'87 80 1.8 Heater problem

[Phil Payne]

> > A lot of thermostats are coming now with a small hole for letting
> > coolant circulate just a tad for a smooth warmup, that sort of
thing.
> > If your replacement is lacking, you might want to drill a small
hole,
> > pencil-tip sized roughly.  From what I've read, the hole goes up
> > high, to let any air that might come up to the t-stat get by.  One
> > article I saw said the hole is right near the outer edge of the
> > t-stat.

> Before you drill an hole in your new thermostat check to see if it
already
> has a channel.
> Many thermostats have a slight channel in the diaphragm seat to
provide the
> same purpose as the hole.

Which is the reason the thermostat has to be fitted in the correct
orientation.

--
  Phil Payne
  http://www.isham-research.com/quattro
  +44 7785 302 803
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