I think you and Meade are exactly right. I don't think it shifted again between 20 and 75. It sounded like it was revving pretty high at 70 mph. The third little sets of dots is around 70 mph. This car DEFINITELY did not shift again at those speeds. While I was driving here (500 mile trip that was 90% highway) I don't think it shifted past 30 mph. But, I don't know specifically. SO, now I need to figure out how to check the Bowden cable. That's the little squiggly red cable thing, right?
Don Snook -----Original Message----- From: Jaime Kopchinski <jaime...@gmail.com> Sent: Friday, October 4, 2019 1:24 PM To: Mercedes Discussion List <mercedes@okiebenz.com> Subject: Re: [MBZ] update on "Bob Dole" the 123 I think you have a broken bowden cable. Normally the transmission sits in second gear at idle and stationary. It downshifts to first when you step on the accelerator any amount. When its adjusted properly, you never even notice. This is to reduce creep. Since you are starting in second gear and shifting early, It seems very likely its the cable. That is, the transmission doesn't know you're accelerating. In L, it will hold first gear unit redline no matter how hard you press the accelerator. If you move it to S and back to L quickly, you'll be in second at that point. Shift back up to S and you'll be in third. And D goes to forth if you're going fast enough. Try winding out each gear like this to ensure you can distinctly feel each one. Its very likely you're not getting into 4th and you drove without any issues at 70mph for a long period of time. Jaime On Fri, Oct 4, 2019 at 2:14 PM Don Snook <donald.sn...@fedex.com> wrote: > Ok. I took it for a drive for lunch. I think these start out in second > unless it is floored then the kickdown works. So, I left work and floored > it. I think it was still in second and it shifted at about 18-20 mph. > Then, I don't think it shifted again. Really. I never felt another > shift. So, I tried taking a side road. I pulled over and put the shifter > into L. I assume that means it is in first. I let the revs get > pretty high and moved it up to S and it shifted. Then, I went ahead and > moved it > to D. It still did not shift again. Could this be starting in second > and then staying in third without getting to 4th or overdrive? When > the tach was working on the trip back 75 mpg was about 3100 rpm which > would be pretty accurate. But, when I drove it on the highway it felt > like one shift from 2-3 and then no more shifts. It just stayed in > that gear all the way to 70 mph. I couldn't go faster than that > because of traffic and cops. I pulled onto an on -ramp and floored > it. It had already shifted, but even at 30-35 with it floored, it never down > shifted. > > Don Snook > > > > -----Original Message----- > From: Jaime Kopchinski <jaime...@gmail.com> > Sent: Friday, October 4, 2019 12:54 PM > To: Mercedes Discussion List <mercedes@okiebenz.com> > Subject: Re: [MBZ] update on "Bob Dole" the 123 > > To dial in the trans, I recommend you get an actual pressure gauge and > set the modulator pressure by the book. It takes the guess work out > of it and really does hit that perfect balance between soft and firm > shifts. There are a few cheap gauge kits out there and connection is > easy... just remove the plug next to the modulator and connect up the hose to > the gauge. > > Jaime > > > On Fri, Oct 4, 2019 at 1:49 PM Andrew Strasfogel via Mercedes < > mercedes@okiebenz.com> wrote: > > > I predict that your biggest challenge will be fine tuning the > > shifting of the transmission. > > > > On Fri, Oct 4, 2019 at 1:10 PM Meade Dillon via Mercedes < > > mercedes@okiebenz.com> wrote: > > > > > Good progress! > > > > > > What is the zero to 60 time? > > > ------------- > > > Max > > > Charleston SC > > > > > > > > > On Fri, Oct 4, 2019 at 12:19 PM Don Snook via Mercedes < > > > mercedes@okiebenz.com> wrote: > > > > > > > I have taken to calling my new to me 123 "Bob Dole" It has to > > > > be said quickly like the old Senator used to do when he referred > > > > to himself in > > > the > > > > third person. The reason for the possible name is > > > > > > > > > > > > 1. It is funny > > > > > > > > 2. I lived in Kansas for 17 years > > > > > > > > 3. The car is yellow (sort of) like a Dole Banana. ( I > suppose I > > > > could call it Chiquita) > > > > > > > > Anyway, I took some advice from listers combined with the stuff > > > > from > > Kent > > > > (Mercedes Source) and tried a few things last night. I did a diesel > > > > purge. Changed fuel filter (secondary big one) and I removed > > > > the > banjo > > > > bolt and cleaned it out. I am not sure why but I thought the banjo > > bolt > > > > was bigger. It was definitely dirty. The little hole in the > > > > bolt > was > > > > clogged up black thick stuff. I did the oil cap blow by test. The > > cap > > > > danced a little. But, not much. I was watching a video from Kent > > where > > > > he proposes an old diesel cleanse. He takes vegetable oil and adds > a > > > > little liquid moly oil supplement and runs the car from an > > > > external > > tank > > > > and uses the whole gallon of vegetable oil. It did seem to improve > > the > > > > smoothness and he claimed it could help with blowby. I'm sure > > > > it can't hurt. I am going to try it later. > > > > > > > > BUT, doing the diesel purge and cleaning out banjo bolt made a > > > > BIG difference. Yes, it is still a slow diesel. But, it seemed > > > > a lot > > > faster. > > > > I think the vacuum modulator on the transmission might need to > > > > be addressed. The shifts are very smooth. In fact, they may be > > > > so > > smooth I > > > > can't feel the second one. It feels like it might be starting in > > second > > > > and then it shifts pretty early and then I don't feel the next > > > > shift > at > > > > all. I drove it to work today. SO, at lunch I will try again to > see > > > if I > > > > can determine where the shifts occur. > > > > > > > > Donald H. 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