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Search: Posts Made By: David C
Forum: 8 & 10 cyl Bristol cars 01-05-22, 01:03 PM
Replies: 22
Views: 2,544
Posted By David C
I suggest testing as follows: Using sealed beam...

I suggest testing as follows:

Using sealed beam headlamp with flying leads, remove and test cables on rear of switch on passenger door - both 12V supplies and both earth paths through breakers. If...
Forum: 8 & 10 cyl Bristol cars 30-04-22, 10:36 AM
Replies: 22
Views: 2,544
Posted By David C
Per my post of 22nd March, if all is well on the...

Per my post of 22nd March, if all is well on the driver's side you will have 2 x 12V supply and 2 x earth on the passenger switch. Check on the passengers switch with a meter that the 12V doesn't...
Forum: 8 & 10 cyl Bristol cars 30-04-22, 10:17 AM
Replies: 22
Views: 2,544
Posted By David C
Can you confirm what you now have? It sounds as...

Can you confirm what you now have? It sounds as though the driver's window works as it should. Does the passenger's window operate from either switch?

The switches are symmetrical so, unless they...
Forum: 8 & 10 cyl Bristol cars 20-03-22, 10:15 AM
Replies: 22
Views: 2,544
Posted By David C
If you have +12 volts supplied from the driver's...

If you have +12 volts supplied from the driver's side switch then the circuit for the passenger switch can be simplified as in the attached diagram.

The best tool for fault finding will be a 12V...
Forum: 8 & 10 cyl Bristol cars 20-03-22, 09:28 AM
Replies: 22
Views: 2,544
Posted By David C
If you take a look at my sketch below you will...

If you take a look at my sketch below you will see that +12V on all connections is very nearly what you need. It is only the top right connection on the left hand switch in the sketch that provides...
Forum: 8 & 10 cyl Bristol cars 14-03-22, 02:30 PM
Replies: 22
Views: 2,544
Posted By David C
Thanks, Kevin. Is there a way to get the images...

Thanks, Kevin. Is there a way to get the images into the body of the text?
Forum: 8 & 10 cyl Bristol cars 14-03-22, 11:38 AM
Replies: 22
Views: 2,544
Posted By David C
Understanding what the switches do is the...

Understanding what the switches do is the key.

The motor is fed from the middle contacts of the passenger door switch. In its rest position the driver's door switch for the passenger window simply...
Forum: 8 & 10 cyl Bristol cars 14-03-22, 12:54 AM
Replies: 22
Views: 2,544
Posted By David C
Just found a schematic. Are you able to swap out...

Just found a schematic.

Are you able to swap out the passenger side switch with the driver's window switch?

As the driver's side switch for the passenger window is used at rest to supply power to...
Forum: 8 & 10 cyl Bristol cars 13-03-22, 10:49 PM
Replies: 22
Views: 2,544
Posted By David C
Are you able to post a copy of the diagram?

Are you able to post a copy of the diagram?
Showing results 1 to 9 of 9

 
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