BenzWorld Senior Member
Date registered: Mar 2014
Vehicle: 1968 280se, 1972 280se 4.5, Land Rover disco II, Triumph Thruxton, Triumph Tiger. +boring Chevy Van
Location: Grass Valley california
Mentioned: 0 Post(s)
Quoted: 51 Post(s)
4.5 lumpy starting sometimes?
I just fitted the petronix1885 electronic ignition to my 4.5. it all went well and has been running great. Starting instantly and running smooth. Before I fitted the new unit I would experience intermittent rough idling and starting. This morning I tried to start her up and had a lot of trouble firing up. When it did, it ran extremely rough shaking from side to side? It felt like it was running on 6 cylinders? It also felt to me that it was fuel related maybe not getting enough? The fuel pump is working and is a new unit. Where should I start? I understand there are various valves etc in there but am not familiar with their job, location etc