Scubaru Steve

so i was searching for jet units... i came across a 28mm, and then i was wondering will it fit? how much modification you think it will need?

[link]http://www.jet-drive.de/index.php?option=com_virtuemart&page=shop.browse&category_id=4&Itemid=17&lang=en[/link]

they also have sprint boats and up to 40mm drives...

BIG22BIRD

My Feedback: (1)

Steve................... make it fit.
i run a graupner 28mm jet in my nqd. it is awesome. you just need the right powerplant.

Scubaru Steve

any pics of the build? im tempted, or buy one of these kits...

seehuusen

hey Steve, if you click the gallery link above, you should see all images in this thread.
There should be a bunch detailing what needs to be done

biznitch

Wondering how the impeller is held on the shaft?   Do they come loose?  How to re-attach?
                               Thnx.

seehuusen

there are groves on the shaft, which you squeeze the prop over. Sits pretty tight on the original shaft.
If you want to go custom, say stainless because you run it in salt water... You can just epoxi it on

biznitch

Thanks for your help. I have bought some spare ones and I couldn't figure out how they went on the shaft.

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damfurst

On page 119 I show a picture of the bearing and where it goes on the front of drive behind the motor coupler. It replaces the rubber seal that is there. The bearing is 10mmX3mmX4mm. I would post the picture here but can't find it on my computer right now.

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Found my answers by email.

duckdogs14

Having to part with my boats if anyone is interested... Search listing number 890028 in the buy & sell page. I amNOT interested in breaking it up.

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? for the knowledgeable boaters. When putting the jet body in, should the grate area be first gooped in or should the shute area be put in. I can't walk and chew gum. Hope you follow me on this as goop sets up fairly fast and with 2 areas that need the goop, doing equal justice to both comes into play. Thanks!

sundogz

Install the large piece (jet body) first, by putting goop around the rim of the intake and around the outlet (in other words, everywhere it contacts the hull). When it set up, install the stator housing/steering nozzle using silicon caulking or something you can peel off easily if you need to remove it.

Wheelnut

My Feedback: (81)

Good advice, thanks

seehuusen

doing a rebuild of my original jetboat, as well as building a new one! I ended up buying two remote controls, as I want someone to race against when out... But the usual thing is, that your mates just don't have a jet boat... so I thought, why the heck not build another one?

I've ordered a couple more of the 2200mah Nano tech batteries, they are great for this application I reckon My idea is to run 2 batteries in each boat, as 3S2P, having one battery on each side.
I'll try to run one of these ESCs in each boat, http://www.hobbyking.com/hobbyking/s...dProduct=17441
They've also been ordered Reason I am trying these is simple, it's the same internals as in my 180amp ESC, which I really like!!

In the new boat, i'm going to re-use some, of not most of the original r/c boxes and mounts. I've managed to modify the servo a bit, and with a few modifications of the mount, it fits perfectly... The Radio box might have the Rx in it, I'm not sure yet, it's pretty bulky... Other than that, I've finished the sleeve mod on the new jet drive, it came up pretty good.

I did think of putting the bigger Graupner drive into one of my boats, but that'd hardly make it fair when racing, so the idea got put on the shelf (I'm certainly going to do that one day )

Edit: Added some photos for you

seehuusen

ahhhh $h.... I used shoe glue on the boat, thinking it was the ducks nuts... ehm, no! Two hulls are sitting in the living room melting away... I pray that the plastic will harden up...

sundogz

Oh crap! Both hulls? Sounds like it was some powerful stuff. Maybe it will set up. Yeah, goop would have been the way to go if you could have located some. Or silicone caulking. I used 2 part 'plastic' epoxy on my last build, since I don't plan to remove it again.

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Acetate, check for this in other products, bad stuff!

seehuusen

Acetate hey? Thanks Mike, I'll keep a sharp eye on that in the future!!

So, over night, the plastic hardened... GREAT! It's a bit "wonky" where it melted, one hull (of course the old one...) isn't too badly affected on the bottom... The other boat has a raised section, pics to come later, it will explain what I'm on about [&:]
I started planning out the old hull, where to put the new ESC and how to mount the servo again. Test with placing the battery in different spots, showed that the battery (2.2ah 3S Nanotec) did the best, being placed right in front of the motor, so it will go back there...
I found out that the Turnigy Marine ESC had slightly larger bullet connectors than the motors *sigh* so I'll have to get new connectors for that now, getting close now though
About time too, coz we've got MASSIVE amounts of rain water rushing down the creeks, time to get the current riding going again

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I bought a pair of lipos 1350 Gen aces and will saddle pack in 2S is a 4400 from Steve from downunder Sicrc. Steve is moving close to you and has jet hulls that you have to put together, so putting equipment in will be a snap. He has 2 or 3 colors. Sicrc Boat Mods. I got this info from RCGroups. They have a huge thread on jet boats.Hope it isn't to out of shape!

millesm

that's the Selly's product...... melts plastic in seconds.

Shoo Goo is what you really wanted.

Another option that I use is from Spotlight - Polyurathane glue. Works a treat and is about $8 a bottle vs about $20 at bunnings.

littledvl

Been neglecting my nqd's, have aquired 3 since i built my first one (the black one)

the 2 white ones have been gutted and all parts ready to go back in, yellow one is gutted but no parts orderd for it yet.

Been too lazy to finish building them, hopefully ill get these built up before summer starts up, also wanna convert the reef racer to brushless.

seehuusen

Thanks for this! I'll purchase some of that stuff for the next one

I think the boats will run OK, but I'm concerned that air will be a problem, due to turbulence... Only trial will show I guess

SicRC is in Maryborough from memory, looking at his eBay profile. I've bought from him before, but get it posted still.
He might not be THAT far away, but the cost of driving my car 200km return isn't as cheap as the mail-man

prontozuk

this boat has been rebuilt since this video as went and played in the ocean and forgot to wash it out... new video next week after going away camping.

Same electronics new everything else and fitting some mesh to keep the pebbles out.

http://youtu.be/tqAEqdNHZF8

SkR8Pn

Creeks are full and I think its time to hit the water again..