The "Hitchhiker's Guide" to the Maxi-Stream mod
- Thread starter dhnguyen
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Critter
Premium Member
Yes, one would be on the inside glued to the powerhead and one would be on the outside thus making the connection. As far as coated, didn't think it would have to be? Are the magnets in the power heads coated? To be honest I've never heard of magnets causing problems. Hmmm... I'll have to do a search or two to be sure.
Critter
Premium Member
here is a quote from the chemestry forum... from RHF.
"It is hard to say for sure since there are lots of different magnet compositions. Many are coated, but some may rust. I expect that nearly all are OK for occasional use, but I'd only leave a coated one in 24/7."
when asked if it could be coated with epoxy resin or laquer
"I'd use epoxy between those two. A silicone sealant would also work. "
So I guess I would look into coating them with epoxy resin (never used the stuff) so not sure what the extra $ would be if any. But its got to be better the shelling out the dough for a mag float.
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Randy Holmes-Farley
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"It is hard to say for sure since there are lots of different magnet compositions. Many are coated, but some may rust. I expect that nearly all are OK for occasional use, but I'd only leave a coated one in 24/7."
when asked if it could be coated with epoxy resin or laquer
"I'd use epoxy between those two. A silicone sealant would also work. "
So I guess I would look into coating them with epoxy resin (never used the stuff) so not sure what the extra $ would be if any. But its got to be better the shelling out the dough for a mag float.
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Randy Holmes-Farley
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melev
Well-known member
dhnguyen, quick question. One of my Maxijet impellars broke away from the magnet, and no longer spins. I used super glue gel to reattach it since it wasn't broken, but it didn't keep its connection. What would you suggest I use? I'm not doing a modification, just trying to keep the impellar working as it is.
Hmmm I have never seen a MJ impeller broken off from the magnet before. Any chance you could get a photo of this?
What MJ version is this on? The MJ900 and MJ1200 ones just basically snap in while the MJ400 and MJ600 have an inner tab that will spin it when the magnet spins.
Also have you tried epoxy glue? Once dried and cured epoxy is really tough (and a PITA to get off too)
D.
What MJ version is this on? The MJ900 and MJ1200 ones just basically snap in while the MJ400 and MJ600 have an inner tab that will spin it when the magnet spins.
Also have you tried epoxy glue? Once dried and cured epoxy is really tough (and a PITA to get off too)
D.
dhnguyen
Which parts on the propellor/magnet assembly are glued?
In one of your posts,you said you drilled out the impellors to slide over the 1/4" ridgid tubing.Is this the right diameter ridgid tubing?
I am going to use 2 props,but I will probably use a drill to make the holes in the 1 1/2" pipe.What size drill bit did you use?
The closest LFS and Home Depot is over an hour from my house,so I would like to get everything I need when I'm in town on Friday.
Which parts on the propellor/magnet assembly are glued?
In one of your posts,you said you drilled out the impellors to slide over the 1/4" ridgid tubing.Is this the right diameter ridgid tubing?
I am going to use 2 props,but I will probably use a drill to make the holes in the 1 1/2" pipe.What size drill bit did you use?
The closest LFS and Home Depot is over an hour from my house,so I would like to get everything I need when I'm in town on Friday.
This will be just estimates as I really have no idea what the exact sizes the drill bits I used are.
small bit for the carbon fiber rod - about 0.025mm or 0.1 inch diameter
medium bit for the propellers - 3/16 inch diameter or a slight tad larger.
large bit for the inlet holes - It says " 7/8 M/M" on the drill bit whatever that meant but I measured at about 0.75mm or a tad more than 1/4 inch diameter.
As for the drilling part, I drilled out the propellers (not impellers) to fit onto the rigid ariline tubing which is exactly 3/16 inch OD which has 1/8 inch ID. Just be careful doing this drilling very slowly and carefully so you don't damage the propellers.
small bit for the carbon fiber rod - about 0.025mm or 0.1 inch diameter
medium bit for the propellers - 3/16 inch diameter or a slight tad larger.
large bit for the inlet holes - It says " 7/8 M/M" on the drill bit whatever that meant but I measured at about 0.75mm or a tad more than 1/4 inch diameter.
As for the drilling part, I drilled out the propellers (not impellers) to fit onto the rigid ariline tubing which is exactly 3/16 inch OD which has 1/8 inch ID. Just be careful doing this drilling very slowly and carefully so you don't damage the propellers.
Worldwithin
Premium Member
Melev, that seems rather unusual as almost all the larger models the magnet actually extends into the plastic housing you show rather than glueing to it. Not having a MJ500 sitting around I am unsure if it is just because of the smaller impeller or not. I would imagine that you may just have to order a new one to avoid haveing to constantly glue it back together.
:fish1::hammer:
:fish1::hammer:
I see what happened. The inner plastic insert actually broke off.
What the heck did you do to that thing Marc? :lol:
Yeah anyway a 2 part epoxy will work. Let it dry and cure fully then take a 1/10" (or something close to matching the size of the hole) drill bit and bore it through the impeller to make sure you clear the hole of any glue. I had to do that to some of my earlier maxi-mods due to sloppy gluing :lol:
What the heck did you do to that thing Marc? :lol:
Yeah anyway a 2 part epoxy will work. Let it dry and cure fully then take a 1/10" (or something close to matching the size of the hole) drill bit and bore it through the impeller to make sure you clear the hole of any glue. I had to do that to some of my earlier maxi-mods due to sloppy gluing :lol:
AnnArborBuck
New member
I've had the same thing happen to two maxijet props with just normal use. frustrating to say the least.
Marc,
I have had that same thing happen before. I think time and the stress weakens the plastic.
Or it could be that you are trying to make it work harder than it wants to! One little MJ500 on a 280 reef. Poor thing just wants to die and be buried!! Put out of it's misery!
That's like putting it in the whole ocean and making it create waves to surf on!!!
I have had that same thing happen before. I think time and the stress weakens the plastic.
Or it could be that you are trying to make it work harder than it wants to! One little MJ500 on a 280 reef. Poor thing just wants to die and be buried!! Put out of it's misery!
That's like putting it in the whole ocean and making it create waves to surf on!!!
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