 Help Me Vent, ...rear calipers that is. |
|
|
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
|
| ljubodraz |
 May 18 2017, 10:30 AM
Post
#1
|
|
Member  Group: Members Posts: 64 Joined: 4-May 14 From: Chicagoland Member No.: 17,312 Region Association: Upper MidWest  |
I rebuilt my rear calipers and am now bleeding and adjusting vent clearance for first time. When I set clearance at high point of rotor to .004" is it OK that I can still hear friction at the high spot when I spin rotor? Should I just back the pads off until I no longer hear friction? Yes, I am mindful of whether inner or outer pad is dragging and no drag when both pads are pulled back.
Clearance seams to change every time I recheck after a bleed. (IMG:style_emoticons/default/headbang.gif) I tried adjustment with and without the spreader installed. I checked the front calipers and they both have drag present. Oh, and I will never bother painting my calipers again; zinc plate only. Did all the prep and oven curing for VHT paint. Fluid leaks from threads of bleeders when bleeding and paint gone. (IMG:style_emoticons/default/chair.gif) Thanks in advance! |
   |
 
|
  |
Replies(1 - 4)
| Elliot Cannon |
May 18 2017, 12:45 PM
Post
#2
|
|
914 Guru Group: Retired Members Posts: 8,487 Joined: 29-December 06 From: Paso Robles Ca. (Central coast) Member No.: 7,407 Region Association: None 
|
|
|
|
|
| ljubodraz |
May 18 2017, 01:02 PM
Post
#3
|
|
Member Group: Members Posts: 64 Joined: 4-May 14 From: Chicagoland Member No.: 17,312 Region Association: Upper MidWest |
QUOTE(Elliot Cannon @ May 18 2017, 01:45 PM)  Thanks Elliot. (IMG:style_emoticons/default/dry.gif) I've been on Eric's site and read most every post he's made. You're not answering my question though. It is about how to properly set the venting clearance, with or without pads making scrubbing sound on high part of rotor even when clearance is set to .004". To avoid further hate, I'm currently unemployed and couldn't justify buying rebuilt calipers from PMB with all the spare time I have. Even then, I'd have to adjust them myself. Anyone? |
|
|
|
| Shadowfax |
May 18 2017, 01:12 PM
Post
#4
|
|
Show us the meaning of haste Group: Members Posts: 509 Joined: 19-January 15 Member No.: 18,340 Region Association: South East States
|
Check that the rotor isn't warped. Then try to set the clearance to 0.008 and see if it is still dragging.
|
|
|
|
| ljubodraz |
May 18 2017, 01:33 PM
Post
#5
|
|
Member Group: Members Posts: 64 Joined: 4-May 14 From: Chicagoland Member No.: 17,312 Region Association: Upper MidWest |
Thanks Shadowfax. I'll give that a try.
According to Eric Shea's posts, every rotor will have a bit of a high spot. Is it bad to have a little drag or is my goal no drag period? I understand drag can cause heat, expansion and seizure if bad enough. I believe Eric stated once that he doesn't even bother using a feeler gauge anymore. I think he said he simply barely backs the pad off from contact at high point of rotor. |
|
|
|
|
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 19th May 2024 - 11:32 PM |
Invision Power Board
v9.1.4 © 2024 IPS, Inc.