Just a little update for you folks. Plus maybe someone can point me in the right direction.
Since my first thread I took most of the stuff apart. I found out that I have the right size pin in the booster. I thought that was a good thing. LOL
I took the original master that I just bought, put it in the vise and bench bled it after I put in two inverted flare plugs. The rear section of the reservoir looked good. The section nearest the booster kept getting small bubbles. Not all of them as I was bleeding it, some would pop up when I stopped. I figured maybe I nicked the rubber cup inside the master the first time I bled it manually in the car.
I had another new Delco master that I got from rockauto. I planned on sending it back for a refund. At this point I figured I would try it since I had it in the garage. Stuck it in the vice, bench bled it and it looked fine. Put it in the car and I figured I was good to go.
While I had everything out I also pulled the proportioning valve. This was new from Inline Tube. I pulled it to install the plastic plug that prevents the rod from pegging at one end or the other. I got the rod centered after I pulled it out, screwed the plug in and put it back on the frame.
Now comes the strange crap thats making me nuts.
Im using a Mighty Vac air bleeder. The one that sucks the fluid out of the bleeder screws. I used the same one on the wagon and it worked fine.
I went to the rear. Right side seemed okay but there was a lot of air. Left side was the same way.
Went to the right front. Same deal. Lots of bubbles. Finished both sides and did it all over again. Same again. Lots of air.
Now Im wondering where the hell all the air thats in the lines is coming from.
I take the plug out of the proportioning valve and put the switch back in. Again, lots of air.
I checked every fitting. Nothing leaking anywhere in the system. Not even damp threads on any fitting.
I called MalibuDave since hes up on brake systems. Great guy to talk to and he went through everything I did. Hes thinking maybe I got a bad proportioning valve.
When I clamped the lines the pedal was hard, about a quarter of the way down. Now the pedal is still on the soft side, about halfway down.
Im stuck. Im pissed. Ive torn this crap apart too many times and I still dont have the issue fixed.
Im probably going to bits the bullet and get another new booster. Its the only thing I havent replaced. Two masters bad ? Not likely. Im calling Inline tomorrow and Im pushing for a new prop valve.
New calipers, rubber lines, wheel cylinders. Back brakes are adjusted right. They werent the first time but now they are for sure.The last time I bled it the fluid was filled with fine bubbles. I wondered if the air was getting in through the bleeder threads.
Anyone got any other ideas ? MalibuDave suggested posting another thread so here it is. Anyone else ever have a crazy problem like this ?
.
Since my first thread I took most of the stuff apart. I found out that I have the right size pin in the booster. I thought that was a good thing. LOL
I took the original master that I just bought, put it in the vise and bench bled it after I put in two inverted flare plugs. The rear section of the reservoir looked good. The section nearest the booster kept getting small bubbles. Not all of them as I was bleeding it, some would pop up when I stopped. I figured maybe I nicked the rubber cup inside the master the first time I bled it manually in the car.
I had another new Delco master that I got from rockauto. I planned on sending it back for a refund. At this point I figured I would try it since I had it in the garage. Stuck it in the vice, bench bled it and it looked fine. Put it in the car and I figured I was good to go.
While I had everything out I also pulled the proportioning valve. This was new from Inline Tube. I pulled it to install the plastic plug that prevents the rod from pegging at one end or the other. I got the rod centered after I pulled it out, screwed the plug in and put it back on the frame.
Now comes the strange crap thats making me nuts.
Im using a Mighty Vac air bleeder. The one that sucks the fluid out of the bleeder screws. I used the same one on the wagon and it worked fine.
I went to the rear. Right side seemed okay but there was a lot of air. Left side was the same way.
Went to the right front. Same deal. Lots of bubbles. Finished both sides and did it all over again. Same again. Lots of air.
Now Im wondering where the hell all the air thats in the lines is coming from.
I take the plug out of the proportioning valve and put the switch back in. Again, lots of air.
I checked every fitting. Nothing leaking anywhere in the system. Not even damp threads on any fitting.
I called MalibuDave since hes up on brake systems. Great guy to talk to and he went through everything I did. Hes thinking maybe I got a bad proportioning valve.
When I clamped the lines the pedal was hard, about a quarter of the way down. Now the pedal is still on the soft side, about halfway down.
Im stuck. Im pissed. Ive torn this crap apart too many times and I still dont have the issue fixed.
Im probably going to bits the bullet and get another new booster. Its the only thing I havent replaced. Two masters bad ? Not likely. Im calling Inline tomorrow and Im pushing for a new prop valve.
New calipers, rubber lines, wheel cylinders. Back brakes are adjusted right. They werent the first time but now they are for sure.The last time I bled it the fluid was filled with fine bubbles. I wondered if the air was getting in through the bleeder threads.
Anyone got any other ideas ? MalibuDave suggested posting another thread so here it is. Anyone else ever have a crazy problem like this ?
.