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Comparing the Morini engine to American engines, the valve gear is, without doing the calculations, under more stress in the Morini engine owing to inertia; the load on the valve gear increases exponentially as speed rises and as the Morini normally runs in the 4500-8000 rev band and the American V8...

Having seen a number of Morinis with Tarrozzi rear sets all having been welded, I made my own. But, luckily for me I had at the time a WeeVee road racer to use as an example. Triangulate a plate of aluminium 5/16", drill out the swinging arm spindle(If you still have the iron bushes or even wor...

Ethanol fuels were available in this country up to 1968 when National Discol and Cleveland stopped producing it owing to the readily available and more cheaply produced 101octane leaded fuels. My father would always fill up with these 10% alcohol fuels whenever going on long runs in the car. I own a...

As the forth coming anniversary is upon us, I have a collection of the early Tutto Gas magazines no longer wanted. I have July 78-June79 News letters printed by Harglo, A5 magazines July79-Feb91 then Dec97-June09 plus some duplicates + odd ones. The early magazines are well worth reading owing to th...

Check that the piston rings have no up and down(side) play in the groove. If the rings are too loose (> 0.005") then they flutter and hence act as pumps. Ring gaps are not that important and can be up to 0.015" without detriment and can wear to that amount in normal usage. Do not use a syn...

Sorry to put a can in your spokes, but I regulary use to pull 130+ on my 350 Beart-Aermachi in the early seventies on the long Norwich straight at Snetterton which corresponded to 8200-8500 rpm depending on weather conditions. This was TT gearing and she was only supposed to pull 8000rpm so would ha...

I also have a 507cc five speed in a 350 frame. The heads and barrels were new with the heads not having the inlet stubs fitted. Not liking this inlet set up, owing to the rubber inlets closing down in diameter in the bend, I chose to mount the carbs on solid inlets with the carbs but jointed and hel...