How hot is too hot?
Discussion
Took the cerb out for a blast this afternoon after picking it up from Jason and on the way back the temp gauge sat at 90, then passed 95 and then hovered around 100...!
It all felt fine but it did make me panic a little. I was stuck in a little traffic but not for very long.
In the paperwork from the previous owner it indicates it has had the cooling chip mod, so I didn't expect it to show so high on the gauge on the dials today.
Should I be worried? When should I panic? What should it sit at?
Thanks!
James
It all felt fine but it did make me panic a little. I was stuck in a little traffic but not for very long.
In the paperwork from the previous owner it indicates it has had the cooling chip mod, so I didn't expect it to show so high on the gauge on the dials today.
Should I be worried? When should I panic? What should it sit at?
Thanks!
James
I've been stuck in traffic on a swelteringly hot day before and seen the temp go up to about 108. Although it never missed a beat I did start to worry...
What worked for me was to open the transmission tunnel vents to let some heat out. Also turn the interior heater on full. Doing this dropped the temp by about 10degs, although I was sweating like Gerry McCann in a game of cluedo by the end of it!
What worked for me was to open the transmission tunnel vents to let some heat out. Also turn the interior heater on full. Doing this dropped the temp by about 10degs, although I was sweating like Gerry McCann in a game of cluedo by the end of it!
Edited by Rochester TVR on Friday 25th July 07:13
The gauges are renowned for being inaccurate, the almost always over read.
To put you mind at rest plug the laptop into the ECU and see what the actual temp is, mine goes between 90 and 100 in traffic on a hot day, that equates to about 87-97 according to the ECU but gauges vary massively from car to car.
To put you mind at rest plug the laptop into the ECU and see what the actual temp is, mine goes between 90 and 100 in traffic on a hot day, that equates to about 87-97 according to the ECU but gauges vary massively from car to car.
Rochester TVR said:
I've been stuck in traffic on a swelteringly hot day before and seen the temp go up to about 108. Although it never missed a beat I did start to worry...
What worked for me was to [open the transmission tunnel vents to let some heat out. Also turn the interior heater on full. Doing this dropped the temp by about 10degs, although I was sweating like Gerry McCann in a game of cluedo by the end of it!
Good grief ! Where the hell are these ??? What worked for me was to [open the transmission tunnel vents to let some heat out. Also turn the interior heater on full. Doing this dropped the temp by about 10degs, although I was sweating like Gerry McCann in a game of cluedo by the end of it!
OP, see if you can get the TVR ECU diagnostics hooked up coz Temp gauges often don't show the cooling jacket temp.
Also check on the route your capillary pipe takes on its way to the guage. If this has moved around the outer water pipe it could be closer than wanted to the exhaust system and give a false reading.
HTH
Mr Cerbera said:
Rochester TVR said:
I've been stuck in traffic on a swelteringly hot day before and seen the temp go up to about 108. Although it never missed a beat I did start to worry...
What worked for me was to [open the transmission tunnel vents to let some heat out. Also turn the interior heater on full. Doing this dropped the temp by about 10degs, although I was sweating like Gerry McCann in a game of cluedo by the end of it!
Good grief ! Where the hell are these ??? What worked for me was to [open the transmission tunnel vents to let some heat out. Also turn the interior heater on full. Doing this dropped the temp by about 10degs, although I was sweating like Gerry McCann in a game of cluedo by the end of it!
Mine had an switch & the larger Rad, used to show 105 @ the gauge. Its OK having a fan on & larger Rad but I always felt( not proved ) that the water pump deliverd a slow flow on tick over, so I was contemplating fitting an inline pump to switch on when at idle in the jams etc.
I got the idea from a thread on here ,I think it was A1rak's? I bought( still have) a auxilary pump from a Mercedes sprinter van to pump the coolant @ idle, I chose that as its not too powerful to cause pressure problems but works OK for the Aux heating system on the Merc.
Have no idea if it would have worked as mine sold before I had free time to fit it.
I got the idea from a thread on here ,I think it was A1rak's? I bought( still have) a auxilary pump from a Mercedes sprinter van to pump the coolant @ idle, I chose that as its not too powerful to cause pressure problems but works OK for the Aux heating system on the Merc.
Have no idea if it would have worked as mine sold before I had free time to fit it.
First fan should kick in around 85 second fan shortly after that, you should see the gauge drop once both fans running. I installed an ally rad and that made a huge difference if you want piece of mind in traffic !
Obviously in true TVR form every car is different but you should still see a drop in temps when both fans cut in
Obviously in true TVR form every car is different but you should still see a drop in temps when both fans cut in
I fitted a Pierberg ewp and a tinyCWA micro controller while ago.
Coolant temperature issues have been completely eliminated.
So much so that in April I fitted an oil/water heat exchanger that uses coolant to regulate oil temperatures.
Car is now as cool as it looks
Coolant temperature issues have been completely eliminated.
So much so that in April I fitted an oil/water heat exchanger that uses coolant to regulate oil temperatures.
Car is now as cool as it looks
Mine gets to around 105 on the gauge the other day. It's perfectly normal but agreed you do start to worry. I know mine used to read about 5deg over but I've not checked it lately.
A trick I do while sitting in slow moving traffic which works... Rather than slowly crawling along try and allow a gap to appear in front then give it a quick blip up to the car in front. The sudden rush of air expels under bonnet hot air and helps cool the engine up to 10 degrees at times also gets the water pump working for a brief moment.
Something worth doing, which i will be doing on mine this week, is to seal the gaps between the rad and body of the car so that as the fans work it pulls air through from the front of the car rather than round the sides of the rad which will be just recirculating the hot under bonnet air back through the rad.
A trick I do while sitting in slow moving traffic which works... Rather than slowly crawling along try and allow a gap to appear in front then give it a quick blip up to the car in front. The sudden rush of air expels under bonnet hot air and helps cool the engine up to 10 degrees at times also gets the water pump working for a brief moment.
Something worth doing, which i will be doing on mine this week, is to seal the gaps between the rad and body of the car so that as the fans work it pulls air through from the front of the car rather than round the sides of the rad which will be just recirculating the hot under bonnet air back through the rad.
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