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  1. #926

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    RE: HK Small Bolt Hydro same as HOTR

    These things must not be put together well!

  2. #927

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    RE: HK Small Bolt Hydro same as HOTR

    Yeah thats what I thought.

    Opening is the easy bit, back toghether ..... will weigh it up.

    Bass - put toghether with butter ! The gelcoat is thicker than the glass.

  3. #928

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    RE: HK Small Bolt Hydro same as HOTR

    Well I would never have beleived it.

    After 4 weeks under water my Lipo's are taking a charge.

    Put them on NIMH up to 6V then lipo balance.

    Unbeleiveable !

    edit - all the electronics are god besides the ESC.

    time for some glasswork.

  4. #929
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    RE: HK Small Bolt Hydro same as HOTR

    I just changed over to the GT3B system - bought 10 receivers for under $60! I lost more $$ than that when just one of my Airtronic receivers got wet and lost 2 of 3 channels. Am going to get some spray liquid electrical tape (conformal coating) and waterproof them all at one time & get that outta the way. Watch those lipos and follow the rules (charge on non-combustable surface, don't leave them alone, etc.). They may be fine (I hope so, anyways), but suspect that sneaky things will happen. Store in a metal box - ammo boxes are ideal.

  5. #930

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    RE: HK Small Bolt Hydro same as HOTR

    Hey sdz - You are right.

    Since posting above one of them has puffed to the point that I wont use it. The other just slightly.

    I might just bin them. I have 2 others anyway. Cant be having unpredicatble lipos.

    Regarding the rx - I tried a new way to water proof today. I just filled the casing with electronic grade silicone, put the board back in and closed squeezing the excess through all the holes.

    Conformal didnt work for me but on my other one the liquid plastic seems to be holding up just fine.

    See pic.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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  6. #931

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    RE: HK Small Bolt Hydro same as HOTR

    I do it a lot easier and also a lot less beautiful. I put easy gasket on the entire esc, from Innotec. It is a bit pricey but I got it from my early carreer in the car garage when I was young.
    But it is effective. Another method is the hot glue method, and don't be greedy with using it. after than, put the RX in a balloon and you are sure, it won't be wet.

  7. #932

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    RE: HK Small Bolt Hydro same as HOTR

    All good ideas. Just experimenting now with silicone after a reccomendation from astec.

    I just checked my 4800kv motor and guess what - it seems to be stiff to turn. With no coupling I cant turn it by hand.

    I wonder if its bearings or something else. In any case I dont trust it any more so am on the lookout for a new motor for 2S running.

    4800kv upwards. Any ideas ?

  8. #933
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    RE: HK Small Bolt Hydro same as HOTR

    ORIGINAL: Rake

    Regarding the rx - I tried a new way to water proof today. I just filled the casing with electronic grade silicone, put the board back in and closed squeezing the excess through all the holes.

    Conformal didnt work for me but on my other one the liquid plastic seems to be holding up just fine.
    I'd like to see water try to get into that receiver! I guess conformal coating and liquid electrical tape are two different things. I will heed your experience about conformal. Thx! This looks like a good candidate for a motor.

    Nickster, EZ gasket sounds like the brush-on liquid tape which looks to be a mess (but I bet it works)! With the clear spray-on, you take the receiver board out of the case, and spray 2 coats and re-assemble. You can still see the light and it looks neater.

  9. #934

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    RE: HK Small Bolt Hydro same as HOTR

    Hi sdz - no messing now. water ingres beware

    My Rx was done with conformal when it went nuts and crashed hence I switched to spray plastic which has been working well. I spoke to astec and he usese silicone so will try this out and let you know. This is the Rx from the sunken bolt - no corrosion on it at all !

    As I type one of those lipos is warming. Its going outside !

    Yeah I saw that keda looks nice with the chrome ends too.
    I was hoping to find one with higher rpm but its proving hard to find in 20/40 size.

    Wanted a quality motor as the last one only took 8 runs to bind up like that.

    found this one too.

    http://cgi.ebay.co.uk/2040SL-4800kv-...item3cb2a9ddc0

    many thanks.

  10. #935

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    RE: HK Small Bolt Hydro same as HOTR

    Thats maybe a good ideA: to dismantle the esc and put the easy gasket and hot glue onto the board and than put it back into its housing. Besides: i put the esc in the sponson underneath the ledge, so i cant even see the light even if I want to. And it does always work. I only forgot to set up the fail safe so i have to remove the easy gasket to set it up, thats a great opportunity to make it look a little less messy. 


  11. #936

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    RE: HK Small Bolt Hydro same as HOTR

    With nitro boats you need an air intake for the engine so you drill an 1/8 th inch hole in the back of the transom with foam floatation up by the vitals. The only way the boat will take in water is if you stop. Or you may use a one way check valve.

  12. #937

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    RE: HK Small Bolt Hydro same as HOTR

    Hmm just found something a little worrying with the stock motor.

    The wires are real thin and upon desoldering I found that most of the strands were broken on 2 of the wires so I shortened and resoldered only for the wires to break again.

    Down to the last inch of wire now - might be time for 2 new motors.

    I stripped the 4800kv one down and it was binding due to the bearings on the shaft side having bound up.

    KEDA 4800kv ordered to replace it with.

  13. #938

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    RE: HK Small Bolt Hydro same as HOTR

    I have the stock motor with one of my couplers on it I would let go cheap.

  14. #939

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    RE: HK Small Bolt Hydro same as HOTR

    Might be a plan Bass send me a PM let me know how much inc postage.

