Thanks ken,
Just wondered and if after working on the coolant lines I ran  into a problem with trapped air in my 88westy GL .
Laters,

Dennis Jowell
Scotch Hollow Farm
Newbury, Vermont 

> On Jul 21, 2015, at 8:31 AM, kenneth wilford (Van-Again) <kenwilfy@comcast.net> wrote:
> 
> It is a bleeder for the core, although I have never had to use it.  I guess if your rear core wasn't getting hot you could try to bleed some air out there.
> 
> Ken
> 
>> On Tue, Jul 21, 2015 at 6:39 AM, Dennis Jowell <dennisjowell@gmail.com> wrote:
>> Does anyone know what that small white cap on the rear heater core does? 1988 Westy GL.
>> I am working on changing coolant lines. I think it may be a breather for the heat core. My Bentley has no information .
>> 
>> Dennis Jowell
>> Scotch Hollow Farm
>> Newbury, Vermont
> 
> 
> 
> -- 
> Thanks,
> Ken Wilford
> John 3:16
> www.vanagain.com