"Julian" <jps@[EMAIL PROTECTED]
> wrote in message
news:r0wOi.68641$j16.45139@[EMAIL PROTECTED]
>
> "Steve" <no@[EMAIL PROTECTED]
> wrote in message
> news:n5-dnThudIjlwpfanZ2dnUVZ_smnnZ2d@[EMAIL PROTECTED]
>> Julian wrote:
>>
>>> The gearbox is an A727 behind a 440 motor in a 1973 Jensen
Interceptor.
>>>
>>> My box has developed an annoying problem. When the box is cold I can't
>>> get any forward gears although reverse works perfectly. If I hold it
on
>>> the brakes and give it a few revs in reverse for a minute to warm the
>>> oil up it suddenly starts working normally, whereupon it then works
>>> perfectly for the rest of the day.
>>>
>>> The fluid is new, (and clean) the filter is new and the oil level is
OK.
>>> When the gearbox is working normally it behaves perfectly without a
hint
>>> of any problem.
>>>
>>> I've studied the schematic and 'elements in use table' in the Chrysler
>>> workshop manual and have decided that the problem must be connected
with
>>> the rear clutch, probably sticking. I can't see any problems with the
>>> valve block, because in drive and stationary, oil is ****ted straight
>>> through the manual valve (which can't stick because it connected to
the
>>> selector lever) through to the rear clutch. Oil pressure must be fine
>>> because it drops into reverse perfectly.
>>>
>>> Would anyone care to comment on my diagnosis, is there anything that
can
>>> be done without removing the box and has anyone rebuilt the gearbox
>>> themselves?
Just a quick follow up, I've had the box rebuilt by the local Mopar
specialist, he's also fitted a ****ft improver kit, 4 pinion gear set and
we
had the converter cut open, cleaned/inspected and re-welded - should be
fine
now for my stroker motor, hopefully all the stuff will arrive from the
States next week and the block is now +30thou.
Julian.
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