Just making sure, white smoke would mean there's either a radiator hose loose, or a head gasket going bad right?

hmmm how is the smoke comming out, ie on start up or idle and when it blows out does it dissapate?

Originally posted by 300z:

hmmm how is the smoke comming out, ie on start up or idle and when it blows out does it dissapate?

 

white smoke appears to be coming from behind the engine, it smokes after idle and actually running the car, and yes it does dissapate, it's not bluish grey like oil would be, i figure it's probably radiator fluid, and after running the car for a few i can hear something bubbling inside, probably cause it's gone way too hot.

 

but it's mostly visible when on idle, you can't really see it while running, cause it blows away when the turbos kick in

 

 

sorry m8t but is it comming out the exhaust or in the engine bay?

 

if its out the exhaust my guess would be water condensastion, if the smoke just dissapates and does not hang around.

could be the heater hose to the rear of the engine that is leaking!!

it's coming from behind the engine, mostly from the right side behind the engine

sorry i misread that. It could be a water hose with a split in it. quite common with all the heat behind there.

Originally posted by 300z:

sorry i misread that. It could be a water hose with a split in it. quite common with all the heat behind there.

 

and that'd be enough to create a quite of bit of steam, and cause the engine to heat up pretty badly, cause when I took it out tonight for a longer period of time, and popping the hood, I actually heard the oil in the engine boiling........... can't be good needless to say it's going have to be fixed soon

 

 

.

fix it.. soon.. soon.. soon.. yesterday!

 

had a similar thing, only there was no visible steam.. the odd drip from that area to the floor, and used about 100ml of coolant a day..

 

on a 300 mile trip, the coolant got so low, and so hot that the pressure split the hose right open..

 

one empty cooling system, very quickly indeed

Originally posted by aaronjb:

fix it.. soon.. soon.. soon.. yesterday!

 

had a similar thing, only there was no visible steam.. the odd drip from that area to the floor, and used about 100ml of coolant a day..

 

on a 300 mile trip, the coolant got so low, and so hot that the pressure split the hose right open..

 

one empty cooling system, very quickly indeed

 

so it's offical, it's the cooling problems right? how much could it cost me to fix, from best possible to worst possible scenerios? not too much right?

 

 

Yep by the sound of it you've got a split pipe, might only be a small split, but it'll mean that the system wont pressurise, and it'll overheat much quicker.. The boiling you can hear is probably the very hot water escaping through the split pipe.. Your water level will be going down too, I imagine?

 

The problem is access to the pipes down there.. depending on which one it is.. if you can even find it!

 

Still, it's not a *hard* job, just a long one (unless you have a garage.. if you do.. grrrr! ) - my method is removing the upper inlet manifold to get access to *all* the small coolant pipes, and do them all at once.. If you can see the pipe you need to replace - you can probably do it without removing the manifold..

 

So best case, cost of some pipe & hose clips

Worst case, cost of some pipe, hose clips, inlet manifold gaskets (cheap), and maybe some other bits if you want to do them when access is easy - injector connectors, coil pack connectors, PCV valves, EGR valve etc..

 

Az

score, i actually have access to my friend's garage, and he lives about quarter mile away

could i convince anyone to post a picture of the manifold and where exactly everything would be located?

Originally posted by aaronjb:

fix it.. soon.. soon.. soon.. yesterday!

 

had a similar thing, only there was no visible steam.. the odd drip from that area to the floor, and used about 100ml of coolant a day..

 

on a 300 mile trip, the coolant got so low, and so hot that the pressure split the hose right open..

 

one empty cooling system, very quickly indeed

 

getting this on my bm - grrrr. ultimate driving machine my arse.

 

how do you identify if it is a hose?

my concern is that my radiator is pissing coolant out when under pressure (starts almost as soon as the engine is on). Coolant is dripping out from about where the coolant reservoir is, but there are drips of coolant all over the place on both sides of the engine...

 

not wanting to hijack the thread - but it's so similar that i couldn't help myself...

Originally posted by kszx:

could i convince anyone to post a picture of the manifold and where exactly everything would be located?

 

There's a fairly good writeup on http://www.ttaz.org/tech/injectors

 

I found it very helpful - but don't take it gospel..

Originally posted by chromeless:

getting this on my bm - grrrr. ultimate driving machine my arse.

 

how do you identify if it is a hose?

my concern is that my radiator is pissing coolant out when under pressure (starts almost as soon as the engine is on). Coolant is dripping out from about where the coolant reservoir is, but there are drips of coolant all over the place on both sides of the engine...

 

not wanting to hijack the thread - but it's so similar that i couldn't help myself...

 

Get the cooling system pressure tested at a garage - any small garage should be able to do it for a minimal fee, you'll be able to see where the coolant comes out much more easily without an engine running..

Not wishing to sound OTT but make sure when running the engine that you dont allow it to overheat because then their is a chance youll blow the head gasket or even warp the head/s.

As posted before because of the limited space it is very tight removing the plenum but can be done before you do check all other easily accessed hoses fo leaks.

A pressure check is done in minutes at the garage by connecting a Pressure tester to the top of the expansion tank(coolant reservoir) and

pressurising the system to 1 bar and seeing if the pressure drops it wont tell you where

the leak is but the speed of the loss of pressure will tell you how big a leak you have.Best of luck!!!!!

question which is better wire braided or rubber hoses?

KSZX the braided help protect from the massive heat build up under the hood.

 

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I had similar problem. White smoke from exaust and engine over heating, when pressured a little. Initially the garage didn't spot the problem, which turned out to be with a head gasket. Beats me, why a Japanese garage, knows so little about a Japanese car (live in Tokyo now).

Originally posted by MAC 1:

KSZX the braided help protect from the massive heat build up under the hood.

 

 

braided metal hoses are flexible and don't have any rubber behind them correct? they sell them here I'm kinda relucant to buy cause

 

1. they're cheaper

2. they're universal fit

3. they come scrunched up like a smooshed coke can