Starting circuit challenge - intermittent fault SOLVED
Thank you all for your ideas and input. Went armed with many of your ideas to test, but it ended up much easier than I expected.
Ambient tempurature in Brisbane is around 29C (85F) and Battery was fine, has been used in another vehicle and pumping out lots of power.
I had already check and cleaned and sanded all the battery and earth connections.
At the moment the auto choke isnt working, so I tried just turning it over with the key and it turned over for forever. I couldn't get it to fail.
Volts were fine, 12.6v and 11.5 under cranking, and ammeter was all measuring correctly. interior light stayed on and all electrical worked.
That was quite annoying, as it wasn't giving me a chance to fault find.
I looked for the fusible link (without success) so I decided to start working from the battery outward.
The lesson I had forgotten, was that when you acquire a new project, you need to learn what the previous owner/s have done.
Didn't have to go too far, and at the first junction saw a taped up wire. Once undone looks like a spade connection had been used at some point, it was clearly just connecting, rusted and poorly wound together. (you can see in the second photo)
Once seperated I had a "permanent" no power issue to starter lights and everything else. (Except the horn still worked)
Just that one wire. So I'll replace the faulty wire and do a proper connection.
Again really appreciate all the thoughts and ideas, looks like a good supportive and knowledgable forum, THANKS :thumbsup:
Thank you all for your ideas and input. Went armed with many of your ideas to test, but it ended up much easier than I expected.
Ambient tempurature in Brisbane is around 29C (85F) and Battery was fine, has been used in another vehicle and pumping out lots of power.
I had already check and cleaned and sanded all the battery and earth connections.
At the moment the auto choke isnt working, so I tried just turning it over with the key and it turned over for forever. I couldn't get it to fail.
Volts were fine, 12.6v and 11.5 under cranking, and ammeter was all measuring correctly. interior light stayed on and all electrical worked.
That was quite annoying, as it wasn't giving me a chance to fault find.
I looked for the fusible link (without success) so I decided to start working from the battery outward.
The lesson I had forgotten, was that when you acquire a new project, you need to learn what the previous owner/s have done.
Didn't have to go too far, and at the first junction saw a taped up wire. Once undone looks like a spade connection had been used at some point, it was clearly just connecting, rusted and poorly wound together. (you can see in the second photo)
Once seperated I had a "permanent" no power issue to starter lights and everything else. (Except the horn still worked)
Just that one wire. So I'll replace the faulty wire and do a proper connection.
Again really appreciate all the thoughts and ideas, looks like a good supportive and knowledgable forum, THANKS :thumbsup: