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General Information => General => Topic started by: parkdog on February 05, 2010, 12:19:23 am

Title: disc brakes?
Post by: parkdog on February 05, 2010, 12:19:23 am
i need to replace my rear brakes and a buddy has an 85 gti sitting at his acreage just wondering if the disc brake set up would bolt in?

also any suggestions where to get a bentley manual for a 92 1.6td?
Title: Re: disc brakes?
Post by: Vincent Waldon on February 05, 2010, 12:48:44 am
also any suggestions where to get a bentley manual for a 92 1.6td?

Given that Canada is one of the largest countries in the world this would be an easier question to answer if you updated your profile to be a bit more specific. ;)
Title: Re: disc brakes?
Post by: Rabbit on Roids on February 05, 2010, 09:34:52 am
you need the right master cylinder and proportioning valve for the disk brake setup.
Title: Re: disc brakes?
Post by: Vincent Waldon on February 05, 2010, 09:41:21 am
Yuppers... also will need the emergency brake cables as well as the hoses.

Some folks find it easier to just grab the entire axle assembly and swap it across... or you can unbolt from the backing plate, stub axles, etc. 

You can cheat and not swap master cylinders and prop valves... lots of folks will tell you they've done it... but VW makes 'em different for disks vs. drums and as a safety system I figure it might make sense to bow to their wisdom?!  Enough cars on the road already with iffy brakes?!  ;)
Title: Re: disc brakes?
Post by: Rabbit on Roids on February 05, 2010, 09:43:45 am
Yuppers... also will need the emergency brake cables as well as the hoses.

Some folks find it easier to just grab the entire axle assembly and swap it across... or you can unbolt from the backing plate, stub axles, etc. 

You can cheat and not swap master cylinders and prop valves... lots of folks will tell you they've done it... but VW makes 'em different for disks vs. drums and as a safety system I figure it might make sense to bow to their wisdom?!  Enough cars on the road already with iffy brakes?!  ;)

the disk brake master cylinder is ~2mm bigger than the drum brake setup, if i remember right.
Title: Re: disc brakes?
Post by: parkdog on February 05, 2010, 10:28:55 am
well the gti still has all the parts on it so couldnt i just take everything i need off that.
Title: Re: disc brakes?
Post by: Rabbit on Roids on February 05, 2010, 11:20:35 am
yea, that would be the best plan.
Title: Re: disc brakes?
Post by: GEE-BEE on February 05, 2010, 01:46:44 pm
25 MM MASTER Cylinder, 16V PROP VALVES

ebay seller : moogie3298 has the ebrake cables

I had to do the Pedal swap from a MK1 to MKII

Hope this help's

G.B.
Title: Re: disc brakes?
Post by: Vincent Waldon on February 05, 2010, 01:54:03 pm
well the gti still has all the parts on it so couldnt i just take everything i need off that.

Yup...we're just trying to help you figure out *all* the parts you need to grab.
Title: Re: disc brakes?
Post by: parkdog on February 05, 2010, 03:49:31 pm
ok sorry im new to this stuff ive never really one anything to a car asides change the oil/rotate the tires.... but ive worked on bikes and small stuff like that.
Title: Re: disc brakes?
Post by: parkdog on February 05, 2010, 08:13:11 pm
so basically i need everything off the rear main axle, master cylinder,proportioning vavle, and the e-brake cables would it be smart to just  swap the whole brake system from the car or would it be too much work. im guessing they are the same brake setup in the front. but i dont know you guys are the veterans to this stuff.

oh yeah anyplace to order a bentley manual online?
Title: Re: disc brakes?
Post by: Vincent Waldon on February 05, 2010, 09:07:42 pm
Chapters/Indigo/Coles carries the Bentley manuals... doesn't look like they have a store in Lloyd but there's one in Saskatoon.  Their web site should let you order them for local pickup.

You can also get them online thru Amazon.ca.
Title: Re: disc brakes?
Post by: fatmobile on February 05, 2010, 09:29:00 pm
I swapped the rear discs on my '87 Jetta GLI over to drums.
 Ebrake cables were different but there was no proportioning valves on the master cylinder, like the Sciroccos have.
 The proportioning valve is on the rear beam and didn't need changed.
 
 Rear discs are troublesome.
 The emergency brake arm gets sticky and they seize.
 New ones are probably OK but used rear calipers are iffy.
Title: Re: disc brakes?
Post by: Syncroincity on February 05, 2010, 09:57:34 pm
I swapped the rear discs on my '87 Jetta GLI over to drums.
 Ebrake cables were different but there was no proportioning valves on the master cylinder, like the Sciroccos have.
 The proportioning valve is on the rear beam and didn't need changed.
 
 Rear discs are troublesome.
 The emergency brake arm gets sticky and they seize.
 New ones are probably OK but used rear calipers are iffy.

Yup... Just smoked the pads off our '98 Jetta Wolfie. Went from fully functional to worse than useless in less than a month. :P
Title: Re: disc brakes?
Post by: catlin_cava on February 06, 2010, 05:51:49 am
germanautoparts.com sells a complete rear disk brake conversion kit. all brand new product.
Title: Re: disc brakes?
Post by: burn_your_money on February 06, 2010, 06:12:49 am
Total waste of money and time for street use in my opinion.

Adjust your prop valve properly or even slightly more aggressive then it should be and you'll notice improved braking. Just be careful that the rears don`t lock up before the fronts.
Title: Re: disc brakes?
Post by: catlin_cava on February 06, 2010, 06:55:12 am
If you drive aggressively then normal people its a good idea  :P
Title: Re: disc brakes?
Post by: GEE-BEE on February 06, 2010, 08:49:37 am
If you can find a used set then I would do it

I found G60 brakes and seats for 400.00, I purchased a new master cylinder and brake booster
Seats were sent out for rebuild with Scirocco new fabric on the inserts ( black /white )
[email protected] had the adapters for the front and ebrake cables, 65.00 for both

GB
Title: Re: disc brakes?
Post by: parkdog on February 06, 2010, 09:48:40 am
concept1.ca also sells a kit but i kinda wanted the stock ones since its all mk2 stuff cause the conversions use mk4 calipers and bigger discs. I want my car to be for the most part to look stock. i probably wont even paint it just fix the rust issues and do the mechanical stuff first.
Title: Re: disc brakes?
Post by: jack's lack on February 06, 2010, 07:19:09 pm
I did it went with the MKIV calipers, scirocco 16v brakes up front, 22mm master cylinder, scirocco proportioning valves and e-brake cables. it was a HUGE PITA and the front brakes made a big difference, but switching the rears to disks was probably totally for aesthetic value. Honestly I would not do it again knowing what I know now.