[Healeys] Overdrive pressure or clutch slip Step 3, 4, 5 ad infinitum

[Jim Ryan]

God, this brings back memories of my BJ7.  Looking back I wish I gave up
the "hyperspace" feeling of the OD when it rarely worked and put in a 5
speed.

On Wed, May 15, 2024 at 8:11 PM <jvwojcik at comcast.net> wrote:

> Simon, I remember the demoralizing ache when I had to do these big jobs
> over and over. Figured it out eventually every time though, and you can’t
> be far from a solution given your systematic elimination of those gremlins.
> Good luck on this round, and happy miles to come. Jim
>
>
>
>
>
>
>
> *From:* Healeys <healeys-bounces at autox.team.net> *On Behalf Of *Simon
> Lachlan via Healeys
> *Sent:* Wednesday, May 15, 2024 4:56 PM
> *Cc:* 'Healeys' <healeys at autox.team.net>
> *Subject:* [Healeys] Overdrive pressure or clutch slip Step 3, 4, 5 ad
> infinitum
>
>
>
> Hi, Thanks for the input. Frankly, if my Healey was alive, I’d take it to
> the vet and have it put down!
>
> I did think that swapping the solenoid and relay plus adjusting the
> throttle switch had fixed it. The car passed a drive around, up and down
> with harsh acceleration up hills.
>
> So, I put the interior back….quite a task in itself. Took it out for a
> pint…back to square one. Slipping.
>
> Stripped it out again and tried for a rational/thorough test….
>
>    1. Set off with the OD’s operating valve out and the nut replaced by
>    the gauge. As expected a reading of zero on gauge with OD switched on &
>    off. Ran around, up and down for 35 minutes. Quite a hot day. No slippage.
>    2. Put the operating valve back. 520+/-psi at the gauge while OD is
>    switched on or off. (Oil now warm). OD seems/sounds as if it’s “easing in”
>    rather slowly/almost too smoothly with, maybe, slight slip.
>    Fear/presumption being that slippage would get worse as engine got even
>    warmer. Transition looks normal on rev counter. Disengages normally though
>    I need to adjust the throttle switch a bit more.
>    3. Inconclusive, except I think I can rule out the clutch at the
>    flywheel. But it leaves a question hanging over the OD which, considering
>    the (Professional) work it’s had recently, should NOT be playing up.
>    4. Time to throw in the towel (read oily rag?). Car is up on ramp
>    waiting for me to remove the box.. That is unless one of you guys can come
>    up with a miracle cure overnight! I’m just sick of frigging around and not
>    knowing precisely what’s wrong. I want to take the car over to N.Ireland
>    for a family occasion in July so have decided to do the brute force work
>    myself and have the rest done by experts.
>
> Just thought I’d let you know! Will report back once the box is out and
> once the OD has been looked at.
>
> Simon
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-- 

Jim Ryan

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