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Display Mesage #110519


Relocating that darn rectifier
Written by scott.butler51 on 2/9/2012 at 11:52 pm

I have a '89 model and I wanted to upgrade the regulator/rectifier AND move it
to a cooler location. I had previously used the Shindegen FH012AA unit on my
Yamaha XVZ12 with great results. It is modern technology and rated for up to 50
amps. I felt my stock R/R while the bike was running and it was always hot.
Not a good thing for long life. The FH012AA runs cool and doesn't even need
airflow for cooling if load is kept around 25 amps.

I decided to mount the new R/R back on front of the trunk tub close to the fuel
pump. This put it between the alternator Stator wires on the engine and the
battery. I ran new heavier guage wires from the stator to the R/R and then onto
the battery. I included a 30 amp fuse on the output to the battery.

The new location is alot cooler and out of the road spray, the R/R is wired up
with waterproof connectors and dielectric grease is used on all connections to
prevent future corrosion. The Shindengen R/R regulates the output at 14.3 volts
at any speed above idle. It is very stable and used on alot of permanent magnet
alternator Japanese motorcycles. I got mine on Ebay and found the correct
connectors/pins online also.

--- In ipcrc@yahoogroups.com, "Ting" <tradewinds1964@...> wrote:
>
> Hey Yall. Saw an old 2009 post about relocating the rectifier to a cooler
spot. Goldwing Fred added thoughts about a thicker gauge wire and then the
subject slipped to post reaching smartphones. That's fine, so easily distracted.
Oh look. Squirrel.
>
> Anyshoe, I was thinking about adding extra wire and moving my rectifier to a
nice cooler place. Not having problems, but trying preventive measures like I've
seen on other post. I have a nice big heatsink from an old computer with plenty
of fins and just begging to become a part of Scotia. The possible spots I was
thinking are:
>
> Above the radiator.
> Somewhere under the headlight.
> Under the bottom of the bike in some nook.
>
> I'm figuring adding 18 gauge wire to extend to any place on the bike that will
catch a heavy flow of air. I have read some post where riders have mounted it in
the fender to catch moving air from the tire. Pretty sure we don't have
clearance, but the creative thought is there.
>
> Opinions? Thoughts? Disbeliefs?
>
>
> Ting
> Atlanta, GA
> '90 Red PC
> Glen Scotia(pronounced Sko-sha)
>

Message Thread for message #110519

tradewinds1964
2/9/2012, 12:42 pm
Relocating that darn rectifier
Hey Yall. Saw an old 2009 post about relocating the rectifier to a cooler spot. Goldwing Fred added thoughts about a thicker gauge wire and then the subject slipped to post reaching smartphones. That's fine, so easily distracted. Oh look. Squ

    revconprince
    2/9/2012, 01:37 pm
    Relocating that darn rectifier
    How about under the crash bar, right in front of the lower vent opening. Moving it to that location will probably allow you to use the original coil wiring. Just don't steal too much air flow from the stator. Of course the newer MOSFET units

      yankeesmuggler
      2/9/2012, 03:17 pm
      Relocating that darn rectifier
      I'd be worried about water on the R/R with it mounted this low on the bike. I've ridden through some pretty deep puddles and there's no way it stayed dry in there. Tim Davies Seneca Falls, NY Yankee Smuggler II 1998 Sent from

        israel_96gtp
        2/9/2012, 04:06 pm
        Relocating that darn rectifier
        Umm, yeah, about that...? sorry for the scuba excursion many moons ago at the ESRide... ________________________________ From: Tim Davies <

    gibinmich
    2/9/2012, 02:44 pm
    Relocating that darn rectifier
    I've thought that something as simple as a small hose funneling air from the front of the fairing to the rectifier would be just the ticket. But on the other hand, I still have the original rectifier and have had no issues....yet. --- In

      wynndungey
      2/9/2012, 05:59 pm
      Relocating that darn rectifier
      I like that idea. On my 89, I've replaced it twice. Once at about 30,000 and the second time about a year ago at 100,000+. Figure I got my money's worth on the second one. --- In

        mrpacrat
        2/9/2012, 07:22 pm
        Relocating that darn rectifier
        Maybe you can rig up an old CPU fan on top of it? --- In ipcrc@yahoogroups.com, "wynndungey" <softsoundserv

          mrpacrat
          2/9/2012, 08:07 pm
          Relocating that darn rectifier
          Another thought (and I have never had problems with it, so I have not even looked at it). If it mounts flat, maybe raising it up with washers (shims) would allow air flow around it?

            obijuanak
            2/9/2012, 08:14 pm
            Relocating that darn rectifier
            On Feb 9, 2012, at 11:07 , mrpacrat wrote: > Another thought (and I have never had problems with it, so I have not even looked at it). > > If it mounts flat, maybe raising it up with washers (shims) would allow air flow

    mostlyhondas
    2/9/2012, 11:50 pm
    Relocating that darn rectifier
    Honda engineered it to use the best heat sink on the bike. (frame) I think the best thing to do with it is to make sure it's in good thermal contact with the frame. On Thu, 09 Feb 2012 20:07:00 -0000 "mrpacrat" <

      mrpacrat
      2/10/2012, 02:26 am
      Relocating that darn rectifier
      I was just kinda stabbing in the dark - have not had a problem with mine yet so I have not really looked closely at it. But I will keep this in mind if I do! > Honda engineered it to use the best heat sink on the bike. (frame) I > t

        tradewinds1964
        2/10/2012, 04:19 am
        Relocating that darn rectifier
        You guys are awesome. That's why I love a good discussion. Oh squirrel. OK. Yes Tim, it has to stay dry, very important. I also read about using some tubing to funnel air, and the results were less than stellar. Yes, the frame of the bike

          attitudehats
          2/10/2012, 06:36 am
          Relocating that darn rectifier
          Every once in a while I find myself starting to think about adding longer cooling fins to the R/R stumpy fins. I even envision making up something out of Silver, the best conductor of heat(and electricity) out of all the metals we know. I kno

      pcnz2004
      2/10/2012, 07:35 am
      Relocating that darn rectifier
      I agree with the concept of using the frame as the heatsink and would suggest retaining the regulator / rectifier in its present location, but would recommend removing it, coating the back of it with "heat transfer compound" (from your

        wynndungey
        2/10/2012, 07:47 am
        Relocating that darn rectifier
        I did just that with my last R/R change. Didn't have it on long enough to tell if it helped. (It's still working, but only has about 7,000 miles on it.) It would be good to have a thermometer bolted to the unit and compare both configurations

    scott.butler51
    2/9/2012, 11:52 pm
    Relocating that darn rectifier
    I have a '89 model and I wanted to upgrade the regulator/rectifier AND move it to a cooler location. I had previously used the Shindegen FH012AA unit on my Yamaha XVZ12 with great results. It is modern technology and rated for up to 50 amps.

    tyronewildman
    2/11/2012, 01:28 pm
    Relocating that darn rectifier
    My solution was----See my post at Message #105053 De Tyrone, GA--Hotlanta area --- In ipcrc@yahoogroups.com