Talk Morgan Forums Morgan Sports Cars Morgan Three Wheeler & Super 3 urban cooling kit - bug or feature?

there was no explicit 2013 model, however since 2012 along with some other improvements the 2014 model has:
- a triangulated 'webbing' between the engine and bonnet connecting the in-line and transverse chassis tubes at the top front. (note in q8's picture he only has a horizontal bar indicating pre 2014 and post early 2012) the triagulation must also have caused a change to the horizontal beam location otherwise there would be interference between the steering rack and webbing.
- vents at the back of the car (purely aesthetic and look like 4 wheeler bonnet vents, i am sure they have a proper name)
- new steering set up
- different oil tank with oil outlet so as to ease oil changes. dipstic part of tank rather than cap.
- new brake fluid reservoir tanks
- plastic tube cable and piping protection
- tri rectifier mount (three bobbins) (i think the latest models have the rectifier facing left?)
- centra drive compensator (rubber rather than spring based torque smoother between the engine and gearbox
- different price list and options scheme for new models such as body coloured cowl.
- cooling kit (don't know if this is a deletion option or is fixed as standard, some people thing its ugly)
- bevel box mount made of aluminium and different design for resonance absorbtion like the retro-fit upgrade????



there were however constant updates between the 2012 model introduction and the 2014 model as the company implemented many essential improvements onto the production line process rather than wait for the 2014 release. notably the alignment of the rear wheel on very early cars was a couple of cm too much to the left. the sprockets at the back were also changed as was the bevel box design.




on the subject of vibration and fatigue:
as long as the vibration is below the fatigue limit of the steel, the steel can be vibrated a near infinite number of times without cracking.
vibrations on the steel may even strengthen items due to 'cold working hardening'

However, once a deformity has been 'induced', then a crack can grow because at the apex of the crack, the
lattice is stressed beyond the fatigue limit.
ie vibration of the engine alone cannot cause cracking, but may make it worse once an incident has happened.
that is why it is important to deal with the pre 2012 chassis phenomenon before you hit the bad pothole, rather than wait for a crack to appear. the problem is that the engine has to come out for any strengthening work to be done. 8 hours labour plus parts and welding skill/ risk.


in contrast aluminium sufferes from creep where the atoms in the lattice can slide past one another permanently at room temperature with a force applied. (that is why the frame chassis is not made of aluminium and why aircraft servicing is required every few landings.)