(The circuit breaker and rings terminals for the battery leads will be supplied with the kit.
Sources of supply are shown, but feel free to shop around. PC800 alternator maximum output is 360W or about 30A.
Plus mating connectors and minimum bending radius for wires. The following specifications have been cobbled together, but are certainly not guaranteed. Tip: Click on any image to open a larger version in a new browser tab.įabricated mounting bracket, SH847 R/R and Honda R/R.ĭespite considerable hunting, I have not been able to find a comprehensive specification sheet for the SH847 from Shindengen. Ideally the cooling fins would be oriented from front to back to provide better airflow, but there isn’t sufficient space to rotate the R/R with the connectors and cables attached. Engine heat and exhaust from the radiator ductwork are not problematic. The weathertight connectors face aft to reduce exposure to road spray. It mounts securely to the frame within the structure of the fairing protector, though it does not use the frame as a heatsink. There is a splendid place to hide it if you haven’t tucked an air horn or other farkle in the right fairing protector. (This is what authors call “foreshadowing”.) The plan is that this should be the last R/R and stator that Winglet needs. (Then there is thermal cycling causing physical damage to the stator and …. In my judgement the voltage (About 70VAC open cicuit, IIRC.) is not sufficient to significantly shorten the life of the stator and the lower temperature should increase the life.
High voltage is related to insulation breakdown, but so is elevated temperature. The series R/R design allows the stator voltage to rise, but reduces the load and the heat produced by the stator. At least the engine doesn’t need to be removed from the frame like ‘oldWing’s.) (Been there, done both repeatedly, didn’t get the shirt. The second involves opening the crankcase and is, at best, a nuisance. The stock R/R and, to a lesser extent, the stator are considered (by owners) to be consumable parts. The LED conversion greatly reduces the electrical load and shifts more responsibility to the regulator. That is not what Mother Honda had in mind when the charging system was designed. Having replaced all of the lights on Winglet, a 1997 Honda Pacific Coast (PC800), with LEDs there is plenty of power available for farkles: driving lights, heated lederhosen, Bushtec trailer, …. Towing a trailer over The Mighty Mac up to The Very Boring Rally in Duluth, MN, without a charging system makes it seem worthwhile. The SH847 is a series regulator and operates by disconnecting the stator windings when the battery is fully charged. The excess power is dissipated as heat by the R/R. The stock regulator is a shunt design which operates by short circuiting the stator windings when the battery is fully charged. The R/R performs two functions: it rectifies the three-phase AC output from the stator to provide DC and it regulates the output to avoid overcharging the battery.
He did excellent research and produced a wonderful writeup of how to install a series regulator rectifier (R/R) on a Honda Pacific Coast.
Results of various tests performed after installation are included.Įditor’s Note: The following information comes entirely from fellow PCer Seth.
This page describes installation of a Shindengen SH847 series regulator/rectifier (R/R) on a 1997 Honda Pacific Coast (PC800).