47 Pickup Voltage Regulator Question

dorvedahl47pu

dorvedahl47pu

Senior Member
Good afternoon,

Does a firewall mounted voltage regulator need to be insulated from the firewall?

I'm working on a 47 pickup that had an aftermarket voltage regulator installed and it was mounted directly to the firewall, no rubber insulators like my other 47s. What problems would this create if any?

Thanks.
 
No, I don't think so. But you say your "other 47s" were insulated. The voltage regulator is a self-contained switch that I've always thought of as internally insulated current director. So, there should be no need to insulate it from the rest of the car through the firewall.

Maybe better minds can teach both of us!!
 
Rubber mounts on regulators are a sound deadening device, as regulators will buzz at times. For these, there will be a grounding method for the regulator body to the firewall.
 
The regulator must be grounded. The original regulator had a tab for a ground wire. If it’s an aftermarket regulator with no tab do not use the original rubber idolaters. Just screw it to the firewall.
 
You must log in or register to reply here.
Back
Top