No cooking oil. A tank of B80 to B100 will clean out the fuel system
for sure. It will probably help with the carbon in the cyl.
A steady diet of B20 is nice if you can find a source.
I ran some cars on B100 when I had some available. No problems if you
have compatible fuel lines.
archer75--- via Mercedes <mailto:mercedes@okiebenz.com>
December 30, 2017 at 3:54 PM
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?
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Max Dillon via Mercedes <mailto:mercedes@okiebenz.com>
December 30, 2017 at 7:50 AM
Gerry,
Time for a Liqui-Moly diesel purge treatment?
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.
A proper Italian tuneup is performed at high engine speed with high load.
archer75--- via Mercedes <mailto:mercedes@okiebenz.com>
December 30, 2017 at 6:17 AM
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 <mailto:mercedes@okiebenz.com>
December 29, 2017 at 9:43 PM
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
Kaleb C. Striplin via Mercedes <mailto:mercedes@okiebenz.com>
December 29, 2017 at 7:18 PM
I used to do the 3 glows then crank the heck out of till it starts
Sent from my iPhone
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