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Discussion Starter #1
the following is quoted from gtrowner.com

"The transmission is considered to be the weak point of the Skyline and is very costly to replace if it goes wrong. The Baulk rings within the gearbox grind when changing gear, generally when changing down. The gears most prone to wear are Fourth and Fifth and this can be checked by changing up from third to fourth at high revs. When test driving the car, you will need to take it on a motorway and change gears quickly to notice if there is any grinding. The transmission has also got to cope with the power split between the front and rear axels. Nissans name for this is ATTESSA, so look out for any warning light on the dashboard to indicate any problems with this, but it is generally very reliable."

This is happening to me........when changing from 3rd to 4th at high rpm, i'll hear some noise from the transmission....

pls. adv. how to get rid off that noise or which part of the transmission is not working. it's been like that since a month ago and i tend to shift slower when changing from 3rd to 4th.



michael:(
 

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Hi,

I had the same problem not long after I purchased my R33, it was the synchro's which had worn out. The gearbox had to be removed/stripped and new synchro's fitted to 3rd and 4th gear, luckily it was covered under warranty as the bill was around £700.

Good Luck,
Mike.
 

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G/Box

I had the same prob
Lived with it for a year or so it only gets noisier not better.
Had my gearbox stripped and checked 26 worn/damaged items!

ouch :(

Still had it done anyway by Option-Motorsport who removed the box and sent it to Hewland for the work.

Sucess :D

Took 2 weeks as 2 gears had to come from nismo in Japan but what a difference, now a new box, short shift kit and a single metal plate clutch is unbelievable and well worth it.

I would sugest you get it done because it will never get any better and the crunching noise gets louder.

Best regards :cool:
 

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Discussion Starter #4
hey alan,

so how much is it to get the job done.

in my country, an used gear box will cost me US$2,000.00 installed.


and mike, you're soooooooooo lucky that your car is still warranty.

michael.:(
 

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LOTS

Mine cost between £1500-£2000
It all depends on what is damaged or needs replacing
A bit of an unknown as you don't know untill its in pieces on the floor.
If you get a 2nd hand one how do you know it does not have the same fault as 4th syncro is the weak point???

Best regards :D
 

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Discussion Starter #6
4TH GEAR SYNCRO

ALAN,

I'LL BE BRINGING A MECHANIC WITH ME TO LOOK AT THE USED ONE IN PIECES FIRST.

THE REASON WHY BUYING AN USED ONE IS TO MINIMIZE THE LABOUR COST.

IN MY COUNTRY, JUST TO EXAMINE WHAT THE PROBLEM IS WILL COST ME US$1,300.00. AND THEN ADD PARTS COST.

LET'S ASSUME 4TH GEAR SYNCRO IS THE ONLY DEFECTIVE PART, HOW MUCH IS IT TO GET A NEW ONE? (DO THEY SELL SEPARATE SYNCRO OR DO I NEED TO BUY A NEW SET)

SHUD I ORDER IT FROM NISSAN OR ANY OTHER SOURCE?
PLS. ADVISE.

MICHAEL.

:confused:
 

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6th speed

Hi,

why not take this opportunity to upgrade ?

you could put the 6 speed gertrag box in from an r34, or get a custom one made by one of the performance places.

Obviously not cheap but if it is coming out anyway....


hope it works out ok.

Steve
 

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About 9 months ago I stripped my R33 VSPEC gearbox down as the car came with a 5 speed OZ Giken gear set and I wasn't sure if the noises I was hearing were the gears as they should be or if there was something else not right. No one I could find could tell either so the only alternative was to strip and rebuild as required.

I bought every single bearing possible and also all the syncro's as I had trouble here and there and wasn't sure if they were dodgy or if it was my left foot that was dodgy !! :)

Anyhow the sychro's were $ 120 New Zealand dollars which is about 35 to 40 pounds........not how much that is where you are but you should be able to figure it out.

Bearings cost about $ 900 NZ, it's about $ 3.1 - 3.2 to the pound .......so about 300 quid.

It took my mechanic about 40 hours because 2 of the gears were well on the shaft, but with some new extraction tools and a heavy press they came out. It's the labour that's the pricey bit.......I helped where possible, but still !!

I can't say I ever had anything wrong as far as function goes, or at least I thought not, but I've got to agree that once rebuild it was soooo much smoother.......it's well worth it..........that extra HP doesn't do much good if you can't get it into gear right !! :)

Hope this helps...............

