If all you have is a drip here and there, why not try some "bars leak" before pulling heads?  My understanding is that the gaskets can "seep" for a long time before they need to be replaced, and you can prolong this time by stopping the seepage (for example with bars leak).

-Wes
'83 1.9l westy
'84 1.9l gl

On Sun, Aug 05, 2007 at 09:38:18AM -0700, Brendan Slevin wrote:
> Ok, so I think Totoro may need a head gasket soon. I've noticed a drip of
> coolant here and there and when I try to find the source it seems as
> though it's the driver's side head.  This is the side that can be done
> easily (!) with the enigne in, right?  Anything I should be ready to
> change at the same time?  How long do I have until it absolutley must be
> done?  I have no coolant in the oil and no hydrocarbons in the coolant and
> no apparent loss of performance.  Hmm. . .
>
> Brendan
> 84 GL Totoro
> Bend, Oregon
>