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Testing Thermostat
Posted: Sun Apr 03, 2005 9:28 pm
by fweddy
If I put the thermostat in a cup of boiling water it should open? correct?
I've got three that will do nothing - I thought I should check before I throw them all out and get a new one.
Posted: Sun Apr 03, 2005 9:52 pm
by Alec
Hello Fweddy,
yes, but I would put them in a pan on the stove rather than a cup.
Fill a pan with water and bring it to the boil with the thermostat in it. It should open long before the water gets to boiling point, better still if you have a thermometer so you can check the temperature at which it fully opens.
Alec
Posted: Mon Apr 04, 2005 11:31 am
by Cam
Alecs method is the best (of course
) but it should still open in a cup.
I usually use a pyrex measuring jug. Put the stat in then fill the jug with boiling water from the kettle. You can then see it open. It opens quite a lot so you can't miss it!
Sounds like yours might be duff ones.
Posted: Mon Apr 04, 2005 12:12 pm
by 57traveller
Before dunking and boiling I've usually found it useful to tie a length of string to the thermostat "frame" which improves handling capabilities afterwards and keeps skin away from boiling water and/or hot metal!
Posted: Mon Apr 04, 2005 9:27 pm
by fweddy
Fill a pan with water and bring it to the boil with the thermostat in it.
That sounds too much like cooking
I usually use a pyrex measuring jug. Put the stat in then fill the jug with boiling water from the kettle. You can then see it open. It opens quite a lot so you can't miss it!
Sounds exactly like what I did but replaced the measuring jug with a cup. Seem funny all three are shot, nut they all have some age on them. One was jammed open and I've freed it and it no longer works, one was from a marina head which I had lying around, the other was from another 1098 engine which again hasn't been running for years.
I shall order one in - might as well have a good one since the head is not reconditioned etc.
Posted: Tue Apr 05, 2005 11:07 am
by Cam
I would get a couple (or 3) if you are ordering as they are quite cheap and it's handy to have a few 'in-stock' Also get a few gaskets as well. Saves trouble when you NEED them!
Posted: Wed Apr 06, 2005 7:06 am
by fweddy
I'm pretty ok for sourcing those sort of consumable parts. I can get bits at trade from the local Mazda agent. (my father used to work with him when they were Holden agents so as mates Dad alwas got trade then when I started going with dad to get bits the favor passed on to me.) He had the right thermostat on the shelf I got for $10 (£3.77). I can get any gaskets etc from him overnight and he's just a 10 min drive from here.