HI Bob here. New to this forum but been around. I am an old semi retired mech and auto elec. 40+ yrs of experience.
Recently replaced the RH head gasket on my old D22. 500,000km on the clock and first major repair ever. Old girl has been converted to dedicated gas 20 odd yrs ago. Was still running fine but dumping water like no tomorrow. Finally had to go in and work on my own and shops ride.
Rebuild went like a dream. Nice and clean inside being gas. Head dead flat and only required minimal work on the all valves to get them to blue.
After rebuild old girl was very reluctant to start. With some major coaching finally fired up. Ran a bit rough as was to be expected for a while but did not clean up. On further examination I discovered an amazing problem. She was only running on the 3 cylinders of the LH bank.
Have checked ignition. Great spark @ all RH plugs. Timing spot on. Valve timing on mark.(rechecked 3 times.} Compression good. Plugs wired correctly in sequence. System water tight to 20 pd.
So in essence. Good spark. Good compression. Timed correctly. Ignition and valve train, Good fuel supply. Runs a single point gas carbie. NO gas No go anywhere, NO POWER OR COMBUSTION ALL RH CYLINDERS. RH exhaust stone cold after a few minutes running, No variation to eng speed when plug leads disconnected either singularly or all together. noticeable power drop whenever any LH plugs dropped out. Various new plugs.
Now I normally get all the headaches to fix from the young guys around here so to have this occur on my own ride is literally doing my head in. Anyone else ever struck this type of problem or got any plausible ideas to remedy this one. HELP ???? ## ***