Cheers
Fraser
:smokin:
 

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Parts

I would imagine Nismo would be able to supply the parts req
As far as cost it all depends where you live and the exchange rate.
In England there are a few places but Hewland build the touring car boxes for racing and have done quite a few 33,s
The problem now is that people are racing 34,s so parts are getting fewer and fewer.
So hunt around for the best price
You can get any part for the gearbox idividually but make sure you check ALL the parts
Theres no point in replacing all the syncro,s and finding out afterwards that a gear was worn causing the cruch into 4th.
Good hunting

Best regards
 

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Discussion Starter #10
4th gear

so the conclusion will be break my gear box into pieces and figure out what is wrong and then get the right parts. (instead of buying an used one)

that's gonna cost me a lottttttttt of money in hk......and one more thing, none of them are GTR specialist......urrrrrrrrrrrrrr

is the r33 gear box complicated or is it just a normal one?
i hope our mechanics know wat they're doing.........

wish me luck.

michael.
 

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It's not overly complicated as far as gearboxes go..............it's a very Nissan box............. They're all version similar in design it's just that the GTR one is much larger and more robust.

The main thing to watch out for when they're reassembling it is that they bleed the fluid properly from the torque transfer system. If you get any air in there it causes more trouble........it's not rocket science, but they need to be aware if it, as it's not something you have to worry about in a normal gearbox.

It's definitly not worth using second hand bits...........no matter what the cost saving.............that's why I replaced all bearings even though I wasn't convinced I had any faulty............it's just not worth it.

Cheers
Fraser

:smokin:
 

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Bearings

It is not worth the uncertainty
Change all the bearings and syncros
At least you will know that the box is brand new and will not cause you probs in the future
Good luck
Best regards
 

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Discussion Starter #13
transmission

thanks alot guys.

pls. tell me which tranny oil you guys recommend?

I called around and asked yesterday and one shop owner told me that all i need to do is to change my tranny oil to the ones which have the most "protective" ingredients and my problem will be solved. (GTR RACING OIL, BLAH BLAH BLAH)

shud i do that first and see what happens?

Is redline 75w-90 ok? i changed to this one about 4 months ago and i felt less smooth afterwords.

pls. help.

michael.

(i just installed the new evc last sat. and was going to installed the hks oil cooler kit this sat. and now i guess i better solve the 4th gear problem first)
 

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Discussion Starter #14
TRANNY OIL.

experts,

pls. kindly advise if there's any tranny oil in the market which may solve my problem.

tks. a lot.

michael.

:confused:
 

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Discussion Starter #15
oil

can't stand that sound anymmmore

i'll buy some hks gear (70w140) & engine oil (15w50)tomorrow and see if it's gonna help.

will keep you guys posted.

michael.:(
 

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Re: Parts

Alan said:
...
In England there are a few places but Hewland build the touring car boxes for racing and have done quite a few 33,s
The problem now is that people are racing 34,s so parts are getting fewer and fewer.
Alan

Did Hewland build the R32 GTR touring car boxes ?
If so they must have been H-pattern I suppose.

Andre.
 

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Hewland

Hi Alan, Andre and all.
Having supplied some Hewland transmissions to a couple of Japanese GT teams, and still helping them from time to time with spares (not Skyline I hasten to add), out of complete curiosity I asked Hewland earlier in the year if they had an involvement in any way towards the GTR and its standard transmission, they explained that one of their sub agents are based at/near Silverstone so its not that 'Hewland' rebuilt your gearbox Alan, but rather that one of their dealers did. Thats how the info came to me anyway. Hewland as a company are in the business of gearbox manufacture (the whole thing not just the bits inside),they dont normally have any interest in adapting other peoples products. With their history of success in the motorsport arena, why should they need to bother !
Tim (sceptical as usual)
 

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so what would you lsay is the average milage that this needs to be done on average. What have your cars done before they required this re-haul ?
 

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It won't be mileage related, more to do with driving style and useage. Do a lot of track work with constant quick changes and it'll happen much sooner. Mine has started doing the same, 3rd to 4th, and my car hasn't done 30k yet.
 

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R34Nismo

Fully depends on torque and the usage of the box. A standard box in a standard car will last for a very long time indeed. I've just replaced a std Getrag gearbox with a dodgy 3rd gear that has been in the car since it was first built. It since did several races, trackdays etc.

Andre.
 
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