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Wiper motor drama


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#1 Indy Orange

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Posted 10 October 2021 - 06:29 PM

Hi all , I have problems with my wiper motor that I can’t work out. It was purchased as being totally reconditioned and re zinced , Initially I thought it may have been the switch, so I connected a Preslite motor up which worked fine , so I know it’s not the switch.On further investigation with the motor I noticed three contact points for the plastic cog ? Is this correct for a Lucas wiper motor ? thanks Paul.

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Edited by Indy Orange, 10 October 2021 - 06:37 PM.


#2 Indy Orange

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Posted 10 October 2021 - 07:15 PM

Just saw Marty's rebuilt thread ,mines the same as the last one pictured , this one.

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#3 Indy Orange

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Posted 10 October 2021 - 08:04 PM

It's not working anyway ,can I check anything else?

#4 jd lj

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Posted 11 October 2021 - 04:21 AM

I just saw that your wiper motor has an empty hole for the cover plate bolts. I recall that mine was the same,does anyone know if this correct or are they just missing?

Sorry for thread steal.

#5 sibhs

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Posted 11 October 2021 - 08:51 AM

Do you have three wires going to motor. I can only see two, it might be behind them?

 

Marty



#6 Indy Orange

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Posted 11 October 2021 - 11:17 AM

Yeah , three wires Marty,a fabric sheathed one.I’ve pulled the cog out so I don’t know what location it goes back into , there doesn’t seem to be any locating points on the casing.
James I wondered that too , I received it like that.

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Edited by Indy Orange, 11 October 2021 - 11:18 AM.


#7 Indy Orange

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Posted 11 October 2021 - 01:12 PM

Should all three tabs be making contact with the steel ring on the underside of the cog?

#8 sibhs

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Posted 11 October 2021 - 04:05 PM

I thought one pin touches another when it hits lump or dip in cog creating or breaking a circuit.



#9 Indy Orange

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Posted 11 October 2021 - 06:18 PM

No there’s no lump on this one Marty , but there is a cut out section on the underside on the contact ring which I assume those three contact points go into , I’m not really sure as to what position the cog sits. There is a indication point on the cog (arrow) but I’m not sure where this corresponds to for alignment if at all .

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#10 S pack

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Posted 11 October 2021 - 08:47 PM

Looks to me like this is where the three contacts run.

Attached File  Lucas wiper motor gear.jpeg   68.8K   4 downloads



#11 Indy Orange

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Posted 11 October 2021 - 09:14 PM

Yeah that would make sense Dave, I only saw the two wear marks , but yeah one contact must be on the very inner.Do you know what position the cog would sit?The workshop manual only touches on the preslite version , not much on the Lucas.

Edited by Indy Orange, 11 October 2021 - 09:17 PM.


#12 sibhs

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Posted 11 October 2021 - 09:42 PM

Cog only goes in one way. As it turns it activates copper contacts



I'd run 12v to contacts and first make sure the motor works, then worry about cog.



#13 Indy Orange

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Posted 17 October 2021 - 10:44 AM

Update on the wiper motor,so I found the armature was stuffed I swapped it with an another, and it worked fine .I also found the small arm coming straight from the motor was longer , so they must vary in length,meaning the top of the linkage was hitting the top of the plenum.
So beware I purchased this motor a few years back ,zinc plated and rebuilt for LC Torana, it was neither rebuilt or for LC Torana .
Anyway all sorted . Thanks guys.

#14 Rockoz

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Posted 17 October 2021 - 06:04 PM

Sometimes it just pays to do stuff yourself.

Bugger.

 

Cheers

 

Rob



#15 Indy Orange

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Posted 17 October 2021 - 06:17 PM

Yeah I would have , if I’d had a Lucas ,mine was changed for a Preslite years ago.




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