Nice to have company.....NOT!!    The first gen Ody has been a great car
(with  this and a recent inexplicable door leak as exceptions).

I was thinking of cutting the wire and using a small bolt with 2 washers, a
lock washer and a nut  to clamp it back together, just slightly extended. A
soldered or crimped extension would not hold or could distort the wire. I
would say that it only needs to be 1/16 to 1/8" longer.

Lar

The service manual (p22-47) indicates that the adjustment for this is a
clip. Well, what  the manual was apparently calling "an adjustment" was the
spring clip that secures the cable to bracket that also holds the heater
control valve. This bracket keeps a set relationship between the cable
housing and the valve but moving the cable housing does nothing to change
the "throw" of the cable itself.  Some adjustment!

What I ended up doing was this... The cable terminates in a little spool of
cable with cable bent right at the spool to evenly distribute the cable's
pushing force without unraveling the spool.  Kind of like this....

                           -------------------O

I used needle nose pliers to unravel the spool  a little (clockwise) which
in effect lengthens the cable a bit. Most importantly, I got rid of the old
bend and made a new one just a little further down the cable (maybe 3/32")
where the new spool starts.  I wasn't sure how brittle the cable would be as
cables are usually made of spring steel but I had no problems. With the
cable now just a little longer, the heater lever now fully closes the heater
control valve and I no longer have heat coming out of the vents when the
heater lever is set all the way to the left (cool).

I hope that this helps somebody else.

Lar