Heater Control Valve

[Dave Massey <105671.471@compuserve.com>]

Message text written by INTERNET:IkeLevine@aol.com
>I need to change out the heater control valve and my question is ........

Do I need to drain the coolant out of the system?
<

What car?  With the TR series (TR2-6) you don't have to drain but you may
loose a few drops when you take it off.  But since it is located very high
on the system, draining is not necessary.  The same is probably true for
the Spitfire/GT6 cars but I am less familiar with them.

We don't want to talk about the TR7/8 heater valves.

Dave