From owner-diesel-benz-digest-at-digest.net Thu Dec 14 14:19:20 2006 From: diesel-benz-digest diesel-benz-digest Thursday, December 14 2006 Volume 01 : Number 2322 Forum for Discussion of Diesel Mercedes Benz Automobiles Derick Amburgey Digest Coordinator Contents: Re: [db] This won't upset anyone: 123 upper control arm, I think..... RE: [db] Vacuum on tranny Re: [db] Vacuum on tranny [db] FIXED! FW: How to tell a non-turbo from a turbo diesel? Diesel Benz Digest Home Page: http://www.digest.net/diesel-benz/ Send submissions to diesel-benz-digest-at-digest.net Send administrative requests to diesel-benz-digest-request-at-digest.net To unsubscribe, include the word unsubscribe by itself in the body of the message, unless you are sending the request from a different address than the one that appears on the list. Include the word help in a message to stag-digest-request to get a list of other majordomo commands. ---------------------------------------------------------------------- Date: Tue, 12 Dec 2006 16:20:54 -0600 (CST) From: Subject: Re: [db] This won't upset anyone: 123 upper control arm, I think..... Ball joint all torn up, or what? Replacing upper control arms on a 123 is a piece of cake. >I noticed recently that my front right tire was wearing oddly, and >seeming to move around in odd directions (felt like from the wheel and >sounded like) so this morning I got up early to mess with it (working >2 jobs will make you do things like that....) and found that >apparently the old thumpy brakes that I replaced about a month and a >half ago managed to tear up the upper control arm stuff pretty >severely. What advice do you have? I'm going to ask Rusty about it if >I can ever catch him at his desk, but want your opinion. (It's worth >its weight in gold.) > >Jason >(Still loyal to that '81 240D, even though its falling apart....) ------------------------------ Date: Tue, 12 Dec 2006 20:26:04 -0600 From: "Alec Cordova" Subject: RE: [db] Vacuum on tranny I thought there were two signals to the diesel trannies: our beloved vacuum, and a mechanical connection from the accellerator linkage. One tells the tranny how soon to shift, the other tells it how hard to shift. I just never remember which one tells it what. And it could be that the mechanical linkage was only used on some models. Alec > -----Original Message----- > From: owner-diesel-benz-at-digest.net > [mailto:owner-diesel-benz-at-digest.net]On Behalf Of jasonbassett-at-juno.com > Sent: Tuesday, December 12, 2006 12:32 PM > To: Diesel-benz-at-digest.net > Subject: [db] Vacuum on tranny > > > Actually, what happens if you disconnect the line from the tranny, yes > it sees 0 vacuum and thinks full throttle, but no, it won't shift > smoothly that way, unless you drive it at full throttle all the time. > Why? Simple. When the tranny assumes full throttle, it raises the > shift points almost to the "redline," and they also become very "high- > powered" (don't know how else to describe putting more pressure on the > clutches in anticipation of a large power input to absorb.) So you did > the worst thing you could have done to try to smooth it out. > > Ask my Kitty how I know this!!! > > Jason ------------------------------ Date: Tue, 12 Dec 2006 18:29:33 -0800 From: Kevin Subject: Re: [db] Vacuum on tranny In the case of the two 124s, it appears to be all done through the VCV somehow, as with vacuum disconnected it shifts exactly as Jason describes. I think the only thing that is still linkage there is the kickdown switch. The books lead me to believe there is a piece of linkage as you describe that does that, but it never seems to be cause for concern (like stuck switches and busted vacuum lines). The 78 has no vacuum line to the trans that I can tell. K On Tue, Dec 12, 2006 at 08:26:04PM -0600, Alec Cordova wrote: > I thought there were two signals to the diesel trannies: our beloved vacuum, > and a mechanical connection from the accellerator linkage. One tells the > tranny how soon to shift, the other tells it how hard to shift. I just never > remember which one tells it what. > > And it could be that the mechanical linkage was only