Mart
Well-known member
You couldn't make it up.
I had been tinkering away on the 41 pickup getting the generator sorted. I've been testing the various generator combinations using my snap on timing light which has a tach function. Pos on the terminal on the coil, earth to engine, ht on a plug lead. been hooked up for a while ran the motor many times.
I have been wiring up the instruments and had connected up the fuel gauge to the sender. Turned the ignition on and there was a problem with the gauge. Temp gauge was ok, fuel gauge not ok. Noticed smoke through the gap between the hood and cowl. Switched the ignition off and nipped out and isolated the battery.
The wire from the ignition switch to the coil had fried. Completely melted the insulation. Nothing at all to do with the fuel gauge, that was just why I had the ignition on. Tested continuity from the hot lead on the coil and it was earthed. Only when I disconnected the timing light connector it suddenly wasn't earthed. I'd managed to connect the clip on the live and earth it to the coil body at the same time. What a ****. Stripped the harness out and took it in the house.
Went back out to the garage to get some tools to be met with a strong smell of fuel. Odd, I thought. I had replaced the needle valve and I just assumed it had suddenly let go, mentally telling myself to find a weaker spring for the fuel pump. I left it as I was sort of preoccupied with the harness problem. Went back out a little later and it was even worse, petrol all over the manifold.
WTF??
Ding! Light bulb moment. I had fitted a new fuel cap only last night. Bit chilly last night. Nice and warm today, though, eh? Loosened the cap to be met with a hissing, followed by a PWAH! as the cap came off.
Yup! a non vented cap, combined with a big temp rise.
Good job the letting the smoke out incident happened before the fuel everywhere incident. Could have been the other way round.
So, a couple of lessons learnt. So be smart and learn from my mistakes. Better than making them yourself.
Be careful people.
Mart.
I had been tinkering away on the 41 pickup getting the generator sorted. I've been testing the various generator combinations using my snap on timing light which has a tach function. Pos on the terminal on the coil, earth to engine, ht on a plug lead. been hooked up for a while ran the motor many times.
I have been wiring up the instruments and had connected up the fuel gauge to the sender. Turned the ignition on and there was a problem with the gauge. Temp gauge was ok, fuel gauge not ok. Noticed smoke through the gap between the hood and cowl. Switched the ignition off and nipped out and isolated the battery.
The wire from the ignition switch to the coil had fried. Completely melted the insulation. Nothing at all to do with the fuel gauge, that was just why I had the ignition on. Tested continuity from the hot lead on the coil and it was earthed. Only when I disconnected the timing light connector it suddenly wasn't earthed. I'd managed to connect the clip on the live and earth it to the coil body at the same time. What a ****. Stripped the harness out and took it in the house.
Went back out to the garage to get some tools to be met with a strong smell of fuel. Odd, I thought. I had replaced the needle valve and I just assumed it had suddenly let go, mentally telling myself to find a weaker spring for the fuel pump. I left it as I was sort of preoccupied with the harness problem. Went back out a little later and it was even worse, petrol all over the manifold.
WTF??
Ding! Light bulb moment. I had fitted a new fuel cap only last night. Bit chilly last night. Nice and warm today, though, eh? Loosened the cap to be met with a hissing, followed by a PWAH! as the cap came off.
Yup! a non vented cap, combined with a big temp rise.
Good job the letting the smoke out incident happened before the fuel everywhere incident. Could have been the other way round.
So, a couple of lessons learnt. So be smart and learn from my mistakes. Better than making them yourself.
Be careful people.
Mart.