tonman83

Update, cleaned / repaired the fans and it's working well with the ac. Just need to get the car up to temp to check the coolant element works.

Hi Cob1980, I've just been through this saga myself, very helpful videos on youtube. Both of my fans are now working well with ac on; just need to get the car up to temp to test the cooling element.

Quick update, I think the fan motors have had it. I've seen a video of someone trying to repair them. I'm going to give it a go.

Thanks Jez, I'm going to look into the fans in due course. All seems fine at present.

Good morning All, A quick update; I drove the car to work today and stopped every 15 minutes to bleed the coolant and it's looking like it's working quite well. The water is dropping towards max in the header tank, the temperature is stable, the water seems to be filling the pipes more. The fans are still not working. I'm driving sedately.

Good evening, I've just been out having a look at the car. Firstly, you guys are right about the fans, they don't seem to engage properly. I turned on the air con with the car stationary and they didn't get going without prompting. With the car idling, and the header tank full of water, I tried to bleed the system using the screw valve at the back but there was little water coming out, in fact I had the screw completely off without much movement without me prompting water by squeezing the pipe at the top of the rad. I'm going to slowly trundle to work tomorrow and see what happens. I think I may need to force more temperature to get it going?

OK, cool. I will have a look. Many thanks Jez

Thanks both; I will check the fans in a bit more depth tonight with the air con etc. If neither fan was working at that time that could have been the problem. I am surprised how much affect the fan has. My gut thought is that it isn't too bad; as I noticed reasonably promptly and didn't do anything moronic. Where is the pressure valve relative to the header tank, or maybe there isn't one? Is there a bleed valve to assist topping up? Where are the likely weak spots for me to check? Many thanks guys, really appreciated. ps the car had some work done at Horsham a few years back (plenum, exhaust, re-map etc) still going well!

I took my Zed to a RWYB drag racing event at Smeatharpe, Devon (the real home of motor racing) on Saturday. It was my first go up there; and long story cut short, the car started to over heat as I lined up for my fourth attempt. It went up through the temperature gauge, to the top of the red. As many of you know, when you are in the queue up there you can’t get out. I noticed a bit of steam coming out of the bonnet and so when I arrived at the start I told the marshall I wouldn’t race and drove up the quarter mile and back slowly, and the temperature started to drop down (presumably because of the improved air flow). I put the heater on and returned to the pit area, to unsurprisingly find a lot of luminous green coolant had leaked out and was decorating the inside of the under tray. A lot of the rest of the water was around the header tank and the left hand side of engine bay, presumably because the steam had risen and condensated on the in inside of the bonnet. It seems to me that it must be a split pipe; because there has been no smoke out the exhaust, and there is no water in the oil (as far as I can see from the cap). Furthermore I don’t think that much water could have come out of the header tank lid under pressure. The engine management light came on, which is understandable. I let the car cool down. I topped up the water into the top of the radiator and that which disappeared from the header and drove home, which took about 10 minutes. No temperature excitement. I noticed that only 1 fan was working when the car was stationary. On the brief inspection of the car, I can’t see where the water might be coming from; and I’m not familiar with the coolant system. It doesn’t look like it’s coming from any head gasket type areas or the radiator, more like around the header tank, or where the alternator is. I filled the header tank last night, and it was still full this morning; so maybe only leaking under extreme load? So the questions!: - How badly do people think I have damaged the car? - Where can I locate a coolant pipe diagram? - Whats the easiest way to find the leak? - Does anyone have experience of this type of thing? - What other improvements should I make to the car to prevent this in the future? - Any other advice please!

Hi All, I'm sorry for the confusion. Yes, Shezza you are right, I'm on a DE. Sorry to mess you around G1en. Easty, yes I'm interested. Do you have any pics / details / idea of price please? Thanks everyone. Obviously I am new to this!

Hi G1en, Do you still have these? I would like them please. Tonman

I will explore that KyleR as a I have a few garages I use. I'll post on here how it goes! Zmanalex, please let me know if you acquire any! Thanks

thanks very much, will do

Thanks Jetpilot, I was thinking as much. Do you know where the best place is to get stock ones? Thanks

HI All, I’m running a 2005 350z with Japspeed 350z de-cats , Cobra y piece and Scorpion exhaust. I bought the car in May, and it was made clear to me that there were no cats. It’s coming up to MOT time, and I have been considering buying some cats to put into the car. I have the following questions: Is it right that if the car is running well, it might not need the cat to pass the emissions test? If it fails and I decide to buy some, are there any that you would recommend, I can see there are a few high flow options at Berk Tech and Torqen, but there are a lot of options! How do I know which one to buy?! And will these pass the emissions? How and where can buy stock ones? Thanks