I did all the brakes, recently. However, while pulling my 9K trailer, it seems all wasn't well.
The pedal went to the floor a bit too much. After pumping them once, they braked better. I looked at the rear drums, and wondered if they had ben turned too much, or need some adjustment.
What is the normal diagnostic for this? A master cylinder or what? And how to you check for this? Thanks a bunch.
Did you adjust your rear brakes up? New or not, they need to be adjusted. I usually click them a few times until the drums are rubbing the shoe linings, then back off 2 or 3 clicks.
Any good machine shop would know if your drums are too wide (thin) Most drums have the max. size marked on them. You use a special tool to check run-out on drums.
If you didnt replace master cyl, wheel cyl, calipers, or rubber brake lines, I doubt you have air in your system.
djdave
Thanks, Dave. Yes, I replaced front hoses and calipers, and rear shoes. Feels like a brake adjustment, even though I adjusted them up when I replaced them.and I wonder how come the self adjusters aren't effective? I bleed the crap outta the system, even got rid of the old brake fluid. Thanks for any help!!
On Mon, 06 Nov 2006 13:19:25 +0000, Victor V rearranged some electrons to form:
You didn't get the adjusters on backwards, by chance? If you inadvertantly swapped the left & right sides, they will get more loose with every click rather than tighter.
Ok, good. What's the symptom for booster failure and master cylinder starting to go? I had to adjust the back ones up last month before I did the brakes, and it felt the same way. It's possible a previous guy had switched the adjusters, though.......the recent brake job he did I had to re=do completely.
VV
First off it were me, I would check vacuum to the brake booster. After confirming good vacuum, a quick check of power booster condition is easy test. Engine turned OFF, pump pedal slowly untill a solid pressure is felt. Now hold pedal (If pedal depresses slowly at this time a leak is occuring somewhere in the juice circuit). Back to the booster while still holding pedal pressure start engine. Now if vacuum is pulling a GOOD booster the pedal will go DOWN slightly. This happens because you are now being "assisted" in pushing the pedal. If the pedal does not feel like got "assisted" then you must check for problem. If all this checks out, and your pedal is spongy at a stoplight, or sinking, either there is air in the brake lines or the brake master cylinder is leaking internally.
Hope this covers all of the bases, Victor.
djdave
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