I'll triple check tonight. Its kinda hard to find both lefts and rights that are slightly sloped... And where I can keep it in the 10-20 mph range.
-- John W Reames jwrea...@comcast.net Home: +14106646986 Mobile: +14437915905 On Jul 22, 2010, at 12:34, "Dillon, Meade M CIV SPAWARSYSCEN-ATLANTIC,53310" <meade.m.dil...@navy.mil> wrote: > Then the left side is suspect. > > -Max > > -----Original Message----- > From: mercedes-boun...@okiebenz.com > [mailto:mercedes-boun...@okiebenz.com] On Behalf Of John Reames > Sent: Thursday, July 22, 2010 11:02 AM > To: Mercedes Discussion List > Subject: Re: [MBZ] 1999 e300 rear end noise > > The noise does seem to disappear on right turns. > > -- > John W Reames > jwrea...@comcast.net > Home: +14106646986 > Mobile: +14437915905 > > On Jul 22, 2010, at 7:18, "Dillon, Meade M CIV > SPAWARSYSCEN-ATLANTIC,53310" <meade.m.dil...@navy.mil> wrote: > >> Easy to test an axle joint - weave side to side at speed with it's >> making noise; the bad axle gets louder when it's on the outside (under > >> load). >> >> -Max >> >> -----Original Message----- >> From: mercedes-boun...@okiebenz.com >> [mailto:mercedes-boun...@okiebenz.com] On Behalf Of John Reames >> Sent: Wednesday, July 21, 2010 6:25 PM >> To: Mercedes Discussion List >> Subject: Re: [MBZ] 1999 e300 rear end noise >> >> Well the sound is getting easier to make and to hear. >> >> At 10-20mph, on a a slight downhill under powered deceleration, it's >> kind of a thumping. Going up a slight hill with a steady speed (held >> by slight pedal input), the frequency is the same, but it is > different... >> More like (solid) tappets running while covered with sticky grease. >> >> I can hear it best with the only the rear passenger window down... >> With the rear driver window down, nothing. >> >> I'm now betting axle; passenger, outer cv. >> >> >> -- >> John W Reames >> jwrea...@comcast.net >> Home: +14106646986 >> Mobile: +14437915905 >> >> On Jul 20, 2010, at 20:00, John Reames <jwrea...@comcast.net> wrote: >> >>> Further observations.. >>> >>> There is definitely a rear end noise.. When slowly stopping or >> starting (ie in a garage), with the windows down, it sounds like a >> single hit of an exhaust pipe on chassis/body underpanel. >>> >>> When "coasting"; that is a steady speed on reasonably flat ground >> (slight incline is ok, decline not so much), with the foot off the >> pedal, at slow (crawl) speeds, the noise is almost identical and is >> repetitive. By 10-15mph, each noise is too brief to characterize, but > >> the frequency is up to 3-4 per second. By 25-30, it is in the 6-8Hz >> range, and it's hard to pick up over 30. >>> >>> At highway speeds, pulling off the pedal will result in a brief >> vibration (1 sec) during downshifts. >>> >>> Due to rain, I have been unable to pull a wheel and jack it... >>> I hope to be able to tomorrow night when I get home from work. >>> >>> -- >>> John W Reames >>> jwrea...@comcast.net >>> Home: +14106646986 >>> Mobile: +14437915905 >>> >>> On Jul 18, 2010, at 21:05, John Reames <jwrea...@comcast.net> wrote: >>> >>>> The flex discs have under 10k miles on them (both front and rear. >>>> >>>> The center bearing felt good when I replaced the discs, and the >> rubber around it was uncracked and pliable (but not mushy). I marked >> the shaft w/r/t the spiders on the transmission and diff. The new >> discs were installed in the same orientation as the old ones, and the >> shaft was positioned the same w/r/t my placement marks. I cleaned and >> relubed the centering sleeves; they looked good. >>>> >>>> I did a visual on the boots when i took the temps, and no cracks to >> be seen, and no grease was to be seen. >>>> >>>> Should the wheel be drooping or supported when trying to turn it? >>>> >>>> How do you check 210 diff mounts? They appear to be bushing type >>>> that >> are pressed into the rear of the subframe... >>>> >>>> -j. >>>> >>>> -- >>>> John W Reames >>>> jwrea...@comcast.net >>>> Home: +14106646986 >>>> Mobile: +14437915905 >>>> >>>> On Jul 18, 2010, at 13:30, Peter Frederick <psf...@earthlink.net> >> wrote: >>>> >>>>> Do a visual check of the rubber in the driveline (flex disks, >>>>> boots, >> dif mounts, ete) and replace any that show signs of serious age. >>>>> >>>>> You can check the drive axle half by jacking it up and holding the >> shaft while attempting to rotate the wheel. A bad outer joint will >> have distinct play and "clank" when you do this, just like a bad front > >> CV joint. >>>>> >>>>> It's unusual for a joint to fail with an intact boot, but not >> unheard of -- these are fairly flow flex joints, unlike those on >> front wheel drive cars. >>>>> >>>>> I do think you are on the right track, though, as whatever is >>>>> making >> the noise pretty much has to be rotating. >>>>> >>>>> Peter >>>>> >>>>> >>>>> -----Original Message----- >>>>>> From: John Reames <jwrea...@comcast.net> >>>>>> Sent: Jul 18, 2010 10:35 AM >>>>>> To: Mercedes Discussion List <mercedes@okiebenz.com> >>>>>> Subject: [MBZ] 1999 e300 rear end noise >>>>>> >>>>>> It can be reproduced more easily after running a few miles. >>>>>> >>>>>> The best way to reproduce it is to accelerate (in drive) and then >> take your foot completely off the pedal. >>>>>> >>>>>> On the highway, when the car slows sufficiently to downshift into >> 4th, a speed dependent rattle can be heard. If this is done in "4", so > >> the car cannot downshift, the noise is not heard. >>>>>> >>>>>> At about 65-70, the rattling is more like a vibration. I haven't >> tried forcing the car to not downshift at slower speeds, but the >> timing is approximately the same. At slower speeds, the noise is a >> more distinct rattling noise, almost like an exhaust pipe against a >> frame rail, except on the passenger side. (i have tweaked the exhaust >> alignment to create more space between the rail and muffler, and the >> noise remains unchanged). >>>>>> >>>>>> I am suspecting a cv joint at this time, so I crawled under the >>>>>> car >> and used a non-contact thermometer to "shoot" the joints from about > 1.5" >> away. I used the same positioning and distance on all of the joints. >>>>>> >>>>>> For the inner joints, I measured at the metal where the inner end >> of the boot attaches. Both sides were approximately 125 degrees, and >> were within 2-3 degrees of each other. For the outer joints, the >> passenger side was about 15-20 degrees hotter than the driver side >> (120 driver, 135 passenger). >>>>>> >>>>>> The diff was 150 degrees. >>>>>> >>>>>> Any thoughts/next steps? >>>>>> >>>>>> The exhaust is on the driver side, btw. >>>>>> >>>>>> Thanks >>>>>> -j. >>>>>> >>>>>> -- >>>>>> John W Reames >>>>>> jwrea...@comcast.net >>>>>> Home: +14106646986 >>>>>> Mobile: +14437915905 >>>>>> _______________________________________ >>>>>> 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 >>> >>> _______________________________________ >>> 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 > > _______________________________________ > 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
