- Joined
- Sep 12, 2015
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- 7,643
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- Location
- SW Ontario
- My Car
- 1971 Mustang Mach 1, M code, 4 speed.
Question for Midlife...……. or anyone else with extensive electrical knowledge.
As most know, I recently installed a set of Bosch aftermarket gauges in my Mach 1. I'm absolutely loving having the Temp, Oil and Volts right there in front of me, well to the right side actually!!
On the return trip from the Ford Mustang Memories car show and the longest run my car has been on since installing said gauges, and whilst waiting at the border, I noticed that the Volt gauge was reading quite a bit higher than the usual 14 volts, engine running. It went up to just above 15V. The temp gauge was a tad higher than normal also, but that was not surprising sitting on a hot day. My feeling is that the 14 gauge wire I used to connect the volt gauge might be a bit too light and it was over heating causing the higher than usual reading.
As my car does not have any ACC terminal at the fuse block, I had connected to the wire I installed for my Rocketman tach conversion, basically because it was there and an available switched 12v wire. Normally, I don't see this higher reading. My voltage regulator is new(ish) so that's should not be the reason although possible I guess. I'm sure that the very hot weather has an impact on many things, this being one of them.
So, what's the opinion as to cause?
Geoff.
As most know, I recently installed a set of Bosch aftermarket gauges in my Mach 1. I'm absolutely loving having the Temp, Oil and Volts right there in front of me, well to the right side actually!!
On the return trip from the Ford Mustang Memories car show and the longest run my car has been on since installing said gauges, and whilst waiting at the border, I noticed that the Volt gauge was reading quite a bit higher than the usual 14 volts, engine running. It went up to just above 15V. The temp gauge was a tad higher than normal also, but that was not surprising sitting on a hot day. My feeling is that the 14 gauge wire I used to connect the volt gauge might be a bit too light and it was over heating causing the higher than usual reading.
As my car does not have any ACC terminal at the fuse block, I had connected to the wire I installed for my Rocketman tach conversion, basically because it was there and an available switched 12v wire. Normally, I don't see this higher reading. My voltage regulator is new(ish) so that's should not be the reason although possible I guess. I'm sure that the very hot weather has an impact on many things, this being one of them.
So, what's the opinion as to cause?
Geoff.