Mopars, Drag Racing, Engine Building, etc…
Bleeding Brakes and Setting Preload…
Last night, I bled the rear brakes. That was my first time bleeding brakes. I had bought a brake bleeding kit, the type with the hand held vacuum pump, a while back. However, when I tried to loosen the brake bleeder screws I found that they were seized! After a quick look online to figure out what to do, I went to my local Checker Auto Parts store and got a can of PB Blaster. I used a wet paper towel to dampen the bleeder screw and sprayed on some PB Blaster. Man, that stuff reeks! After about 5 minutes I used the side of a crescent wrench and lightly tapped the bleeder screw. Then I dampened the screw with the wet paper towel again and sprayed some more PB Blaster on. I did the same to the other side. Then after waiting another 5 minutes, I decided to give loosening the screws a try. The screws came lose as if they were never rusted shut in the first place. Amazing stuff – that PB Blaster. However, my garage will stink for days.
Anyway, I followed the instructions that came with the brake bleeding kit. I bled all of the old black grimy brake fluid out while putting in the new Wilwood 570 degree brake fluid. I did that to both sides. The dang vacuum canister lid broke! Why is everything made out of cheap plastic nowadays!?! I grabbed some superglue and put the vacuum canister lid back together. If there are any leaks, the vacuum pump will not work. Fortunately I was able to get it back to the point where it was creating vacuum, but not as strongly as before. Stupid plastic crap. Anyway, I bled both rear drum brakes.
After I bled the brakes, I set the preload on the new Caltracs suspension. I just turned the traction bar until the leaf spring stop just touches the leaf spring, then gave each side a quarter turn extra. I did this with my wife sitting in the driver’s seat. I had a bear of a time tightening the nuts that go on either side of each traction bar. The nut is 1 1/8″ in size. I found a wrench that could just barely fit in there and do the job.
This morning I took the car out for a test drive to make sure the brakes still work. I took the car down a side street near my house, went up to about 15 mph and did some hard stops. Man that brake pedal feels solid now! Before I bled the brakes, I could push the brake all the way to the floor. Now, I can only push it about 3/4 way and it won’t go down any more. Its like a rock. No problem at all stopping the car.
Then, when I put the car back into the garage, I noticed that my front right tire looked really low. I checked the pressure – it was only 19 PSI. Hmm. Not good. I put it back up to 36 PSI. I will have to keep an eye on that thing.
| Print article | This entry was posted by Marvin on August 29, 2009 at 4:32 PM, and is filed under General. Follow any responses to this post through RSS 2.0. You can leave a response or trackback from your own site. |
