Max Dillon wrote: > Gerry, > Time for a Liqui-Moly diesel purge treatment?
G: I'll try that. I've also heard that a tank, or partial tank, of refined cooking oil will clean out diesel engines? > A good start would be getting the injectors tested, and if they are good then > rebuild the delivery valves with fresh copper seals. Inspect the delivery > valves, they do wear at the seat where the plunger seals. If that seat looks > rough, you can try polishing with jewellers rouge or just get a new delivery > valve. G: It's been a long time since I've done anything to the 300D engine, so I'll check out all those possibilities if the Liqui-Molly doesn't help. I've also heard that a tank of biodiesel will clean the carbon out of a diesel engine? > A proper Italian tuneup is performed at high engine speed with high load. > Max Dillon > Charleston SC > '87 300TD > '95 E300 Yep, I was wrong about that. Thanks. Gerry > > On December 30, 2017 7:17:21 AM EST, archer75--- via Mercedes > <mercedes@okiebenz.com> wrote: > >My '83 300D (same drivetrain as yours), which also doesn't get driven > >much, does the same thing. It sort of "hammers" and shakes the engine > >at idle in any kind of weather. There are new engine mounts. Been > >meaning to ask the group about that but always forgot to do so. I > >vaguely recall that carbon buildup is supposed to be the cause and the > >cure is to lug the engine up a long grade with the engine temp topping > >out. I do know that either that engine or the '83 240D engine run > >better after an 80 mph trip to Orlando and back. > >Gerry > > > >Scott Ritchey via Mercedes <mercedes@okiebenz.com> wrote: > >> Different start problem scenario: I started my 82 SD (617 turbo) > >this a.m. for its annual trip to NC vehicle inspection station Temps > >were low teens overnight and probably mid 20s when I started it. > >Battery minder (usually on) was disconnected before start attempt. > >Engine had not run in weeks and probably only drove 50 miles in last > >year. I haven't been driving the car because I need to replace the > >flex disks (procrastinate, procrastinate). > >> The old engine started instantly but.. the whole car shook hard at > >idle although it smoothed out with just the slightest acceleration. > >After driving about 10 miles the engine idle was almost normal (just > >slight diesel shake). > >> Why did it shake so bad at cold idle? Any theories? Too cold? > >Hard engine mounts? Could the engine dampers be frozen? Maybe a wonky > >injector that wouldn't seal, spray, or meter right at idle? The shake > >was more violent than my earlier experience with bad glow plug(s). > >> Any thoughts? > >> > >> > >> _______________________________________ > >> 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 > >> > > > > > >-- > >arche...@embarqmail.com <arche...@embarqmail.com> > > > >--- > >This email has been checked for viruses by AVG. > >http://www.avg.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 > -- arche...@embarqmail.com <arche...@embarqmail.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
