[Healeys] BN2 overdrive driving me nuts

[Bob Spidell]

My BJ8 (Bentley) shop manual has an excellent diagnostic for analyzing overdrive problems.  I don't have the BN2 manual 
with me, but it should have a similar diagnostic test sequence.

Using the info in the BJ8 manual I was able to diagnose a problem with the O/D relay while on the road and effect a 
repair (open the relay and file the points).

Bob


On 9/4/2011 8:35 AM, George Haywood wrote:
> Josi,
> > From this statement it seems that you may have 2 problems (or more).
> 1.  The throttle control relay is adjusted wrong-that has been addressed.
>
> 2.  It sounds like since the overdrive does not work when the engine is
> running I think you are saying that you hear all the proper engagement noises
> but the OD doesn't mechanically/hydraulically engage.  This could be caused by
> many issues;  the solenoid adjustment may be wrong not letting the operating
> valve which is attached to the lever open enough, also the OD pump may not be
> working properly due to the cam not engaging the pump roler (have you had the
> OD and tranny separated just prior to this problem?)  The OD mechanism has to
> reach a certain pressure to cause it to engage and remain engaged and the
> pressure needs to be checked to diagnose these issues if all the electrical
> and mechanical (solenoid) functions are correct.  I know this is a pain but it
> has to be done so you'll have the enjoyment the OD.  They offer very little
> trouble once you get them correct--it's worth the hassle right now to get it
> right.
>
> Take care,
>
> George Haywood
> '65 bj8
>
>
>> Subject: [Healeys] BN2 overdrive driving me nuts
>> 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.
>> Josi Vicente Vargas
>> Musmi


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Bob Spidell           San Jose, CA            bspidell at comcast.net

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