New common rail systems are way higher, like 15,000 psi. > -----Original Message----- > From: Mercedes [mailto:mercedes-boun...@okiebenz.com] On Behalf Of > Larry Turner via Mercedes > Sent: Wednesday, February 08, 2017 11:19 PM > To: MG via Mercedes <mercedes@okiebenz.com> > Cc: Larry Turner <l02tur...@comcast.net> > Subject: Re: [MBZ] Servicing Injectors > > 2000psi + Wow! A lot of pressure to work with. I've seen some machines on > the market that read the pressure - are they hard to come by? > > Thanks! > > Larry > > > On 02/06/2017 8:27 PM, MG via Mercedes wrote: > > According to 07.1-137 Disassembly, cleaning, assembly and adjustment > > of injection nozzles. The pressure is to be 135-143 bar for new and > > 120 for used. No more then 5 bar between the highest and lowest but > > closer is better. That's 1958 to 2074psi more or less. I think the > > ones I did a few years ago for my 6.5 chevy engine I got to 5 psi > > between the highest and lowest. It took a bit. > > > > Manfred > > > > Dan--- via Mercedes wrote: > >> I believe opening pressures should be around 1800 psi/115 bar, and > >> the set should be within 50 psi or about 3.5 bar of each other. > >> > >> Those are ballpark numbers from my memory, a dangerous thing at times. > >> > >> -D > >> > >> Sent from my iPad > >> > >>> On Feb 6, 2017, at 3:13 PM, Curt Raymond via Mercedes > >>> <mercedes@okiebenz.com> wrote: > >>> > >>> I thought it was .5 bar. 5 bar is like 72+ psi, that seems like a lot. > >>> Although, how much is injection pressure? > >>> -Curt > >>> > >>> From: Dan--- via Mercedes <mercedes@okiebenz.com> > >>> To: Mercedes Discussion List <mercedes@okiebenz.com> Cc: > >>> "d...@penoff.com" <d...@penoff.com> > >>> Sent: Monday, February 6, 2017 3:01 PM > >>> Subject: Re: [MBZ] Servicing Injectors > >>> > >>> There is a guy on German eBay that sells Monark nozzles at very > >>> competitive prices, and ships promptly. I just bought a set for the > >>> 300D and they were $137.00 shipped. I got them in about a week's > >>> time from the Fatherland. > >>> > >>> Bosch nozzles are garbage according to a couple of fuel injection > >>> people I talked to. > >>> > >>> You can disassemble your injectors and clean or replace the nozzles, > >>> but they really need to be recalibrated if you do, especially if you > >>> replace the nozzles. Insist on having the set matched to 5.0 bar or > >>> less, as the farther apart they are as far as opening pressures will > >>> have a significant effect on the smoothness of the idle and > >>> efficiency of the engine. > >>> > >>> If you've never done this before, don't have a pop tester and an > >>> almost surgically clean work area you're heading for a very > >>> unpleasant result. > >>> > >>> -D > >>> > >>> Sent from my iPad > >>> > >>>> On Feb 6, 2017, at 2:43 PM, Curt Raymond via Mercedes > >>>> <mercedes@okiebenz.com> wrote: > >>>> > >>>> You can but I don't think you'll be happy with the results. The > >>>> injectors have to be calibrated so they open at the right pressure. > >>>> From what I understand getting them calibrated as close as possible > >>>> to each other will result in a smoother and quieter engine. > >>>> Max and I have both used a fellow in NC for the job. It wasn't > >>>> terribly expensive, Max has had his done more recently and might > >>>> know the number. > >>>> RE: the injector nozzles, most people regard Bosch as garbage, > >>>> Mark, the guy in NC says if you need 4 injectors done order 6 Bosch > >>>> nozzles so hopefully you get 4 good ones. Monark are the ones worth > >>>> working with, they're a little more expensive but this is a case > >>>> where spending the money is worth it. > >>>> -Curt > >>>> > >>>> From: Larry Turner via Mercedes <mercedes@okiebenz.com> > >>>> To: "mercedes@okiebenz.com" <mercedes@okiebenz.com> Cc: Larry > >>>> Turner <l02tur...@comcast.net> > >>>> Sent: Monday, February 6, 2017 2:31 PM > >>>> Subject: [MBZ] Servicing Injectors > >>>> > >>>> Please excuse my ignora > >> > >> > >> _______________________________________ > >> 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 > > > > > > _______________________________________ > 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
