Revisiting my SH847 regulator/rectifier mount.

And by the way @DEcosse - that SH847 gets hot HOT just at idle with the side cover off.

I know I saw (and was sold) on that thermal image comparison you showed back when - I'm just reporting from my fingertips as FYI. Not saying it means anything - maybe just adjusting expectations.

Still a fantastic investment if it saves ever having to go into the stator.
 

Going to start her up and get a reading with my laser thermometer.
 
Confirms what my finger tips told me.

Thank you.

I understand the stock one is worse.
 
Joesmoe said:
... I understand the stock one is worse.
Click to expand...

No, the stock one is likely cooler - 'old-school' SCR Shunt Regulators ran REALLY hot; MOSFET Shunt Regulators (OEM R3) actually run relatively cool.
(180F is not what I would say "hot" - way cooler than your engine cases in comparison - consider your coolant is probably over 200F most of the time)

The temp comparison pictures I had shown earlier of primary interest were of the stator - the STATOR runs much cooler with a Series R/R and that is fundamentally why we want it.
(the Series R/R itself is probably cooler than a SCR R/R, but hotter than a MOSFET Shunt R/R)
 
Last edited:

Great! If you're happy, I'm happy. Thanks for the follow up.
 
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