OK so i've put in Redline MT90 (about x3 litres) and also some Molyslip.

 

Driven about 300 miles to Cornwall and still the gears whine in 1-3.

 

Soon as i dip the clutch when idling the noise dissapears completely or if i'm in 4th or 5th again no noise whatsoever! :headvswal

 

Does this mean i need to pull the gearbox apart and fix it or can i just run it with the noise until it goes bang!!!!!!

 

Any ideas as i can really afford a new gearbox just yet!

 

Cheers

 

Alex

That should of course be can't really afford it!!!!

Have you checked that the Rubber gaitors beneath the Gearstick gaitors are not torn ? Its quite suprising the noise difference between a torn gaitor and a good one, its not abnormal for gearboxes to whine, but just usually can't hear it.

OK so i've put in Redline MT90 (about x3 litres) and also some Molyslip.

 

Driven about 300 miles to Cornwall and still the gears whine in 1-3.

 

Soon as i dip the clutch when idling the noise dissapears completely or if i'm in 4th or 5th again no noise whatsoever! :headvswal

 

Does this mean i need to pull the gearbox apart and fix it or can i just run it with the noise until it goes bang!!!!!!

 

Any ideas as i can really afford a new gearbox just yet!

 

Cheers

 

Alex

 

Input shaft bearing bud unfortunatly

 

Noise will occur with clutch pedal up if its an iput

 

If noise appears with pedal down its just the clutch release bearing

 

Either put up with the noise, which to be fair wont harm the gearbox and should last for many miles without issues, or rebuild /replacment gearbox.

 

as david said check the gators under the console are not split/loose and replace if so as it can cause a similar noise as air rushes up between the transmission tunnel

 

to answer your question you can drive the car with a worn input bearing as you have replaced the oil it should last for thousands of miles, turn the stereo up for now.

 

HTH greg

Soon as i dip the clutch when idling the noise dissapears completely or if i'm in 4th or 5th again no noise whatsoever! :headvswal

 

I had this with my avensis......dip the cluch and ta da no noise, take foot off the clutch and the noise magically re-appeared.

 

Turned out to be something like the secondary thrust bearing? I don't know its what some mechanicy type bloke told me. The middle bit that pops out the big end of the gearbox..........the noise got worse over the next 20,000 miles......but still didn't break down. Just gradually turned from a whine to a rattle

 

I enventually treated it to another gearbox from a local scrap yard!

Input shaft bearing it is then!

 

Anyone have any exploaded views of the gearbox?

 

Would like to see where the Input Shaft Bearing is????

 

Cheers

 

Alex

If it was the input shaft bearing then it would do it in all gears. Check the gaitor, thats my bet :)

Might be layshaft bearings. I had to do this on mine. Exactly the same symptoms as yours, and a pig of a job to get the box apart fully ;)

 

As greg said, it WILL last for ages like that, so just turn the stereo up or knock some holes in your exhaust baffles :tongue: :dance: :wack:

How much did it cost in the end Dunk????

Might be worth having a look at getting a new one through Nissan. As silly as it may sound, if you get a 96onward TT GB, they are much better built with stronger bearings and better syncros. I think they retail for around £1,000

 

Gearbox reconditioning will cost £600 - £700 at least and as far as I know, there are some parts you can't get.

Not a bad price for a brand new gearbox............then there's the fitting!!!!!!!

 

I've changed a gearbox and overdrive on my old Triumph Spitfire in a few hours but not sure if i should attempt one on the 300..........then again how hard could it be???

We can supply and fit a brand new box for £1300 all in!

Is that brand new as in a post 96 TT box with stronger bearings better syncro......?

 

Also how long would fitting take?

Is that brand new as in a post 96 TT box with stronger bearings better syncro......?

 

Also how long would fitting take?

 

 

yes that is brand new 98 + the latest box and fitting will take about 2 hours !

Nissan OEM 300ZX 98+ Spec Transmission Twin Turbo

 

 

Description: This is the newest and latest release of the 300ZX. As we all know the earlier version of the 300ZX Transmissions have soft synco rings, and cause grinding in gears. With this latest release from the 98+ Z32 from Japan, the syncro rings, along with a few new designed gears, there is no more grinding

States it as being the 96onwards on Z1....with the same script...

 

http://www.z1motorsports.com/product_info.php?products_id=1684&osCsid=85a20be5890e02657594b9b0f68a8b0d

 

96+spec TT 5speed Transmission

 

This is the newest and latest release of the 300ZX Tranny. The earlier version of the 300ZX Transmissions have soft synco rings, and cause grinding in gears. With the latest release from the later model Z32 from Japan, the syncro rings, along with a few new designed gears, this transmission is designed to last.

 

Don't think Nissan left it till the last production year to release a new GB...maybe they did. Something's wrong somewhere. lol

States it as being the 96onwards on Z1....with the same script...

 

http://www.z1motorsports.com/product_info.php?products_id=1684&osCsid=85a20be5890e02657594b9b0f68a8b0d

 

 

 

Don't think Nissan left it till the last production year to release a new GB...maybe they did. Something's wrong somewhere. lol

si stop picking :smash:

 

it dont matter does it? best leave these posts alone all it does is wind certain people up and you know what your doing ;) :tongue:

 

all the best

I think it's an important point if your looking for a second hand one....

si stop picking :smash:

 

it dont matter does it? best leave these posts alone all it does is wind certain people up and you know what your doing ;) :tongue:

 

all the best

 

Erh? Not having a go bud, but how is it winding people up? Just saying either Z1 is wrong or someone else is. I dunno whether it's a 96 or 98. :confused:

Erh? Not having a go bud, but how is it winding people up? Just saying either Z1 is wrong or someone else is. I dunno whether it's a 96 or 98. :confused:

paul put above 98+ you doubted him saying being the last years off production why would nissan produce an uprated gearbox LOL. It dont bother me to much bud just walk past things without tripping over and kicking the cat if you know what i mean :wack:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

to answer the question it is 96 onwards :tongue:

:)

I expect Paul will check with supplier (which I know is not Z1) tomorrow.

It will cost over £1000 to have new syncros fitted! I know from experience :) Nissan will now only supply the uprated parts and you need to buy a full kit totalling ~£850 plus vat, as the new syncros are much bigger. Add to this the labour costs and you're well over £1k...

How much did it cost in the end Dunk????

 

Going from memory (been a couple of years now...) I got 3 or 4 bearings from Nissan and the total was around £100

 

HTH

 

Regards,

 

Rob

Just to add.......... Labour was free because I did it myself :)

States it as being the 96onwards on Z1....with the same script...

 

What month? :rofl: :rofl: :rofl: