help Z hurt!

Nissan 300ZX technical discussion forum: Maintenance, performance, installations, modifications, how-to's and troubleshooting.
Kushpushk
Posts: 40
Joined: Thu Oct 01, 2009 8:45 am
Car: 1993 Nissan 300zx n/a
2 Seater

Post

I was driving earlier tonight i was down shifting into fourth but accidently went to second i was cruzing bout 80mph rpms went to redline at about 7400 it was released in second gear for .05 seconds but right after, i felt extreme powerloss i stopped at a gas staion up the road and popped the hood there was a little smoke smelled like somthing burning. kinda coming from the rear of the engine. started it back up and it was sputtering sounded kinda like a miss, there is no knocking sound, common lifter tick, posibly the vtc springs rattleing, doesnt smoke before or after. the car was shaking at idle, when driving home when gas was aplied i could feel it lurching. does anyone have any ideas to my problem. thanks in advance. :frown:


User avatar
chaunceysj
Posts: 166
Joined: Sun Jun 07, 2009 9:25 pm
Car: 1991 300zx 2+2 (tt swap coming soon)
2004 prius
1999 safari
2009 aura
1972 beetle (still waiting)
Location: San Jose Cali

Post

is there still smoke? or was it just that one time?

User avatar
es.biggs
Posts: 2120
Joined: Sat Feb 20, 2010 10:32 am
Car: 1990 300ZX 5sp NA
Location: Charlotte, NC

Post

Are you getting any valve noise? Lifter has a different sound...when the car is revved past the redline "valve float" becomes possible...where the valvetrain can not keep up with the speed of the crank/cams. It is possible to bend a valve that way. Who knows though, you may have gotten lucky! Hopefully right? :)

You could always compression test and see how it looks.

Kushpushk
Posts: 40
Joined: Thu Oct 01, 2009 8:45 am
Car: 1993 Nissan 300zx n/a
2 Seater

Post

there was smoke only the once when i started it again there was no smoke just sputterig and major power loss. yeah i hope i did get lucky lol ill try to do a test tomorrow.

Kushpushk
Posts: 40
Joined: Thu Oct 01, 2009 8:45 am
Car: 1993 Nissan 300zx n/a
2 Seater

Post

I replaced some fuel lines that were leaking leading to the regulater still major powerloss the engine cuts out. i heard a rattling noise sound like timming belt is it posible it could have jumped?

User avatar
xclusivez32
Posts: 316
Joined: Wed Apr 08, 2009 6:52 am
Car: 1990 300zx 2 seater limo
tt engine build
2004 gmc serria
Location: Troy, NY

Post

compression test it like stated above and that will help you find the problem, its easy just go to the autozone or whatever and rent it

User avatar
es.biggs
Posts: 2120
Joined: Sat Feb 20, 2010 10:32 am
Car: 1990 300ZX 5sp NA
Location: Charlotte, NC

Post

Yeah man I would really do the compression test if you can. If you can't find it for rent anywhere, Sears has the tool for around $50 last time I saw it.

User avatar
redneck zx
Posts: 72
Joined: Sun Sep 06, 2009 6:58 pm
Car: 1991 300zx TT
Location: montesano/olyimpa wasington

Post

when driving dose it shake? jack up car and check the transmission it could have moved back!! happend to me messed up alot!!make shure the bellhousing is ware it should be!
if it jumped timing mostlikely when you rev up it will cut out and sound wered and not allow you to rev up high

User avatar
Chattzx
Posts: 1495
Joined: Wed Aug 26, 2009 5:02 pm
Car: 90 Z32
Location: Chattanooga, Tennessee

Post

ouch man you gotta be careful. Hope everything turns out ok. Im sure its fine after doing that just once.

Kushpushk
Posts: 40
Joined: Thu Oct 01, 2009 8:45 am
Car: 1993 Nissan 300zx n/a
2 Seater

Post

yeah im a total tard, when i was driving home it was lurching, sorta like it was running out of gas. no this isnt slingblade. lol ive been exploring the tt swap more does any one have any info on ordering a jdm front clip? broke college student :cry: good saver tho thanks guys :bigthumb:

User avatar
es.biggs
Posts: 2120
Joined: Sat Feb 20, 2010 10:32 am
Car: 1990 300ZX 5sp NA
Location: Charlotte, NC

Post

lol good job :P

just fyi, tt swap is not something you wanna do if you're a broke college student...it's very expensive and there is no way around that! the way i look at it is, maybe later on in life i can do it, and if not, ill just buy another one, or maybe even a newer Z lol

Kushpushk
Posts: 40
Joined: Thu Oct 01, 2009 8:45 am
Car: 1993 Nissan 300zx n/a
2 Seater

Post

yeah ive thought about that too since im broke lets go with hypothetically lol but a front clip would have almost everything wouldnt it? just a basic tt swap, i have a 93 5spd so i could mod the ecu right ?

