[Healeys] Overdrive inhibitor switch

Alan Seigrist healey.nut at gmail.com
Sat Jul 28 05:06:24 MDT 2007


Peter -

You can't get these switches new, but the early A type ODs are plenty
used about - I'd try your local Healey auto jumble such as the Healey
Factory for a good used switch.

The other option is to bypass this switch totally and block off the
hole.  If you do this just keep sure not to keep the car in OD below
1000 rpms in second gear if you do this.  You'll need to isolate the
second OD relay too.

Alan

On 7/28/07, Peter Linn <greylinn at ozemail.com.au> wrote:
> G'day list
>
> I have a problem! My BN1 is leaking gearbox oil through the overdrive
> inhibitor switch. I've already had the switch apart once, replaced the "O"
> ring on the plunger, and generally gummed up between the switch body and the
> case with Stag. It's been OK for a few months, but yesterday the overdrive
> refused to engage and, yes, low oil again.  There's a drip about every 2 min
> 10 sec from between the plastic inner body of the switch and the metal case,
> which I estimate means about 170ml in 24 hours, or over a litre in a week -
> and that's just standing in the garage! I couldn't find anyone who makes
> these
> switches - any ideas, on a new one or a permanent fix?
>
> Cheers
>
> Peter Linn
> Brisbane
> BN1 Ward Spl coupe
> _______________________________________________
> healey.nut at gmail.com
>
> Healeys at autox.team.net
> http://autox.team.net/mailman/listinfo/healeys
>


-- 
Alan

'52 A90
'53 BN1
'64 BJ8


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