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  1. #1

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    RCM and MHZ Z Drives

    I already have a RCMZ drive and im looking for another RCM Z drive if anyone has one.I have cash waiting.

    I have been offered an MHZ Z drive that looks exactly the same as my RCM but are they internally?
    Is the RCM Geared up 16%????

    With thanks

    Jack
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  2. #2

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    RE: RCM and MHZ Z Drives

    Not shure if they are geared the same i know there harder to find as they are not made anylonger i have a couple of the mhz z drives if you dont end up getting the mhz drive i may be interestedin it thanks

  3. #3

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    RE: RCM and MHZ Z Drives



    How do you get the Z drive apart!!!!

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  4. #4
    Moderator Justaddwata's Avatar
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    RE: RCM and MHZ Z Drives

    the RCM is a 1.16:1 ratio - same as the MHZ
    One of the better gas boat picture sites - http://imageevent.com/justaddwata

  5. #5

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    RE: RCM and MHZ Z Drives


    ORIGINAL: Jackal1983



    How do you get the Z drive apart!!!!

    There is a small set screw on the top of drive remove it then i use a small screwdriver to slide the bearing out this will alow you to get to the front bolt holding the lower unit i will be pulling one apart his week ill take some pics

  6. #6

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    RE: RCM and MHZ Z Drives

    That would be great rcguy!!! What loctite are you using to glue the shafts into place?
    I think I might buy the MHz on and put it on the back with my rmck one. Give them both a lick of paint!
    Cheers guys
    Jack
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  7. #7
    Moderator Justaddwata's Avatar
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    RE: RCM and MHZ Z Drives

    The MHZ drive should have a square input and so not need loctite. The RCM drive use Loctite 648 retaining compound for the flex cable/input gear.
    One of the better gas boat picture sites - http://imageevent.com/justaddwata

  8. #8

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    RE: RCM and MHZ Z Drives

    Here are a few pics of the drive apart
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  9. #9

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    RE: RCM and MHZ Z Drives

    Few more
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  10. #10

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    RE: RCM and MHZ Z Drives

    Not shure why that one pic keeps hetting turned upside down hope they help

  11. #11

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    RE: RCM and MHZ Z Drives

    thankyou very much rcguy.

    just a quick question does the imput shaft come out fairly easy?
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  12. #12

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    RE: RCM and MHZ Z Drives

    Once you remove the setscrew i use a small flat screwdriver to gently work the bearing out it comes out fairly easy just be carefull i want to make a tool that will spread apart that i can place in the flexshaft retainer so i can just pull the assembly out i have not tried to remove the output shaft im not shure how its held in if its a press fit or threaded ihave an S6 drive i want to pull apart as well but have not pulled one apart as of yet post pics of your build im going to put my drives on a Expresscraft 60" MTI using rear exhaust RCMK K30 s from holding he drives upto the boat it going to look sweet hope to get in the 60mph range anything above will just be iceing on the cake

  13. #13

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    RE: RCM and MHZ Z Drives

    Yep once i get everything together i'll do a build thread!!!

    Thanks again for your help!
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  14. #14
    hellya's Avatar
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    RE: RCM and MHZ Z Drives

    here we go brand new on the market..... just snagged up one for $500



  15. #15

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    RE: RCM and MHZ Z Drives


    ORIGINAL: hellya

    here we go brand new on the market..... just snagged up one for $500



    Where did you get it? is about a year that Arrowshark shows them as ""Sold Out"" Look here http://www.arrowshark.com/scale-drive.php
    Anyway, i'll take the mhz Alu-plain that is pretty similar
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  16. #16

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    RE: RCM and MHZ Z Drives

    Managed to get my self a MHz complete. I also got a complete MHz upper section and gears do I can change my rcmk one to look like a MHz with square input drives!!!
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  17. #17
    hellya's Avatar
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    RE: RCM and MHZ Z Drives

    ORIGINAL: Mario Giordano


    Where did you get it? is about a year that Arrowshark shows them as ''''Sold Out''''Â* Look here http://www.arrowshark.com/scale-drive.php
    Anyway, i'll take the mhz Alu-plain that is pretty similar
    look on that website.... they have one with small blemishes for $399

    Ya....mhz usa doesnt keep any of these drives in stock...I wonder why not??

  18. #18
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    RE: RCM and MHZ Z Drives

    I have the Arrowshark outrdrive going on one of my hulls also got a spare set of gears, got the whole setup for £250 its only been used twice lol.
    Mart
    Waveridermouldings,Manufacturer of quality race proven Hulls.

  19. #19

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    RE: RCM and MHZ Z Drives

    Well, they have only one and is defective, so goodbye arrowshark

    About mhz Usa,be careful, do not buy from them, Shirley told me that Mhz Usa does not work anymore, more than a year, they are not able to delivery MHZ parts anymore, if you want them you will have to take it in Germany, but no problem, they ship worldwide.

    Regards

  20. #20
    hellya's Avatar
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    RE: RCM and MHZ Z Drives

    ORIGINAL: Mario Giordano

    Well, they have only one and is defective, so goodbye arrowshark

    About mhz Usa,be careful, do not buy from them, Shirley told me that Mhz UsaÂ*does not work anymore, more than a year,Â*they are not able to delivery MHZ parts anymore, if you want them you will have to take it in Germany, but no problem, they ship worldwide.

    Regards
    Did you look on ebay... 2 arrowsharks units on there for $525 each

    Ich spreakin ze deutch....

  21. #21

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    RE: RCM and MHZ Z Drives

    MHZ USA is no longer up and running if you nees anthing MHZ germany is t he to go place great service fast shipping

  22. #22
    hellya's Avatar
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    RE: RCM and MHZ Z Drives

    wow something happened ...the 2 drives on ebay, the auction was pulled.....contacted the seller hes like "we dont make those anymore"...hahahaha

  23. #23

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    RE: RCM and MHZ Z Drives

    I told you so, in their web page appears as ""Sold Out""   
    Forget about arrowshark, go with mhz, also cheaper, 525 U$S = 408€ !!  mhz z-drive alu-plain =280€[8D]

    Regards


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