I spent ages today locating a coolant leak and removing the offending hose. It was a short hose just above the egr valve. I had to remove both of my plenum bypass hoses to get to it.

 

The hose in question is marked in red and it attaches to the pipe I've highlighted.

 

This is what it looks like

 

 

The question is, does anyone have a clue what it's called, or know a part number? Even looking at diagrams, I'm not exactly sure!

I'm not sure what it does - but if you need a replacement in a hurry, get down to Halfords and buy a length of the same diameter hose and cut it to size.

It's one of a series of small pipes and hardliners that form the throttle body coolant lines and turbo coolant lines. There a rain pain to do in situee. You should be able to just replace the hose with some coolant hose from the motor factors, not much point ordering the specific bit.

Thanks for the advice guys. I did try replacing it with a generic hose, but there was a restriction caused by the bend in it, which I wasn't happy with. I'm going to have an educated guess tomorrow morning and order what I think is right.

That hose you have pictured appears to be an original Nissan item, so it's probably as old as your vehicle.

Chances are, every "difficult to get to hose" will be the same age & in a similar condition.

You could save yourself future dramas & headaches by changing ALL the coolant system hoses rather than just replacing this one.

I thought I would complete this thread, it might be useful in the future for someone. This was the correct hose that i got from MJP.

Good old Mike :thumbup1:

Well done, Mike is very helpful isn't he. Please go through and change ALL those pipes asap though, otherwise you be having the same issue in the very near future. Probably when it's least convenient and it's a bloody good way to over heat and kill your zed. Trust me.

Well done, Mike is very helpful isn't he. Please go through and change ALL those pipes asap though, otherwise you be having the same issue in the very near future. Probably when it's least convenient and it's a bloody good way to over heat and kill your zed. Trust me.

 

Mike was really helpful, he spent ages on the phone finding the right part with me. I got rid of a lot of the hoses a few years ago, when I did the plenum bypass. I've got the two heater hoses ready to be fitted.

I always found this most useful.. (in case you didn't know about it)

 

http://nissan4u.com/parts/300zx/

I've never seen that before, it looks really useful, cheers.