headlight switch
Thread Starter
Racer
Joined: Apr 2007
Posts: 357
Likes: 0
From: Porters Lake Nova Scotia
headlight switch
my lights pop up and stay up when the engine is running, so i decided to trace the problem back. When testing the headlight switch, i put 20" vacuum on port 2(back) and put the gauge on port 3(front). With the switch closed it held at 20", but it also held 20" when opened
When i removed the vacuum source with the switch open it held at 20", and then relased pressure when i closed the switch. Shouldnt it release the pressure when the vacuum source is on though? New switch, could it be faulty?
When i removed the vacuum source with the switch open it held at 20", and then relased pressure when i closed the switch. Shouldnt it release the pressure when the vacuum source is on though? New switch, could it be faulty?
Team Owner
Joined: Sep 2006
Posts: 31,200
Likes: 4,287
From: Westminster Maryland
Here's the test....
**** in,block front (3) hook pump to rear (2) should hold vacuum.
Pull ****, hook pump to front (3), should not hold vacuum. Hook pump to rear (2), should hold vacuum.
Everything I know I owe to Dr. Rebuild.
Regards,
Alan
**** in,block front (3) hook pump to rear (2) should hold vacuum.
Pull ****, hook pump to front (3), should not hold vacuum. Hook pump to rear (2), should hold vacuum.
Everything I know I owe to Dr. Rebuild.
Regards,
Alan
