15 replies to this topic

[newenglandmini]

My car has the following wiring at the wiper motor loom connection:

Green, Red/Green, Brown/Green.

 

Is this a one-speed or two-speed motor?

 

 IMAG01231.jpg   55.75K   42 downloads

 

[Itsaminithing]

Look it up in your Haynes manual, & if you haven't got a manual -why not??? Indispensable!

I can't tell if it's a one speed or two speed motor just by the pic -but the wiring loom is for a one speed wiper motor.

A two speed loom would have green, red/light green, brown/light green, light green/orange + blue/light green.

Edited by Itsaminithing, 19 March 2016 - 01:25 PM.

[Ethel]

The loom is single speed, count the wires coming out of the motor itself - 3 on a two speed.

[newenglandmini]

Ethel, I've just taken a look a minispares.  My car is a 1974, and the motor and wires are the same as minispares GXE7708, which is two-speed.

 

I purchased loom 5L1331 from minispares which is supposed to be compatible for the Mk 3 through 1976, which would include two-speed wiper leads.

 

The loom has the three leads noted above at the switch.  The green is hot.  One of the remaining leads would be low speed, the other would be high speed.  What would the purpose of a fourth lead (green/blue?)  Perhaps my loom is configured for two-speeds, and a fourth lead would be for intermittent control.

 

Doug, are you available to lend your expertise?

Edited by newenglandmini, 18 March 2016 - 03:54 PM.

[dklawson]

I am posting a picture below from Holden.co.uk showing the connector on the wiper motor.  To operate with two speeds the motor needs 5 wires.  The power in and  out to switch shown on the "right" side of the connector picture below should be for the park switch.  

 

Based on the image below and the picture you posted earlier, I agree that as currently wired, this motor will only have one speed regardless of whether the motor itself is two speed.

 

[newenglandmini]

Hi Doug.  I'm confident that the motor is two-speed.  As further confirmation, my original wiper control rocker switch is three-position, which would be correct for a two-speed application.

 

It would appears that the loom is incorrect.  Too late to change it of course.  I can add a lead to the "feed slow-speed" motor terminal and run it to the wiper switch.  I could accomplish this by cutting away a portion of the loom plug, and using a standard female connector.  Is there a more elegant method to accomplish this?

 

I plan to use a Lucas 35927 toggle switch as my wiper control.  I have learned that the terminals are numbered 1-8 on these switches, but I haven't found a wiring diagram that is helpful.  Can you tell me by wire color code how my wiper leads will connect to the switch?

 

Thanks for your assistance.

[newenglandmini]

Bump.

[mad4classics]

You don,t need to cut away the connector, it takes standard 187 (3/16) terminals with a locking tang.

[Ethel]

It's not unusual to find a 2 speed motor on single speed circuit, other BL models had 2 speed wipers, and the same motor, while the Mini was still single speed.

 

UK market Minis, at least, didn't get two speed until after '76, but if the motor's 2 speed you should be able to get it working as such. There's a good bit on the interweb explaining Lucas wipers. I'll see if I can find the link - the extra wire is for park, the motor has a direct ignition feed via the green wire, first speed just  by passes the park switch.

 

http://www.theminifo...848-wiper-park/

[newenglandmini]

Thank you Ethel.  My car will be a show queen rather than a daily driver, and as such, a single speed arrangement will be adequate.

 

Minispares offer the Lucas 31780 toggle switch as a single-speed wiper switch.  Can you tell me what the wire connections (by color code) from my single-speed loom to a Lucas single-speed toggle switch (31780) are?

[newenglandmini]

(I'm bumping this because I posted 30 minutes ago, and it has not appeared under "view new content").

[newenglandmini]

Bump

[dklawson]

Corey, I have never seen a multi-speed motor wired to a single speed switch.  I will look through what documentation I have and see what I can find out.

[newenglandmini]

Doug, perhaps you did not see my earlier note.  I'm happy to connect it either way, as long as I can make it work!   See my self-quote below.

 

Hi Doug.  I'm confident that the motor is two-speed.  As further confirmation, my original wiper control rocker switch is three-position, which would be correct for a two-speed application.

 

It would appears that the loom is incorrect.  Too late to change it of course.  I can add a lead to the "feed slow-speed" motor terminal and run it to the wiper switch.  I could accomplish this by cutting away a portion of the loom plug, and using a standard female connector.  Is there a more elegant method to accomplish this?

 

I plan to use a Lucas 35927 toggle switch as my wiper control.  I have learned that the terminals are numbered 1-8 on these switches, but I haven't found a wiring diagram that is helpful.  Can you tell me by wire color code how my wiper leads will connect to the switch?

 

Thanks for your assistance.

[dklawson]

I am posting a couple of picture links below which may prove helpful.

 

 

The later wiper switch and motor plug with color codes:

And the motor wiring again with color codes.

 

If you use the Lucas 35927 switch that was meant for 2 speed operation you could use your wiring as it is now.  That would limit you to the single, low speed but it would allow for motor parking and would require no effort.  For high-speed you would need to add the high-speed wire (blue/light-green) between motor terminal 3 and switch terminal 8 (the first jpg above).  British wiring in the correct colors is available from Britishwiring.com 

 

If you use the Lucas 31780 switch, it is a simple, on/off toggle.  Your car will only have one wiper speed with no parking... just like my Mk1.

 

Were this my car I would buy the Lucas 35927 switch, wire it as shown in the JPGs above, and use it as is now with the single speed.  If in the future you want to add high-speed (and I am almost certain you will), you can buy the blue/light-green wire and run it in parallel to the wiper motor harness (again based on the wiring in the jpgs above).  

 

If you really want to go Mk1 with your wiring, I believe the easiest choice for you would be to buy the 31780 switch.  Connect the green wire into the switch and connect the green/red wire from the motor to the other side of that switch.  With the black wire providing earth, the simple on/off toggle should give you basic single speed wiper operation (without park).

 

Incidentally, the off/on/on switch is available from Auto Electric Spares in the U.K. for 14 GBP

http://www.autoelect...uk/product/1197