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original pee-shooters?

Discussion in 'Norton Commando Motorcycles (Classic)' started by alan hodge, Dec 4, 2019.

  1. alan hodge

    alan hodge

    Oct 10, 2017
    call me fickle but I took the dunstall replica silencers off my commando and put the so-called original peashooters back on ..how to tell if they are indeed original Norton ones? I looked down the tube with flashlight and see crescent shaped louvers but there are no identifying marks of any type on them ... real or fake?
  2. lazyeye6

    lazyeye6 VIP MEMBER

    Feb 28, 2014
    Wasn't going to call you anything other than a Norton fan. Does it matter? Isn't it about riding the beasts?
  3. joe czech

    joe czech

    Feb 21, 2019
    I posted a similar question back in September - https://www.accessnorton.com/NortonCommando/original-mufflers.28823/. first thing I've got to ask, what year? I was getting answers both ways - original and non-original -- nothing definite. seems originals are supposed to have the muffler mutes welded, or brazed in place, and then the muffler assembly chrome plated. also, the exit diameter is supposed to be 1-1/8 inch vs. 1-3/8 inch for aftermarket. mine are approximately 1.0 inches with welded mutes. i'm no expert, so I really don't know one way or another. if you go the linked thread, I posted several pics of my 74 Mk2 mufflers which now I believe are original. ;)
  4. Joe Schlaberdowski

    Joe Schlaberdowski

    Jan 1, 2017
    I don't know. If you baffle it differently it would not only sound different, but it could affect the performance. The Norton engineers designed it that way for a reason. It became very popular. A copy might look the same on the outside and be very different on the inside
  5. ashman


    Jul 11, 2010
    45 years you think the original mufflers inside be long rusted out by now if they had been used ???

  6. MexicoMike


    Jan 31, 2010
    If you can't tell if they are original and nobody else can tell you if they are original then methinks you are worrying to much! ;)
    Tornado likes this.
  7. Fullauto

    Fullauto VIP MEMBER

    Apr 13, 2009
    Just hope that you have "pea shooters", not "pee shooters". You can tell by the smell.
    Tornado, maylar, Scout63 and 2 others like this.
  8. Danno


    Feb 7, 2010
    If the engine they were connected to was an oil-user, they could be well-preserved.
    ashman likes this.
  9. alan hodge

    alan hodge

    Oct 10, 2017
    they came from a friend's 74 chrome in near perfect shape quite a bit heavier than the emgo dunstalls that I wiped down with wd40 and put back in box
  10. alan hodge

    alan hodge

    Oct 10, 2017
    I guess I should have said original "brand"
  11. xbacksideslider

    xbacksideslider VIP MEMBER

    Aug 19, 2010
    As I recall, they varied from year to year. Early OEM peashooters appeared to have a slightly smaller outlet.

    I bought a new Commando in ‘71 and it had the slightly larger ID ones.
  12. kerinorton


    Feb 12, 2013
    I still have the original pea shooters on my '71 750 [ clocked 14,000 miles ]. I was told they originally came with a removable mute. If you look down inside them they have 3 rows of gills which form a deltic or triangular profile. They whistle on the over run. Great sound.
  13. Onder


    May 11, 2010
    About 5 years ago I bought a set from AN they had Norton stamped on the end somewhere. They have three rows of scallops on the inside. If you really lay the wood on they are LOUD. In warm weather when people drive about with the windows open and you pass one at full bore up at the red line you could easily damage the hearing of the car
    driver. Around town throttle back they are not really that loud at all.
  14. illf8ed

    illf8ed VIP MEMBER

    Dec 30, 2003
    Original design on my ‘72 was what you describe....straight through with louvers and glass packing. “Should be able to shoot a bullet through them”. Actual original supplied by Norton Villiers Ltd have not been around for quite some time.

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