Battery Drain
Elder User
Joined: Mar 2003
Posts: 699
Likes: 0
From: northern Michigan
Battery Drain
If you have a shorted diode in your alternator this will slowly drain your battery. Usually after setting only two days in bad wheatheryou won't have enough juice left to start. But because of alternator design, if you are running the trauck every day it will still keep the battery charged.
Post Fiend
Joined: Nov 2002
Posts: 9,987
Likes: 7
From: Memphis, TN
Battery Drain
Biscuit
The S terminal is one end of the starter relay's coil, and the mounting tab is the other. When the coil is energized, a ferrite slug inside the coil pulls a larger copper washer up against the 2 heavy terminals, and shorts them together, sending battery power to the starter. If there is an I terminal on the relay, it has a small terminal that the washer ALSO contacts when the relay is energized, and is usually used for sending full 12V power to the ignition system, but only on older carbureted vehicles.
Most newer relays don't have the I terminal, have an internal suppressor diode, and have the large terminals facing straight out from the mounting tab (and washer) so the washer makes better contact. The next time you replace yours, be SURE to get the newer style. It's a direct replacement for the old style (in the diagrams) and is more reliable.
Dennis
My truck has no starter interrupt, and came that way from the factory. I've always been able to drive on the starter. The NP-435 has no neutral-start switch, and the truck had no clutch switch until I added cruise.
The S terminal is one end of the starter relay's coil, and the mounting tab is the other. When the coil is energized, a ferrite slug inside the coil pulls a larger copper washer up against the 2 heavy terminals, and shorts them together, sending battery power to the starter. If there is an I terminal on the relay, it has a small terminal that the washer ALSO contacts when the relay is energized, and is usually used for sending full 12V power to the ignition system, but only on older carbureted vehicles.
Most newer relays don't have the I terminal, have an internal suppressor diode, and have the large terminals facing straight out from the mounting tab (and washer) so the washer makes better contact. The next time you replace yours, be SURE to get the newer style. It's a direct replacement for the old style (in the diagrams) and is more reliable.
Dennis
My truck has no starter interrupt, and came that way from the factory. I've always been able to drive on the starter. The NP-435 has no neutral-start switch, and the truck had no clutch switch until I added cruise.
Thread
Thread Starter
Forum
Replies
Last Post
