John Larkin
Sublime Master of Turbology
- Joined
- May 25, 2001
I drew that diagram because RUQWNF27 is using the hood light. You can use anything you like on the Hobbs switch to close the relay. It doesn't take much power and it won't close until the Hobbs switch closes anyhow. You just need good heavy gauge wire running from the alternator through the relay to the pump.