Quote:
Originally posted by Earthworm
I (and others) have noticed voltage loss in the ignition wiring.
We've solved this by adding a relay to pump power directly from the battery to the starter solenoid.
Here's a bad diagram:
Code:
+Battery===30\ /87===Starter Solenoid
\ /
RELAY
/ \
Ground---85/ \86---Ignition
the === wires are the thicker ones (as opposed to ---)
The thin wires are polarity specific.
I borrowed a relay from my aftermarket alarm which was ripped out during the tranny install.
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Here is a bad description of Davids bad diagram.
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I would like to post a picture here that would show the set up, but I am not that talented. So i've put the Bosch terminal numbers on David's diagram.
The relay to use is a standard Bosch 12volt, 30amp unit. Used for horn, driving lights, etc. There is a diagram on the side of the relay cover that shows the connections. If it is mounted near the starter, there is little wiring to do.
The starter has two wires to it, a big battery cable and a small black/yellow wire plugged on to the solenoid. The small b/y wire is removed and connected to terminal 86 on the relay, terminal 85 is connected to earth. A wire (big enough to flow 30 amps) is then run from the large battery terminal on the starter, to terminal 30 on the relay. Another wire is run from terminal 87 on the relay to the spade terminal on the starter solenoid, from where the small b/y wire was removed.
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You can tell if this is the problem by, Leaving the key turned off, disconnect the black/yellow wire from the starter solenoid, take a small piece of wire and short from the main big terminal, to the spade terminal that the b/y wire was plugged on to. The starter should turn the engine over. If it does fitting a relay will fix it.
If it doesn't, then its either the starter or the battery.
Harvey.
