Delta 470 Single Handle Kitchen Faucet with Extendable Wand--Disassembly and Access to Body O-rings

[allthumbsmega]

The spring-loaded gaskets on my Delta 470 of about 2014 vintage (the accompanying brochure is dated 2006, but that seems too long ago) wore out and water began to drip and then flow out the wand. You will see (I hope) pictures below. While I had the _____________ thing apart, I thought, "well hell, I might as well replace the O-rings on the body, while I'm in here." The body O-rings on the parts list that came with the faucet list number RP32520 (there is a 2010 thread on this site about this issue that reveals the ease with which the wrong part number parts can be bought at local retailers). The illustration that came with my 470 shows two O-rings on the body.

Now for the fun part: a youtube video shows the extendable hose sliding easily down the angled extension that supports the wand and into the hub itself. The curse arises. On my 470, the hose will not slide down into the hub itself. A portion of the brass body that distributes water to the mixing mechanisms blocks about an eighth of an inch of the top of the extension, where it meets the hub. The fitting on the wand-end of the hose will not clear that bend and jams up against the top interior of the extension. I now have the 470 completely disconnected from all water sources and the under-the- sink plate removed that fixes the 470 tightly to the deck. Unfortunately, the large nut-like ends of the copper tubing for attachment to a water system will not make it through the hole in the deck, as long as the hose is there.

Ah, I just thought of a way I might get the hose out of the way, but one screw on the zinc weight won't cooperate. I applied WD 40 and will try again tomorrow to get it off the hose so that I can pull it out the top of the assembly and then clear the nuts through the mounting hole in the deck.

This still leaves the problem of getting the upper end of the hose back through the extension and into the hub, so that I can remove the chrome hub from the water body and mixer that is a machined brass-like cylinder that fills the hub. The truly bizarre aspect of this, other than Delta's crummy design or build quality, is that I installed that 470 and had no trouble getting the hose through the brass-like body and out the extension.

Help!!

 

[Breplum]

Hey N. Californian, good luck. You know how it went in, and so know it will come out. BTW, WD 40 is strictly a water displacement lubricant...but frankly, NONE of the so called penetrating products do anything at all.

 

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[allthumbsmega]

Hey N. Californian, good luck. You know how it went in, and so know it will come out. BTW, WD 40 is strictly a water displacement lubricant...but frankly, NONE of the so called penetrating products do anything at all.

Hi Breplum,

The WD40 did provide enough lubricant to the threads of the screw and the zinc block to permit me to extract that screw. I was then able to pull the hose up far enough to clear the hole in the deck. After I got the hose out of the way (the problem was that the two copper tubes carrying the hot and cold water and the hose, taken altogether, blocked the hole, so that I could not get the faucet assembly loose from the deck and the sink; the copper tubes had large nut-like connectors on the ends).

After that, the top end of the hose still would not drop through the extension and hub. So, I pulled it through the other way, and the connector on the bottom end of the hose was small enough to clear the bend where the hub meets the extension where the wand sits.. I would still like to catch the Delta engineer that designed that hub with such small tolerances. The brass mixing body was clearly blocking the hole.

Really looking forward to burrowing into that small space under the sink to put everything back together. It was hell during initial installation, and I imagine it will offer the same fun this time. Waiting for parts from Delta, who thinks that the lack of a kitchen sink is not important enough to use overnight shipping.