I had a leaking exhaust poppet valve in the vac-pump. Mighty-Vac did not show that.
On Wed, Jun 5, 2013 at 7:24 PM, ernest breakfield < erne...@backyardengineering.org> wrote: > as i investigate further, i'm suspecting that this issue isn't with any > one line to any one door, as it's equally slow to lock or unlock, and there > isn't a significant difference between doors. (right rear seems a little > slower up and down, but i seem to recollect that it's always been a little > stiffer.) > > i'm having a hard time reading some of the smaller text in the scans > of the factory service manual pages, and compounding the issue is the fact > that some of what the manual says isn't what i'm finding on the car. hose > line colors aren't the same, fittings don't seem to be hooked up exactly as > depicted; it's all a bit fiddly. > > since the shifting still seems to be sharper than what i think is > ideal, i'm wondering if i don't have a significant leak at the Transmission > or somewhere en route to the Trans; any typical places i should look? > > > cheers! > e > > On 03/Jun/13 17:49, Scott Ritchey wrote: > >> Yes get them from Q2 and get spares. Also, another common problem on the >> 123 models is the vacuum switch inside the driver's door. That switch can >> leak and it can also be out of adjustment to the point it "dumps" the >> vacuum >> in one position or the other. As you troubleshoot you may find a leaking >> vacuum motor or circuit (e.g. the locking gas cap circuit leaks). You can >> use a golf tee to plug the line to that circuit or device to get the rest >> of >> the system working or to allow you to troubleshoot the rest of the system. >> This way you can identify all the failed parts vs. fixing one thing only >> to >> find another problem. >> >> -----Original Message----- >> From: Mercedes >> [mailto:mercedes-bounces@**okiebenz.com<mercedes-boun...@okiebenz.com>] >> On Behalf Of ernest >> breakfield >> Sent: Sunday, June 02, 2013 11:01 PM >> To: Mercedes Discussion List >> Subject: Re: [MBZ] tracking down vacuum issues? FOLLOW-UP >> >> thanks again to all who pitched in with pointers on tracking down the >> issues on this! >> >> finally got around to poking into this some more; had to deal with >> the getting the wifelets econo-box to pass Calif smog first. (cleaned up >> EGR stuff, replaced a cracked Ex Manifold, ran de-carbonizing gunk >> through the system, etc., all to no avail; still blows high on NOx, and >> now also blows high on HCs,... <sigh>. but that's another story.) >> >> got under the hood of the 300D ('85 Calif) to start looking at >> stuff at the beginning, since none of the doors seem to be >> locking/unlocking significantly worse than any of the rest. starting at >> the check valve, i found that the rubber 120* 3-way and 90* 4-way 'T's >> were cracked at the ends to the point where it was remarkable that they >> were staying in place at all! >> has anyone had any success in sourcing proper replacement parts for >> these recently? is this the sort of thing Trent might be able to help >> with (Trent?), or am i stuck with hoping the dealer will be useful, >> or,...? >> >> >> cheers! >> e >> >> >> >> hi! >>>> >>>> symptoms of a vacuum leak are rapidly showing up in our '85 300D >>>> (Calif); first the locks got slow to engage (with the Right Rear >>>> being the first and worst), shifting has become 'abrupt', and it's >>>> rapidly progressed to where the motor is intermittently slow to shut >>>> down when keying off. >>>> >>>> is there a resource for how to trace down and repair leaks that >>>> anyone can point me to? any hints or tips as to what tool(s) i'm >>>> going to want? >>>> >>>> as always, thanks in advance for any help! >>>> >>>> >>>> cheers! >>>> e >>>> >>> > ______________________________**_________ > http://www.okiebenz.com > For new and used parts go to www.okiebenz.com > To search list archives > http://www.okiebenz.com/**archive/<http://www.okiebenz.com/archive/> > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/**mailman/listinfo/mercedes_**okiebenz.com<http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com> > -- Hans Neureiter, Katy, TX '82 300SD '01 VW New Beetle 1.9L TDI _______________________________________ 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://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
