On Sun, 5 Jan 1997, Ron Pascal wrote:

> I have the same problem. I tried tightening the valve bolts but the leak is
> still there (although it's now much less). I'm going to try removing the
> heater valve, disassembling it and reassembling it with some sealant. Hope
> it works.
> 
> rp
> '88 GL Camper
(snip)
> 
> On Sat, 4 Jan 1997, Victor Wong wrote:
> 
> > HELP!  I pulled the never-used seat belts up from underneath the rear 
> > bench seat of my '88 GL today, and was horrified to find them wet with 
> > coolant.  I imagine there must be some kind of leak from the rear heat 
> > exchanger.  I seem to remember a thread along these lines a while ago, 
> > but I'm afraid I might not be able to find it in the archives.  Can 
> > someone shed some light on what needs to be done?
> > 
> 

   Well remove the 2 bolts at the joint between the valve and the
   heat. You will find a o-ring seal. Clean everything good. Reinstall
   but add silicone seal to the o-ring groove with the o-ring.

      This will fix it!
      Eric Zeno