General Discussions - 300ZX Related

Black 300 in Blackfield nr Southampton this afternoon (2nd April) G reg.

There is a sort of hissing sound around the back of the engine at idle that is still there after changing all the vacuum lines that I could get at for silicone. Could it be the EGR valve, and if so is it posible tro remove, disbale or bypass it with the engine in? Could this be the cuase of high but stable idle. I had a rough idle at about 800 rom, but after replacing plugs, cleaning throttle bodies and checking all the injector connectors,etc the idle rose to 1000 rom. I'm a little perplexed.

I have been offerd a Z, uk, auto but has 140k on clock, would this be of concern, comments please :confused:

I think I've seen a total of 3 other zeds in Jersey apart from mine. Anyone from Jersey on these boards? If so, maybe we should have an inaugural meet of the Jersey Z Chapter.

Help! It has siezed solid, I've got a mechanic looking at it who has no experience of Zeds... :( Any1 any ideas what I should do from here? Should I go for a rebuild? or should I try and source another engine? Maybe go for a rebore & forged pistons or gawd knows (i.e. try to make the best of a bad situation and get the engine beefed up with better bits) Anyone know a good zed mechanic in Gloucestershire? i'm fairly near Cheltenham. Any help would be much appreciated.. :cry:

My car is still missing and after 2 weeks at Nissan, who tested EVERYTHING, they have given up. WTF do I do now...? Is it time to move on...? I'm faced with some tough decisions. :( :( :(

...is that one of the turbos is gubbed and my compression problem is due to failed valves. so, options are: replace the gubbed turbo with a standard new one; replace both turbos with standard new ones; replace both turbos with stage 1 new ones; repalce both turbos with stage 2 new ones... :) Car already has HKS EVC-IV boost controller and Central 20 ROM, if I go for Stage 2, what else might I need, and what likely power should I be looking at?

Just interested to now the benefits(if any)of removing the valve and blanking off! Stuart r :confused:

can someone put me on to the right place for an apexi twin 5"stainless exhaust.ive got a straight through stainless system with single 6"megaphone pipe and i want to smarten the car up,do i need a full system from the cats back as ive got stainless straight through already!!!!!cheerz guys

im still having probs with my auto box changing from first to second (it revs out before changing) the gear box was recond 3 thousand miles ago i took it back and they said there was nothing wrong it was the css i changed that and it still does it i have also looked at the tps but that is working ok i do regular gear box diagnostics and all is ok the car is going in for a gear box service tomorrow see what they say this time any ideas please lads. :confused: steve

anyone know the law with regards to the rear lap belts and young kids age 4 and seven? not to keen on sticking them in the back with just laps :( cheers,Clive

Do you still have to 'run in' an aftermarket ECU for 200 miles or so? I know with the stock one it re-learns everything but is it the same with uprated ECU's? With my old JWT ECU there didn't appear to be much difference in the running of the car over 200 miles after a reset, and i'm getting a new one off Chris@Greddy(cheers mate :D ) and was wondering if someone could take it for a test drive the day i put it in.

So after many seperate diagnosis of my car smoking a bit on deccel after high boost, here's what I found; Two local engine tuners said turbo seals Nissan said Stem Seals Two other mechanics said stem seals Turbotech*** said crank case breather system or tubbies three people have said PCV valves specifically So what I have found out is **** ALL!!! Whats the point in trying to get yur car fixed when even so call trained mechanics can't make their god damn minds up!!!!!!!! So far, taken IC's off, some traces of wet oil on passenger side IC dont know if this is normal, I would think not, also passenger side tubby to IC hose was wet with oil, driver side…

anyone on here with a yellow z on the wessex way at about 2.20pm this afternoon (april 1st)?

What are those 2 spongy like pads inside a Nissan air filter box for? Are they replaceable or permanent? Cheers John

I am having a look at the handbook to see what I should get done as a service. I have had the car 6 months, and had the oil changed and break pads checked etc, but I just wondered what should be in a 'full service' ? When should the gear oil be changed? and how is that done? is it different from the engine oil? The car has just done 26k miles and is due for another oil change. What else do I need to make sure is done. It's had the cambelt changed. Fuel filter yet? I just don't know if I should trust what it says in the handbook.

going through the tunnel on vaughan way at about 4pm, didnt see you myself but my brother did

anyone know where the tickover adjustment is?

Autobox has just packed in :cry: it wont select any gear and when it does come in for a second there's a bad grinding noise from the passanger side :rolleyes:

i hope danny/stuart reads this cos he will probably be able to explain my problem to you alot better than i will attempt to. big thanks to danny for running a conzult on my car at th meet last weekend, amazing bit of kit. all seems fine apart from lazy O2 sensors (surprise surprise!) and tps set at 0.2V i know that the tps should be set so that the voltave reads 0.4V but that gives me a very high idle. dannny said the tps is set up right to compensate for another valve/sensor/something at the rear of the engine which also controls the idle. where is this thing i am looking for? what does it look like, any pics please? will i need any special tools to get to…

Hi, A sheared tensioner bolt has caused damage 4 valves in my 300ZX TT. The garage I use near me are saying it is hard to say how much it will cost until they strip it, but are thinking up to £2k. I am think that given this, I may as well just get a recon, or low millage whole engine. Does this sound sensible, and can anybody recommend anyone in the SE east who can even strip it down cheaper, or who sell engines (I live in South West London). Cheers Andy

my jap auto tt is running oil pressure of 8 on the stock gauge !!! any ideas on why?-b4 it goes pop!

How do I fix this kick? In Hold my auto box is smooth, but when I go to A/T I get an uncomfortable kick when it changes to 2nd. The other changes are smooth. Is it possible to adjust an auto box? Thanks Mooch

Can anyone help us out with the size of the upper radiator hose. I need to buy a Greddy adaptor for a gauge sensor and I haven't got a clue which size to get it in mm. Cheers Chris

can anyone tell me please what is an air flow meter and how much is it for a 1993 uk tt manual and will the car start without it? :confused: