I second the rear heater core, Just had that problem with mine.

On Tue, Sep 8, 2015 at 12:58 PM, Roy Nicholl <RNicholl@nbnet.nb.ca> wrote:

> All,
>
> A couple of weeks ago, I replaced the water pump in the Hyena ('88 Westy
> WBX).  The past few days, I've thought I smelled a faint trace of coolant
> in the van itself.  I checked the hoses, the radiator, the front and rear
> heaters (best I could using a camera probe and mirrors without removing all
> the plastic) and have found no leaks.    I checked the bleeder on the
> radiator, no leak.   I have seen no noticeable drop in coolant level in the
> reservoir.
>
> Any ideas on where I should explore next?
>
> I have also noted that my temperature gauge is now running a little lower
> (from top half to bottom half of LED ... about a needles width).   I plan
> to open both heater cores wide (they are partially shutdown at the moment),
> park with the nose in the air, run it for a few moments, then open then
> bleed the system again just to ensure I do not have an air bubble.
>
> Roy
>

--
Mm