Author Topic: How hot ?  (Read 212 times)

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How hot ?
« on: 08 February 2013, 07:19:08 pm »
Hi all
 As some of you might know I've been having some problems with my temperature gauge and I've gone through the whole electrical side of things and all seems ok but the gauge still rests half way between the C . Since I've owned Terence I've always thought to myself that the engine never really gets up to temperature ,I've put new thermostat,sender, and fresh coolant . Yesterday I went to meet another  series owner to buy some bits who is  a Hgv mechanic for the council,he also mentioned that my engine wasn't hot enough as you can hold your hand on the top hose for as long as you like, and I can leave it ticking over for hours and it will not get any hotter. Could it be the thermostat is buggered even though it's new, even if it's jammed open I would expect the engine to get hotter than it does .also the engine never comes of the choke cause it's not getting hot enough  ???

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Re: How hot ?
« Reply #1 on: 08 February 2013, 08:16:31 pm »
I can hold the top hose on mine without any nasty side affects other than a warm hand.  You can test the thermostat in boiling water to see if it opens and closes.

You could remove the fan and leave it ticking over stood; if the gauge starts to creep up, take it for a drive and see if the air movement through the rad drops it again.  If, whilst being stood for ages and the gauge doesn't move, **** yourself and take it for a spin anyway to cool it down; heater on etc etc.  :smilewide:

Mine has a muff fitted and the gauge only really gets excited  on a good run and more so when working harder than normal ie. OD engaged.

'Fresh' coolant won't make the engine run hotter (it does what is says on the tin) but obviously is required as antifreeze............

Have you got an normal water pump or heavy duty one??
Oh I've changed!
1982 GT 300(tdi) 88'' - 'NIAB'
1982 V8 109 'No Name' ( as yet, and in pieces)

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Re: How hot ?
« Reply #2 on: 08 February 2013, 09:36:00 pm »
It's in everyday use the thermostat is new and been tested yesterday it done a 50 mile trip and the heat never rose at all , it is an ex military 2.25 I don't know if they had different pumps did they ?i it just seems to only get Luke warm,I might try blocking off half the grill and see what difference that makes

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Re: How hot ?
« Reply #3 on: 08 February 2013, 09:53:12 pm »
Running up to temp coolant out of the head should. Be about 90c, would quickly burn if held for long.
This time of year, even with a working thermostat, there is enough cooling via the bypass to keep it cool