Re: [MBZ] Injector Black Death [was: Re: I leave town and people get a brilliant idea to buy the kid a car while I am gone]

2020-02-18 Thread Dan Penoff via Mercedes
M642, I think. There’s a forked shaped clamp that holds the injector in place, with a copper crush washer at the nozzle that seals (or tries to) against combustion gasses. A couple of issues with this design: The bolt that holds the forked clamp is small and tends to stretch over time as it ag

Re: [MBZ] Injector Black Death [was: Re: I leave town and people get a brilliant idea to buy the kid a car while I am gone]

2020-02-18 Thread Curley McLain via Mercedes
I gather: rather than being screwed into the prechamber ring as on prior OM engines, these injector nozzle holders are held in place with a single clamp bolt?   What model number engines are afflicted by this? Rick Knoble via Mercedes February 18, 2020 at 9:31 AM

Re: [MBZ] Injector Black Death [was: Re: I leave town and people get a brilliant idea to buy the kid a car while I am gone]

2020-02-18 Thread Dan Penoff via Mercedes
Yeah, it’s a really great car in a lot of respects, as it seems to bridge the reliability and ease of service from the W210s to the complexity and difficulty of service of later models. While this particular car is a little “tired”, so to speak, it’s still got some miles left in it if properly

Re: [MBZ] Injector Black Death [was: Re: I leave town and people get a brilliant idea to buy the kid a car while I am gone]

2020-02-18 Thread Rick Knoble via Mercedes
>> What causes the Injector Black Death thing? The injector seals start weeping combustion gases, and the injectors become ever more seized in place by carbon deposits. The longer it is neglected, the more difficult it is to remove them v It is a great negotiating point, if has just started and

Re: [MBZ] Injector Black Death [was: Re: I leave town and people get a brilliant idea to buy the kid a car while I am gone]

2020-02-18 Thread Dan Penoff via Mercedes
Don’t know. He just said a couple of the injectors were seeping, as they do when the Black Death occurs. I’ve got the tools and parts, it’s a major undertaking that I wasn’t willing to mess with unless an injector was leaking. Leave well enough alone, in other words. That and I can see some evid

Re: [MBZ] Injector Black Death [was: Re: I leave town and people get a brilliant idea to buy the kid a car while I am gone]

2020-02-18 Thread Karl Wittnebel via Mercedes
I figured one would pull all of them and replace the seals if any one was leaking. Are the new seals going bad already? Slide hammer and some sort of long pick to get the seal out? On Mon, Feb 17, 2020, 12:24 PM Craig via Mercedes wrote: > On Mon, 17 Feb 2020 14:32:39 -0500 Dan Penoff via Merce

[MBZ] Injector Black Death [was: Re: I leave town and people get a brilliant idea to buy the kid a car while I am gone]

2020-02-17 Thread Craig via Mercedes
On Mon, 17 Feb 2020 14:32:39 -0500 Dan Penoff via Mercedes wrote: > A couple of the injectors are leaking, so it’s trying to do the Black > Death thing again. Now that I’ve done this and have the tools, it’s not > a big deal, but it’s a PITA that will most likely never end. What tools does one n