Where can I find a pic of the brake line diagram for a 1973 super beetle my rear line broke when I was forced to do a very hard stop.. the brake fluid is under the drivers floor mat.. there is no fluid leak by the master or in the rear.. there is lots of rost where the line runs near the pedals

I would check for a blockage in the feed pipe or the stabiliser valve.

Does the peddle feel very hard to depress if so that line is the vacuum for the booster if your taking about the actual metal brake lines they are the rear line is for the rear and the front is the front if you drive the truck you will ruin the master cylinder because you will be pulling air into the system unless it's really blocked off to not let any air in but you can drive it using the emergency brakes if you have good coordination but be careful why not call a friend or a taxi or some parts stores deliver that's much better then high risk of accidents and chance taking

super or non super beetle???????????
old old car, I have one. a 68 so...
the Master cylinder, has 2 switches.
they are open with brakes off, if not they are bad.
turn steering, wheel hard right
look behind left front wheel.

can I guess what is wrong, you never said.
rear brake lamps bad. both dead.?
and the brake fuse is not blown>?
and you replaced both bulbs.?? they can in fact short this type.!
then check the voltage at the actual switches last (harder)
using a device called a volt meter (DMM)
12vdc is good. foot on brakes,
0v is not
6v (or about) is shorted brake lines. (wires)
we have a free schematic online, at,
orgional operators guides here.
http://www.thesamba.com/vw/archives/lit/
and
the sch. here
and all wiring, here
http://www.thesamba.com/vw/archives/info/wiringt2.php

just about every secret there is (was) is now , online on these
old cars, i did a ground up, (my hands, not shop)
so can answer, I sold my 70. (to sis) (bought it new)
but still have my 68.
if you need more exact testing steps, please ask.

You have what is called a diagonal brake system. What that is, you have two brake systems on one brake pedal. One system controls the lt. front and rt rear and the other controls the rt. front and lt. rear. If a line line breaks that system stops working. This system was set up to cause uniform braking. With a line broke you are only stopping on two wheels. If you get into a panic situation you will not stop in time and could suffer great loss. GET THAT LINE FIXED NOW.

Still not bleed properly

If you replaced the pads and used metallic pads, they do have a brake-in period. if you do all four at once this can be a bit unnerving when stopping the first few times. If indeed this is what is happening, 2 or 3 40mph panic stops on and unpopulated street should heat them up and solve the problem. Also, if you were under the hood messing around, make sure you didn't knock the vacuum hose to the power brake booster off.

Here you go:

http://www.vintagebus.com/wiring/bus-73-75.jpg

I got it from here:

http://www.vintagebus.com/wiring/index.html

But I remember all the electrical pretty well, so you can just ask also.

I suggest check the Ford 1964-1973 Mustang

Hope helps (rated this) Good luck.

Drum, Rear Brake System Standard Rear Brake

Item Part Number Description 1 2069 Brake Shoe Hold-Down Spring Pin 2 — Rear Wheel Cylinder Retaining Bolt (2 Req'd) 3 — Washer (2 Req'd) 4 — Anchor Pin (Part of 2211) 5 — Wheel Cylinder 6 2028 Brake Shoe Anchor Pin Guide Plate 7 2A637 Parking Brake Lever 8 2296 Brake Shoe Retracting Spring (Short) 9 2296 Brake Shoe Retracting Spring (Long) 10 2200 Rear Brake Shoe and Lining (Secondary) 11 — Washer 12 2106 Parking Brake Lever Pin Retainer 13 — Brake Shoe Adjusting Lever Cable Guide 14 2A642 Primary Brake Shoe Parking Brake Lever Link 15 2A601 Parking Brake Link Spring 16 2068 Brake Shoe Hold-Down Spring 17 2A176 Brake Shoe Adjusting Lever 18 2048 Brake Shoe Adjusting Screw Socket 19 2047 Brake Shoe Adjusting Screw Nut 20 2041 Brake Adjusting Screw 21 2049 Brake Shoe Adjusting Screw Spring 22 2200 Rear Brake Shoe and Lining (Primary) 23 2A178 Brake Shoe Adjusting Lever Cable 24 2211 Brake Backing Plate
Heavy Duty Rear Brake

Item Part Number Description 1 — Rear Wheel Cylinder Retaining Bolt 2 00538 Lock Nut 3 2212 Rear Brake Backing Plate 4 2262 Rear Wheel Cylinder 5 2A642 Primary Brake Shoe Parking Brake Lever Link 6 2A601 Parking Brake Link Spring 7 2A637 Parking Brake Lever 8 2106 Parking Brake Lever Pin Retainer 9 — Parking Brake Lever Bolt 10 — Secondary Shoe Assembly 11 2A179 Brake Shoe Adjusting Lever Cable Guide 12 2068 Brake Shoe Hold-Down Spring 13 — Adjusting Lever Pin 14 — Adjusting Lever Return Spring 15 2A176 Brake Shoe Adjusting Lever 16 2047 Brake Shoe Adjusting Screw Nut 17 2049 Brake Shoe Adjusting Screw Spring 18 2041 Brake Adjuster Screw 19 — Primary Shoe Assembly 20 2068 Brake Shoe Hold-Down Spring 21 2200 Rear Brake Shoe and Lining 22 2035 Brake Shoe Retracting Spring 23 2A178 Brake Shoe Adjusting Lever Cable 24 2092 Brake Adjusting Hole Cover 25 2069 Brake Shoe Hold-Down Spring Pin
The rear drum brakes:

• Have internal shoes that expand against the brake drum (1126).
• Are a single-anchor type.
• Are actuated by one rear wheel cylinder (2262).
• Have two pistons in the rear wheel cylinder (2261). One exerts force against the upper end of the primary shoe; the other exerts force against the upper end of the secondary shoe.
• Adjust rear brake shoes and linings (2200) automatically.
• Need manual brake adjustment if the adjusters are not operating properly or after the rear brake shoes and linings have been replaced.

When the brake pedal is applied, hydraulic fluid pressure forces the pistons in the rear wheel cylinder outward, moving the rear brake shoes and linings against the brake drum.
The rear drum brake system includes the parking brake mechanism. Refer to Section 206-05 .

you should be able to find info on a web site on these cars as many people collect these cars now.