TR4/4A Two quick OD TR4a wiring questions

[Tom_Lynch]

Hi guys - happy 4th to everyone.

A couple quick questions if I may;

1) Can I pick up my feed from the white circuit to the relay from the fuse box rather than the ignition switch?

2) Can I pick up by NW (brown / white) circuit to the relay from the control box or does it have to be the Amp meter?

Thanks!

 

[HerronScott]

Happy 4th to you as well!

Sounds like you are looking to make your own overdrive harness rather than buying it? From what I can see in the wiring diagram for a TR4A there shouldn't be any difference. The TR3's wiring diagram lists both locations as options.

Scott

 

[Tom_Lynch]

Hi Scott - yes,making one because, well, I just wanted the practice of making it.

A fuse in the brown/white circuit is a good idea if I remember your/Randall's and other guys coaching, yes?

Thanks!

 

[HerronScott]

Tom,

Right, Randall and Geo have posted on this before (and others I'm sure).

Here's the most recent thread on it:

Fusing overdrive solenoid circuit

Scott

 

[DNK]

Tom, you should know there is no such thing on this site as a quick question

 

[Tom_Lynch]

Tom, you should know there is no such thing on this site as a quick question

And that is one of the things we love about it.

Happy 4th Don.

 

[DNK]

Enjoy, and be safe!

 

[Geo Hahn]

Since you're fashioning your harness and also enjoying hits from 'The Best of Randall' you might consider the benefit of adding a diode to that circuit.

Adding a Diode to the OD Relay