Voltage regulator on engine side?

[Floog]

3 years ago I 'smoked' a Ducati inside the firewall. The cause was a loose ring shank terminal on the C to L circuit. Though the smoke in the cockpit got my attention, there was no evidence of overheating. The regulator and wiring looked like new. Weird. Recently, I added a 40 amp alternator in parallel with the existing Rotax system. It's now a 'backup' to the external alternator. With all the extra power, I'm considering a seat warmer and A/C (:

[jiott]

I also had a Ducati fail, mounted on the cockpit side of the firewall, with no toxic fumes.

[Rodney]

Also had the Ducatti regulator inside the cockpit fail. No toxic fumes I was aware of.

In doing some research on the Vans RV-12 forum, ( they mount their regulators on the engine side of the firewall). I came to the conclusion that heat may be a factor contributing to failures.

I replaced my regulator with one from NAPA and mounted a 5 inch dia. 12 volt cooling fan about an inch away from the regulator. Fan wired into master switch.

That was a little over a year ago and so far, no problems

Rodney

[Esser]

I ended up putting my regulator right near the firewall but aft so it is in the cockpit.

[Av8r3400]

I replaced my regulator with one from NAPA and mounted a 5 inch dia. 12 volt cooling fan about an inch away from the regulator. Fan wired into master switch.

What type of regulator did you use from NAPA?

[Rodney]

The NAPA part number is SME 7068102

My store did not stock it, but ordered it in, in about three or four days.

The new regulator has five tabs instead of the six on the Ducatti.
Wiring sequence is as follows

Regulator. = Wire

B. = White
AC. = Yellow
AC = Yellow
L = Orange/Green
IGW = Orange/Blue

The extra white wire is tied off and not used

Voltage output at cruise is 14.7 volts

Regards
Rodney

[Floog]

Cost of NAPA reg?

[Av8r3400]

Looks like about $90 for the John Deere lawnmower (NAPA) regulator.