Showing posts with label a2. Show all posts
Showing posts with label a2. Show all posts

December 15, 2012

The misfit

I got the adapter plates from the machine shop this week. I would be lying if I said they fit perfectly :-(
Somehow I must have mis-measured or mis drawn on my CAD drawing almost 2mm on the mounting holes for the stub axle bolts!
Anyway, with a good power drill, anything can be fixed :-)
The left rear wheel is now mounted, with adapter, stub axle, hub, rotor, caliper, and new brake line with a flexible hose in the end. It looks beutiful, doesn't it!

Left to do is the right rear wheel, of course and get new handbrake cables that will fit the brake calipers. The cables for the drum brakes did not fit at all. I am hoping that Biltemas cheap (SEK 129, EUR 15) cables for Audi A3 and VW Golf among others will fit.

I had hoped I would get the car running this weekend. I had all the parts (at least I thought so) and I had the time. Well, it seems like the calipers from the Skoda Fabia which fit the spindles from the Skoda Fabia, which fit the Audi A2 beutifully, maybe aren't from a Skoda Fabia at all. At least did the brake pads for the Fabias C54-II brakes not fit at all. After a lot of trial and error on the Internet with different brake systems for VAG cars I now believe that the brakes are FN 3 from VW Golf V 2005 and later. Maybe they used those brake systems on Fabia and did not include that in the workshop manuals or the scrap yard sent me the wrong parts again. Anyway, since the brakes fit great and I have now found pads form them I will keep them. I'll just change the pads and the mounting kit.
This is what the front looks like with new rotors.
I compared the old and the new brakes. The old rotors weighs 4.9 kg and the new 7.2. Quite a difference! The calipers are also much bigger.

The new rotor to the left and the old to the right
Left: new caliper. Right: old

October 31, 2012

Brake parts arrived!

So, after long time thinking I have decided how to convert the brakes. In the front will go larger (280mm) disc brakes from a Golf IV. Since the A2 has built-in caliper holders, larger discs won't fit so I'll change the whole wheel bearing housing. I bought new rotors and pads and used calipers and wheel bearing housing. The wheel bearing housing also includes wheel bearings and hubs. I hope they will fit the A2 drive shafts!
In the rear go disc brakes also from a Golv IV with new rotors, calipers, pads, and splash guards. The caliper holders are the only thing missing now. They are ordered used from bildelsbasen.se. I will have to manufacture the adapters for the calipers also.
Now I really want to start converting brakes! However I need to get the car approved before I convert the brakes so that I can legally drive it for one more year. If I don't get it approved before dec 1:st it will become illegal to drive. And I can't get it approved after I changed the brakes. I have to wait until the whole is converted to electric to get the full approval.
So, I'll sit still and plan to start conversion the weekend after next.