Page 1 of 2

What do I need linkage wise to convert mine from 4spd 2 5spd

Posted: 04 Jan 2010, 19:42
by slee86
Hiya,

Ive fitted a 3h box to my 1y engine, I have the full 5 speed linkage from the 1.6td, do I have to fit the full linkage front to back? or can i just fit the rear part of the linkage?

Do the 1.6td have a different floor? as the gearstick is much shorter on the 5 speed linkage but the linkage cage or housing is much deeper?

Hope some body can help

cheers si

Re: What do I need linkage wise to convert mine from 4spd 2 5spd

Posted: 04 Jan 2010, 20:43
by billy739
hi , yes the td has a different front floor /tunnel.

actual stick is the same on all 5 speeds , but 4 is different to 5

the front gearbox mount is also different , 4/5 speed , petrol/diesel

so as long as you have the 5 speed diesel mount you need to fit the front /rear gear selector rods with the stick , but you will need the base from a petrol 5 speed stick so it will bolt to your van!

Re: What do I need linkage wise to convert mine from 4spd 2 5spd

Posted: 04 Jan 2010, 20:47
by slee86
HIya thanks for your info, what do you mean by the mount? as in gear box mount? oh so i cant fit the td one then? why wont the 4 speed work? sorry for all the questions.

cheer si

Re: What do I need linkage wise to convert mine from 4spd 2 5spd

Posted: 04 Jan 2010, 20:53
by billy739
front gearbox mount is specific to diesel 5 speed , the metal bolt on part , rubber mount is same as otheres

the mount lifts the box up into the van higher than a petrol , and the rear linkage bar is bent to suit.

front selector/stick allows for sellection of the 5 gears which cant be done on the 4 speed (it has been done but creates big problems selecting gears)


the front rod is specific to the stick , 4 speed needs 4 speed front rod, 5 speed needs 5 speed front rod.

and i presume you have a late 4 speed (water cooled)as the Aircooled rods are totally different!

Re: What do I need linkage wise to convert mine from 4spd 2 5spd

Posted: 04 Jan 2010, 20:58
by slee86
Sorry with you now, yer I have the front mount, thats fitted. Yer its a 89 watercooled it was a 1.7d. So why is the floor different on the 1.6td?

cheers si

Re: What do I need linkage wise to convert mine from 4spd 2 5spd

Posted: 04 Jan 2010, 21:25
by ringo
slee86 wrote:Sorry with you now, yer I have the front mount, thats fitted. Yer its a 89 watercooled it was a 1.7d. So why is the floor different on the 1.6td?

cheers si

Ahhh, think i know what your talking about now.

I converted my 1.7d into a 1Y with a four speed box then put in an AAZ with 3H 5 speed box. I didnt change anything - it just worked. The only snag i have is going into 1st (its now below reverse) i have to push down the gearstick like you do when you go into reverse.

The 1.6td had a raised tunnel to fit a bigger fan - so the gear stick and selector box's arent interchangarble.

HTH's

Ringo

Re: What do I need linkage wise to convert mine from 4spd 2 5spd

Posted: 04 Jan 2010, 21:33
by slee86
Right I see now, so to fit the 5 speed linkage i need a 5 speed gear stick and selecter box or i use the 4 speed linkage, so wheres reverse when its a 5 speed? So you saying you did nt change the 4 speed linkage at all? just does nt feel like theres enough travel when i compare them where they connect onto the gear selecter ball on the gearbox.

cheers si

Re: What do I need linkage wise to convert mine from 4spd 2 5spd

Posted: 04 Jan 2010, 22:11
by ringo
I changed the gear stick knob :D

I did take the whole assembly apart and makes some adjustments. Its really not hard - take the spare wheel holder off and take a look.

Reverse is in the same place - on the 5 speed box, second gear is where the traditional (as it is on the 1.7) first gear is.

Ringo

Re: What do I need linkage wise to convert mine from 4spd 2 5spd

Posted: 05 Jan 2010, 06:47
by ermie571
Just a note....I did the same thing as Ringo but in PETROL. Went from 4 to 5 speed. Initially left all the four speed linkage in place, and yes, had to press down and up to get reverse, or down and down to get first. Then purchased the 5 speed stick and front half of linkage, and now it works properly - only have to press down for reverse. :D

Haven't yet changed the knob..... :rofl

Em
x

Re: What do I need linkage wise to convert mine from 4spd 2 5spd

Posted: 06 Jan 2010, 13:56
by silverbullet
This could explain some of the difficulty that I have on the SA with getting first - half the time trying to pull away in 3rd...I have to give it a hefty smack to get it over and down into the 1st/rev plane and give it a second push sideways to make sure. The bushes aren't completely knackered either.
The van has had allsorts done to it over the years by previous owners - were SA buses built with diesel floorpans to give extra cooling, what with the air con and all?
It does have the BIG fan with the mystery pipe tails sticking out the back of the fan motor.
It is a low floor, small window petrol 1990 model (don't know if it was 1.9 or 2.1 originally) defo not a 5-pot.
Were they built as 4-speed this late in SA? It's got a 5 speed fitted.

Re: What do I need linkage wise to convert mine from 4spd 2 5spd

Posted: 06 Jan 2010, 14:06
by billy739
never seen a sa bus with the bigger tunnel as far as i am aware they were all low tunnels.

lots of early stuff was 4 speed , even the 2.1 buses, usually equivalant to our 1.9 ratios, not sure why tho.

Re: What do I need linkage wise to convert mine from 4spd 2 5spd

Posted: 06 Jan 2010, 14:50
by silverbullet
Is the difference between high/low tunnel blindingly obvious or slight?
Is there a height dimension to use as a quick check, either the floor in the cab or the shift gate box underneath?
My SA is a 2wd not syncro, so the wiki isn't terribly useful as all the pics of the shift lever are syncro diesel, so doubly confusing :?

Re: What do I need linkage wise to convert mine from 4spd 2 5spd

Posted: 06 Jan 2010, 15:55
by ringo
Quite a big difference i seem to remember... over 10cm i think...

Re: What do I need linkage wise to convert mine from 4spd 2 5spd

Posted: 06 Jan 2010, 16:23
by silverbullet
I've put a topic request in for the wiki. Gearchanges seem to give everyone a headache esp. if your doing a conversion or have an "unknown quantity" bus, which is a lot of them!

Re: What do I need linkage wise to convert mine from 4spd 2 5spd

Posted: 06 Jan 2010, 22:00
by billy739
seriously large difference!

the floor is not flat on the 'raised tunnel'
instead it comes at an angle from the floor between the seats up to the bottom of the heater vent cover!, about 40 degrees?

this is a van with the td raised tunnel
http://cgi.ebay.co.uk/1989-VW-T25-TD-HI ... 439c7cc564

compared to standard
http://cgi.ebay.co.uk/VW-T3-T25-high-to ... %26ps%3D54