Rear limiter valves - and pics of drum to disk conversion

wolfhound · Post by **wolfhound** » Fri Nov 21, 2008 6:52 am

I changed the topic and added pics of the conversion so far.............

I see the Lanos has limiter valves already on the master cylinder even though it has drums at the rear - will these work with my new Opel Kadett GSI 16v rear disks ?

I took the limiter valves off the Big Boss (GSI 16v) just in case, but they bolt onto the same place as the Woo ones.

Sean

Pir0 · Post by **Pir0** » Fri Nov 21, 2008 9:59 am

I used my standard 1.5 ones from my nexia with GSI rear brakes, and they work fine. No premature lockup.

GsiTurbo · Post by **GsiTurbo** » Sat Nov 22, 2008 12:38 am

I had the opposite problem in the GSI (originally with drums, swapped in the rear disc axle), not enough travel on the rear calipers (pads were barely making any contact with the discs. I ended up drilling out the restrictors to twice its original diameter (at this point the rotors finally got shiny and clean), and altough I sold the car, I would drill them out another 25%.

If you have original valves, definitely use them IMHO.

Cheers,
Tom

gse_turbo · Post by **gse_turbo** » Sat Nov 22, 2008 6:22 pm

what if you were to cap off the line out of the cylinder that would go to the backs and run all four out of the front line and then split with a brake bias?

MMamdouh · Post by **MMamdouh** » Sun Nov 23, 2008 12:58 pm

gse_turbo wrote:what if you were to cap off the line out of the cylinder that would go to the backs and run all four out of the front line and then split with a brake bias?

elaborate please

MMamdouh

gse_turbo · Post by **gse_turbo** » Sun Nov 23, 2008 6:43 pm

Typically a Bias valve has only one line in and one line out but I have seen ones in the past that had one in and two out or even one in and four out but these are hard to find. ...so I will go by the one in and one out design.

The brake master has four lines out, two front two back of course. I suggest capping off the rear lines out and run everything from the front lines out of the master. from the front master lines install two brake bias, one from each line. then send the line from one bias to the real and the other to the front and use a line 'T' to split to the seperate calipers.
this way you have full control of the balance front and rear without guess work and this setup would be far less expensive than a full race setup with the same amount of control.

Another option would be to do somewhat like Tom but instead of drilling out a little, drill it out completely. This way, basically all four would be getting equal force. then you plug one rear line out and use a bias to just control the rear.

wolfhound · Post by **wolfhound** » Mon Nov 24, 2008 7:15 am

Started the swap out yesterday - got a set of brand new disk for R600 - thats about $60

i'm quite happy with that - gona stick new SKF bearings in to as they only cost R95 per side there were cheaper options on bearings - like half price for the no name brand but better the devilo you know. so thats R790 ($79) for the complete new disks and bearings.

Using the stub axel from the woo as they are like brand new and obviosuly the rest of the disk brake set up from the GSI kadett.

Now i have a spare GSI rear disk setup as i had already bought one before i bought the smashed Big Boss.

Will try out the brakes and see what its like before i swap the limiter valves.

Sean

gse_turbo · Post by **gse_turbo** » Mon Nov 24, 2008 3:15 pm

how about some pics? ...the caliper bracket is one piece with the stub axle correct? how is it that you can use the woo axle?

cheers,
Garrett

GsiTurbo · Post by **GsiTurbo** » Tue Nov 25, 2008 3:52 am

gse_turbo wrote:how about some pics? ...the caliper bracket is one piece with the stub axle correct? how is it that you can use the woo axle?

cheers,
Garrett

It is my understanding there are two variants of Daewoo the rear axle. In one, rear hubs are welded and bolted to the trailing arm..in the other, they are only bolted on. Kadett GSI had the rear hubs bolted, hence most likely wolfhound unbolted the disc brake hubs with the caliper mounting provisions and attached them to the Lanos. May I recommend transferring the sway bar if the Lanos does not have it (never checked on mine)...

Please correct me if I am wrong.

daewooluvr · Post by **daewooluvr** » Tue Nov 25, 2008 4:17 am

GsiTurbo wrote:
gse_turbo wrote:how about some pics? ...the caliper bracket is one piece with the stub axle correct? how is it that you can use the woo axle?

cheers,
Garrett
It is my understanding there are two variants of Daewoo the rear axle. In one, rear hubs are welded and bolted to the trailing arm..in the other, they are only bolted on. Kadett GSI had the rear hubs bolted, hence most likely wolfhound unbolted the disc brake hubs with the caliper mounting provisions and attached them to the Lanos. May I recommend transferring the sway bar if the Lanos does not have it (never checked on mine)...

Please correct me if I am wrong.

I'd love to see a write up on how to add a sway bar to the US-spec Lanos.

wolfhound · Post by **wolfhound** » Tue Nov 25, 2008 5:41 am

Excuse my ignorance guys - whats a sway bar ? Like an anti roll bar ? ????

Oh jha and the stub axle is just like GSI described - the Opel ones fit on via bolts where as the Woo ones have studs on them - i'll try get some photos tonight - had to go round to a mates place last night and use his 25t press to put the new bearings into the new disks.

Hopefully get the rear brakes on tomorrow night. (taking the missus out for dinner tonight

so no work on the Woo tonight)

S

wolfhound · Post by **wolfhound** » Wed Nov 26, 2008 5:30 am

Right here are some pics - you can clearly see how the Woo stub axle bolts THROUGH the disk brake set up.

Only dif in the 2 stub axle is the cut out on the Opel one, as the back plate has a hole as has the plate on the axle that it bolts to - the Woo axle doesn't have this but i doesn't seam to serve any purpose so it could just be a breather hole ????

And here is the "tags" at the back of the disk rear plate that the calipers bolt onto.....

Here is an Opel stub axel, and a complete spare disk brake hub, showing the cut out on the axle and the hole in the back plate.

And finally these are the new disks ....

Sean

MMamdouh · Post by **MMamdouh** » Wed Nov 26, 2008 9:59 am

i know i have asked this some 10 million times before but.... i just have to

if i took out the rear disk brake setup out of a 94 Opel vector A... will it be a direct swap for the lanos' read drum setup?? in other words is the mounting flange and bolt pattern on the suspension members of lanos and Vectra A the same or compatible?

MMamdouh

wolfhound · Post by **wolfhound** » Wed Nov 26, 2008 12:21 pm

All ya gotta do is see if the Vectra has the same 4 way mounting hole on the rear of it's axle as the Woo has - see the pictures above. if it does, i don't see why it shouldn't fit.

Sean

MMamdouh · Post by **MMamdouh** » Wed Nov 26, 2008 1:24 pm

i came across this post and i can see that the setup from the corsa B is very similar to the one on the Vectra A as far as the brakes go... i rekon the whole beam is a direct swap for a lanos

and from the bolt pattern on the corsa B i can tell it is 99% similar to the lanos... got to get a "print" of the lanos flange that has the axel bolted on... or an old axel and go dig for a vectra A rear axel with disks

http://www.opelownersforum.co.za/forum/ ... 8b28014e75

MMamdouh