I'm going in circles on my front brakes.
1970 GMC Jimmy
4x4
Drum front and rear
I have a few issues and will brake them out...
Item 0: Yes. I probably should have bit the bullet and done the front disc conversion before getting a new master/booster/shoes/etc and investing in this drum path.
Item 1: I have a leaking wheel cylinder front driver side. By unscrewing the banjo bolt on the brass fitting (image 1) I can disconnecting the brake line from the wheel cylinder. As advised, I'm also replacing the front passenger wheel cylinder (the book says to change them together even though it isn't leaking). The passenger side does not have the brass fitting (image 2) and I can't unscrew the brake line. The flexible line coils up on itself before unscrewing from the wheel cylinder.
What am I missing? How do I disconnect passenger front wheel cylinder without the brass fitting with banjo bolt? Is the flexible hose supposed to spin freely and is seized or is it supposed to be fixed in place?
Item 2: This one is a little bit lazy as I haven't researched as much or done thorough diagnostics. I put on a new master cylinder / booster but it doesn't feel as "boosted" as I'd expect. Given the leaky cylinder I'm thinking that could be part of the problem OR I need to rebleed and have air in the lines. I noticed that when I turn the car off I hear a hiss from behind the booster (I think) where the plunger enters I think. Anyone aware if this hiss (after shutoff) is normal? It goes for ~10 seconds. I can't tell if it's hissing when the car is running due to engine noise.
Thanks for the help.
1970 GMC Jimmy
4x4
Drum front and rear
I have a few issues and will brake them out...
Item 0: Yes. I probably should have bit the bullet and done the front disc conversion before getting a new master/booster/shoes/etc and investing in this drum path.
Item 1: I have a leaking wheel cylinder front driver side. By unscrewing the banjo bolt on the brass fitting (image 1) I can disconnecting the brake line from the wheel cylinder. As advised, I'm also replacing the front passenger wheel cylinder (the book says to change them together even though it isn't leaking). The passenger side does not have the brass fitting (image 2) and I can't unscrew the brake line. The flexible line coils up on itself before unscrewing from the wheel cylinder.
What am I missing? How do I disconnect passenger front wheel cylinder without the brass fitting with banjo bolt? Is the flexible hose supposed to spin freely and is seized or is it supposed to be fixed in place?
Item 2: This one is a little bit lazy as I haven't researched as much or done thorough diagnostics. I put on a new master cylinder / booster but it doesn't feel as "boosted" as I'd expect. Given the leaky cylinder I'm thinking that could be part of the problem OR I need to rebleed and have air in the lines. I noticed that when I turn the car off I hear a hiss from behind the booster (I think) where the plunger enters I think. Anyone aware if this hiss (after shutoff) is normal? It goes for ~10 seconds. I can't tell if it's hissing when the car is running due to engine noise.
Thanks for the help.
