Trying to figure out how the "valley heater hose" connects to the back of the water pump

Kevin Kurtz

Member
Jan 23, 2020
16
1
13
Arizona
Hi Folks,
I'm rebuilding a 4.6L DOHC engine for an 03 Maraduer. I'm re-assembling after the engine dressings now...
the metal tube (heater hose) that runs through the valley and connects to the back of the water pump is puzzling me.
Specifically, I am wondering if there should be o-ring(s) on the nipple that protrudes from the back of the water pump into the valley.
I just don't recall from the disassembly if there were o-ring(s) there or not. I cannot find any schematics or other info online or in my 4.6Ldohc shop manual that would help me.

Anyone know?
I've included a photo of the nipple protruding into the valley. The metal tube is also shown. nipple.jpg
 
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I feel like there should be 2 orange o rings of the nipple protruding from the block and the metal pipe fits over it. Been a long time. See of your local Ford dealer has a replacement nipple, I believe they came with it.