Help, my Z has started dripping at quite a fast rate my radiator coolant and water, I have taken some pictures below as it appears to be coming from some sort of metal tank beneath the engine where the cogs are?? Its not coming from either the radiator or the pipes by the looks of it, I have booked into a garage to get it sorted friday but I would like to know what you people think first. Any more questions about it please ask. It is leaking when the car is not running as well as when it is. All advice would be gratefully apprieciated. Many Thanks.

The metal tank thing is in the last pic, but there is no hole in the underneath or anything it seems to be coming from where something go's into the tank. Sorry about the non technical description.

could be hoses right at the back under the engine. There are 2 main ones, turbo coolant hoses I think...they have silly clips on that have a habit of going or becoming weak.

could be hoses right at the back under the engine. There are 2 main ones, turbo coolant hoses I think...they have silly clips on that have a habit of going or becoming weak.

It cannot be turbo coolant hoses mate, as its an N/A, but cheers anyway.

Not sure but is the water pump not located around there?

Not sure but is the water pump not located around there?

Not sure but I do'nt think so???????????? Also I did'nt fancy staying under the car to long as only up on a scissor jack and I have seen my Z slip off a jack before, luckily I was not under it. But the garage I am taking it to will be able to find out for sure, just thought somebody on here would be able to put their finger straight on it.

http://www.300zx.lv/parts/ take a look at the diagrams on this site, it may help you.

Are you getting any steam from underneath the cam covers when she's been running? If so, it's most likely one of the two short rubber coolant hoses which link the top water pipe to the cylinder head... These are a common failure :(

 

HTH

 

Steve :)

 

Are you getting any steam from underneath the cam covers when she's been running? If so, it's most likely one of the two short rubber coolant hoses which link the top water pipe to the cylinder head... These are a common failure :(

 

HTH

 

Steve :)

 

Yes mate I am getting steam, but do'nt know where from as I only seem to se a small amount come from underneath the bonnet while stopped at light after been driving it.

looks to me as though its the water pump! but it could be the thermostat housing seal !!! or one of the pipes from thermo housin or clips!! good luck!! :smash:

I am pi55ed off this problem is the thing that made me delay my Dyno run untill the 24th January :(

i thought mine was coming from engine but it turned out to be a fine spray from the rad squirting onto the engine

 

HTH

i thought mine was coming from engine but it turned out to be a fine spray from the rad squirting onto the engine

 

HTH

I checked that mate and radiator is as clean as a whistle but cheers anyway bud.

Only guessing mate, can't see a lot from the pics-but the metal tank your referring to aint' the sump is it?-if the 'cogs' are the pulleys then I take it the leaks at the front of the engine?

If yes to the above,could be the 'usual' suspects,i.e. water pump,the short hoses from the block to the water pipes, metal spigots these hoses fit to,or even the t/stat housing.

I was basically taking my life into my hands taking these pics and I suspect the water is dripping down from above somewhere and what you have said sounds correct as Cybernet has also mentioned this I do'nt suppose you have pics of these pipes or even the pipes them selves??

In the diagram above mate! :)

The small hoses are circled in red and the t/stat housing in blue!

To replace these hoses if it is that what am I going to have to do to get at them??

To replace these hoses if it is that what am I going to have to do to get at them??

 

IIRC...

 

Remove fan

Remove cam covers

Remove top water pipe

 

HTH

 

Steve :)

Im in the process of replacing these hoses at the moment. You need to remove the fan cowl (top & bottom), the viscous fan and the top water pipe (although I removed both top & bottom for better access). Its a fiddly job but very do'able, you may need to buy a long reach 6mm allen key or socket for your socket set as the three bolts holding the top pipe on are set back quite a way and WILL be tight!

 

HTH

 

Gareth

...water pump bearing seal. Needs new water pump - and you may as well do the hoses at the same time - and if the timing belts old, do that as well.

 

Good luck

 

Jack

...water pump bearing seal. Needs new water pump - and you may as well do the hoses at the same time - and if the timing belts old, do that as well.

 

Good luck

 

Jack

I hope not, as I do'nt know anybody who is selling a new water pump also I do'nt know how much one will be?? I take it with what you have to take off to do this job I can replace the timing belt as well then?? Which trader sells them??

Thanks Guys you where right its one of those small hoses I put my fingers under there and can feel it leaking. Next question who has got 2 spare hoses they can get to me asap. Thanks.

Thanks Guys you where right its one of those small hoses I put my fingers under there and can feel it leaking. Next question who has got 2 spare hoses they can get to me asap. Thanks.

 

MJP or your friendly Nissan dealer should be able to get these for you quickly bud

 

Steve :)

Parts oredered now thanks guys just got to take every thing apart to put new pipes on. How long this will take I do'nt know but I could be off the forum for a few hours or so tommorow, oh well I need the break. LOL

Parts oredered now thanks guys just got to take every thing apart to put new pipes on. How long this will take I do'nt know but I could be off the forum for a few hours or so tommorow, oh well I need the break. LOL

 

 

depends how good you are mate anyting up to a couple of hours but more than likely just an hour +/-