Whats with that factory restriction in the keene power jet hose?

Ragnor

Ragnor

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Dec 7, 2015
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What's with that factory restriction in the keene power jet hose?

I started playing in my test hole with the keen factory powerjet hose and nozzle. I managed to jam it in the first minute. Took me 10 minutes to figure out why I lost suction (lesson 1). When i did take it apart it was jammed out of site up at that restricted area just before the jet.
Why is that restriction there? My first instinct is to bust out the cut off tool and fix that sucker. Of course I assume it must be there for a reason, but why?


Not that I plan to use it anyway. I hooked up my HF250 and that thing is a BEAST! No jams, strait tube and I can suck gravel right off the tarp and it has twice the suction of the factory nozzle. Sure the double hoses are heavy and take some effort to move, but brute forcing things has never been my problem, it's the delicate things I have trouble with.
 

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never heard of any thing restricted probably not supposed to be there.
close to a 2 1/2 inch round rock should go straight through the hose to the box with no problem.
its usually the long flat rocks that get hung up.
sometimes on the tip of the nozzle people will put like a bolt through or screen
when working in muddy areas where they cant see what their sucking up.
shouldn't be any restrictions near the powerjet, your problem could be something leftover from the previous owner.
 

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Can you post of pic of what you are talking about? I've never heard of a restriction in a suction hose.
 

OK I did some looking and took some pics, it appears the end is rounded to fit to the seal in the power jet. But it's a very poor design imho. Is this actually a keene set up? Because I would think there is a better way to do it.

It's at least a 3/4" reduction with a sharp lip. If that wont hang a rock i don't know what would. Seams a pretty obvious design flaw.

DSCN0792.JPGDSCN0793.JPG
DSCN0794.JPGDSCN0795.JPG
DSCN0796.JPG
 

OMG! That is completely backwards! That metal tip with the rounded-in "restriction" is the SUCTION NOZZLE! It's there to prevent rock large enough to easily jamb in the hose. The other end goes into the powerjet. It's an oversized jet so that the suction hose goes into it, and it goes into the jet. That gives a straight shot through for cobbles without a restriction.
 

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View attachment 1294647

This is how the setup should look. The tip you are using is a suction tip, not a power jet connector. I can't tell what that extra looking tip is that appears to be shoved into the nozzle.
 

Jason in Enid said:
OMG! That is completely backwards! That metal tip with the rounded-in "restriction" is the SUCTION NOZZLE! It's there to prevent rock large enough to easily jamb in the hose. The other end goes into the powerjet. It's an oversized jet so that the suction hose goes into it, and it goes into the jet. That gives a straight shot through for cobbles without a restriction.
Click to expand...

Well, here is the other end of the hose, I didn't do it, lol
DSCN0799.JPGDSCN0798.JPG
 

The more I look at your pic, the more it doesn't look right. What is the inside diameter of your suction hose, and what is the inside diameter of your jet log (at the dredge end, not the over-size end)?
 

Hmmmm, that's gonna take some thinking to fix..... or some money, or both.
 

Maybe you should start by downloading the owners manual from the keene website. It will show how the dredge is supposed to be assembled (correctly).
 

Hose ID cannot be measured but is same size OD as my known 2.5" . Jet log is 2 5/8" at exit. Dredge hose end at restriction is 1 7/8"
 

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someone put a straight tip nozzle into the quick coupler, it shouldn't be there.
it fits inside the jet because its on the inside of the hose.
the coupler is glued on to the outside of the hose,
maybe the extra piece isn't glued hit it see if it moves
or boil some water to stick it in for a minute or so and see if you can pull it out
 

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winners58 said:
someone put a straight tip nozzle into the quick coupler, it shouldn't be there.
it fits inside the jet because its on the inside of the hose.
the coupler is glued on to the outside of the hose,
maybe the extra piece isn't glued hit it see if it moves
or boil some water to stick it in for a minute or so and see if you can pull it out
Click to expand...

Oh, that explains it. His hand was covering the fact that one was inside the other. Whoever he bought this from must have been an idiot to put it together like that.

Worst case scenario, you will have to cut off the tip and soak it in something to dissolve the glue, then use some silicone sealant to glue it (the quick fit only) back on the end. You'll only lose a few inches.
 

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Oh, I get it! Thank you guys for taking a look at it. So much for not learning anything in my dredging pool. :tongue3:
 

OMG what a cluster :censored: buggered bad-bummer. Wish ya lived closer as to fix and check it all is imperative. Your pit is imperative as looks like more will reveal itself...lots a luck-John-
 

yeah the coupler side should be over the outside of the hose so it has no inner restrictions. someone probably got the coupler jet tube as a replacement part but didn't get the hose couple fitting it needed
 

now we know why the first owner sold it, damn thing plugged up all the time. I can see the ad now....... dredge for sale like new hardly used.

bill/cr
 

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