Engine bay cleaning

I'm in the process of stripping the engine to service and clean it.

The engine bay needs a good clean as well as there is dirt and grime everywhere.

Looking for advice as what to use, I have a handheld steam cleaner and pressure washer. I won't be blasting water into anywhere it shouldn't be!

Thanks 

I did mine with plenty of de-greaser - you can but a 5l bottle of water soluble stuff from Screwfix for not a lot. Stick it in a spray bottle and spray away. And old paint brush is good to agitate it. Blast it off with the steam cleaner and it should come up a treat.

Thanks Paceman, I'll give that a go 👍