Boiling Turbo

olboy · Postby **olboy** » Sat Sep 17, 2011 7:39 pm

This may be normal but I haven't seen it before
The water in my turbo is boiling after I turn the engine off
Before someone tells me I need a timer it does it after a cold start and about 10-15 minits idle, No driving
Is this normal

Olboy

NMX516 · Postby **NMX516** » Sat Sep 17, 2011 8:06 pm

How do you know the water is boiling?

BadBong · Postby **BadBong** » Sat Sep 17, 2011 8:40 pm

So you're saying that the water/coolant is boiling just by turning the car on and not stepping on the accelerator....?

When was the last time you've changed the coolant?

Is your radiator hot?

Is anything leaking under your engine bay?

olboy · Postby **olboy** » Sat Sep 17, 2011 8:59 pm

sorry the water is boiling in the turbo, I can here it boiling after the engine is off
I only need to warm the engine up and the turbo gets realy hot so that the water boils when it's not circulating
I don't even have to drive the car
I don't think it does it when the engine is running only after shutting down
It's a new second hand conversion

NMX516 · Postby **NMX516** » Sat Sep 17, 2011 10:02 pm

Can you post pics of the install, showing the orientation of the water and oil lines to the turbo?

olboy · Postby **olboy** » Sun Sep 18, 2011 8:46 am

Not real good with pics
one line goes to the thermo the other goes to the waterpump inlet
I don't think thats the problem as it's as per the FM instructions and happens after the water stops flowing
It's like the exaust/turbo is getting too hot and the water left in it after shut down is boiling
It may not be a big deal anyway

olboy

gslender · Postby **gslender** » Sun Sep 18, 2011 7:19 pm

Are you sure it's boiling and you're not just hearing air bubbles?

olboy · Postby **olboy** » Sun Sep 18, 2011 7:54 pm

sounds to me like a cuppa is on the way

NMX516 · Postby **NMX516** » Sun Sep 18, 2011 11:32 pm

Air in the cooling system by the sounds of it. Take the rad cap off when cold and let the car idle up to normal operating temp. Give the car a few revs and watch for large bubbles coming up through the radiator outlet. Keep the car running until the bubbles stop. You'll probably need to top the coolant up a bit after this... Do all this with the car on level ground.

bjones · Postby **bjones** » Thu Oct 06, 2011 5:42 pm

NMX516 wrote:Air in the cooling system by the sounds of it. Take the rad cap off when cold and let the car idle up to normal operating temp. Give the car a few revs and watch for large bubbles coming up through the radiator outlet. Keep the car running until the bubbles stop. You'll probably need to top the coolant up a bit after this... Do all this with the car on level ground.

I cant agree more with,

How did you go ????

BJ

olboy · Postby **olboy** » Thu Oct 06, 2011 7:50 pm

turned out to be running lean
thanks for the suggestions anyway

Olboy

bjones · Postby **bjones** » Fri Oct 07, 2011 1:43 am

Sorry but wtf!!!

It was turned off you said so yes running real lean like no petrol!

What you described and what you said was the cause JUST DOESN'T make sense!

Can you please expand on how they or you got that conclusion?
What testing
What did you actually do to fix it?

Just stumped me with your reply so I'd like to know

Thanks BJ

olboy · Postby **olboy** » Fri Oct 07, 2011 5:25 am

Its a new second hand turbo set up and we are still trying get the tune right
the car was running lean when it was running
it must have been too hot and when we shut it down it boiled the water left in the turbo
Thats all I can put it down to
although it wasn't red hot or anything

olboy

gslender · Postby **gslender** » Fri Oct 07, 2011 6:34 am

Well that's ridiculous... A turbo in an engine tuned to rich or even just right would still get significantly hot enough to boil water/coolant anyway...... .!??

You had air that eventually made it's way to the top and escaped at some point.... My guess anyway.

G