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post #1 of 9 Old Jul 10th, 2004, 01:28 AM Thread Starter
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Talking NISSAN 300ZX knocking noise

I own a Nissan Fairlady 300zx it's a 1996 model 2 x 2 non turbo model,
it's got around 14000 miles in the odometer, there is a problem with the
car, there is knocking noise (sounds like a continous tuc, tuc, tuc.......,
the cars runs perfect and smooth, there is no smoke coming from the
tailpipes, the knocking sound is alway there from the time the car is
started, however at 3rd gear, the knocking sound is at very low levels, so
you can hardly hear it, on the other gears including neutral, the sound
can easily be heard,i just change the engine oil to Shell Helix, the sound is
still there.

The problem is that i am in the Philippines where the 300ZX is not common,
so technicians are not so familiar with the model, i drove the car to the
Local Nissan distributor and service center and the say that they might have
to adjust the valves, i have a friend who also suggested that i have the valve adjusted and check the rocker arms, he also said the 300ZX does not have automatically valve adjustment, so the valves has to be adjusted manually. is this correct, i hope you guys out there can give inputs on this.

Are there any parts that need to be replace if in case a valve adjust is done, it's because what i am afraid is that the technicians might need parts and parts for the 300ZX are quite rare here, and i would get stuck with a car that won't be able to run until the parts arrive, some people also suggested not to bother with the knocking sound, since the car runs perfectly.

Lastly can we trace the exact model here of the car thru it's chassis number,
because i am not sure if the car is a 1994, 1995 or 1996 model, is there
any site which we can verify the exact model here.

Hope i can get some help on this

Last edited by alexgoyap; Jul 10th, 2004 at 01:31 AM.
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post #2 of 9 Old Jul 10th, 2004, 01:34 AM
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I don't know if the Phillipeans used VIN numbers but if you do get it and go to www.carfax.com it will give you general info on the car

1987 300ZX Turbo, 5 Speed, TurboXS H-34 BOV, WAI,
Under Construction
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post #3 of 9 Old Jul 12th, 2004, 01:23 PM
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Quote:
Originally Posted by alexgoyap
I own a Nissan Fairlady 300zx it's a 1996 model 2 x 2 non turbo model,
it's got around 14000 miles in the odometer, there is a problem with the
car, there is knocking noise (sounds like a continous tuc, tuc, tuc.......,
the cars runs perfect and smooth, there is no smoke coming from the
tailpipes, the knocking sound is alway there from the time the car is
started, however at 3rd gear, the knocking sound is at very low levels, so
you can hardly hear it, on the other gears including neutral, the sound
can easily be heard,i just change the engine oil to Shell Helix, the sound is
still there.

The problem is that i am in the Philippines where the 300ZX is not common,
so technicians are not so familiar with the model, i drove the car to the
Local Nissan distributor and service center and the say that they might have
to adjust the valves, i have a friend who also suggested that i have the valve adjusted and check the rocker arms, he also said the 300ZX does not have automatically valve adjustment, so the valves has to be adjusted manually. is this correct, i hope you guys out there can give inputs on this.

Are there any parts that need to be replace if in case a valve adjust is done, it's because what i am afraid is that the technicians might need parts and parts for the 300ZX are quite rare here, and i would get stuck with a car that won't be able to run until the parts arrive, some people also suggested not to bother with the knocking sound, since the car runs perfectly.

Lastly can we trace the exact model here of the car thru it's chassis number,
because i am not sure if the car is a 1994, 1995 or 1996 model, is there
any site which we can verify the exact model here.

Hope i can get some help on this
-What grade of oil are you running and how many quarts are you using?
-When you did a oil change did you look at the bottom of the drain pan for metal flakes or chunks?
-Have you done a compression test yet?
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post #4 of 9 Old Sep 12th, 2004, 01:18 AM
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there could be a possibility that its your lifter making that sound i had a 3000gt and it did that as well so you might want to look into that

"pure adrenaline...........................attached to a license plate"

-90' TT ,Greddy boost controller,Blitz turbo timer,HKS exhaust, JWT intake, ecu, & Sport 500 turbo's
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post #5 of 9 Old Jul 10th, 2007, 08:59 PM
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tuc tuc tuc

Hello mate, Hi from Peter in Australia. It is a bit hard to sort your problem from the description you have given.....could be a number of things. Is the noise coming from the front of the engine? For starters you should have a look at this web site in Australia.....
The Australian 300zx Owners Association - Powered by vBulletin This is a very good site for Zed owners...there are over 4000 Z enthusiasts on this site. They also have a great tech section for keeping your Z running great.

This is a very popular vehicle here and lots of information and help. Just go to the site and have a look.....lots of your problems can be solved here. The Z is a quite complicated to keep running smoothly but once it is you will be happy with the car.

I own a 1991 Twin Turbo 2 seater with 150,000 klms on the clock. The car runs great.

I will be in the Philippines August 1 for two weeks......my wife is Filipina. We are looking to purchase some land at Puerto Galera. My email is phuchrak@iinet.net.au if you have any queries about your Z I highly recommend you check out the Aussie Z site.

