BenzWorld Junior Member
Date registered: Oct 2003
Vehicle: Mercedes C230K
Location: Northern VA
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Quoted: 0 Post(s)
Mercedes 1972 280SE 4.5 wont start!
Ok, so I think this may or may not be the second time I have posted on this forum, non the less, I have purchased my second W108 body, this time I decided to be a bit adventurous and buy one that was sitting and did not run. The first thing I did was check for spark/ignition [check]. Went on to replace the spark plugs, changed out some misc vacuum hoses for the hell of it, then drained the fuel tank. The fuel tank screen has been cleaned, new battery installed, all fuses checked, car would crank and turn over but not start. A little observing and i realized that my fuel pump was not engaging, I was getting voltage to the pump, but no action. Worried that I needed a new fuel pump, I removed it from the car and disassembled, turns out it was just jammed from sitting, works like a charm now.
I have put a new fuel filter on, and changed out the fuel hoses. A friend of mine and I just spent the better of an hour trying to get it to start, spraying carb cleaner into the manifold [only thing I had laying around], engine catches but does not run. I pulled one of the new fuel hoses off the rail and I am definitely getting fuel up from the tank [albeit it may be some old gas from the lines as it is fairly brownish in color]. I guess my question is...is the car running its course and purging out the old gas with the new [5 gallons of fresh gas was put in of reg, not premium] or clogged injectors?
Another question which is unrelated is should all fuel hoses after the fuel pump be fuel injector hoses? I accidentally purchased reg fuel line hoses for the fuel rail, and the better majority of the hoses on the rail excluding the fuel injectors have been replaced with reg fuel line hoses.
I have trolled and trolled and trolled the forum, but am at a whits end, am I missing something? My next step tomorrow is to purchase an actual started fluid can and try it out, if still no go, I am tempted to pull the injectors for cleaning...
Any advise, criticism or pointers are greatly appreciated! Pics of the car are attached.
Last edited by Lewda; 06-27-2012 at 08:59 PM.