I am flushing out my cooling system. I used the radiator flush (Blue Devil).
I am having a hard time locating my engine block drain. Does anyone know where it is?

I have a 2.5L 4cyl manual 1985 Jeep Cherokee with A/C.

 

Pull the lower hose at the radiator.

 

Like Firestorm says, nobody ever wants to mess with the block drain. (usually stuck and tough to reach). Likewise the radiator drain the book may suggest to use, don't bother. That little thing is a joke, and may end up clogged so you can't close it.

U want flow and flush, undo to lower rad hose

On that 2.5 you may access it from underneath.

 

Thanks, yeah I did that before when I initially drained the cooling system and also again when I drained the distilled water on the first step of the flush.
The problem was that when I replaced the water pump recently, even with the lower radiator hose off, there was still solution left in the system. I didn't want to leave this special radiator flush solution in the system, so I was hoping to get to the engine block.
Maybe its okay to leave some of that in there, and just drain via the radiator drain plug and the lower radiator hose, and just fill back up with coolant..

 

Just stick the hose back, fill her up from a hose and drain again to get the last of it.

 

Even with a "block drain" or even pulling the lower hose, some coolant always remains in the block.

You'll find out when you pull an engine.

Fill, run, and drain a couple of times and you'll be OK.

 

That is what my plan is when I flush this spring. I have always drained via the radiator drainplug first, then remove the lower hose from the engine block. The amount left in the block will be moot.

You could always jack up your rear end a couple inches and get some more to drain out that way.

 

This is why you use straight anti-freeze when done with all that. An XJ holds 3 gallons. After the drain, the couple water flushes, and the final drain there is always a little water in there. Pour in a 1 and 1/2 gallons of straight anti-freeze. Top it off with water. I usually fight with it for a week to get all the air burped out and to proper levels. Run it, let it cool down, fill with more water, and do it again. Then when you own a '00 like me keep a close eye on the level.