Date registered: Jul 2012
Vehicle: 1976 450SL, 1945 Willy's CJ2A, 2007 Dodge Nitro
Location: Mount Shasta, CA
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Hello from the desert of CA
Hello, I recently was given a 76' 450SL by my father-in-law. He told me if I could make it run I could have it. It had been sitting in his driveway for about 4 years. He was the second owner and purchased it in 96' from a dealer in Huntington Beach. When I got it he had painted it black and it was chipping and had some surface rust. It also wouldn't start. Since receiving it I got it running by cleaning out the fuel lines and fuel screens, changing the pump, changing the fuel filter, and cleaning up the spark plugs and battery. I also recently took apart the warm-up regulator and cleaned it out really well. I've done a vacuum test and I'm getting about 10lbs of pressure. My gauge says it's too low but it seems fine. I can't find any leaks. All of the smog equipment has been removed or bypassed (wish it wasn't, but can't afford to fix all of that). Once I got it running I painted it viper blue and polished up all the chrome. So far I've only spent about $600 ($400 on paint) and now have a beautiful head-turning 450SL. The only remaining issue is getting it to start can be a hassle sometimes.
My current dilemma is getting it to start at all right now. It seems to have quit on me. I'm thinking it may be the coil or distributor cap and rotor. I seem to get a nice blue spark from the coil wire when I hold it about 1/4" from a ground source, but the plugs are giving me a weak orange spark. I'm getting about 150 lbs of compression from each cylinder so I know the compression is good. And I did a fuel volume test and I'm getting about a quart in 15 seconds.