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 Are you looking for a way to have an adjustable lumbar support
in your Miata MX5?
Are you looking for a way to have an adjustable lumbar support
in your Miata MX5?
It is actually very easy and inexpensive.
I have listed the source and prices for where I got my part below but there
are many sources locally as well.
All you have to do is:
1. Move the seat forward all the way
2. Unhook the shoulder belt for the plastic chip
3. Tilt the seat back fully forward
4. Look along the bottom of the back of the seat upholstery you will see what
looks like a seam running across the back from left to right. If you pull up
at one end you will find that this is actual a plastic tongue and groove
piece that you can separate.
 
5. Once you have the above T&G assembly open you will see a track that
holds a zipper on each side of the seat back. Follow the zipper down and pull
the zipper end pulls out where they are tucked into the seat plastics. Unzip
each side fully and lay the center section open over the head rest. Now you
can see inside the back of the seat.
6. Take the replacement blood pressure cuff you bought and slip it down
between the two lower springs as shown in the pic
with the fill hose on the bottom. ( I cut off the excess nylon cover on the
side that did not inflate but you could just fold it over)
7. Attach a length of vacuum hose (available at any auto parts store) to the
short hose on the blood pressure cuff. If you bought the one I suggested
there is a metal connector included to splice the two hoses together.
8. Route the black air hose behind the seat plastics to a convent location
along the seat side. Before you cut the hose be sure
to leave spare hose in case you change your mind on the location.
9. Attach the hose pump/valve to the open end of the hose, tighten the thumb
screw and test your blood pressure cuff to see if it holds air and if it is
in the location you desire. Adjust to your preferences.
10. Reassemble the seat back in the reverse order.
11. Enjoy your custom lumbar support ;^)
Total cost is about $ 17.00 per seat, I always do
both seats as sometimes I am the passenger.
I have done this mod in the last ten or so cars/trucks I have owned and it
has always worked well. After three lower back surgeries I know what works
for my back.
Sources on eBay:
NIBP Blood pressure cuff for adult $8.18 shipped
http://cgi.ebay.com/NIBP-cuff-Blood-...#ht_4615wt_744
RUBBER BULB FOR BLOOD PRESSURE UNIT WITH VALVE NEW $6.50 shipped
http://cgi.ebay.com/RUBBER-BULB-BLOO...#ht_1212wt_744
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