• Hi Guest!
    If you appreciate British Car Forum and our 25 years of supporting British car enthusiasts with technical and anicdotal information, collected from our thousands of great members, please support us with a low-cost subscription. You can become a supporting member for less than the dues of most car clubs.
    There are some perks with a member upgrade!
    **Upgrade Now**
    (PS: Subscribers don't see this gawd-aweful banner
Tips
Tips

I'll Show You Mine If You'll Show Me Yours

Share this page

I hate replying to my own posts, but in this case I will add a bit of British content. The system used to actuate the OHC in these motors (I mean, NSU offerings including the Max, Super Max, Maxi 175ccm and much sought after Super Fox 125ccm) was earlier used by Bently in what I think of as their Golden Era. RR also produced a little known motor called a "Merlin" that may have used something similar, as well as a strange 'rotary' valve system. Liner to rotary and back,and back again...elegant IMHO.

Cheers!
Dave G.
 
Here come them devilish Desmodromic valves again!!

Hey Dave! Wanna come down to Florida and set th' valves in th' ol' Spitzgrummish Agamemnon?!?! /ubbthreads/images/graemlins/jester.gif

BWUHAAHAHAAA!!!!!!
 
Heh! Na, not really desmos, although they do use em on Ducks beginning about the same period as mine (see above).
I was talking about the way the overhead camshafts are spun, or in the case of the Supermarine Aero engines the "sleeve" valves (they don't use camshafts!).
Two (or 3 I think on the bently)offset discs are spun at half crank speed, a kind of connecting rod(s) transfer the motion up to the cam where another set of offset discs live. Rotary - (discs) linear -(rods) rotary again -(cam discs).
On the NSU, if you cover the pipe while it is idling, there is no sound at all from the engine except a kinda very quiet 'whirring'!

"Spitzgrummish Agamemnon?!?!" ? (sound of something going over[my]head)?

Cheers!
Dave G.
 
[ QUOTE ]
This has been in my family since the late 70's. Mine for the last 20 years. It has an HPI cam and motor. Its very peppy for a Norton. Mods are from the 70's and are thus period correct. This Commando hauls.

[/ QUOTE ]

ALL Norton's haul! Interesting color - your green one & my yellow one might be rare colors as most of the ones I see are black!
 
I thought that Ducati was newer, like maybe a late 70's 860. They have really grown on me.
 
Mine is a bit later than the earliest production desmo's, a very late (74) "round case bevel". the 860's had a more angular look to the cases and a very different (worse IMHO) frame.
The GTS was the 860 with an electric start (HAH!) that never worked and a kick starter designed by the Spanish Inquisition (which of course, Nobody expected /ubbthreads/images/graemlins/smile.gif). If you get the right duck you will love it, but they produced some "questionable" models too.
My "daily driver" is the BSA - light, enough power, and first kick starting..oh yeah, one carb. too!

Cheers!
Dave G.
 
I bought this 1968 Royal Enfield Series 1 1/2 Interceptor 750 in Delta Junction, AK in '88. I sold it last November.

I'll miss it, but the new owner really really wanted it.
 

Attachments

  • 223404-ZoomedRE.jpg
    223404-ZoomedRE.jpg
    43.9 KB · Views: 176
I owned this from about '84 to '92. It was great fun to ride, and I rode the crap out of it. It never leaked or had any problems. If you look closely at the pipes you can see how they got a bit flattened at the kink from dragging in right turns.
 

Attachments

  • 223810-Hurricane@theLookoutSavedown.JPG
    223810-Hurricane@theLookoutSavedown.JPG
    56.9 KB · Views: 181
Nice bikes guys, this is the one for me.. sold all the other bikes, bought this one from my old roomate in college, 20+ years ago... it was choppered quite a bit, so been buying all the correct sheetmetal and am final finished collecting... starting to rebuild the motor now... it will be a long process.. but 59 bonnie will be my final bike.....
59bonnie_sheetmetal.jpg
 
Na, you don't want to rebuild that bike...you want me to come up & relieve you of the possibility of cracking an ankle someday....just think of it as "medical preventive insurance"....hehehehe

Seriously, nice looking bike.
 
Yes, that is a seriously nice old Bonnie you have there! Monoblocs, mag, You don't have to go back much further in the Triumph blood line to run into "sprung" rear hubs!

Cheers!
Dave G.
 
Super7 - you in Delta Junction now? If so, I can tell you where there's a beautiful BMWbike that's been sitting in a garage for at least 10 years...
 
Pretty Bonnie you've got there. Hope you enjoy getting her back to her old glory, though you do realize that now that you've shown her here, you'll have to let us all take her out for a spin. /ubbthreads/images/graemlins/grin.gif

In my home town in a consignment/antique shop there is an early BMW with sidecar in the window, as a prop I think. Keep meaning to pop in and check it out, let them know where to send it if they ever need to get rid of it...
 
Back
Top