Quote:
Originally Posted by Threewheelbonnie
A pure air cooled engine (like a Enfield) is designed for the optimum temperatures, the tolerances close up to make better fits as it warms up, then get a bit too tight causing wear if you run it too hard for too long. This I'm guessing is the sort of motor people are telling you about. A Bullet motor with it's 1950's materials and ancient lubrication circuit won't run for tank after tank at motorway speeds without wearing faster than it should.
Andy
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You appraisal of the Enfield is so out of date I am surprised you did not warn him about the girder forks and solid rear suspension equipped with cross ply tyres .
Truth is since 2004 they have been running a modern AVL designed engine which has nicasil barrel ( they usually do over 200K in BMW's). There have been some problems with exhaust valves sticking, mainly due to people removing the PAV which in the Enfields case directs the cool air onto the exhaust valve. Remove the PAV and you remove its cooling.
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