True, this is U.S. laws and Regulations. However I'd Ask around just incase.


My 1973 had manual brakes and it was a pain and a half. Power assisted brakes are much nicer. Although driving the 1973 was a workout. With Manual steering and brakes, you didn't have to go to the gym.

 

S3. Application. This standard applies to multi-purpose passenger vehicles, trucks, and buses with a GVWR greater than 3,500 kilograms (7,716 pounds) that are equipped with hydraulic or electric brake systems.


Doesn't apply to us dude. This is for commercial vehicles.

I would add that in all the magazines and shows that build custom vehicles rarely follow any sort of procedure for brakes, several cars, jeeps, trucks whatever are converted to manual brakes, or rear disks with no emergency brake and such.

Josh

 

That's Because the Standard was Updated in 2002. After 2002 FMVSS 105 stopped applying to passenger vehicles below (7,716 Pounds).

Passenger Vehicles made between 3-6-95 and 9-1-2002 are held under either FMVSS 105 or FMVSS 135. Passenger Vehicles made after 9-1-2002 below 7,716lbs are regulated under FMVSS 135. Passenger Vehicles Made Before 3-6-95 are regulated under FMVSS 105. FMVSS 105 took affect in 1-1-68, and applies to 1973-1979 Ford Pickups.

Quote From NHTSA: Passenger Cars (Effective 3-6-95 until 9-1-2000), Multipurpose Passenger Vehicles, Trucks and Buses
(Effective 12-1-97 until 9-1-2002)
Manufacturers of passenger cars and multipurpose passenger vehicles (MPVs), trucks and buses with a gross vehicle weight rating (GVWR) less than or equal to 3,500 kg (7,716 lbs.) may certify compliance with either FMVSS No. 105 or FMVSS No. 135 described later in this booklet. After the terminal dates shown above, FMVSS No. 105 continues to apply to MPVs, Trucks and Buses with a GVWR greater than 3,500 kg (7,716 lbs.).

These trucks were made between 1973-1979 so FMVSS 105 applies to them. FMVSS 105 Took Affect in 1-1-1968.


Most of the machines built in the mags are not street legal either.

Granted, FMVSS 105 has been updated several times since 1968, however it still applies to any passenger vehicle, Multipurpose Passenger Vehicles, Trucks and Buses between 1-1-1968 and 9-1-2002.

 

Graeme. Do yourself a huge favor and check a few more things before you run out and make too many changes. If it ends up you need a new booster put one in. I just had to change my brake booster and it is a simple and inexpensive job. It is neither simple nor inexpensive to change the complete system as you need everything from the brake pedal , to mounts and all parts to the brake lines. Nothing will be easy or effective as a new booster.
It still sounds like you have air in the brakelines though. The booster will not make any difference in how many times you have to pump the brake pedal to get pressure. I am wondering what order you are bleeding the brakes in as that is very important. To bleed brakes correctly you must do the brake furthest from the master cylinder first, then work in closer. Passenger rear first, drivers rear second, passenger front third, and finally drivers front. Do not let the level in the master get low as that is one thing many people miss and then more air enters.
You dont say whether you have checked all your wheel cylinders and brakelines but that is a possible leak or air entry area, so double check them. Another thing to check is that you have proper vacuum to the booster. Good luck

 

will do man thanks for that very helpful info i wasnt aware that you had to do the furthest ones first and your right ill just stick with the power assist if i accually do need a new onei did check the vacume and it read fine im gonna go do it in the proper order now as soon as i can fine another person to give me a hand! thanks again man!

 

Let us know what you find out there. Other possibilities exist but starting with the basics, or with the parts you just worked on is usually the quickest.