Ok, just put a new crank in my 720d. The tractor has been apart, with oil drained, for a year. I finally got it back together. Followed the JD service book. Lots of assembly lube on the rod and main bearing journals. Today I'm cranking it over with the pony engine for the first time. Have the diesel throttle all the way back, just cranking it over with the pony until I see oil pressure. But the gauge barely goes up. It's down in low.
I stopped and checked the oil level, it was now low, I guess from filling the crank, and timing cover, and all the other passages. So I filled it back to full. Still reading very low on the gauge. It's a new gauge. Also, I had replaced the gaskets in the oil pump while it was apart, trying to stop a leak.
I'm going to try my old gauge, just to trouble shoot the new one. But how long do I crank before oil should be fully circulated and I show pressure?
I stopped and checked the oil level, it was now low, I guess from filling the crank, and timing cover, and all the other passages. So I filled it back to full. Still reading very low on the gauge. It's a new gauge. Also, I had replaced the gaskets in the oil pump while it was apart, trying to stop a leak.
I'm going to try my old gauge, just to trouble shoot the new one. But how long do I crank before oil should be fully circulated and I show pressure?