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Where to put Electrex R/R on pre 80s models

  • Thread starter Thread starter ZacharyB
  • Start date Start date
Z

ZacharyB

Guest
I tried a search for "77 78 79 Electrex" but got just about every post in the forum due to everyone's signatures... including mine!

I have heard the unit can get hot mounted underneath the battery box, where the regulator is. How about under the left sidecover, where the rectifier is located? It's a one bolt mount but it would be cooler. I suppose I could even drill a hole for a second bolt.
 
Mine is under the battery box. If you are conserned you could mount a computer fan to blow air on it, or mount the rec/reg up front in the air stream
 
Both mine are under the battery box.

They may get hot, but they are designed for it, hence the fins.

Have there been any cases of failure due to excess heat?
 
brit7.11 said:
Both mine are under the battery box.

They may get hot, but they are designed for it, hence the fins.

Have there been any cases of failure due to excess heat?
Click to expand...

Excess heat is the main reason they fail...either through excessive current draw and/or not enough air going over the unit to pull away heat.

Hap
 
Hap Call said:
brit7.11 said:
Both mine are under the battery box.

They may get hot, but they are designed for it, hence the fins.

Have there been any cases of failure due to excess heat?
Click to expand...

Excess heat is the main reason they fail...either through excessive current draw and/or not enough air going over the unit to pull away heat.

Hap
Click to expand...

By "they" Hap do you mean RR's in general, or Electrex ones in particular?

I've never heard of an Electrex one failing, just wondered if they did.
 
brit7.11 said:
Hap Call said:
brit7.11 said:
Both mine are under the battery box.

They may get hot, but they are designed for it, hence the fins.

Have there been any cases of failure due to excess heat?
Click to expand...

Excess heat is the main reason they fail...either through excessive current draw and/or not enough air going over the unit to pull away heat.

Hap
Click to expand...

By "they" Hap do you mean RR's in general, or Electrex ones in particular?

I've never heard of an Electrex one failing, just wondered if they did.
Click to expand...

That is true of almost all electrical equipment. Whan happens is that the componets are over heated until they fail or the insulation system fails thus causing the componets to fail in turn. You can cause a Electrex R/R to fail by pulling too much amperage through it but it is more difficult to kill than a stock R/R. As far as motors go, they fail most of the time due to bearings going bad, unless they were undersized for the application in which case they would draw too much current and again it would be the heat from the excess current that would kill them.

The Electrex unit is a much better unit just for the fact that it has a larger heatsink to pull heat away from the internal componets. I'm sure they are also using inulation systems that are much better then those found in the early '80s.

Hap
 
I mounted a Honda reg/rec under my battery box years ago with no problems. Hell, there are even threaded holes that line up! Too easy! :D
 
The electrex R/R for my 79 750 is mounted to the right side of the battery box (under the right side cover).

Earl
 
No offence Hap :wink: , but I knew all that anyway. I'm sure some other readers found it interesting. The answer I was struggling to get was whether or not Electrex specifically had a record of failures. In my experience they do not. Therefore, although extra cooling can never do any harm, I don't think there need be any special concern over placement of the unit.
 
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