That sounds like the classic small air leak in the fuel system, letting it drain while sitting. It will run fine as long as it runs every day, and you will not likely see fuel dripping. Check every inch (centimeter) of the lines from the fuel tank to the injection pump.
On Thu, Jul 27, 2023 at 8:37 AM Dimitri Seretakis via Mercedes < mercedes@okiebenz.com> wrote: > Thanks Fred. I might take you up on that generous offer. Meanwhile, I’m > noticing a few more things. First of all, the lever was in the up position > this morning but the car still would not start although it seems like it’s > closer to starting. After cranking unsuccessfully, and turning the ignition > off, I noticed that the lever was back in the down position and when I > would turn the ignition back on and it would pop up and stay up while > cranking. Once the ignition was turned off the lever would fall back down. > I’m not sure what this means. > I haven’t heard anything from my friends and relatives in Greece! > > Sent from my iPhone > > > On Jul 26, 2023, at 11:06 PM, Frederick Moir via Mercedes < > mercedes@okiebenz.com> wrote: > > > > Dimitri, Dwight. > > FWIW. > > If the lever is down the rack is in the shutoff position and will not > > supply fuel at all. > > The vacuum shut-off device could be stuck, maybe? (I have a spare). > > The pump side plate, when removed, will let you access the rack. > > I have an OM602 injection pump with 90k mi. that you may have. > > Confused yet? > > Fred > > p.s. I hope your relatives in Greece are ok and not threatened by the > > wildfires. > > > >> On Wed, Jul 26, 2023 at 9:52 PM Dwight Giles via Mercedes < > >> mercedes@okiebenz.com> wrote: > >> > >> wish I could help you Dimitri but it never got a chance to sit as it > was a > >> daily driver. worth checking the IP. > >> > >> On Wed, Jul 26, 2023, 9:43 PM Dimitri Seretakis via Mercedes < > >> mercedes@okiebenz.com> wrote: > >> > >>> The 1990 300D 2.5 Turbo has been sitting for 5 days and now it won’t > >>> start. It glows just fine so I think it’s a fuel issue. The injector > pump > >>> shut off lever is in the depressed position. That doesn’t seem right. I > >> can > >>> pull it up but it just flops back down. If I hold it up while someone > >> else > >>> cranks it still won’t start. After many cranking attempts it almost > >> started > >>> a few times but I was afraid to drain the battery or kill the starter > so > >> I > >>> stopped. Not sure what’s going on. It actually did this to me a couple > of > >>> months ago after the car sat for a month while I sorted the relay > ground > >>> issue but it eventually did start. So it seems like when the car sits > it > >>> develops this problem. Maybe it’s an air leak at the injection pump? > >>> > >>> Sent from my iPhone > >>> > >>> _______________________________________ > >>> http://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 > >>> > >>> > >> _______________________________________ > >> http://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 > >> > >> > > > > -- > > Fred Moir > > Lynn MA > > Diesel preferred > > _______________________________________ > > http://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 > > > > > _______________________________________ > http://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 > > -- OK Don "Quality of life is inversely proportional to the amount of clothing you are wearing." "Whenever you find yourself on the side of the majority, it is time to pause and reflect." Mark Twain “Basic research is what I’m doing when I don’t know what I am doing.” Werner Von Braun "In science if you know what you are doing you should not be doing it. In engineering if you do not know what you are doing you should not be doing it." -- Richard W. Hamming, The Art of Doing Science and Engineering 2013 F150, 18 mpg 2017 Subaru Legacy, 30 mpg 1957 C182A, 12 mpg - but at 150 mph! _______________________________________ http://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
