Dan,
If the "bolt" is on the top of the overdrive, it is probably the plug which
covers the actuating valve. If it is under the solenoid bracket on the left
side of the unit, then it is the oil pump non-return valve. Either one
could be a cause of insufficient oil pressure.
HTH,
Peter Schauss
> -----Original Message-----
> From: healeys-bounces+schauss=worldnet.att.net@autox.team.net
> [mailto:healeys-bounces+schauss=worldnet.att.net@autox.team.net] On Behalf
> Of Corning, Dan (D.C.)
> Sent: Sunday, September 14, 2008 7:15 PM
> To: healeys@autox.team.net
> Subject: [Healeys] Overdrive Question
>
> Taking a close look at my overdrive unit, I noticed a washer that didn't
> look right. I'm an overdrive novice but I think the washer makes a
> difference. It's the copper washer for the bolt that holds pressure on
> a spring and ball. (It's item number 91 on page 60 of the current Moss
> catalog)
>
> The inside diameter of the washer is too small to sit down on the
> shoulder of the bolt head and the outside diameter is too big to sit
> inside the recessed area of the OD housing. I'm pretty sure this will
> cause less pressure on the spring and ball assembly. Because my car
> hasn't run in over a decade, I have no way to test it's operation.
>
> Can anyone tell me what that bolt - spring - ball and valve assembly
> does and how it will affect the overdrive? Also, does anyone know where
> I can get a new washer or what the dimensions of the washer is so I can
> make one.
>
> Thanks,
>
> Dan Corning
> 1962 BT7
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