10 replies to this topic

[Morgan]

Hey

Washed the car yesterday after doing to 4WD course. Everything was covered in mud - including the engine bay.

Gave it a good degreaser and carefully washed it down but now when I turn the car on, I can hear the bubbles in the heater core behind the dash.

Wondering if I can get some assistance for the best way to let them out?

Cheers

[AussieTemplar]

Hey

Washed the car yesterday after doing to 4WD course. Everything was covered in mud - including the engine bay.

Gave it a good degreaser and carefully washed it down but now when I turn the car on, I can hear the bubbles in the heater core behind the dash.

Wondering if I can get some assistance for the best way to let them out?

Cheers

I get this too, and if I recall, Shiv had the same problem?

Gotta bleed the radiator.. I was told to leave the radiator cap off and run the engine for a bit. Not sure though, can't remember 100%.

[Morgan]

Thanks, Nick. Yeah I remember it being something along those lines but want to make sure of the procedure

[Shiv]

Read through this Morgan:
http://www.subyclub....458#entry106458

In conclusion to that thread - the cause of mine was two broken radiator hoses.


CHECK YOUR COOLANT LEVELS! Mine was only making that noise for a bit over a day and it did manage to loose a fair bit of coolant in that period.

[RX25SE]

Bleed system.













Or ask them really nicely to leave.

[Alex]

Dunno about NA's but this is how we do with Turbos.

Raise front of car.
Take radiator cap off.
Block the overflow bottle line.
Start car.
Warm car to normal operating temp, by applying revs (3k) and waiting for fans to kick in.
Top in coolant.
Repeat last two steps until the fans have kicked in a couple of times.
Top up.
Put cap on.
Unblock the overflow bottle line.
Take for a spirited drive.
Leave car to cool down to stone cold.
Check overflow bottle level.
Adjust overflow accordingly.


see if this helps.

[Morgan]

Perfect, Alex. I'll give that a hurly burly.

Can I use water instead of coolant because I'm just topping up?

I will be booking my 190,000kms service this week so I'll definitely make sure they flush the coolant.


Shiv, thanks for that thread. Very helpful. I don't think there is any leaks though... I have a feeling something happened when I was hosing it all out. Well I haven't seen any spillage and it was working fine right before I hosed it out!

Will check the levels though just to be sure

[Alex]

Water is perfectly acceptable for top ups.

Shiv may be onto something here.

Air has to enter the system somehow.

[Morgan]

System is bled and car is cooling down.

Hopefully this works.

Thanks for the help chaps

[Scott]

did it work mate?

i do it exactly like alex said

but when toping it up i get an old coke bottle and cut the bottom off an place the cap end on the rad cap/ (header tank on turbos)
and tip coolant/water down that it forces it down with a bit of pressure
if that doesnt work

[Morgan]

Been bucketing down here all afternoon. Haven't had a chance to test it yet.