Lada Parts UK

NIVAD · Silver Joined: 15 Jul 2005 Posts: 790

I read an article about old 4 speed gearbox's having a lower first gear.

On Baxters site i think and he was on about lada cars.

My question is what ratios where in the old 4 speed out of a niva from about 1987?

Cheers
_________________
Paul
Birmingham
Niva Pickup diesel,niva 1600,Disco, mini,Rover with pug engine,Vw Sharan.

GadgetBoy · Posted: Wed Apr 07, 2010 8:40 am Post subject:

Same as the first four on the 5-speed.
_________________
GadgetBoy
'96 Niva 1.7i
Belfast, N. Ireland
http://www.ladaniva.co.uk

NIVAD · Silver Joined: 15 Jul 2005 Posts: 790

thought as much just hoped it might be same as old cars.

Cheers
_________________
Paul
Birmingham
Niva Pickup diesel,niva 1600,Disco, mini,Rover with pug engine,Vw Sharan.

GadgetBoy · Posted: Wed Apr 07, 2010 9:03 am Post subject:

The boxes have always had the same 1-4 ratios. The diffs were used to vary the final drive.

The 5-speed box is a 4-speed with the extra gear added rather crudely. Hence the need for the overfill to keep the 5th speed cluster adequately lubricated.
_________________
GadgetBoy
'96 Niva 1.7i
Belfast, N. Ireland
http://www.ladaniva.co.uk

baxter · Posted: Wed Apr 07, 2010 1:42 pm Post subject:

Aye, the Riva 1200 is the only 'box with the low gears.

Neil Chowney · Posted: Wed Apr 07, 2010 11:11 pm Post subject:

Gonna have to disagree a bit here chaps, I have the ratios as follows.

4 speed: 1600 model (as a comparison)
First 3.242:1
Second 1.989:1
Third 1.289:1
Fourth 1:1

5 Speed
First 3.67:1
Second 2.10:1
Third 1.36:1
Fourth 1:1
Fifth 0.82:1

The layshafts have different numbers of teeth on them as well which corroborates this.
_________________
Neil, Whitchurch, Hampshire
Cossack with Lancia 2.0 twin cam (Mr Lump Hammer)
Smart car (Mr Eco)
Rover 90 (1954) (Mr pipe and slippers)
Mini Cooper D (Mrs go-kart mark II)

Stars on a reasonably priced car......

baxter · Posted: Thu Apr 08, 2010 1:57 am Post subject:

Good point Neil.

Although the ratios I got from several Russian sites a while ago showed the 4 and 5 speeds to be the same 1-4 ratios for Nivas (and 2104/5/7 salons):

4 speed
1 1:3.667
2 1:2.100
3 1:1.361
4 1:1.000
R 1:3.53

5 speed:
1 1:3.667
2 1:2.100
3 1:1.361
4 1:1.000
5 1:0.82
R 1:3.53

But I have also read of a couple of sources with the ratios you list (which are also the same as the 2016 1600 saloon) for a Niva 4 speed.

Presumably either set of ratios also could have been originally fitted to 4-speed Nivas - I wonder if there were 2 different ratio 4 speeds used in the Niva (ie the 2016 and the 2014/5/7 'boxes)?

Anyone want to check the parts manual?

Either way the 1200 is still the only low gear 'box swap.
_________________
1990 Niva 1600, Weber & 2" lift
Baxter's Temple of Niva Site

Lada & Korean Parts · Posted: Thu Apr 08, 2010 8:15 am Post subject:

parts cat for niva does show different countershaft & input shaft (4th gear) between 4 & 5 speed.

actual gears themselves are the same through

(different mainshaft/extension housings/mounting bracket also)
_________________
PARTS SUPPLIED FOR:
Lada,Ssangyong,Daewoo,Hyundai,Kia,Festiva Rocsta

www.ladaparts.com or andrew@ladaparts.com

NIVAD · Silver Joined: 15 Jul 2005 Posts: 790

Ill stick too the transfer box mod then for now too lower ratios?? Very Happy

_________________
Paul
Birmingham
Niva Pickup diesel,niva 1600,Disco, mini,Rover with pug engine,Vw Sharan.

SimonAllen · Posted: Thu Apr 08, 2010 9:24 am Post subject:

I would paul, as if Niel is correct ten the 4 speed is actually a higher ratio than the 5 speed and will make the problem even worse...
_________________
1996 2.9v6 lada niva auto

Car mechanical/electrical work undertaken in telford. Doesn't have to be a lada! PM me for details.

baxter · Posted: Thu Apr 08, 2010 12:06 pm Post subject:

baxter · Posted: Thu Apr 08, 2010 12:20 pm Post subject:

Ahh, a man with parts cats for the Niva and saloons...

TheRealNivaman · Gold Joined: 15 Nov 2007 Posts: 1016 Location: New Zealand

I have in my Niva bible ratios for both four and five speed boxes.
Four speed
1st, 3.75
2nd, 2.30
3rd, 1.49
4th, 1.00
rev, 3.87
Five speed
1st, 3.67
2nd, 2.10
3rd, 1.36
4th, 1.00
5th, 0.82
rev, 3.53
Seems to me Vaz had a lot of different ratios to suit different cars and Nivai.
My book has Vaz 2121 and 21211.

baxter · Posted: Fri Apr 09, 2010 5:35 am Post subject:

GadgetBoy · Posted: Fri Apr 09, 2010 8:04 am Post subject:

GL4 or GL5?

Lada gearboxes = Can of worms!
_________________
GadgetBoy
'96 Niva 1.7i
Belfast, N. Ireland
http://www.ladaniva.co.uk