It’s rebuilt from autozone, I have my mind set on the hose on the back of the pump that routes behind the accessory bracket. I slid it on there when I put the pump on, instead of removing the accessory bracket so I’m thinking it might be slipping off in the back. This thing leaks within seconds of starting the truck so there’s a open hole somewhere

 

Recently replaced the water pump? Take a very close look at the gasket between the timing cover, and the block. Mine started leaking from there. It was cleverly concealed by various brackets, and the a/c compressor, I could only see it from under the truck. Coolant would run down the side of the timing cover, then down the lip between block, and oil pan, and then drip off toward the back somewhere. That one was fun to find.

 

just went outside to look at my current 318, video should give you a good idea of where that freeze plug I was talking about is.

 

Thanks for the video, all of my freeze plugs are bone dry. Next step is to take the fan off and shroud and start it up and check behind everything while it’s running

 

If it so happens to be the timing cover gasket, who sells a kit for this that’s good, I should just replace the timing chain while I’m in there also?

 

Fel Pro.

Yep, you are going to be there anyway, if you haven't replaced it already, no better time than the present. Good double roller chain/gear set please.

 

I may sound like a complete idiot but I was under the assumption that only oil would leak out of a timing chain cover?

 

That's where I got 6 bad alternators. The bypass hose is a major pain. I replaced my first one in the winter of '72. I had to replace it right away to get to work. A little trick I learned if you're not shy is KY Jelly. It's a water based glycerin. A little dab on the inside of the hose and it will slide right on. The coolant will dissolve it so it doesn't eat the rubber up. Clamp it down and you're good to go. It's also good for assembling suspension parts like bushings. Water on the metal, Jelly on the rubber part and a good hold as it will slip and fly if you're not careful.

 

From what you've said, I doubt it's your timing chain. Either your pump has failed or your hose is leaking. I love the A engines from the '64 273 to the first generation Magnums. That bypass hose has been the bane of my existence frequently though.

 

Coolant passes thru the timing cover in two places, both near the top. Notice the water pump is mounted to the front of the timing cover, and the radiator hose is back behind it, on the intake manifold.

That said, ol' grouch is correct. Check the bypass hose under the a/c compressor/bracket FIRST. They ARE known to be problematic, and if you didn't change it when you did the water pump, it is quite likely to be the problem.