[musclecarman15]

having trouble bleeding my brakes on my 1974 trans am , specifically holding in the valve pin to get full flow....help, thx keith

[Aus78Formula]

I never bothered with that pin at all, just bench bleed the master cylinder and bleed the rest on the car working from furthest to closest wheel.

[ID67goat]

What was done to the brake system? Which parts were replaced etc?

[musclecarman15]

just pulled my 1974 trans am sd455 with 12,000 original miles (all original paint ) out of hibernation, had one rear wheel cylinder that was leaking so i honed and redid original wheel cylinders....have bled by vacuum and manual....brakes have no leaks and work good and not great...have ordered the tool to keep valve from engaging....factory service manual calls for the use of tool when both pressure and manually bleeding...so i am going to try tool next...thx keith

[Sirrotica]

I have no idea why bleeding a brake system is so labor intensive for so many people on this board.

Three videos, first one explains how people ruin a working master cylinder in a classic car by pumping the brakes to the floor to bleed them, and why gravity bleeding should be used to avoid this problem.

https://www.youtube.com/watch?time_c...&v=5Mkj2fRmTws

Second one is getting a siphon started after replacing a component. Only thing is this guy pushes the pedal all the way to the floor, when just stroking the pedal at the top of the travel will accomplish the same thing, and not chance ruining the seal in the master cylinder as explained in the first video.

https://www.youtube.com/watch?time_c...&v=D2NC_mkJ-VQ

Third video is a older woman in an auto vocational shop. She is working on a late 90s, early 2000s S-10 gravity bleeding the LR wheel. She shows how easily someone without any special tools, or training, can gravity bleed a brake system.

https://www.youtube.com/watch?v=Shz8CPQfcVI

I've bleed brake systems using this method since I first learned how to do it in my early teens, even before I had a drivers license, and it always works perfectly. No fuss no muss nor special tools required.

[musclecarman15]

Originally Posted by Sirrotica

I have no idea why bleeding a brake system is so labor intensive for so many people on this board.

Three videos, first one explains how people ruin a working master cylinder in a classic car by pumping the brakes to the floor to bleed them, and why gravity bleeding should be used to avoid this problem.

https://www.youtube.com/watch?time_c...&v=5Mkj2fRmTws

Second one is getting a siphon started after replacing a component. Only thing is this guy pushes the pedal all the way to the floor, when just stroking the pedal at the top of the travel will accomplish the same thing, and not chance ruining the seal in the master cylinder as explained in the first video.

https://www.youtube.com/watch?time_c...&v=D2NC_mkJ-VQ

Third video is a older woman in an auto vocational shop. She is working on a late 90s, early 2000s S-10 gravity bleeding the LR wheel. She shows how easily someone without any special tools, or training, can gravity bleed a brake system.

https://www.youtube.com/watch?v=Shz8CPQfcVI

I've bleed brake systems using this method since I first learned how to do it in my early teens, even before I had a drivers license, and it always works perfectly. No fuss no muss nor special tools required.

....thank you