Date registered: Jun 2004
Mentioned: 1 Post(s)
Quoted: 17 Post(s)
Basics first,DO NOT USE THE ACELERATOR WHEN CRANKING ANY MERCEDES
It will flood.
The feed pump for the MFI must be running as soon as you turn on the igniton,do that first,then sticxk your ear under the car by the drivers side rear wheel,you should hear the puimp humming.If not,check the fuse .replace itand if it blows again you have a stuck feed pump.They are simple enough to repair,but easier if the pump is off the the car.replace the rubber lines if you do pull it off.Use modern EFI hose ,it's available at any parts and accessory place.
OK,so the pump is working...have you got spark?,get a extra plug,pull a lead and plug the plug ( :-) ) into that and lay it on the head so it has a good ground.crank the engine and see it if sparks.
No spark? check the points gap. No gap- no spark - no run.
Points gap OK? .change the condensor and check the coil leads are tight on the coil.
Still no go? ,check the rotor arm is in good conditon with NO cracks .
Are the plug and coil leads nice and clean and good tight fit into the coil and dissy cap? .
OK so you have spark,you have fuel...pull a plug from the engine and check that the plug has fuel on it,or at least smells of fuel..to check the MFI is working.
Still not running?
with cap off the distributor,turn the engine over and see if the rotor is turning..if not,the timing chain has broken.,and yes it does happen on these engines.