User avatar
es.biggs
Posts: 2120
Joined: Sat Feb 20, 2010 10:32 am
Car: 1990 300ZX 5sp NA
Location: Charlotte, NC

Post

Not sure about the ECU but you don't wanna put used turbos on man. If possible you want new ones, or even just some used ones from a trustworthy source where you know the shape they are in. Then you would def want to do the 120k kit. So you would be about ready then, but it'd also be good to have a stack of money aside for a clutch if needed, and other things like motor mounts, transmission mount, hoses, etc (things you want to replace during motor pull). You are well over another $1,000 at that point. Probably over $1,500. Then add the price of the clip, and that's a more ballpark number. Def wait for the guys who have done it to chime in...marty comes to mind haha

marty1mc
Posts: 733
Joined: Sat Jan 16, 2010 1:51 am
Car: 1990 Nissan 300ZX TT - Z owner since 2003
Location: Fuquay Varina,NC

Post

Kushpushk wrote:yeah ive thought about that too since im broke lets go with hypothetically lol but a front clip would have almost everything wouldnt it? just a basic tt swap, i have a 93 5spd so i could mod the ecu right ?
I bought the equivalent of a clip for about $3k. I still spent over $10k by the time I was done. Many of the things were already upgraded with the setup I bought as well. It came with Stillen SMIC, JWT ECU, RPS sport clutch w/ only 8k on it, newish turbos (less than 15k miles on them). The timing belt was also recently done. Believe me, there is more than just the clip.

With a clip, you have at least 50/50 odds the turbos will be toast or at least weak. You will need a 120k kit for it at $600 (no labor included). Plus usually you need motor mounts @ $160. The oil pans on the clips tend to be smashed, so there's another $200, If it doesn't come with a front bumper in good shape, you need one of them too....

The bottom line is if you really want a Twin Turbo, sell your car and go buy one in nice shape. In the end, it's significantly cheaper...

User avatar
es.biggs
Posts: 2120
Joined: Sat Feb 20, 2010 10:32 am
Car: 1990 300ZX 5sp NA
Location: Charlotte, NC

Post

my motor mounts costed me ~$50 :D

never thought I'd say this, but thank you Ford for doing something right lol
with minor modification, the mounts from the old straight 6 f150 work fine!

Kushpushk
Posts: 40
Joined: Thu Oct 01, 2009 8:45 am
Car: 1993 Nissan 300zx n/a
2 Seater

Post

ahh lol i see, well iif i were to swap to the tt i wouldnt do to many upgrades but i understand your point. ugh the song i didnt want to tune in to lol ill bee on the look for a factory blue ttz thanks all! after i fix my truck for winter i will do the timing belt on the 300 untill then its Ranger time!!!

Kushpushk
Posts: 40
Joined: Thu Oct 01, 2009 8:45 am
Car: 1993 Nissan 300zx n/a
2 Seater

Post

Alright, just got done doing the 60K maitnace. Runs beautifuly while i had it apart i saw vacume lines i replaced and the #3 saprk plug it was super fouled and the coil plug was broken so it wasn't making good conection. So thankfuly nothing else was wrong other than what i listed and the timing belt being streched i think the tensioner was so rusted i dont think it was doing much.
Thanks everyone who contributed and im still wanting a tt of course :biggrin: but i think i should wait till i can afford her.

User avatar
es.biggs
Posts: 2120
Joined: Sat Feb 20, 2010 10:32 am
Car: 1990 300ZX 5sp NA
Location: Charlotte, NC

Post

Glad you got her all caught up :)

Good job man!

User avatar
jesssam28
Posts: 35
Joined: Mon Jul 20, 2009 8:35 am
Car: 1990 Nissan 300zx
Contact:

Post

damn bro, sound like rough times to me...
you should probably do a deeper inspection, assuming that you already did some sort of inspection
i don't think something really bad could have happened to your car. i really hope you didnt.
i did a swap on my car all by my self, and it not hard at all, AT ALL

Kushpushk
Posts: 40
Joined: Thu Oct 01, 2009 8:45 am
Car: 1993 Nissan 300zx n/a
2 Seater

Post

yeah been driving her everything is grand:)but its one thing after another, now the clutch slips under hard accel. just before this whole mishap i put a Z1 6 puck and pres. plate so i called em they want pics of the clutch, i guess to see if it is faulty.when i recived the clutch there were chips in the pads but i had to put it in i needed wheels. So now i gotta pull the transmission out and be out of a car for however long it will take for them to send me a new one. whis i had the extra dough to get some headers!

CrazedZ32Owner
Posts: 411
Joined: Fri May 28, 2010 11:59 am
Car: 91 Z32 TT(no motor), 2008 350Z Nismo, 05 Pontiac Sunfire speed machine!!! :)
Location: Lehigh Valley PA

Post

a rapid spike in RPM's like will damage even the best of clutches


Return to “300ZX (Z32) Technical”