Hope this was of some help to you.

Regards
Peter.








Quote:
Originally Posted by alexgoyap
I own a Nissan Fairlady 300zx it's a 1996 model 2 x 2 non turbo model,
it's got around 14000 miles in the odometer, there is a problem with the
car, there is knocking noise (sounds like a continous tuc, tuc, tuc.......,
the cars runs perfect and smooth, there is no smoke coming from the
tailpipes, the knocking sound is alway there from the time the car is
started, however at 3rd gear, the knocking sound is at very low levels, so
you can hardly hear it, on the other gears including neutral, the sound
can easily be heard,i just change the engine oil to Shell Helix, the sound is
still there.

The problem is that i am in the Philippines where the 300ZX is not common,
so technicians are not so familiar with the model, i drove the car to the
Local Nissan distributor and service center and the say that they might have
to adjust the valves, i have a friend who also suggested that i have the valve adjusted and check the rocker arms, he also said the 300ZX does not have automatically valve adjustment, so the valves has to be adjusted manually. is this correct, i hope you guys out there can give inputs on this.

Are there any parts that need to be replace if in case a valve adjust is done, it's because what i am afraid is that the technicians might need parts and parts for the 300ZX are quite rare here, and i would get stuck with a car that won't be able to run until the parts arrive, some people also suggested not to bother with the knocking sound, since the car runs perfectly.

Lastly can we trace the exact model here of the car thru it's chassis number,
because i am not sure if the car is a 1994, 1995 or 1996 model, is there
any site which we can verify the exact model here.

Hope i can get some help on this
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post #6 of 9 Old May 7th, 2009, 06:08 PM
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i have a nissan 300zx tt1994 i need the wiring harness nissan stop making them.wish other year harness i can use?
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post #7 of 9 Old May 7th, 2009, 06:11 PM
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nissan 300zx tt 1994

Quote:
Originally Posted by spock1 View Post
Hello mate, Hi from Peter in Australia. It is a bit hard to sort your problem from the description you have given.....could be a number of things. Is the noise coming from the front of the engine? For starters you should have a look at this web site in Australia.....
The Australian 300zx Owners Association - Powered by vBulletin This is a very good site for Zed owners...there are over 4000 Z enthusiasts on this site. They also have a great tech section for keeping your Z running great.

This is a very popular vehicle here and lots of information and help. Just go to the site and have a look.....lots of your problems can be solved here. The Z is a quite complicated to keep running smoothly but once it is you will be happy with the car.

I own a 1991 Twin Turbo 2 seater with 150,000 klms on the clock. The car runs great.

I will be in the Philippines August 1 for two weeks......my wife is Filipina. We are looking to purchase some land at Puerto Galera. My email is phuchrak@iinet.net.au if you have any queries about your Z I highly recommend you check out the Aussie Z site.

Hope this was of some help to you.

Regards
Peter.
hey! i hhave a 300zx tt 1994.ineed the efi wiring harness do you know wish other model of harness fit on 1994 zx tt
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post #8 of 9 Old May 7th, 2009, 06:14 PM
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Joined: Apr 2009
Posts: 11
Quote:
Originally Posted by spock1 View Post
Hello mate, Hi from Peter in Australia. It is a bit hard to sort your problem from the description you have given.....could be a number of things. Is the noise coming from the front of the engine? For starters you should have a look at this web site in Australia.....
The Australian 300zx Owners Association - Powered by vBulletin This is a very good site for Zed owners...there are over 4000 Z enthusiasts on this site. They also have a great tech section for keeping your Z running great.

This is a very popular vehicle here and lots of information and help. Just go to the site and have a look.....lots of your problems can be solved here. The Z is a quite complicated to keep running smoothly but once it is you will be happy with the car.

I own a 1991 Twin Turbo 2 seater with 150,000 klms on the clock. The car runs great.

I will be in the Philippines August 1 for two weeks......my wife is Filipina. We are looking to purchase some land at Puerto Galera. My email is phuchrak@iinet.net.au if you have any queries about your Z I highly recommend you check out the Aussie Z site.

Hope this was of some help to you.

Regards
Peter.
i have a nissn 300zx tt 1994 , i need the wiring efi harness but is out of stock any where,do you know wish one will fit on my 1994 ether 1993 or 1995
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post #9 of 9 Old May 7th, 2009, 10:05 PM
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Location: NJ (Philadelphia area)
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Quote:
Originally Posted by alexgoyap View Post
I own a Nissan Fairlady 300zx it's a 1996 model 2 x 2 non turbo model, there is knocking noise

i drove the car to the Local Nissan distributor and service center and the say that they might have to adjust the valves, i have a friend who also suggested that i have the valve adjusted and check the rocker arms, he also said the 300ZX does not have automatically valve adjustment, so the valves has to be adjusted manually. is this correct, i hope you guys out there can give inputs on this.
The 300ZX uses hydraulic valve lifters which are non adjustable. The noise could be due to air in the lifters or one or more lifters are worn out.

KA-T for life, yo!
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