New oil pump priming

[burbguy82]

I am looking to replace my oil pump and screen on my 1986 k30, 6.2 Diesel. Possibly going to replace my pump with a later model increased flow pump from Melling. Purpose is to increase flow, and ensure that the nearly 40 year old pump, seal and screen is 100% Question is: is it necessary to prime and oil pump when installed a new one or will the pump self prime? Not a new engine, just pump replacement. My knowledge of pumps says no, interested in opinions or other facts that I may not know. The proper priming tool is fairly expensive, maybe I can make my own, not sure. I do plan to disconnect the fuel so the engine does not start when replacement is complete. Thanks

https://www.rockauto.com/en/moreinfo.php?pk=12804189&cc=1053302&pt=5564&jsn=20524

 

[shortyb]

Better safe than sorry with regard to priming a new pump. Hate for it to be filled manually, only to cavitate when turned over. What does the priming tool look like for the diesel?

 

[Cujet]

Great subject it is always a good idea to prime an engine oil pump. Not because they won't self prime, they nearly always do. But just in case they don't. Risks your bearings.

Of course, pouring some oil in prior to installation will help it seal and work instantly.

But for new engines or critical applications, the easiest way I've ever found to ensure success is to use an outboard lower unit/transmission gear oil hand pump. Put a 1/4 inch hose fitting where the oil pressure sensor is, and pump a quart of oil in the oil galley.

Simple, produces 50psi and works every time.

 

[D60]

When you put new pumps in Tritons you're supposed to prime them. That's all I know.