W126

The M116 and M117 V8's survived production for over 20 years (1970 to 1991), so now these engines are all 30 to 50 years old.  The rear fuel delivery system is an important part of these engines and it is often neglected even by professional mechanics. Recently I have seen two cars that had their fuel pumps replaced professionally, but the old fuel hoses were not changed! Every single one of these old V8's I have seen in the past 5 years needs something done back there whether it be for safety, reliability, or performance. Once again, if you want it done right you need to do it yourself.