[Healeys] More Transmission/overdrive questions

[Williams, Allen]

I've had my car since 1974 and have also used 20-50 Castrol or similar.
Allen
Sent: Friday, August 10, 2012 9:10 AM
To: warthodson at aol.com
Cc: Williams, Allen; healeys at autox.team.net
Subject: Re: [Healeys] More Transmission/overdrive questions

What fluid (oil) are you using? Despite the manual's recommendation to use
melted and drawn whale blubber I think a
multi-vis (20W-50) or synthetic works best (I use MT-90).  As for sealant, I
use Permatex Aviation Form-A-Gasket or a
good silicone depending on my mood.

I haven't done much work on O/Ds, but the slow response sounds like wear in
the accumulator and/or pump.  The first
recommendation is usually to check the pressure with a good gauge.

Bob



On 8/10/2012 6:20 AM, warthodson at aol.com wrote:
> I had my overdrive & transmission rebuilt by Quantum Mechanics
approxamately
> 4-5 years ago. Initially, all was well, however recently the overdrive has
> developed a leak between the brake ring & either the rear housing or the
main
> housing. I cannot tell if there are gaskets between these parts. There is
> evidence of some kind of sealant. I have verified that the nuts are tight
> around these components. As far as I can tell none of the gasket kits
> available for the overdrive include a gasket for these two joints. I know I
> could make a gasket but I would like to know if any supplier sells this
gasket
> either separately or in a kit.  What is the best sealant for this
> application?
> Second issue. Originally, the overdrive shifted into overdrive nice &
crisply.
> I drive about 6000-8000 miles per year. I keep the transmission topped up
with
> the appropriate oil. Recently, the shift into overdrive has become
sluggish.
> Initially, when the car is at ambient temp. (80 degrees) the shift can take
as
> long as 2-3 seconds. After it is warmed up it takes about 1-2 seconds to
> engage. I have verified that when engaged an appropriately sized pin can be
> inserted into the lever & alignment hole on the side of the O.D. Do you
have
> any thoughts on what may be causing this?
> Gary Hodson
> _______________________________________________
>
>
>


--
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Bob Spidell           San Jose, CA            bspidell at comcast.net