Warming Up & Cooling Down Queries

[humpy]

I think I may be overcompensating so I thought I'd ask the experts...

a). What is the recommended warm up procedure for a Noble 2.5?
b). How long [miles or time] does it normally take to warm up?
c). If the fans kick in - does it mean it's warm enough?
d). Does it damage the turbos to let it idle too long when warming up?
e). If I have been 'pushing it' and then need to stop, how long should I let the car run for to cool down?

Thanks
H

[twerlie]

humpy said:

I think I may be overcompensating so I thought I'd ask the experts...

a). What is the recommended warm up procedure for a Noble 2.5?
b). How long [miles or time] does it normally take to warm up?
c). If the fans kick in - does it mean it's warm enough?
d). Does it damage the turbos to let it idle too long when warming up?
e). If I have been 'pushing it' and then need to stop, how long should I let the car run for to cool down?

Thanks
H

a). Drive nicely until about 85+ degrees
b). About 5 Minutes
c). Oh Yes
d). Nope
e). About 30 seconds

All answers are in my opintion only!

[paulcundy]

twerlie said:

humpy said:

I think I may be overcompensating so I thought I'd ask the experts...

a). What is the recommended warm up procedure for a Noble 2.5?
b). How long [miles or time] does it normally take to warm up?
c). If the fans kick in - does it mean it's warm enough?
d). Does it damage the turbos to let it idle too long when warming up?
e). If I have been 'pushing it' and then need to stop, how long should I let the car run for to cool down?

Thanks
H

a). Drive nicely until about 85+ degrees
b). About 5 Minutes
c). Oh Yes
d). Nope
e). About 30 seconds

All answers are in my opintion only!

double or treble e) or "until the turbos stop glowing red".

[robp]

humpy said:

I think I may be overcompensating so I thought I'd ask the experts...

a). What is the recommended warm up procedure for a Noble 2.5?
b). How long [miles or time] does it normally take to warm up?
c). If the fans kick in - does it mean it's warm enough?
d). Does it damage the turbos to let it idle too long when warming up?
e). If I have been 'pushing it' and then need to stop, how long should I let the car run for to cool down?

Thanks
H

Humpy
a) switch engine on and drive
b)keep below(ish) 3000rpm till water temp is up to normal (approx 92C). After that fine to 'open up' -but remember if you have cold tyres and brakes...
c)if fans kick-in that means you're beyond warming-up; you're well into the cooling cycle
d)best way to warm an engine is to drive it, not let it sit and idle. However I can't see any reason why the turbos would be a specific issue at idle.
e) drive for last few miles in high gear and minimal boost. This will allow the turbos to cool if you've been pressing on. If for some reason you have to stop suddenly -then leave the car idling for a few mins to allow turbos to cool down before switching off.

[twerlie]

robp said:

humpy said:

I think I may be overcompensating so I thought I'd ask the experts...

a). What is the recommended warm up procedure for a Noble 2.5?
b). How long [miles or time] does it normally take to warm up?
c). If the fans kick in - does it mean it's warm enough?
d). Does it damage the turbos to let it idle too long when warming up?
e). If I have been 'pushing it' and then need to stop, how long should I let the car run for to cool down?

Thanks
H

Humpy
a) switch engine on and drive
b)keep below(ish) 3000rpm till water temp is up to normal (approx 92C). After that fine to 'open up' -but remember if you have cold tyres and brakes...
c)if fans kick-in that means you're beyond warming-up; you're well into the cooling cycle
d)best way to warm an engine is to drive it, not let it sit and idle. However I can't see any reason why the turbos would be a specific issue at idle.
e) drive for last few miles in high gear and minimal boost. This will allow the turbos to cool if you've been pressing on. If for some reason you have to stop suddenly -then leave the car idling for a few mins to allow turbos to cool down before switching off.

92C? - my car only gets this hot when sitting in traffic on a warm day?

[pbsaxman]

paulcundy said:

"until the turbos stop glowing red".

[robp]

twerlie said:

92C? - my car only gets this hot when sitting in traffic on a warm day?

Yes - I believe 92C is normal running temp (needle bang on 12 o'clock). However these dials are not known for their cutting edge accuracy, and so:
1) temp may be fine, dial just reading low or
2) dial fine, but sender unit 'blunted' or
3) sender unit and dial fine but thermostat stuck open, or partially open.

