Hi all,
I have an issue to solve.
During my 1FZ-FE (out) / 1HD-T (in) engine swap project I have been slowly going through the newly installed old electric system that fits the 1HD-T. During the installation, the 3 connector plug (IG, S, L) on the alternator back wasn't connected but only the main power cable. I didn't install the engine my self and didn't notice this until yesterday. When I finished connecting the alternator and measured the batteries while running, the voltage slowly increased up to 14 volts and I decided to do some tests with the lights etc. When I placed the voltmeter on the batteries with the lights on, the charging had stopped and the batteries were falling 12.5 volts and going down, rather fast. When I then switched off the truck the alternator was smoking. I decided to wait a bit, let it cool down, start again and measure after hitting the alternator with a hammer to see if the coils were stuck, but when I switched on the truck, it started immediately, with out me turning the key into the start position. The starter then didn't pull the bendix back into the starter - so I immediately turned of the car.
Therefore, now before having the smoking alternator repaired, I want to figure out why this happened. I find the behavior of the starter strange, it did start OK before connecting the 3 connector plug on the alternator (IG, S, L). I have been going through the electrical system, and finishing missing bits here and there (for example the voltage converter timer and relay weren't connected) and I thought I was going in the right direction, until yesterday after 5 minutes of extreme happiness and then what now seems to be an endless sadness...
Any thoughts on this? Could a faulty starter smoke the alternator? Or could a faulty relay or wiring smoke the alternator using the starter for the task?
I have an issue to solve.
During my 1FZ-FE (out) / 1HD-T (in) engine swap project I have been slowly going through the newly installed old electric system that fits the 1HD-T. During the installation, the 3 connector plug (IG, S, L) on the alternator back wasn't connected but only the main power cable. I didn't install the engine my self and didn't notice this until yesterday. When I finished connecting the alternator and measured the batteries while running, the voltage slowly increased up to 14 volts and I decided to do some tests with the lights etc. When I placed the voltmeter on the batteries with the lights on, the charging had stopped and the batteries were falling 12.5 volts and going down, rather fast. When I then switched off the truck the alternator was smoking. I decided to wait a bit, let it cool down, start again and measure after hitting the alternator with a hammer to see if the coils were stuck, but when I switched on the truck, it started immediately, with out me turning the key into the start position. The starter then didn't pull the bendix back into the starter - so I immediately turned of the car.
Therefore, now before having the smoking alternator repaired, I want to figure out why this happened. I find the behavior of the starter strange, it did start OK before connecting the 3 connector plug on the alternator (IG, S, L). I have been going through the electrical system, and finishing missing bits here and there (for example the voltage converter timer and relay weren't connected) and I thought I was going in the right direction, until yesterday after 5 minutes of extreme happiness and then what now seems to be an endless sadness...
Any thoughts on this? Could a faulty starter smoke the alternator? Or could a faulty relay or wiring smoke the alternator using the starter for the task?