Upgrade for reg/rec

As a fellow Tiger owner I suffered a dead Rectifier/Regulator last summer.I replaced it with a Mosfet one and the wiring harness which is available from Triumph.The new R/R runs much cooler than the old one which would get almost too hot to touch.I havent wired the R/R directly to the battery but may well do in the future.
My CB500 is fitted with a finned R/R that I used to carry as a spare on my VFR750 about eight years ago.The VFR and the Africa Twin that followed it both had computer fans fitted to the R/R to try and make them run a bit cooler.

Triumph late 955i and 1050 engines are well known fro charging problems
At least 50% of the dozens I seen are caused by the totally inadequate triumph loom  !

Wiring the stator direct to the rec/reg makes a big difference adding better + and - power lines to the output of the rec reg also helps a lot

Me I not that effused by the "it need a mosfet unit" but have found VFr800 units will work well

Re-siting the rec/reg away from the beck of the engine is not something I have done but is  also recommended !

Whatever rec/reg you use the power that is not required has to go somewhere if not turned to heat by the rec/reg it is reflected back to the stator and the triumph one is very poorly cooled by the oil  in fact keeping to oil over full helps prevent melted stators !

much better shindengen japan reg.
Not china !......... althoug mosfet is sayed.

https://www.shindengen.com/products/electro/motorcycle/reg/





mandahuevos cuñao.......

And so, finally, my regrec packed in.
Luckily, I have installed a voltage sentinel specifically to warn me of this issue.

Next, I'll have to replace it. Spare part ordered from my local Honda dealer - hopefully an upgraded version?

Anyways, on another Honda forum people are addressing the issue by replacing their failed Honda-regrecs with a replacement part from a small local manufacturer making so-called Schnabel-regrecs.

It's a danish supplier. Not chinese. Perhaps the link will be of use to you:
http://discteknik.dk/Schnabel/schnabel.htm

He makes bespoke systems for almost anything, in case you have an old Ariel or somesuch thing in need of electrical assistance.

stormbringer wrote:And so, finally, my regrec packed in.
Luckily, I have installed a voltage sentinel specifically to warn me of this issue.

Next, I'll have to replace it. Spare part ordered from my local Honda dealer - hopefully an upgraded version?

As I recall the 'better' version from Honda has some fins on it (the fins it probably should have had from the outset!).  My 'improved' one has been no problem since installation a number (can't remember how many) of years ago.  Since I installed it I've never noticed it getting particularly hot, so I took that as a good sign.

Anyways, on another Honda forum people are addressing the issue by replacing their failed Honda-regrecs with a replacement part from a small local manufacturer making so-called Schnabel-regrecs.

It's a danish supplier. Not chinese. Perhaps the link will be of use to you:
http://discteknik.dk/Schnabel/schnabel.htm

He makes bespoke systems for almost anything, in case you have an old Ariel or somesuch thing in need of electrical assistance.

TBH, for the CB500, almost any three-phase regulator rectifier, designed to work with permanent magnet alternators will be fine as long as it can stand the heat.  The good thing about a local supplier is it is easier to complain when things go wrong - this also encourages them to make a better product (so kind of a win-win situation).

My reg/rec has no fins, but fins....... mmmm.

Got me thinking now about using the microprocessor cooling fins from all the old defunct Pc's I have stripped out up in the attic, plus the mini cooling fans that mount on them work at 12v DC too.

Bit of thermal transfer paste and a spring clip mounting?

Dealer had this TourMax replacement part:

A bit disconcerting. It's not the OE part.
Or - if looking at it from another angle - a good thing. Honda's regrecs managed to earn little reputation for being good, so perhaps an aftermarket part can be considered a wise choice. Dunno.

I also had a talk with the DiscTeknik guy on the phone. I was asked intelligent questions like "Have you checked for connection to ground from the stator windings?" and more like that.
A proper motorbike electrics nerd. Those are always in short supply, so I think I'm going to do business with him in the future.

chromedome wrote:My reg/rec has no fins, but fins....... mmmm.

Got me thinking now about using the microprocessor cooling fins from all the old defunct Pc's I have stripped out up in the attic, plus the mini cooling fans that mount on them work at 12v DC too.

Bit of thermal transfer paste and a spring clip mounting?

This isn't such a bad idea, but I fear that the fins won't make a great thermal contact with the rubbery top of the 'old' regulator, so you might just be better with the fan only... but I doubt it will do any harm, so fire away and see what happens.

I don't know what the clearance under the side panel is, so you might have to 'modify' the heatsink a bit if it is too tall...

Alas, you were correct on the side panel clearance issue E.T, but was able to fit a small CPU fan in there. Ah well....

no modifications needed  R-R from electrexworld.
You will have R / R for your children and grandchildren .......and let it be known that I am not a shareholder of electrex .......

And it's just a good example ......