[Mk2] [Turbo] Chargecooler Bleeding Query

[hmltnangel]

Arighty,

Just about to drop the car back down afetr its lengthy axle stand stint

My worry is the chargecooler system I put on whilst up in the air.

Everything seems to be working ok. But I am convinced its not bled properly. I cant get any more fluid into the system but when I take the cap off the CC I cant see the 'whirlpool effect' people talk about.

When I feel the pipes though I can feel what seems to be water pum,ping through them, when I squeeze them to limit the flow a bit, th noise of the pump changes slightly. Everything suggests that its fine except the whirlpool inside the CC.

Any suggestions?

[bobhatton]

Sounds like lack of flow, how is it piped up?

[hmltnangel]

19mm pipe all the way with the exception of one section that goes from the pump to the CC itself whic is 22mm. Rechecked it all and no kinks anywhere, I used a proper 180 degree bend to get around my pump placement issues.

The 19mm is routed ok, pretty much straight along the underside of the car, up and over the steering, then behind the fans, inside the wing and into the radiator which is an ST205 one. No places it could kink and reduce flow.

Was thinking an airlock in the top of the radiator could be causing it so was going to get a coolant flush tee and fit it to the pip inside the wing at the top of teh radiator if anyone knows where to get in the UK?

[bobhatton]

Where is the pump and what way does it pump. How have you got the flow and return piped to the charge cooler?

[Slarty]

The whirlpool effect that you're seeing is quite normal.

[hmltnangel]

Im not seeing the whirlpool effect .... hence the query

The pump is mounted between the Air filter and charcoal cannister

i'll pop a diagram up soon.

[Slarty]

Im not seeing the whirlpool effect .... hence the query

That'll teach me to read the post properly won't it

It does sound like you have an airlock then. Have you tried blowing into the filler hole in the cc core with a pipe that completely seals the hole? That's what I do on mine as/when I need to...

[bobhatton]

Im not seeing the whirlpool effect .... hence the query

The pump is mounted between the Air filter and charcoal cannister

i'll pop a diagram up soon.

That sounds too high, it should be down by the gear box. What pump is it?

[Marf]

Any suggestions?

Swap the pipes going into the charge cooler, sounds like you have them the wrong way round.

[Slarty]

Any suggestions?

Swap the pipes going into the charge cooler, sounds like you have them the wrong way round.

Not to poo-poo that idea but I had mine the wrong way around for quite some time and it didn't have any effect on the flow or bleeding as such, just that when it did flow it was pushing the coolant straight up at the underside of the cap, forcing some through into the overflow bottle at times.

[Marf]

Furry muff, I was just of the understanding that if you had them the wrong way round, the first thing you'd notice was no whirlpool effect

[Slarty]

To a certain extent, you're quite correct. Instead you get what I can only describe as a bubbling/boiling effect lol. With the cap off, water was coming straight out of the core.

[hmltnangel]

Any suggestions?

Swap the pipes going into the charge cooler, sounds like you have them the wrong way round.

To get the same effect you just need to swap the wires round so tha the pump is pumping the opposite way.... tried that and it doesnt have any effect.

Blowing into the CC Core almost worked as I got a big gurgle then it sucked teh entire core down before I could stop it, so im sure theres a big blockage of air somewhere, I just cant get it out!

[bobhatton]

Any suggestions?

Swap the pipes going into the charge cooler, sounds like you have them the wrong way round.

To get the same effect you just need to swap the wires round so tha the pump is pumping the opposite way.... tried that and it doesnt have any effect.

Blowing into the CC Core almost worked as I got a big gurgle then it sucked teh entire core down before I could stop it, so im sure theres a big blockage of air somewhere, I just cant get it out!

You have the pipe work and or pump going the wrong way, what pump is it?

[hmltnangel]

its an st205 pump mate

Used Toyo diy parts diagrams to copy the hose layout from, then red to positive, black to negative.

[bobhatton]

its an st205 pump mate

Used Toyo diy parts diagrams to copy the hose layout from, then red to positive, black to negative.

Ok. So the outlet from the charge cooler, the pipe closest to the turbo goes to the bottom connection on the pump, then the side connection on the pump goes to the front rad, then the return back to the charge cooler, connection closest to the inlet manifold.

[hmltnangel]

thanks for the help but having a dumb day today



The ST205 pump, both pipes go the same way so bottom/side? In the image above, what pipe from the pump goes to the Core and what goes to the pre-rad?

[hmltnangel]

This is how I have it hooked up.

[gazrev1tubby]

To bleed the system correctly, the pump needs to be at the lowest point of the system - at least that was the case for me.

I had nightmares trying to bleed my setup, and in the end, I un bolted my pump, and let it sit on the driveway. As soon as i fired the power up, it self bled straight away.

Then I just reattached the pump when the system was full

[Driftlimits Performance]

get a marine pump!