Working some engine refresh work on the engine stand. I have always hated this hose. It's hard to change or check, the nipple for it is toast and formed hoses aren't really sized right so I've always had to crank down bigtime on the hose clamp to get it sealed. And in the past I've run a big oil filter (5.0 FL-1A) and this hose rubs against it.

This is a 20R head & intake. Some (earlier?) 20R models have similar connection, but it's at the top of the manifold, perhaps related to the non-electric choke (?). Has anyone ever deleted it, and lived to tell the story? It seems like it just circulates coolant through the belly of the intake manifold.

 

Here's a pic of what's left of the barb.

 

look into a different year model intake manifold set up. There is a difference between the 79-83 models. Ask offenhouser they will know for sure..

 

I tried to bypass that and did not work. I was in the same boat as you with a mangled end like that. It might be possible but i kept overheating like the system couldnt burp the air in the coolant. Maybe someone else could chime in

 

Hey, if you tried it I'll call you an expert, glad you chimed in. Sounds like I need to solve the problem while keeping the flow.

I have another barb in pretty good shape pulled from a 20R manifold that had the connection on top. But the threads are much bigger, it should fit in place of the mangled barb AND the adapter bung screws into. I can't seem to remove the adapter bung. The first picture shows chew marks on it where I got on it with a pipe wrench and 3' breaker bar. I guess I need to pull the underbelly off and check how it's actually attached.

 

you could always try to build it back up brass or silver solder and die grind barbs back on it

 

You could always go9 down to any hardware store and find a barb of the same thread and pitch as that one.......

just sayin.

 

It has metric threads. Very close to 3/8" pipe threads but the barbs I have from home depot start binding up after the first turn. The plug shown in the first pic is metric, from another toyota application. I'm headed to the stealer, hopefully can still just buy the barb.

I went ahead and pulled the whole belly cover it screws into, to see how to remove the adapter bung. It appears to be pressed in.

 

I have a complete 20r intake that I've been trying to sell locally. Its in good shape. I'll mail it to you for the cost of shipping/ packaging if you need it. Just send me a PM.

 

Any GOOD hose shop will have metric threads.