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Where the hells the earth????

Posted: 05 Apr 2007, 19:55
by KarlT
Hi All

Does anyone out there know where the hell the earth is on a caravelles electric front windows?

Hoping I've got a bad earth as have spent 6 hrs ( :roll: ) stripping,breaking,cleaning, re-fitting all the gubings.

Put wire straight from battery to motor & worked well.

But through proper wiring seem to run at half speed.

All help appreciated.


Image


Have disconnected these two bundles behind fuse box but they still ran at half speed

Posted: 05 Apr 2007, 20:07
by tonytech
Does this help.

http://www.pbase.com/tonytech/image/62677533

Looking at this I'd say everything earths behind the dash.

T

Posted: 05 Apr 2007, 21:06
by R0B
that spider thing with all the brown wires.to the left of the no24 relay is an earthing point.....

Posted: 06 Apr 2007, 07:35
by KarlT
Cheers for replies.

Tony..... your drawing (if I can read it right) says its earthing on position 30.


Anyone know where that is?



sukhoi27.... Thats the points I disconnected & still the windows worked.

Posted: 06 Apr 2007, 08:15
by DiscoDave
why not just dissconnect the earth from the motor and put a good clean and know one in?? if it helps wire the whole lot from scratch!

Posted: 06 Apr 2007, 10:40
by KarlT
An idea but....

I'd rather just find the earth, its got two motors & three switches. :shock:


It might of-course be a problem with the supply. It says 12volts but I'm not sure how to check if there is enough amps.

Posted: 06 Apr 2007, 11:12
by Mocki
have you tried lubing the window mechs, and the glass runners ?

Posted: 06 Apr 2007, 14:54
by Dan Wood
KarlT wrote:It might of-course be a problem with the supply.

Yep, there's no point in worrying about earths if your 12V feed isn't up to the job!

You say it ran fine 'direct to the battery', so just connect ONLY THE POSITIVE side direct to the battery and see what happens. (Obvioulsy leaving the 'normal' wiring in place on the negative side!)

If it runs half-speed you do indeed have a poor earth. However, if it runs at full speed then your 12V feed isn't up to scratch somewhere.