used on some models. > > Alec > > > -----Original Message----- > > From: owner-diesel-benz-at-digest.net > > [mailto:owner-diesel-benz-at-digest.net]On Behalf Of jasonbassett-at-juno.com > > Sent: Tuesday, December 12, 2006 12:32 PM > > To: Diesel-benz-at-digest.net > > Subject: [db] Vacuum on tranny > > > > > > Actually, what happens if you disconnect the line from the tranny, yes > > it sees 0 vacuum and thinks full throttle, but no, it won't shift > > smoothly that way, unless you drive it at full throttle all the time. > > Why? Simple. When the tranny assumes full throttle, it raises the > > shift points almost to the "redline," and they also become very "high- > > powered" (don't know how else to describe putting more pressure on the > > clutches in anticipation of a large power input to absorb.) So you did > > the worst thing you could have done to try to smooth it out. > > > > Ask my Kitty how I know this!!! > > > > Jason ------------------------------ Date: Thu, 14 Dec 2006 16:48:59 -0500 From: "Black, Waylon" Subject: [db] FIXED! FW: How to tell a non-turbo from a turbo diesel? And the winner is? ALDA. Seems the 'professional' mechanic could remember to hook the hose from the ALDA to the 'relay' but threw away the hose from the 'relay' to the intake manifold. I used my 300 SD to compare. I hooked up a piece of hose from the intake barb to the ALDA and went for a quick blast. Much better! Came back home to see a long black streak on the road(about 30 feet long). It's not what your thinking, see below. I noticed that when I left I made a LOT of black smoke - enough to leave a 30 ft long black line of soot on the road. It only happened the one time and has been great since(stuck ALDA?). Thanks for the answers - got me motivated enough to get my lazy arse under the hood. I've been driving it this way since I got it(about 9 months and 18K miles). Waylon Black Little Elm, Texas - -----Original Message----- From: Jerry Kaidor [mailto:jerry-at-tr2.com] Sent: Monday, December 11, 2006 6:06 PM To: Mark Frost Cc: Black, Waylon; diesel-benz-at-digest.net Subject: Re: [db] How to tell a non-turbo from a turbo diesel? > Waylon, > The benefits of the turbocharger will only be seen if the IP is delivering > additional fuel to match the additional air supplied by the turbo. > > Additional enrichment is provided by the ALDA unit on the injector pump. *** It's possible for the ALDA to just be out of adjustment. There is a screw at the top. My 300SD went from seriously lame to just fine with a 1/4 turn of that screw. - Jerry Kaidor > > Other reasons for lame performance: > Restricted air/fuel flow (change filters) > Restricted throttle travel (check linkage to make sure pedal-on-floor > translates to throttle against stop. > > Let us know what you find, > Mark Frost > > > On 12/11/06, Black, Waylon wrote: >> >> Aside from the obvious. >> >> What I mean is how can one tell that the installed long block is >> actually a turbo diesel? >> >> I bought a 1983 300D turbo from the back lot of a repair shop. Looking >> under the hood - it appears that the engine has been replaced. The car >> has never been as strong as my 116 300SD - which will run off and hide >> from this 300D. The turbo appears fine and even sound like it is >> working. >> >> The 300D's power is somewhere between my mom's 240D and my SD. What I >> expect a 300D non-turbo would be like. Engine is silky smooth, starts >> easily in freezing temps, etc. >> >> I have heard/read that if you add the turbo hardware to a non-turbo >> motor, the power increase will be little to none as the additional air >> will not have the additional fuel required by the turbo motors(IP and >> injectors). >> >> I can see where a sleazy shop would/could by a non-turbo >> engine(cheaper), add the hardware/oil pan but not replace install the >> turbo's injectors/IP(no need to adjust timing). >> >> Any thoughts opinions are welcomed. >> >> Waylon Black >> Little Elm, Texas >> > > > > -- > "There is a fine line between 'hobby' and 'mental illness'." > --Dave Barry ------------------------------ End of diesel-benz-digest V1 #2322 **********************************