Barracuda G3 issues...

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RASelkirk

Well-known member
Jul 11, 2015
141
Port Neches, TX
I've had two G3 cleaners over the years, running on a dedicated inlet port, and had zero problems with them other than replacing diaphragms. Now I find that it works only if I completely close off all other suction sources, which pulls the pump down to cavitation. I removed the G3, wedged open the port, and determined it's lines are free and not plugged. Completely stripped the G3, replaced the diaphragm and it's still not operating. I do see that if I screw the diaphragm "holder" tight to it's stop, it pinches down opening to a mere slit. Seems it used to be about 1/8". I tried not tightening so it's got a decent gap, and it still refuses to work normally. May try shimming it to see what happens, but I'll prolly order a new one. Would like opinions on why this one just up and quit.

Russ
 
Thanks. Today I spent a little more time and have realized it's old and tired, prolly just needs replacing. I removed all hose sections and inspected them (note: when lifting it out by sections the hose seemed to retain water and not drain as expected, as if the G3 was plugged up). Stuck the G3 straight into the suction side port and when I opened the valve to the port, it went crazy! It was pumping so violently the entire (underground) line was rattling. Replaced the diaphragm again, even though the latest one was new, this time paying attention to the gap in the opening. Seems when I tighten the diaphragm holder, the gap narrows to nothing. I finagled the assembly to where it was gapped about 3/16", put it in the pool, and it worked - at least until I walked away. Now I'm thinking the internal threaded pieces are worn out...

Oh, and if I shut off all other suction sources and run only the G3, it pulls the suction down to 4#. It thumps and moves, but I don't want to chance damaging my pump. When I partially open another port, the G3 goes into "afib". Instead of the normal deep thumps, it does really quick, short rattles and does not move.

Russ

PS- On second thought, perhaps a hose section (underwater) has enough of a leak to not allow for full suction at the G3? Will try replacing all hose sections tomorrow, I've got plenty!
 
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Well, inconclusive results. Stuck the new foot on, adjusted the valving, and away she went just like old times. Went out a couple hours later and it was sitting there in A-fib again. I think it's one of those things that work while you stand there and watch it, then quit the minute you walk away. There's got to be something internal that's got just enough wear to stall it. Can't wait til tomorrow to see what it does from a dead start. :(

Russ
 
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I’ll assume you’ve watched this -


Looks like there’s a couple of internal components that can be replaced for a rebuild.
 
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I have not seen that, thanks. At the 6:00 mark he says something about a compression ring, but even with my sound turned to 100%, I could not understand him. Sound quality is very poor!

OTOH, I've got it trucking around just fine for now. I guess with worn internal parts, valve (suction) adjustment becomes more critical...

Russ
 
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RASelkirk said:
I have not seen that, thanks. At the 6:00 mark he says something about a compression ring, but even with my sound turned to 100%, I could not understand him. Sound quality is very poor!

OTOH, I've got it trucking around just fine for now. I guess with worn internal parts, valve (suction) adjustment becomes more critical...

Russ
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Yeah. It sounds like the internal compression ring can become worn out and that it can be replaced. You ought just look online for G3 rebuild kits and see what’s offered for rebuild parts.
 
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Something else if your 'cuda is having trouble tracking.

I bought some E-Bay replacement hose and have since found that this hose is more buoyant than the factory hose. By chance, after replacing sections as needed, I finally got to a point where the nose rode high enough to prevent it from moving. Just takes a couple more weights to tune it. It was a head-scratcher for awhile though...

Russ
 
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