[Healeys] Overdrive wiring question

Bob Spidell bspidell at comcast.net
Sun Sep 3 11:47:45 MDT 2017


I'm too lazy to drag out the schematic, but Steve's comment begs the 
question--to me, at least--is the throttle 'kickdown' switch wired 
bass-ackwards?

Also, since most of us are 'of a generation,' tip a bottle of your 
favorite brew to Walter Becker today.

Bob


On 9/3/2017 8:35 AM, BJ8Healeys wrote:
>
> If a set of the relay points were somehow in mechanical contact 
> regardless of the energizing or not of the relay coil, then you would 
> get 12 volts at relay terminal C2 without the dash switch being on, 
> and the symptoms you describe.  It's not quite clear to me, however, 
> why the throttle switch stops the symptoms with the throttle switch open.
>
> Remove the white wires from relay terminal C1 and the white/green ones 
> from terminal C2 and check for continuity between those terminals.  If 
> you have continuity, then the relay is bad.
>
> Steve Byers
>
> HBJ8L/36666
>
> BJ8 Registry
>
> AHCA Delegate at Large
>
> Havelock, NC
>
> *From:*Healeys [mailto:healeys-bounces at autox.team.net] *On Behalf Of 
> *Bruce Steele
> *Sent:* Sunday, September 03, 2017 10:39 AM
> *To:* 'Healey List'
> *Subject:* Re: [Healeys] Overdrive wiring question
>
> A couple of other factors:
>
> 1.The dash switch is not defective; it tests fine.
>
> 2.Removing the ground from the OD relay (terminal W2) had no effect; 
> i.e., the solenoid still engaged when the lever was moved to the 3^rd 
> /4^th position, indicating to me that the relay was not engaged and 
> thus holding the relay points closed.
>
> Bruce Steele
>
> Brea, CA
>
> 1960 BN7
>
> *From:* Bruce Steele [mailto:healeybruce at roadrunner.com]
> *Sent:* Saturday, September 02, 2017 9:50 PM
> *To:* 'Healey List' <healeys at autox.team.net>
> *Subject:* Overdrive wiring question
>
> After installing the new wiring harness, I encountered a puzzling 
> situation.  With the engine off and the ignition on, the OD solenoid 
> would engage when the shift lever engaged the transmission switch 
> irrespective of the position of the dash switch.  That is, the 
> solenoid would engage whether the dash switch was on or off.  Further, 
> if I depressed the accelerator, thus opening the throttle position 
> switch, the solenoid would NOT engage under the same conditions.  
> Hence, it seems that either the OD relay was engaged by the W1 
> terminal being energized or somehow the C2 terminal was energized.  
> Unfortunately I caused a short in the throttle switch damaging my 
> harness before I could trace this.  Any thoughts?
>
> Bruce Steele
>
> Brea, CA
>
> 1960 BN7
>
> ------------------------------------------------------------------------

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