Old ops engine

Discussion in 'General RC Boating Forum' started by Vince Fantauzzi, Sep 11, 2019 at 4:40 PM.

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  1. Sep 11, 2019 at 4:40 PM #1

    Vince Fantauzzi

    Vince Fantauzzi

    Vince Fantauzzi

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    Does anyone know where I can find a collett/shaft adapter for this engine? 15682162734687372272322031948494.jpg 15682162734687372272322031948494.jpg 15682162734687372272322031948494.jpg lm
     
  2. Sep 11, 2019 at 5:09 PM #2

    JoachimRuess

    JoachimRuess

    JoachimRuess

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    Hello Vince,
    try aeromarine:
    the thread in the crankshaft is M6 (metric)!
    You will need a screw M6 too.
     
  3. Sep 11, 2019 at 6:32 PM #3

    Vince Fantauzzi

    Vince Fantauzzi

    Vince Fantauzzi

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    Thanks, Joachim... Looks like they have them. And I guess I'll have to provide the screw to fasten it to the crankshaft. Appreciate the help.
     
  4. Sep 11, 2019 at 11:33 PM #4

    brad nichols

    brad nichols

    brad nichols

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    My OPS 67 is 1/4 X 28 standard thread and is a stud. Cable nuts from Al Hobbs, Octura and lots of others

    Brad
     
  5. Sep 12, 2019 at 1:12 AM #5

    Vince Fantauzzi

    Vince Fantauzzi

    Vince Fantauzzi

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    Hey, Brad the thread opening on this engine crankshaft measures 5mm...tried a 1/4 28 way to big...looks like maybe I need a 5mm screw?
     

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  6. Sep 12, 2019 at 2:02 AM #6

    ALLAN YUEN

    ALLAN YUEN

    ALLAN YUEN

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    Look broke thread need to replace new whole crankshaft
     
  7. Sep 12, 2019 at 4:30 AM #7

    Terry Keeley

    Terry Keeley

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    It used a 1/4-28 threaded stud IIRC...
     
  8. Sep 12, 2019 at 12:05 PM #8

    JoachimRuess

    JoachimRuess

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    Vince,
    i am sure its M6 metric
     
  9. Sep 12, 2019 at 12:14 PM #9

    Brad Christy

    Brad Christy

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    Vince,

    The minor diameter of an M6x1.0 threaded hole is 5mm. While I have no direct experience with that engine, I'd say Joachim is correct.

    Thanks. Brad.
    Titan Racing Components
    BlackJack Hydros
    Model Machine and Precision LLC
     
  10. Sep 12, 2019 at 6:43 PM #10

    brad nichols

    brad nichols

    brad nichols

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    Gey a bolt and try it but don't force it

    Brad
     
  11. Sep 13, 2019 at 2:11 PM #11

    Joe Wiebelhaus

    Joe Wiebelhaus

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    YUP, every one of them.......................
     
  12. Sep 13, 2019 at 2:19 PM #12

    Vince Fantauzzi

    Vince Fantauzzi

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    Well, looks like Joachim was right, it is 6mm. So I went to the local nuts n bolts shop and got a 6mm stud and it threaded in like a honey. Now I gotta get my hands a 1/4 shaft collett with 6mm threads. Anyway, thank you all for the help and suggestions.
    Happy boating!
    Vince
     
  13. Sep 13, 2019 at 4:36 PM #13

    Terry Keeley

    Terry Keeley

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  14. Sep 13, 2019 at 5:35 PM #14

    Rudy Formanek

    Rudy Formanek

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    Vince, I have 3/16 and 1/4 collects came out of my old, old OPS67 stuff $20.00 ea plus $5.00 shipping, buy both and get a free drum valve intake free, $45.00 ps they are 6mm x1.0mm I am on way out the door, have race this weekend, but will be home evenings.
     

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