[Healeys] BN2 overdrive driving me nuts

Rich Chrysler richchrysler at quickclic.net
Sun Sep 4 11:00:20 MDT 2011


Jose, 

The throttle linkage arm is pulled down as you accelerate. See picture.

Rich

-----Original Message-----
From: healeys-bounces at autox.team.net [mailto:healeys-bounces at autox.team.net]
On Behalf Of Jose Vicente Vargas
Sent: 2011-09-04 12:00
To: Austin Healey
Cc: healeys at autox.team.net
Subject: Re: [Healeys] BN2 overdrive driving me nuts

The arm of the throtle switch is travelling up when I accelarate.... This is
wrong ?

Jose



Sent from my iPad


On Sep 4, 2011, at 8:56 AM, Austin Healey <pajtamuvek at gmail.com> wrote:

> ...OR just like me, You have assembled the throttle linkage incorrectly,
and
> it is pushing the arm of the switch up instead of pulling it down.
>
> Gergo
>
>
> 2011/9/4 Per Schoerner <healeyguy at bredband.net>
>
>> Josi
>> It seems to me that your cut out switch is incorrectly adjusted. The
>> purpose of this switch is to keep the overdrive engaged when you flip the
>> dashboard switch to the off position, provided the accelerator pedal is
not
>> used. Then when you accelerate the overdrive should disengage. This is to
>> protect the overdrive from being disengaged while the wheels are driving
the
>> engine.
>> The cut out switch is the thing with two wires attached that is operated
by
>> the throttle. To adjust it, slacken the screw that holds the lever to the
>> axle. The axle has a cam that breaks the current when the throttle pedal
is
>> depressed. Adjust it accordingly, e.g. when the throttle pedal is
depressed
>> to about 20% the current should be cut off. Be careful, I have come
across
>> one cut out switch that was incorrectly adjusted and fried the wiring
>> harness, so use an ohmmeter when you do this.
>> It's your point 4 that triggered this conclusion. Not using the
accelerator
>> the overdrive should engage when the gear lever is in 3rd/4th and the
>> dashboard switch is turned on, and stay there engaged when you turn the
>> dashboard switch off.
>>
>> Per in Sweden
>>
>> Josi Vicente Vargas skrev 2011-09-04 05:01:
>>
>>> 1. mechanichaly it is fine. If I get under the car and pull the lever
the
>>> overdrive engages fine.
>>>
>>> 2. Do the cables (white with purple and white with
>>> green) that go in the throtle switch have an specific order ?
>>> Which one goes
>>> on top and which one goes on bottom ?
>>>
>>> 3. If I do the test with a lamp as
>>> described on the manual I get the exact opposite results of the
manual...
>>> when
>>> the light shoul go off it tuns on and when it should be on it turns off.
>>>
>>> 4.
>>> having the car on stands with the engine off if I engage 4th or 3 th
gear,
>>> when accelarate a little and I turn on the overdrive switch on the
>>> dashboard I
>>> can hear the solenoid engaging and I see the lever moving.
>>>
>>> 5. Same as point #
>>> 4 but with the engine running and the damm overdrive will not work.
>>>
>>> 6. the
>>> solenoid is new, the throtle switch is new, the relay is new.
>>>
>>> 7. Is there a
>>> way to test the overdrive relay ?
>>>
>>> All ideas are welcomed including the ones
>>> like insuring the car and burning it or throwing it down a cliff
>>>
>>> Thanks
>>>
>>> a
>>> very dissapointed Jose ....
>>>
>>>
>>>
>>> Josi Vicente Vargas
>>> Musmi
>>>
>>>
>>> Tel. (571) 321
>>> 3740
>>> Cel. (57) 311 288 3401
>>> Skype: jovivago
>>>
>>>
>>> www.musme.net
>>>
>>>
>>> Bogota,
>>> Colombia
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