If it's whining that bad, don't use it !! It probably has worn bearings, which are letting the gears run slightly out of mesh, which not only knackers the bearings, but will also enduce wear on the gear teeth.

So I would get it out and have a look inside, post pics here and get an opinion on what you find.

 

Hi Huw

Sorry I didn't get chance to talk to you at Beaulieu yesterday.

I have a Haynes manual which shows the 5 speed box for a S30 which you can borrow if needed although I'm not sure it would be the same gearbox layout.

I had a similar problem on an old Toyota 5-speed box quite a few years back and it was the main shaft bearing worn. Boy did it scream!!!

You should be able to pick up new bearing races on line fairly easily if you know the inner and outer diameters & I can't understand why no gearbox repair companies will take it on. getting a syncro cone or a selector fork would be a problem but not bearing races and they ought to know how to strip and reassemble a gearbox. Selectors or syncro would not make that sort of noise.

I can drop the manual round if needed and I don't mind giving you a hand if you need some help getting the box out. From then on, I would advise plenty of photos!!

PM me if you need anything.

Cheers

Paul

 

You have the same box as the '77/'78 euro 260Zs and 5spd (late) 280Zs.

The parts will be available :https://www.californiadatsun.com/transmission/transmission-accessories/

 

No probs!

Whilst at Beaulieu we were talking to a chap that wanted to swap out an auto box for a manual in his 240Z (the gulf blue one).

The general consensus was to look for a 200SX box rather than go for one out of an S30. I have also seen previous posts that point in that direction. I wonder if one of those would fit in yours as there seem to be a few advertised on e-Bay.

http://www.ebay.co.uk/itm/Nissan-20...562?pt=LH_DefaultDomain_3&hash=item33a660103a

http://www.ebay.co.uk/itm/Nissan-200-sx-turbo-gearbox-/201396985816?hash=item2ee4321fd8

Perhaps someone on here could advise whether that would be an option. There seems to be a few versions of them though and I don't know which one could apply.

 

Best insight on it all is from a non tech guy would be to contact Pmac or Steve Kiddell as they were the people who did mine I believew they are not doing them any more but sure they would point you in the right direction

 

Rebuilding a stock Z box is a bit of a pain, the end bearings come off fine once the bell housing is off (a few bolts and a fiddly C clip) but if you need to go further then you'll need some really long bearing pullers and be prepared to strip the entire gear cluster out.

Much easier to find a box from a 200sx (S14 or S14a or indeed the S13) and fit a modified bell housing and prop, Pete and I used to do it (did loads including Mr Burns) but have moved onto doing our own cars for now, they are still to be found but the prices for good used ones have upped significantly over the years, inspection is key, look for wear on the gear teeth faces, bearing and excessive synchro wear/missing teeth etc.

 

I used to be in the SXOC, you could keep an eye on: http://www.sxoc.com, there is bound to be some useful info on there, and you may hear of one for sale there too.

 

I just bought a bearing and seal set for my 1973 5-speed gearbox from SW Motorsport in Australia. Take a look at swmotorsport.com.au
He also sold me a 1st & 2nd gear synchro sleeve (used) and a synchro ring (new).
Tell Stewart at SW what you need and he might be able to help.

 

Yes but in the end your still left with a fairly poor item with new bits in it, where as the S14 conversion transforms the car.

 

.....you're....

For the rest - Skiddys' exactly right and you have to drive one with that box to believe it !

 

It is a no brainer as it makes the car a delight to drive

 

Don't be lazy. Use the 'search' function!