[Healeys] Intermittent OD

[Bob Spidell]

If by 'switch' you mean the 1-2-R lockout switch on the gearbox 'remote' 
shifter it could need adjusting or replacing. To test, switch O/D on at 
the dash and move the shift to 3rd or 4th and hold hard to the right. 
Check operation of the solenoid (or with a voltmeter). It's a simple, 
spring-loaded SPST (single-pole single-throw) contacter, but its depth 
needs to be set with washers. If holding the lever hard right corrects 
the problem then you can try thinner spacers, but it's not a bad idea to 
replace it on principle; esp. if it's original or very old. If the 
solenoid works when it gets power it's not the problem (though they do 
fail).

I've had a couple of the dash switches fail intermittently--esp. 
aftermarket ones--but you won't get power at the lockout switch if it's 
not making contact. Another possibility is the relay on the firewall; 
I've had them go intermittent. It's just a set of points on a cam; I had 
one go intermittent and I opened it up in a hotel room and filed the 
points and it worked for a couple thousand miles (think I still have it 
as a spare).



On 11/8/2022 1:23 PM, Richard Antal via Healeys wrote:
> Gents,
> The solenoid and switch preceding it are twenty years old on my BJ8. 
> In the past few months it operated unpredictably. I've pulled the 
> tranny cover and demonstrated that the solenoid was failing to engage 
> though power was coming to the switch. Before I could test to see if 
> current was coming out of the switch to the solenoid, the later 
> suddenly engaged. I was unable to reproduce failure of the solenoid to 
> engage. The intermittent failure must be either due to the switch or 
> the solenoid itself. Which is most likely to be the culprit? TIA.
>   rich antal
>
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