<VV> Issues with Hi Torque Starter

[Jack Kean]

When I purchased my 68 140 convertible in 2004, it came with one of the 
Hi Torque starters (sold by Clark's and Corvair Underground). I've had 
no issues with it until recently. The initial engagement of the solenoid 
became sporadic over the summer. It did not matter if it was when I used 
the ignition switch, or an external starter button. I would often have 
to energize it a number of times before the solenoid would engage and 
the starter would start to turn. This past weekend, it stop energizing 
completely. Fortunately, the car was in the garage and I left it there. 
I've not done any analysis at this point, except that it occurs when I 
use either the ignition switch or an external starter button.

Does anyone have any experience with these starters? Do you know how to 
get parts for them, or are they simply remove and replace units when 
they start to have problems?

thanks in advance.
jack kean
Arlington, Texas
68 140/4spd convertible