CMB 91RS M-Line - Which plug?

Discussion in 'General RC Boating Forum' started by Jake Ellwood, Nov 7, 2019.

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  1. Nov 7, 2019 #1

    Jake Ellwood

    Jake Ellwood

    Jake Ellwood

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    Hi there,

    I recently picked up a CMB 91RS M-Line, have never owned a CMB before. Can't find any recommendations regarding a plug. I am assuming these are a hot engine so require a cold plug, can anyone with experience confirm this? It will be run on 25% Nitro if that makes any difference :)

    Thanks in advance!
    Jake
     
  2. Nov 7, 2019 #2

    gilbert galli

    gilbert galli

    gilbert galli

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    os turbo glow plugs rp7 or rp8 are very nice,
    you must not use conical glow plugs type novarossi, the cone has a different angle
     
  3. Nov 7, 2019 #3

    Jake Ellwood

    Jake Ellwood

    Jake Ellwood

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    Thanks Gilbert! Just checked and that's a cold plug. Excellent. I've already got some OS A5s in stock which are cold and go well in our MACs so I'll use one of those!
     
  4. Nov 7, 2019 #4
  5. Nov 7, 2019 #5

    Jake Ellwood

    Jake Ellwood

    Jake Ellwood

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    Yep I noticed earlier when I tried to put an A5 in it it's just too small. Looking at your link you can see the turbos are thicker! So will get some ordered. Thank you :)
     
  6. Nov 7, 2019 #6

    Andy Nightingale

    Andy Nightingale

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    Glad this question was asked, my M-Line arrived last week...
     
  7. Nov 7, 2019 #7

    Jake Ellwood

    Jake Ellwood

    Jake Ellwood

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    Isn't it pretty? :D
     
  8. Nov 8, 2019 #8

    Andy Nightingale

    Andy Nightingale

    Andy Nightingale

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    It is, looks great with the 45" Seaducer I had delivered this morning for it
     
    Jake Ellwood likes this.
  9. Nov 9, 2019 #9

    phill fields

    phill fields

    phill fields

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    Hi guys I've run this engine on 25% with O'Donnell 299T with great success in Europe (Endurance racing). And with 40% in my hydro the same plugs are great. Have tried other brands and have never had the same constancy that I get with O'Donnell.
     
  10. Nov 9, 2019 #10

    ALLAN YUEN

    ALLAN YUEN

    ALLAN YUEN

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    Which one did you use : cone glow plug or standard glow plug for new CMB91 RS M-line red head?
     
  11. Nov 10, 2019 #11

    gilbert galli

    gilbert galli

    gilbert galli

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    in europe the engines are delivered with a cone glow plug
     
  12. Nov 11, 2019 #12

    ALLAN YUEN

    ALLAN YUEN

    ALLAN YUEN

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    I am surprised that NovaRossi cone glow plug doesn’t fit to CMB91 M-line ? Must use only CMB or OS cone glow plugs about Rossi ? Thanks
     
  13. Nov 11, 2019 #13

    Jake Ellwood

    Jake Ellwood

    Jake Ellwood

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    I am Portugal & UK based, ordered my engine directly from CMB, no plug was supplied with it.
     
  14. Nov 12, 2019 at 7:23 AM #14

    gilbert galli

    gilbert galli

    gilbert galli

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    Allan, the glow plug cone CMB Picco OS is different, if you put a novarossi glow plug it works, but the tapered range of the cylinder head will be deformed, there will be leakage with loss of compression and oil from everywhere on the engine, AXE Rossi manufactures turbo xt with OS cone, the rt are similar to novarossi
     

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