Koralia wavemaker no reverse mod

[wee_heavy]

My Koralias were occasionally starting up in reverse using my AC Jr. as a wave maker. So, here's some pics pics of how I'm using weed eater string to keep my Koralia 4s from reversing on startup, enjoy The power heads will make a little noise from time to time when they correct themselves but it's something I can live with.

where to drill the holes for the weed eater string

pics of string in the hole for reference

string through both holes. Notice offset of string, this is so it won't interfere with the shaft.

 

[wee_heavy]

melt one end of the string

use back of lighter to form the melted end of the string so it won't pull through.

repeat on other side

and finished! Install and never worry about them staring up in revers again.

 

[customcolor]

cool you made a soft stop for the prop

 

[greenmonkey51]

Any chance we can get some pics of it completely put together. I'm just not getting the total picture. Is there any strain put on the motor going on and off.

 

[Esquare]

Is your Koralia normaly loud (hum) and does this effect the normal noise? I have 2 K 3's and really like them but they are driving me crazy with the constant hum.

Also interestd in the lond term results of your mod as I was thinking of using my AC 3 to wave these 2 but can't get past the darn hum.

Thanks for sharing.

 

[Eklikewhoa]

I would be interested in some fully assembled pics and long term results!

 

[wee_heavy]

I'll snap some fully assembled pics for you guys in the AM, when my lights come on. Can't really comment on the hum, I can't really notice anything.

 

[agreeive?fish]

I dont know anything about any hum on my #4 ..i have never heard any noise what so ever comming from mine.

disclaimer...i have 3 kids running around the house and they make more than enough noise to drownd out the sounds of
the spcae suttle taking off from my couch

 

[Esquare]

HAHA, I know what you mean agreeive. I guess that I must just have a couple of bad ones. I'm probably going to take them apart to see what I can see.

 

[agreeive?fish]

Esquare...the kids or the pumps...lol

 

[Esquare]

HAHAHA, the boys aren't bad but I would like to take them apart from time to time. I blame it on my mother. She laid a curse on me when I was little, "you'll get yours".

 

[hebygb]

FYI, I find that giving your koralia a soak in vinnegar ever few months really keeps them performing in top notch fashion, and quietly.

 

[Esquare]

Thanks for the tip hebygb. Unfortunately mine are brand new.

 

[kcress]

Why does some weed whacker sting prevent a motor from turning backwards?

 

[Gtstricky]

<a href=showthread.php?s=&postid=12276057#post12276057 target=_blank>Originally posted</a> by kcress
Why does some weed whacker sting prevent a motor from turning backwards?

That was a good question. How does this work?

 

[ErikS]

<a href=showthread.php?s=&postid=12430079#post12430079 target=_blank>Originally posted</a> by Gtstricky
That was a good question. How does this work?

It doesn't really - it does prevent it from running backwards. Starts in reverse -> prop hits stop -> prop stops/bounces -> spins in the correct direction.

The soft stop prevents chattering associated with hard stops.

 

[Gtstricky]

So is the idea that when it is working in the correct direction the water flow pushes the cord up out of the blade but in reverse it gets pulled into and caught by the blade. I am just trying to picture how the cord stays out of the way when it is working correctly.

 

[121a]

i think he is talking about the prop bouncing out of the magnet motor hitting the guard, then it is forced to turn into the right direction starting the pump correctly, it is not in the way as the prop just bounces and hits it, then goes back away from the line. I could be completely wrong too.

cool mod though!