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Re: [Fot] A type overdrive problem

To: Yahoo Thompson <tylerpthompson@yahoo.com>, FOT List <fot@autox.team.net>
Subject: Re: [Fot] A type overdrive problem
From: Bud Rolofson <levilevi@comcast.net>
Date: Wed, 3 Oct 2012 12:20:13 -0600
Delivered-to: fot-archive@autox.team.net
Delivered-to: fot@autox.team.net
References: <331AEE4B-9553-4E86-95BD-F7F8471FFC19@comcast.net> <58EE04CF-45E1-400B-A1BE-A8FD818D8BF8@yahoo.com>
Yes there's a relay and it clicks when the OD selector switch is  
thrown. It passes all the voltage tests for the brown, the white, the  
yellow purple wires. I get voltage through it to the yellow purple  
wire right to the solenoid. I suspected it too since it was the last  
thing I did to the OD circuit but that was over a year ago and it  
worked up until now.


Bud



Bud Rolofson

71TR6 CC57365 (Good 6)
71 Spitfire MK IV Race Car #3
66TR4A CTC57529 (The Project)
71F-250 Camper Special (Triumph Support Vehicle)
Z-50A Hardly Davidson 1977 Honda Mini-Trail Bike (Triumph Pit Bike)







On Oct 3, 2012, at 12:00 PM, Yahoo wrote:

> Isn't there a relay between the column and the solenoid?
>
> Ty
>
> Sent from my iPhone
>
> '63 Triumph TR4 DP Racecar
> '62 Triumph TR4 RestoMod (Project)
> ++++
>
>
> On Oct 3, 2012, at 9:50 AM, Bud Rolofson <levilevi@comcast.net> wrote:
>
>> The OD on my TR6 stopped working so I did the trouble shooting  
>> process
>> in Dan Master's electrical manual and found I have voltage all  
>> through
>> the circuit all the way to the bullet that connects the (yellow with
>> purple stripe) wire to the solenoid. The voltage can be switched on
>> and off with the OD selector switch on the column so everything works
>> up to the point where it connects to the solenoid. But the solenoid
>> doesn't engage.
>>
>> So the solenoid is bad right? What has me stumped is that the  
>> solenoid
>> will operate if I hook it directly to an extra battery that I have.
>> Why would it work with 12 volts directly but not 12 volts through the
>> circuit? I even swapped out another solenoid from another A type OD
>> and that one does exactly the same thing. Works with a direct hookup
>> to a battery but not with the circuit. I checked to see if the
>> solenoid is grounded and it has continuity according to my meter.
>>
>> With the solenoid hooked to the system when I engage the OD switch  
>> the
>> voltage goes as far as the bullet but doesn't register at the
>> solenoid. It's as if the solenoid "clogs" the flow of the voltage.
>>
>> What could be causing the solenoids to work with a direct battery
>> (voltage measured at 12.11) but not with the circuit (voltage  
>> measured
>> at 12.75)?
>>
>> I'm stumped. How can both solenoids work in one situation and not the
>> other?
>>
>> Thanks
>> Bud Rolofson
>>
>>
>> 71TR6 CC57365 (Good 6)
>> 71 Spitfire MK IV Race Car #3
>> 66TR4A CTC57529 (The Project)
>> 71F-250 Camper Special (Triumph Support Vehicle)
>> Z-50A Hardly Davidson 1977 Honda Mini-Trail Bike (Triumph Pit Bike)
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