[Rovernet] P6B manual transmission conversion parts

garrett bourque gbbourque at gmail.com
Wed Jun 3 09:36:47 EDT 2015


Hello Kent, Fletcher, Geoff, Nelson, et al,
  Happy spring and pre RoverAmerica week!  I last made one of the Rover
2000 pedal boxes work on a 3500S that I do not recall the whole process.
If the adaptor I made for Kent Kinard is not mounted in a car and is
available for measuring, then please use it.  I made my car work the first
time I did it, did one other complete restoration/trans conversion for
another customer and made this adaptor/spacer/ slave cylinder mounting
plate for Kent Kinard.
    You do use a 2000 pedal box.  There are some left to right alignment
issues with clearance for mounting the cylinders on the firewall.  The
brake master needs to be moved a little bit towards the center line of the
car in order to fit the clutch master in place and avoid hitting the air
diaphragm on the end of the brake master cylinder on one side and the inner
fender on the other.  The hole that the pushrods pass through needs to be
enlarged so the pushrods have enough space to go in the direction that they
need to, without hitting the sides of the opening, between the cylinders
and the pedals.
   The clutch pushrod has to be lengthened and possibly bent in order to
make a connection between the clutch pedal and the newly located clutch
cylinder.  This all takes some measuring, figuring and fabrication, but
once in place, mine has held up for 20 years, so far!
   I used 2 reservoirs, rather then finding one with 2 outlets, but that
does not really matter.  Some clutch masters have a reservoir built right
into them.
    Make sure that you add a bronze bushing to the back center of the
crankshaft.
    Get a flywheel that has good starter ring gear teeth on it.  Get bolts
that are the right shape to hold the flywheel on.  Add a brake light switch
from a 70s/80s Volvo 240 on a little angle bracket in the engine
compartment.  They are durable and easily accessible / easy to adjust for
correct operation.
    Some people that have driven my car complain that the brake pedal is
too close to the gas pedal.  I never fixed it, but if it was not to your
liking, simply heat the shaft of the brake pedal with a torch and bend it
to a spot that gives your feet enough space, keeping the pedal pad
vertical.
  Parts: Get a clutch cylinder from a 2000.  Get a slave, pressure plate,
disc, starter and transmission from a Triumph TR8 or a Rover SD1.  These
cars used all the same stuff.  The trans is called an LT77.  You will need
the little crossmember that goes with the trans.  It will need to be
shortened to fit in the 3500s tunnel.  Believe it or not, your drive shaft
from the 3500s is the right length and does not have to be changed!  You
will likely want to cut the shift lever shorter and add a boot and knob of
your liking.  The auto shift lever assembly can be unbolted.  The hole in
the tunnel and center console have to be made larger in order to be in the
correct location for the trans and allow the shift pattern to be reached.
In this trans, first and reverse are very close together, so beware!
   The exhaust comes very close to the starter and the header pipe on one
side will need to be re bent, for more clearance.
 Good luck with the conversion.
   I will be attending the Rover weekend in Fitchburg, with my '70
3500S...with newly fitted Triplex glass roof, courtesy of Kent Kinard and
shipping courtesy of a friend doing a cross country road trip!  See you
there, Garrett Bourque

On Wed, Jun 3, 2015 at 7:41 AM, Kent Kinard via Rovernet <
rovernet at rovernet.org> wrote:

> Hi Geff,
> I have spoken with Nelson about this conversion.  I guess I'll have to
> write it all down for him.   The pedal box he needs is the garden variety
> 2000TC/SC box.  I can supply one of those, but the master cylinder adapter
> is only available from Garrett Bourque and he may not be willing to make
> any more.  Garrett, where are you? I think Nelson would make his own
> adapter if he knew what one looked like.  Right now, Greg G. has the
> adapter Garrett made for me.  I told Nelson that we will take pictures and
> measurements, but I feel like I need permission from Garrett since the
> adapter is his design.  In addition to the M/C adapter which mounts both
> clutch and brake (dual line) MC's, the pushrods must be lengthened.
>
> As far as I know there is only one LHD 3500S four speed in the US.  It is
> an Italian market car imported privately and the owner is (or was) a member
> of RCCC.  Even if the Euro 3500S had been imported in quantity, those parts
> would not help Nelson because he is working on an NAS 3500S automatic with
> dual line brakes.
>
> Rovereversengineeredly,
> Kent K.
>
>
> GeffMcCarthy via Rovernet wrote:
>
>> Nelson O'Reilly has trouble posting here, so :
>>
>> He wants to put a 5p in his P6B and needs the pedal mounting box.  I
>> verified that no manual transmission were officially imported to NADA,
>> even
>> tho' some LHD were produced. Is there a box out there somewhere for him?
>> Thanks!!
>>
>>
>> AvMedSafe
>>
>> Geoffrey W. McCarthy MD MBA DipAvMed
>>
>> 677 NW Melinda Ave Portland OR USA 97210
>>
>> 503-241-8468(h) 503-799-3809 (mobile)
>>
>>
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