Rb20Det Water Boiling

[benoss]

Hey guys, lately my r32 gts-t water started boiling in the overflow bottle but the temp gauge doesn't even creep over half. Anyone know what it could be?

[Hadouken]

Standard temp gauge is Shit.

Is it boiling or just going to the overflow bottle?

Do you get pressure through the system?

Is your top hose hot?

Could be blocked radiator or old radiator cap.

[Sinista32]

Mate give it a serious flush and put Techaloy pre-mix coolant in.

If it still occurs get it to a radiator place asap and ask them to check your cooling system and give you a quote.

you have the worst luck benoss.

The guy who sold you this car is damn lucky.

[benoss]

Well it just boils into the overflow bottle. Radiator isn't blocked as I had it out today and flushed water through all the holes.

It's doing it at the moment, I just opened the radiator cap and the water it pumping up and then down?

[R_34]

I don't really trust the factory water gauge.

Is you radiator cap in good shape ?

And your radiator ?

Does your coolant circuit go under pressure at all when hot ? Or does it have a lot of pressure in it ?

Does your viscous clutch still locks when the engine seems to run very hot ?

How old/many km the water pump is/have ?

Any symptoms of a possible overheating ?

[benoss]

Some of the radiator fins are pretty bashed up, it has a thermo fan doesn't run the clutch fan anymore. Both the thermo and front aircon fan thing come on when it gets hot hot. The car only has a genuine 103xxxkm's on it so I'm guessing that's how old the water pump is hahaha?

A week or two ago the brackets on the thermo snapped and I was stupid enough to drive it one night with out the thermo fan and it over heated that same night and since then it's just been getting really hot

[benoss]

Just got back home then and it spat a bit of coolant out. Today I had the radiator out to mount my thermo back up and I flushed water through the radiator and put new pre-mix coolant in it

[KiwiRS4T]

Is your thermostat still opening?

[scotty nm35]

Have you tried simply bleeding the cooling system? If it overheated a little it will probably have air in the system.

[dopey]

Air lock would explan the water pumping up and down when looking at it, maybe even check a head check if it has been over heated, it could be pressure escaping through over flow and not boiling.

[89CAL]

Radiator cap

Check it, clean it, replace it

[XRATED]

how bad is it bubbling?

head gasket???

[benoss]

Just bleed the whole system properly and it seems all is good. Thanks guys!

[Sinista32]

Cool

[benoss]

Alright it's not bubbling in the over flow bottle anymore, it just spat coolant out from the top overflow thing on the bottle? My guess is that it's blown a head gasket.

[Hadouken]

probably when it overheated

[scotty nm35]

Alright it's not bubbling in the over flow bottle anymore, it just spat coolant out from the top overflow thing on the bottle? My guess is that it's blown a head gasket.

You can check for combustion carbon in the coolant easily, but more likely it is either still in need of bleeding, or the radiator cap isn't sealing properly.

[benoss]

Replaced the radiator cap and it seems that all is good. Thanks for the help