    While you are on - I just got my flex / stub / liner kit from OSE, the liner looks smaller than the stuffing tube - did you use the stock tube or change out ?

    Cheers.

  15. #940

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    RE: HK Small Bolt Hydro same as HOTR

    Changed it out. I put in the OSE recommended 3/16" (I think u should confirm first).

    I would let the motor coupler go for $20 + postage

    Motor has maybe 5 minutes run time on it (if).

  16. #941

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    RE: HK Small Bolt Hydro same as HOTR


    ORIGINAL: Basstronics

    Changed it out. I put in the OSE recommended 3/16'' (I think u should confirm first).

    I would let the motor coupler go for $20 + postage

    Motor has maybe 5 minutes run time on it (if).
    Thanks,

    What did you do at the strut end to make the new tube fit Bass ?
    I neglected to get a tube thinking that it would fit the stock one.

    I'll get back to you on the motor soon. I take it the coupler is for stock flex ?

  17. #942
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    RE: HK Small Bolt Hydro same as HOTR


    ORIGINAL: Rake


    ORIGINAL: Basstronics

    Changed it out. I put in the OSE recommended 3/16'' (I think u should confirm first).
    Thanks,

    What did you do at the strut end to make the new tube fit Bass ?
    I neglected to get a tube thinking that it would fit the stock one.

    I'll get back to you on the motor soon. I take it the coupler is for stock flex ?
    Is the original liner way too large for the new flex? If it were me, I'd try it with the original liner.

  18. #943

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    RE: HK Small Bolt Hydro same as HOTR

    The brass isnt to different. I just put it in the strut like the stock.

    The motor is the stock motor with my coupler on it (.098" cable).

  19. #944

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    RE: HK Small Bolt Hydro same as HOTR

    I just checkedand with the stock stuffing tube there is quite a big gap.

    I ordered a bit of 3/16 K&S Brass this afternoon and will soon be facing the same issues as Bass in as much as the 3/16 tube is or seems a bit too big for the liner wich is just over 1/8

    Bass - is there not a huge gap between the strut and brass if using the 3/16 ?

  20. #945

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    RE: HK Small Bolt Hydro same as HOTR

    Hey I misread your post sdz, The new liner fits in the old liner with the flex.

    Is this ok to have 2 liners one inside the other ? One might end up spinning in the other

  21. #946
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    RE: HK Small Bolt Hydro same as HOTR

    Absolutely. Just clean the inside of the original completely with something like auto brake cleaner and glue the new one in there. Done. But I have a feeling just putting the new flex in the larger original liner will be fine. It doesn't need to be a tight fit! MOF, some people in the racing circuit just remove the liner completely and just add extra grease. No liner = less friction points.

    I would try the new flex in the well greased original liner first and see how things act. I'm betting it will be fine. If you find you need to (because of water ingress, for example), you can add the smaller liner any time. No need either way to change the stuffing tube (sorry Bass!) There are no hard set rules here, and you don't want a lot of friction in this small boat anyways.

  22. #947

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    RE: HK Small Bolt Hydro same as HOTR

    Thanks mate.

    I'll give it a try as soon as the new Basstronics coupler and keda motor arrive. I do hope my 20mm water jacket fits the keda or I will have to run it on finned heatsink and see how it goes.

    I did notice that on OSE they reccomend a smaller tube when running without liner though. Never the less - worth a try ! I have the 3/16ths coming now anyways so it can sit on a shelf.
    I do get the feeling that a bearing strut is the way forward here too so will be experimineting very soon. Just need those bearings to arrive.

    found these but 3mm is not 1/8th which is 3.175mm

    http://www.astecmodels.co.uk/catalog...oducts_id=1004

    flanged bearing 3x6x2.5 £2.28 Inc. VAT



    Click to enlarge
    Flanged Miniature ball bearing steel sealed.

    ID = 3mm
    OD = 6MM
    Flange OD = 7,5MM
    Thickness 2.5mm



    On another topic - my 2200mah 40 cells - one has puffed slightly ! only been run a few times...

  23. #948
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    RE: HK Small Bolt Hydro same as HOTR

    A 1/8 x 1/4 stainless flanged teflon sealed bearing is what you're looking for. I found some, but they want to sell you 10 for around 50 bucks! I'll check around this evening and see what else I can find. That is a bummer about that lipo! A lemon? or bad quality control? []

  24. #949

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    RE: HK Small Bolt Hydro same as HOTR


    ORIGINAL: sundogz

    A 1/8 x 1/4 stainless flanged teflon sealed bearing is what you're looking for. I found some, but they want to sell you 10 for around 50 bucks! I'll check around this evening and see what else I can find. That is a bummer about that lipo! A lemon? or bad quality control? []
    Thanks sdz, been looking high and low for them but cant seem to find any appart from those I got from fleabay.

    Incidentally the bearings on my 4800 were rusted.

    Dont know what happened to the lipo, I may see if they are covered by warranty. They were never deep discharged or anything like that.
    May have gotten some water in the hull but that still doesn't account for it.

    Gonna try her on 4S tommorrow, proping down to stock for starters.

  25. #950

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    RE: HK Small Bolt Hydro same as HOTR

    http://simplybearings.co.uk/shop/p15...duct_info.html

    Not teflon though

    SFR14ZZ seems to be the code for flanged
    SR14ZZ unflanged.

    Incidentally - the coupler from bolt 1 fitted to bolt 2 - no ovaling.


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