I can put the rest of it back together.

I had looked at the wiper motor disparingly since starting the restoration, thinking that it was likely too far gone, sitting up there on the screen exposed to the elements as it is. Its great that it lives again and has a bit more service left in it yet. That's what I enjoy about these vehicles, just about anything can be fixed with a bit of patience and a few simple tools.

As an aside, I had the same luck with the horn. For the life of me it looked dead, but with a disassemble, clean, a bit of time working out how it was supposed to work, and a few adjustments, it started up again. I didn't think my luck would hold again for the wiper motor...:D

I take a couple of pics when I'm next having some shed time.

Cheers,

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Glad to hear you managed it - as I thought when I wrote my first post in this thread, it turned out to be easily fixable! (although I did not perhaps put it as clearly as I might have)

John