Just bought my first Z, so I don't know too much about them yet.......

 

On Saturday I drove the car from Essex to Coventry without any problem at all. Tonight, I got home after a 70 mile semi-fast drive and let the engine run for about 10 mins and all was fine (I was learning about the radio while I waited) and switched off. I went back to playing with the radio. About 2 mins later I noticed lots of steam(?) pouring towards the windscreen. I immediately popped the bonnet and went to have a look. The plenum was making a popping and hissing sound and there was a lot of heat being thrown off. There was no indication of this while I was driving.

 

I let the engine cool down more and checked the oil and water about 2.5 hours later. They both seemed fine.

 

I'm a bit paranoid about driving it now until I know what's happened. Does anybody have any ideas, please?

does it have a bonnet vent?

Yep, it has a bonnet vent.

Ok possible water is getting onto the plenum via that, and buidling up whilst idling if its raining

 

otherwise it could be a split water hose, but if your not loosing coolant then its unlikely, I would keep an eye on the coolant and oil levels.

 

if you still arnt sure then it may be worth having either a local garage or a local member on here that knows what they are doing taking a look :)

Cheers Mike, I hadn't thought of that. It was raining at the time and I was parked on a slight slope - could well have been rain channeling onto the hot plenum. I will keep a close eye on it and get it checked too.

This is much more likely to be a burst plenum to turbo hose at the rear of the engine - I have it too and a few others show this recently -it has to do with the age of the hoses. There will be a tiny crack that opens up under the pressure that increases shortly after a hot run.

 

Watch the water level till its fixed. These rear hoses are a bitch to get at unless you have arms like et

!!!!

 

Thanks for the tip!

In the cold light of day, it looks like WillieO is spot on :(

These rear hoses are a bitch to get at unless you have arms like et

 

Your not wrong Willie I have had too do quite a few of these recently :(

Tell the boys how then cos I still cant see it :)

 

Each time it happens it stops before I can see where its coming from

Tell the boys how then cos I still cant see it :)

 

Each time it happens it stops before I can see where its coming from

 

LOL OK

 

on the nearside turbo there is a two water hoses connected together by a metal hose this leads to the offside heater hose , to get to the top part off this hose is easy as its at the rear of the upper intake , the other end on the turbo is a little more tricky , you can either get to it from where the battery sits or come up from underneath the car (easiest way) , you will need to undo the 10mil bolt holding on the metal part of the hose, this attaches to the nearside heater hose , you can then pull out the whole hose assembly.

 

You then make up one hose from the nearside turbo to the offside heater hose.

 

Ryan

Cheers Ryan. So I need to get under it. Thanks for the advice.

 

I was worried about leaning on the thick bit of wiring loom at the back of the engine. With all the stories about brittle wires I thought bending it out of the way might not be a good idea

Cheers Ryan. So I need to get under it. Thanks for the advice.

 

I was worried about leaning on the thick bit of wiring loom at the back of the engine. With all the stories about brittle wires I thought bending it out of the way might not be a good idea

 

No worries

 

its easier to get too from underneath its just real fiddly

 

Ryan