Easy enough for service centre to check if you are concerned.

[ThatPhilBrettGuy]

robp said:

twerlie said:

92C? - my car only gets this hot when sitting in traffic on a warm day?

Yes - I believe 92C is normal running temp (needle bang on 12 o'clock). However these dials are not known for their cutting edge accuracy, and so:
1) temp may be fine, dial just reading low or
2) dial fine, but sender unit 'blunted' or
3) sender unit and dial fine but thermostat stuck open, or partially open.

Easy enough for service centre to check if you are concerned.

I think the dial is actually connected to the ECU, and that basically just sends it cold / normal / too hot. That way when the water temp does go a bit high us users don't get in a panic about it.

I think basically it should sit around the low 90's. Over 100 and it's got hot. Those numbers are gauge numbers and have nothing to do with the actual water temp BTW!

[robp]

ThatPhilBrettGuy said:

I think the dial is actually connected to the ECU, and that basically just sends it cold / normal / too hot. That way when the water temp does go a bit high us users don't get in a panic about it.

I think basically it should sit around the low 90's. Over 100 and it's got hot. Those numbers are gauge numbers and have nothing to do with the actual water temp BTW!

Phil - sounds familiar, now you mention it. But bottom line is that 'normal' temp is around the 92C mark (on the dial) and you are unlikely to see it shift until things have got very hot indeed. Bit like having a watch that tells you 'day time'-'night-time'. Hey ho!

[mgbond]

Don't get me started about running temps, my car went back and forth as I thought it was running to hot.

Aventualy Lee told plans that the 2.5's were all over the place and when the 3's came out the temp was regulated by the ECU so people wouldn't keep moaning about temp. Your manual actualy states running temp between 80-110°C.

Mine runs just under 95 and on a recent 15min blurt on a training day airfiled track it never went past 100°C.

Bondy

[humpy]

robp said:

I can't see any reason why the turbos would be a specific issue at idle.

The reason for the question is that this was mentioned on a test drive at Mole Valley - specifically that "the turbos don't like idling for more than 10 mins" apparently??

various people said:

Various answers

Thanks for the answers. Some of the questions may have seemed a bit bizarre - I wasn't sure if the oil temp would be playing catch up with the water temp - if that makes sense.

So, good news - M4 hoonage can start earlier then, particularly the bit after you get off the 40mph elevated section coming out of town - everyone blats it there and I don't want to disappoint - after all I have a certain standard of expectation to fulfil for my 40-70mph performance

While we're at it - any tips on how to remove a hand from frozen metal gearknob??

Cheers
H

Edited by humpy on Thursday 2nd November 01:49

[joust]

ThatPhilBrettGuy said:

I think the dial is actually connected to the ECU, and that basically just sends it cold / normal / too hot. That way when the water temp does go a bit high us users don't get in a panic about it.

The ECU is in direct and full control of the guage, rather than just the three that you suggest. Noble follow all other modern day manufacturers in mapping actual engine temperatures to what is on the guage to fit in with what people 'expect' modern engines to do.

If the needle shoots off to the right, basically quickly stop.

J

[joust]

humpy said:

While we're at it - any tips on how to remove a hand from frozen metal gearknob??

Now if only I could find that picture of the chap who had a knitted gear lever cover for his Esprit...

J

[gadgeroonie]

joust said:

humpy said:

While we're at it - any tips on how to remove a hand from frozen metal gearknob??

Now if only I could find that picture of the chap who had a knitted gear lever cover for his Esprit...

J

LOL - i was thinking about that this morning

mine runs at 85C if that helps

[humpy]

joust said:

humpy said:

While we're at it - any tips on how to remove a hand from frozen metal gearknob??

Now if only I could find that picture of the chap who had a knitted gear lever cover for his Esprit...

J

Bingo!

Calling snuffy! [the owner of said Esprit] Do you think your Ma-in-Law will take orders??

Edited by humpy on Friday 3rd November 13:53

[joust]

Oh - spot on Paul

[gadgeroonie]

I want one !!!!!

maybe one of those boiled egg warmer thingys will work too !!