badjuju Posted October 1, 2006 Share Posted October 1, 2006 I'm outside right now trying to put new pads on the rear brakes of my 81 turbo, and i swear they're too damn thick to fit in... the outer pad seems like it's about 5 mm too thick... am i missing something crucial here, or did shucks gimme the wrong pads? Quote Link to comment Share on other sites More sharing options...
badjuju Posted October 1, 2006 Author Share Posted October 1, 2006 K, the problem is that the inner piston is not compressing enough to allow the outer pad in. Is there a problem with just using a C clamp to do this? Quote Link to comment Share on other sites More sharing options...
mark Posted October 1, 2006 Share Posted October 1, 2006 THe piston needs to be rotated. It kinda screws back into place. Use a large flat head screw driver. Quote Link to comment Share on other sites More sharing options...
badjuju Posted October 1, 2006 Author Share Posted October 1, 2006 I did, the piston is now inside the housing, but there is another piston of sorts on the other side of the housing, which I'm having trouble compressing. Quote Link to comment Share on other sites More sharing options...
mark Posted October 1, 2006 Share Posted October 1, 2006 Did you open the bleed screw? Did you try to rotate that one also? Quote Link to comment Share on other sites More sharing options...
JMortensen Posted October 1, 2006 Share Posted October 1, 2006 You only rotate the outer piston (that faces the rotor). The inner piston cannot rotate. If the piston is rotated all the way in, then that is not your problem. The other likely issue is that the top huge part of the caliper is seized up and won't slide on the bottom part. You should take the two sides apart and then clean the groove where they slide on each other and put a little anti-seize on there so that they move smoothly. I bet that'll fix it. Quote Link to comment Share on other sites More sharing options...
Cruez Posted October 2, 2006 Share Posted October 2, 2006 Sounds like the bore of the caliper is corroded. Probably from moisture in the system.. Quote Link to comment Share on other sites More sharing options...
badjuju Posted October 3, 2006 Author Share Posted October 3, 2006 The secondary piston spoken of above was frozen. I broke a 6" C Clamp getting it to close... lol but, it finally closed, and now my brakes are back in order, if a little squishy. I think I need to bleed the front as well as the back? Quote Link to comment Share on other sites More sharing options...
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