Rich, I suspect your bleeding method isn't working too well.
I have the "Power Bleeder" which pressurizes the reservoir, if you'd like to borrow it. You'll need to make sure the two rubber sensor caps on top of the reservoir are in good shape prior to pressurizing. The "old school" way of two people working together, one pressuring via pumping the brake pedal and the holding with the second opens/closes the bleed valve to allow fluid/air to escape works well but you risk destroying the seals in the master cylinder if fluid changes have been neglected and there is gunk beyond the normal range of travel that the seals hit when the pedal sinks to the floor. I used to use the gravity drain method, and just attach hose from bleeder to a drain bottle or can and let physics pull the fluid out. Slow, but safe and effective. Now I can do the job with MORE POWER! -Max -----Original Message----- From: mercedes-boun...@okiebenz.com [mailto:mercedes-boun...@okiebenz.com] On Behalf Of Rich Thomas Sent: Friday, October 22, 2010 7:40 AM To: Mercedes Discussion List Subject: Re: [MBZ] Brakes, again (300SD) Yes, all 4 in the proper sequence, twice. I'm thinking I should put some teflon tape on the bleeders to seal up those threads a bit and keep the air from getting in my bleed tube (using a Mityvac), though I don't think it is going back into the calipers. At first they were a bit mushy after I put on the new caliper and filled it and bled it a bit, so I went around the car again and then it was better, pretty much as it was before I started the exercise. I'll take a look at the bushing, but the pedal does not seem to have play in it, just takes some travel to start brake engagement. I guess they aren't "touchy!" --R On 10/22/2010 7:21 AM, Rolf wrote: > Check the bushing on the brake pedal where it meets the rod that goes > into the booster. If this is missing or deteriorated then you get more > travel before braking. Otherwise is sounds like you need to bleed > more. Did you bleed all 4? > > -Rolf > > On 10/22/2010 7:14 AM, Rich Thomas wrote: >> So I got the new caliper on and hooked up, and system bled as best I >> could (there seems to be a lot of air leakage around the bleed >> nipples) with new fluid. The pedal feel is not a lot different from >> before, still seems to have about an inch of travel before getting >> much braking, and seems a bit soft though the brakes work OK. Might >> this be a master cylinder issue, or is that just the way they are? >> >> --R >> >> _______________________________________ >> http://www.okiebenz.com >> For new and used parts go to www.okiebenz.com To search list archives >> http://www.okiebenz.com/archive/ >> >> To Unsubscribe or change delivery options go to: >> http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > > _______________________________________ > http://www.okiebenz.com > For new and used parts go to www.okiebenz.com To search list archives > http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > _______________________________________ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com -------------- next part -------------- A non-text attachment was scrubbed... Name: smime.p7s Type: application/x-pkcs7-signature Size: 5688 bytes Desc: not available URL: <http://okiebenz.com/pipermail/mercedes_okiebenz.com/attachments/20101022/2ecd32f4/attachment.bin> _______________________________________ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
