Car starts, but dies when in gear - Page 2 - Mercedes-Benz Forum

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post #11 of 12 (permalink) Old 05-22-2010, 08:29 AM
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Date registered: Jul 2009
Vehicle: 1964 Mercedes 220Sb
Location: Muskegon, Michigan
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Originally Posted by pdalporto View Post
Okay, I'm pretty sure this is probably self-evident to most of you, but it's not to me. I am going to start removing the intake manifold tonight, but have been examining the manuals and such. One of the directions has me confused. It says "Deactivate fuel lines." Exactly what does that mean?
Not really familiar with your car but that usually means relieve the pressure in the fuel lines, in carbs there usually isn't much, in fuel injection there is. might be a nozzle with a valve like a bike tire on it, or just undo a fuel line (which you'll have to do anyway I think), either way do it with the engine cold (it would probably hurt to remove the manifold with the engine hot anyway) or you'll have fire damage to repair too...

Also disconnect the fuel pump or pull the fuel pump fuse to avoid that whole issue

Last edited by tgikal; 05-22-2010 at 08:44 AM.
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post #12 of 12 (permalink) Old 05-22-2010, 05:57 PM
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Date registered: Jun 2004
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Start with the basics.
REplace the cap,rotor,leads and plugs. Set the timing correctly.
Check the engines compression.
Do the valves (if it has the adjustable tappets)
Check the throttle linkage to make sure you are getting full throttle and no play exists in the linkage .All parts are available and after 200,000 the linkage Will be sloppy.
Replace the manifold O rings.
With the manifold apart you will need to get the injectors cleaned ( there are plenty of places that do it for a cost per injector).
i would also consider replacing the fuel distributor at that milage too. Again there are places that do an exchange service on these.
Once you have that organized,consider changing the cold start injector.
This is probably what is causing the excess fuel as it may be stuck open.
This is all very basic stuff .
The complex stuff begins now.
At that milage the timing chain and tensioner need replacing.
If the car has been running rich there is every chance that the bores are getting worn so the compression may be down a bit.
Check the thermostat and see if it is closing properly. A cold running engine will run rich continually.
Although the Kjet cars aren't as powerful as the djet injected 450's it should still be a spirited performer on the road.
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