[Mgs] you know you need a proper stat when...

[mgbob at juno.com]

Aaron,   If yours is an early MGB with its temperature probe in the upper
radiator tank, being a bit low on coolant can affect the reading as the probe
must be in the liquid.   Later cars have the electric sender in the head, so
being a pint low is unlikely to affect the reading on the gauge.Bob

---------- Original Message ----------
From: Aaron Whiteman <awhitema at panix.com>
To: Paul Hunt <paul.hunt1 at blueyonder.co.uk>
Cc: MG Mailing List <mgs at autox.team.net>
Subject: Re: [Mgs] you know you need a proper stat when...
Date: Mon, 28 Mar 2011 19:40:06 -0700

On Mar 28, 2011, at 12:58 AM, Paul Hunt wrote:

> 160 and 180 are about 1/4" apart on the temp gauge.  If your gauge never or
barely got off the end-stop then the stat that is in is faulty, pure and
simple.  I agree that changing to a 'summer' stat is pointless, in most MGBs
the stat will be fully open anyway regardless of its value.

Eep!  So it's not the thermostat after all.

I pulled it tonight and it says "88*" on the side.  Since it's a german
brand,
I assumed 88C, which is 190F.  Using the pan-o-water testing method, I
verified it opened at 86C and closed correctly too.

I noted that when I put the coolant back in, it wasn't quite reaching the top
of the core, so I added some more.  Maybe a pint, probably less.  Would this
be enough to cause erratic readings?  I'll be doing the "drive some, stop and
check temp, drive some more, repeat" process soon enough.  Glad I have that
infrared thermometer!

--
Aaron
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