Ernest Posted July 2, 2018 Report Share Posted July 2, 2018 Hi all Last week I enjoyed a 80 mile round trip in the 6. The car ran well when the road was clear but as soon as I got into slow moving traffic the temp. rose. On the way back the gauge went into the red even though we only got caught in some slow-moving traffic at a couple of sets of lights. The car had a new radiator fitted about 200 miles ago by a very reputable TR specialist and it has a supplementary fan that was working Although I had the fan on continuously when in traffic it did not bring the temperature down. When running the temp returned to about normal. The water level was fine and I only drove up to about 60 miles per hours during the run. Any idea on some simple 'fix' that I can do to make the cooling more efficient for the time being. Could it be the thermostat not operating correctly? Best Wishes Ernest Quote Link to post Share on other sites
Mk2 Chopper Posted July 2, 2018 Report Share Posted July 2, 2018 Are you sure the supplementary fan is 'pushing' air through the rad not sucking it and working against the flow of the stock fan? The thermostat would normally go open, and over cool when it stops working. It sounds like the system is working in terms of once you are moving, so it's just figuring out why it doesn't stationary? Quote Link to post Share on other sites
RogerH Posted July 2, 2018 Report Share Posted July 2, 2018 Hi Ernest, as per the previous post - check that the fan is sending the airflow the correct way. If it cools when moving the leccy fan should do equally well when standing still. Roger Quote Link to post Share on other sites
stallie Posted July 2, 2018 Report Share Posted July 2, 2018 If you undo the drain plug on the RHS of the engine, does it drain... or is it blocked like mine was. Quote Link to post Share on other sites
Tim D. Posted July 2, 2018 Report Share Posted July 2, 2018 Definitely check the fan is pushing air in the correct direction. I inadvertently swapped the electrical connections on the fan on my Lotus elan.. It is amazing how pushing hot air from the engine and manifold through the radiate warms the car up quickly :-) Quote Link to post Share on other sites
Ernest Posted July 2, 2018 Author Report Share Posted July 2, 2018 As eve,r than\ks all for this range of helpful advice - i shall start by checking the fan's operation. Best Wishes Ernest Quote Link to post Share on other sites
astontr6 Posted July 3, 2018 Report Share Posted July 3, 2018 If you undo the drain plug on the RHS of the engine, does it drain... or is it blocked like mine was. If blocked or your system was not flushed out with Rad Flush before fitting that new rad or your car has lived in a hard water area the block can accumulate a lot of crud in the form of orange lime scale. Because I do I only use Halfords distilled water with 25 % anti-freeze in my system has worked for me for years! Bruce, Quote Link to post Share on other sites
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