Howdy !
Hope you're all doing well and is getting ready for August.
Progress report from this side of the pond , the short version:
Essensially started ALL over again with the 'rebuild' engine.
Didn'tlike what I saw inside of it.
Got a BRAND NEW NOS crank/con-rod assembly.
That is harder to find than a full set of hens teeth in a very big haystack
( or something )
..and better quality main bearings
Puzzle for big boys
..worked over and flattened every single surface that 'mates' to other stuff
..got hold of all the parts for the rear-assembly, brakes , drive etc
..and fixed them up
..and painted
...now, that's better
..yet another puzzle for big boys
..got the camshaft back from the local machinist. 'Extended a couple of inches
...that will hold the blower-pully
.. he also made a 'lid' with an oil-seal from where the extension will pass through
...fixing up stuff, gear-change mechanism, modified ignition system etc.
..ripped the old ignition-coil out of the housing and inserted a ned HT lead connection.
Will now run a normal hi-performance ignition-coil mounted on the frame
...loads of paintwork to do
..tank with new filler-thingy almost ready
.. lots of repair, modifying and paintwork on the fairing
.. got an AKRONT rim for the rear-wheel off German Ebay
.. and laced it up with custom-made spokes
.. lend orginal Nimbus tools for setting up the drive crown/pinion gear
.. tricky and timeconsuming shim set-up
..had a bunch of things laser-cut: engine mounts, rear-wheel / drive mounts and a kick-starter
..time to tack the frame together properly with help from a guy smarter than me.
Welded the frame to the table
.. made spacers and stuff to keep everything in right position
...enden up looking hilarious, but it worked pretty well
..and it kind'a looks like a frame. Still only tacked together
..setting up blower
..made new intake-system
..made a photo session mostly to brag about probably being the only guy in the
world with 3 supercharged old motorcycles
..smoooooth ,ain't it ?!
..2300 cc of supercharged goodies
..had the crankshaft checked in this fine piece of equipment ( not my crank in the photo )
..to see how well it was balanced. Big surprice: maximum out-of-balance at 1200RPM
was 1.5 gram (0,0529 ounces) , dropping up the range to 0.8 gram (0,0282 ounces)
That is like nothing. A brand new car-crank is around 3-4 grams
..finished the zoomies with metal inserts to fit it up to the cylinder-head
..and it was time to get the engine together again / again / again
...setting up crank-shaft / clutch
..I love this part
..never done an engine this way, but that's how to do a Nimbus
Borrowed an electric-driven run-in table from a Nimbus workshop.
8 hours of running it, just like they did with every single engine at the factory back in the days
http://youtu.be/JGh6893rjrk..I sat it up so it sucked the oil-mist out and into the intake to lube things up
..changed the oil a couple of times and it contained no nasty surprises
Time to get this thing running !!!
Yesterday was my birthday and an appropiate occation to bring ”Odin's Fury”
to life :
Click and turn UP sound :
https://youtu.be/taE7l68DcRoYeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeah !!!