brakes Weak brakes

[Stevenc22]

In the end my brake problem was the rear adjusters not the booster linkage!

[silasmoon]

Which adjusters? The 17mm pivot bolts? Or the slave cylinders?

['76mintgrün'02]

adjusters on the slave cylinders?

 

when adjusting the rears, I like to put one 17mm wrench on each adjuster and then simply pull down on both wrenches to move the shoes out against the drums.

 

it is easier for my brain than trying to remember clockwise/counter clockwise stuff.

[silasmoon]

Thought Steve may be referring to the replacement of his slave cylinders. 

 

I set the 17mm adjustment so that the brakes grabbed properly with the e-brake according to the blue book. This was with the shoe replacement. Should I just crank them down some more? 

['76mintgrün'02]

adjusting the brakes happens first, with the ebrake loose, correct?

Then the handle is set to four clicks to grab, using the cable adjusters... or something like that.  Right?

 

I would definitely just jack it up and see how much movement there is in the adjusters, to get them tight against the drums.  Tight, as in very slight drag... based on sound.

 

If they are still right there, then that was not your problem.  It is just so easy to check, why not do it?

 

Same with bleeding.  Go through the motions and watch for bubbles.  Pump the pedal, along with the pressure bleeder.  Rap on the calipers, to loosen any bubbles and bleed away.

 

It just seems like the logical place to start.

 

Over and Out.

 

 

 

 

[Stevenc22]

The rear brake shoes adjusters were my problem!

[yeewiz]

4 hours ago, silasmoon said:

I set the 17mm adjustment so that the brakes grabbed properly with the e-brake according to the blue book. This was with the shoe replacement. Should I just crank them down some more? 

 

Set the 17mm adjustment without concern for the e-brake.  Adjust the 17mm out until the shoes contact and stop the drum.  Then back off the 17mm so the drum turns free.  Your shoes are then set correctly.  Then use the adjusting nut at the e-brake handle to adjust the e-brake.

[Simeon]

You can get big 'corrections' in drum brakes after initially adjusting them as high spots are knocked off the shoes. Definitely worth a shot. 

[silasmoon]

Reset the drum brakes today. I definitely had some play in both of them even though we had adjusted them not long ago. The brakes feel better for sure. I still can't get tire screeching lockup really. Although a friend and fellow 2002'er noted my brakes felt much better than his Tii's so perhaps I am just being picky. Will do more shakedown runs this weekend to see if they're seating properly. 

[AustrianVespaGuy]

Bumping this thread to get some clarification.  Similar issues as above - braking system generally good condition, everything at least semi-recently overhauled.  Have good 'around town' braking, short/firm pedal, etc.  But when I brake HARD the pedal, though only about half way down, feels like it comes up against a 'wall' and more pressure does not seem to equate to more braking, and I can't seem to lock up the tires. Granted they're brand new 195 Falken Azenii(? What's the plural of 'Azenis?) So pretty sticky, but still feel like it ought to be better.  How do maladjusted rear shoes and/or brake booster issues manifest as difficulty in applying additional pressure to the pads?

[ray_]

When I adjusted the shoes, the initial bite improved dramatically. 

 

... Have you looked to see of your pads/shoes are glazed?

 

Cheers,