I am restoring a CB 750 k-1, Original motor has 14,000 miles and a cracked case. When I purchased the motor (not running, basket case) I did not know about the cracked case. Someone had lost a chain and used fiber glass to stop the resulting leak. Anyways, I tore it down, new rings and valves and gaskets. Left old bearings, as they were all well with-in specs. When fired it up for a few seconds, started right up. But I don't seem to have oil pressure. I pulled filter housing, and no oil in there. Dropped oil pump and had oil there. replaced oil pump with another I had, and now oil pumps out of oil filter passage when cranked with no plugs. Put it all back to gether and still no pressure. I pulled the plug out of the oil gallery, and can feel oil there, but now pressure when cranked. Question, shouldn't i be able to crank up enough oil pressure with just the starter motor, no plugs, or do I need to start it up to get enough pressure? Seems to me I should be blowing my finger out of the gallery hole with just the starter.
Also I am doing these checks with out the oil filter in, just the housing. Don't thing that should make a difference but thought I'd throw it in.
