Cabin Temperature - solution needed

[russ turner]

Can anybody help with the following problem

Currently running with a very hot cabin and can't find the solution.

Engine temp OK
Coolant levels OK
Fans Work OK
Heater Valve in passenger footwell seems to work OK

Heat coming into the cabin, even with the roof off, windows down, is excessive when the heater controls are in the cold position.

Tried looking in the bible but not much info in there about the heater and blowing too hot air

Anybody got any clues ?


Russ

[MADMAX2]

thermostat stuck in the open position?

[JonathanT]

are you saying that your vents still blow hot air when set to cold on the dial?

FWIW hot air seems to get dumped into the cabin from the engine bay when the roof is off or the window is open - that bit seems normal.

[AlexB]

As far as I understand it, if the valve in the footwell is working ok (how did you check yours?) then it should stop coolant flow to the heater matrix when you set the controls to COLD. The airflow through the matrix can take a while to cool it down if it was hot to start with, but it should at least get cooler. If you set the controls to cold and go for a run in the car the heater matrix should never get hot (I think) - if it does get hot then the valve is a good suspect.

Make sure that when you turn the heater control the valve actually turns and make sure it turns the right way (I think I read that it has been known for these to be linked the wrong way round) - I don't know if there is any adjustment available, but, if there is try to ensure that the valve actually shuts rather than just restricts the flow a bit.

I hope that my understanding of the heater setup is right, if not then the above can probably be ignored

The hot air IS coming from the vents isn't it and not from some hole into the engine bay by the exhaust

Good luck sorting it!
Alex

[FlipFlopGriff]

It'll need to be hot the next 6-8 months or so Russ.
FFG

[That Daddy]

FlipFlopGriff said:

It'll need to be hot the next 6-8 months or so Russ.
FFG

give it another couple of weeks Russ Turner and you will be glad of all that extra heat its currently legging it down.

[Krautchimaera]

hello Russ, do you have a car with aircon?
I had the same problem with mine. About 2o% of the movement of the disc to adjust the temperature is used to swith on the aircon microswitch. As there is no overriding point at the heatervalve, you always have the heating on a little, or you you close it, but then the aircon is switched on. As my car is pretty heavy on fuel anyway - or is there a problem with my right foot?- I was no keen on driving with the aircon switched on all the time. So I discarted the microswitch and fitted a switch under the dashboard next to the diallights on/of swith. like this I can really turn off the heating without switching on the aircon, huge diffrence. Also I had to adjust the wire cause the valve was not really closing. this is the artistic job again - sorry.

[mak]

Krautchimaera said:

hello Russ, do you have a car with aircon?
I had the same problem with mine. About 2o% of the movement of the disc to adjust the temperature is used to swith on the aircon microswitch. As there is no overriding point at the heatervalve, you always have the heating on a little, or you you close it, but then the aircon is switched on. As my car is pretty heavy on fuel anyway - or is there a problem with my right foot?- I was no keen on driving with the aircon switched on all the time. So I discarted the microswitch and fitted a switch under the dashboard next to the diallights on/of swith. like this I can really turn off the heating without switching on the aircon, huge diffrence. Also I had to adjust the wire cause the valve was not really closing. this is the artistic job again - sorry.

.....
There's allways someone who pops up with aircon just to rub salt into the poor mans wounds , On the odd occasion when it has been hot i allways look at that heater dial with the tiny green light to the left and think your taking the ps, just as the fans kick in and waft all the hot air into the cabin, nice.

Edited by mak on Friday 5th September 17:24

[daz the plumber]

have you turned the heater knob off just under the steering column .

[V8isa]

Daz


Where is this? My Chim hasn't got one of these.

[daz the plumber]

just to the right underneath the column, its for fresh air but it seems to be warm on mine , its a switch round in shape and as three settings ... get your head underneath.for got to say i wrapped from the main cat up the lambdas with 4" exhaust wrap and ss ties.it dont look bad and as cooled the area nicely .you can touch the exhaust with out burning your finger and the gases get away quicker.

[russ turner]

Thanks four your tips and comments

If it stopped legging it down I'd get out there and have another look before it floats away........and yes just to add insult to injury it has got air con.

It's not HOT air that bothers me that much it's the VERY HOT air that burns my legs. If I wanted a sauna I'd go and find Cuddles on the Hagley Road or did that place get busted!!

I'll keep you posted if and when it stops raining........

[Blues]

V8isa said:

Daz


Where is this? My Chim hasn't got one of these.

Me neither

[MoreSteam]

Blues said:

V8isa said:

Daz


Where is this? My Chim hasn't got one of these.

Me neither

Round about where the boot switch is.

[Blues]

Nope, i haven't got one of those

[russ turner]

I have - 3 speed, blows lovely cool air at the face, from the drivers side at least. Don't seem to blow anything thro at the passenger side.

Doesn't quite direct down to the footwell area though