61 replies to this topic

[Morgan]

Using Alex's step by step guide, I have bled my cooling system.
Usually, if air is getting in, there is a leak of some kind. Check for this around the engine bay. The bubbles appeared in mine after I rinsed out the engine bay so the coolant level was still high and there are no leaks, fortunately.

Thought I'd chuck up a pictorial guide for others who may hear the bubbling waterfall behind their dash.
Plus, this place needs more DIYs!

Make sure you have a friend to help you



Park the car on an upwards slope



Take radiator cap off and block overflow tank. I used a G-clamp



Start car



Warm up the engine. Rev at 3000rpm until fans kick in

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Turn A/C to max heat



Top up coolant. Water can be used to do this. Repeat this for a few fan cycles.



Put cap back on and take off the clamp



Drive car



Let car cool down



Keep an eye on the coolant level and top up when needed.
 

[Sam]

Cool DIY morgz.

How do you know that you have bubbles in the coolant but? Is it a loud noise?

[Morgan]

When I turned the car on, I could hear what sounded like a waterfall behind the dash.

[Grant]

Cool DIY morgz.

How do you know that you have bubbles in the coolant but? Is it a loud noise?

You'll know it if you hear it, used to happen in my old gen 2 but I had no idea what was doing it

Nice writeup Morgan!

[Alex]

Brilliant.

Now I have a thread I can direct teh n00bz when they go ZOMG next!


Nice going.

[AussieTemplar]

I've got this waterfall sound aswell, I won't run into any serious problems if I don't bleed the radiator will I?

Nice write-up though Morgstein.

[Morgan]

AFAIK it just means there are pockets of air running through your cooling system. This may give your temp gauge a false reading?

But it took be about 15-20 mins to bleed this out including taking photos. It doesn't cost you anything so I don't know why you wouldn't do it!

[AussieTemplar]

AFAIK it just means there are pockets of air running through your cooling system. This may give your temp gauge a false reading?

But it took be about 15-20 mins to bleed this out including taking photos. It doesn't cost you anything so I don't know why you wouldn't do it!

Eh I've just been so busy lately.. If I'm not at school, I work Saturdays and Sundays.. So many other things to do on top of that.
Maybe after school one day this week, hopefully

[RX25SE]

Nice one Morgs.

invisirep to you.

[bobbyjimmy]

Should of turned the heater on, but the A/C off - the fans would of been on from the get-go and taken longer.

[Martinez]

I'd always wondered what that noise was, will have to give this a try

[thatTTguy]

Hey guys just wondering will this work for turbo models as well?? (more to the piont, B4's)

Thanks

[B4TT]

Nice one Morgs, Not sure you need the heater on though... Don't hold me to this but I have a pretty good feeling that unlike a lot of other cars out there the subies don't have a heater tap and the coolant flows through the heater core at all times.

Very nice write-up

Hey guys just wondering will this work for turbo models as well?? (more to the piont, B4's)

Thanks

Why wouldn't it is more the question.

[Morgan]

You're probably right, Lukeosh

In my research before doing the bleed, I found some that did put the heater on and some that didn't.

[RX25SE]

I think Josh is correct also.

A safe bet with all cars is heater on max temp and low fan (so you can feel the heat).

coolwriteupbro.

[B4TT]

True true,

Always better to be safe and really it is no extra trouble to do it

Once again, great effort Morgan! good to see some usefull DIY stuff appearing.

[Evil_VZ-T]

I always have the heater on hot from when i drain the old coolant, till its all done. I normally wait untill the bottom hose is hot, as the thermostat would of opened.

I have a special tool that can be bought from repco or any autoshop that sits on where the radiator cap goes, and holds a head of coolant. As when the air pockets come out, it sucks more coolant in.


On N/A models, use your only radiator cap which is on the radiator,

Turbo models, use your header tank one if you have duel caps, as its the highest point, unless your parked on a huge angle or on stands

[B4TT]

Surprisingly I actually havn't seen that tool. sounds like it could be a bit of win. Who makes it? I wanna get one.

[Alex]

Surprisingly I actually havn't seen that tool. sounds like it could be a bit of win. Who makes it? I wanna get one.

Me too.


My home made one is p00.

[Evil_VZ-T]

We have two at work, but no boxes so i dunno the brand. ive got my own at home in the original box so ill take a pix this arvo and put it up for you all.

Repco sell them here in ACT,