Norman,
I do have your excellent book, and I have used it many
times to solve other problems. I am also using it as
a reference with this problem.
Thank you for making this book available to Healey
owners.
Max
--- Shona Nock <sjnnock@sbcglobal.com> wrote:
> Max ... Do you have my book " TECH TALK " ?? most
> problems with A/H
> overdrives is adjustment ... Norman Nock
>
>
>
>
> On Jan 21, 2008, at 1:11 PM, Maurice Maxwell wrote:
>
> > My overdrive unit will not engage and has an
> operating
> > pressure of about 320 pounds pressure at 1000 rpm
> on
> > the tach. Removal of the accumulator spring and
> > placing two washers as a ship under the spring
> > increased the pressure to about 380 lb pressure at
> > 1000 rpm and about 400 lb at 1500 rpm. There was
> no
> > trash on either operating valve ball or the pump
> > non-return valve. The oil appeared clean and
> there
> > was no trash in the filter screen. What could be
> the
> > most likely cause of the low pressure?
> >
> > Thanks in advance,
> > Max
> > 1961 BT7
> >
> >
> >
> >
> >
>
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