had17462 Posted March 31, 2019 Report Share Posted March 31, 2019 Hi all ,took the tr6 out and noticed the bottom of the rad was cold after 50 miles ,electric fan cutting in fine no boiling over but while in traffic the temp does rise quickly, what's the best way to check if the pump is working . Ali radiator thermo switch in bottom of the rad, heater gets hot. Nick Quote Link to post Share on other sites
jerrytr5 Posted April 2, 2019 Report Share Posted April 2, 2019 That seems to have everyone stumped Nick. I guess they are so simple that if the pulley is turning, then it must be pumping. You could take it off and check that the impellor is still attached and hasn't corroded away. But if the fan cuts in and the sensor is in the bottom of the rad, then clearly it's not cold. Jerry Quote Link to post Share on other sites
Hamish Posted April 3, 2019 Report Share Posted April 3, 2019 You could try swapping the top hose for clear pipe. Only temporary for a visual test . Hi unless you “pimp your ride” with Killerglass hoses. H Quote Link to post Share on other sites
stillp Posted April 3, 2019 Report Share Posted April 3, 2019 I'd have thought that the thermostat is more likely to fail than the water pump. Pete Quote Link to post Share on other sites
HSM Posted April 3, 2019 Report Share Posted April 3, 2019 If coolant flows through heater matrix ( heater on hot & not blocked ) and blows out hot air pump o.k. Harvey S. Maitland Quote Link to post Share on other sites
ntc Posted April 3, 2019 Report Share Posted April 3, 2019 You have air in the system, purge it with the cap off and you will see the water flow. Quote Link to post Share on other sites
had17462 Posted April 3, 2019 Author Report Share Posted April 3, 2019 Thanks guys ,I thought I had air in the system but I drove 20 plus miles and the hoses wasn't pressurised but will again Nick Quote Link to post Share on other sites
ianc Posted April 3, 2019 Report Share Posted April 3, 2019 If you jack up the front of the car a few inches and run the engine with the heater valve fully open, this will assist the purging of any air. Ian Cornish Quote Link to post Share on other sites
stillp Posted April 3, 2019 Report Share Posted April 3, 2019 Or park it facing uphill! Pete Quote Link to post Share on other sites
ntc Posted April 3, 2019 Report Share Posted April 3, 2019 Both the above might/will not work.I posted how to do this the best way a long time ago,use search. Quote Link to post Share on other sites
Z320 Posted April 3, 2019 Report Share Posted April 3, 2019 Sorry folks, you NEED about one liter of air in the system. There is no need the bleed the system in any special way. Please do not overfill the system. Ciao/ Cheers, Marco Quote Link to post Share on other sites
had17462 Posted April 3, 2019 Author Report Share Posted April 3, 2019 I've found my old original radiator so I will fit this and report back ,thanks again. Nick Quote Link to post Share on other sites
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