Questions, Interjections and Observations. Firstly, the idea of starting an engine in the can (groundhopping) is always a resounding "Yes". I have a question about this though. Has anyone ever seen a 6.2/6.5 mounted in the can with a starter on it? I'm questioning if the starter will clear the mount assy. If it does clear than no problem. I'll know for sure when my canned motors start arriving. I'm no stranger to groundhopping. Mangus has the video of me groundhopping the LDT for my wrecker. If all you want to do is make surre it runs and has oil pressure, I'd not be overly concerned with coolant. It takes a while before these things even get warm. Once the cylinder head gets warm to the touch, it's time to think about killing it. As others have said, DO fill with oil and prime system, DO plug oil cooler bosses, DO run an oil pressure gauge. I'd not be too concerned with the GP system, just give it w whiff of starting fluid (if required) to get her lit. Assuming these are HMMWV engines (most canned ones are) the injection pump requires 24V for operation. This can be changed if your buyer is going to use in a 12V application. Sounds like JAsher has plenty of experience on the dyno with these engines, tap his experience. Here is another free observation though. The dyno room is a clean controlled environment, kinda like the operating room. We (I) work in my yard so I'm not nearly s high tech but am able to at least determine the engine's ability to run and establish oil pressure.
