Plastic block connection

[firefighter_2000]

This connection that goes from the top of the passenger side of the block and goes to the heater core is leaking… Again. I’ve replaced it twice. I’ve cleaned the o-rings & the surface. Still leaking. Has anyone sourced a 90 degree elbow to fix this permanently or maybe a adequate length hose with a 90 in it?
Anyone know the thread size going into the block?
Any ideas are appreciated.
Craig

 

[Signal73]

“china”.... here’s your sign!

 

[Signal73]

Instead of replacing it with another failure prone part I’d walk through the plumbing and fitting isle of your favorite home improvement store and piece together a riser, 90 degree elbow and brass barb fitting that will last the life of your truck.

 

[firefighter_2000]

Exactly.

 

[firefighter_2000]

Instead of replacing it with another failure prone part I’d walk through the plumbing and fitting isle of your favorite home improvement store and piece together a riser, 90 degree elbow and brass barb fitting that will last the life of your truck.

that’s what I was hoping to do. Any idea what size pipe fitting it is that goes into the block?

 

[Signal73]

I’d hazard a guess of 1/2” NPT?

 

[Topzide]

From the photo it might be 3/8" NPT. 1/2" NPT would be close to 3/4" OD. I'd pull and match or at least measure it to be sure. Nothing worse than several trips back and forth to the store.

 

[Cummins12V98]

“china”.... here’s your sign!

NO SH!TE !!!

 

[crazy jerry]

I’ve replaced it twice.

is that elbow some aftermarket junk from amazon ?

 

[firefighter_2000]

is that elbow some aftermarket junk from amazon ?

Nope. Straight from the local dealer. The first one I had was from Oreilleys and it failed the same way. When I replaced it this time, I could find zero difference in this one & the Oreilleys one.

 

[jetmechabq]

the clamp looks too far back and could not be sealing?

 

[firefighter_2000]

the clamp looks too far back and could not be sealing?

It’s not. It’s coming up from the connection between the metal outlet & the plastic connector.

 

[Ozymandias]

They are only tight if they are free of tension and straight.
If the hose pulls sideways, no luck.
My experience.

 

[Ozymandias]

The connection piece of a third Gen (5.9) has a hose Barb on the top end so you can attach a hose with a rubber elbow.

 

[tlevan03]

If i recall, those fittings are metric pipe thread. At least they were on my 3rd gen. Id have to look when I get home to get the size.