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Originally Posted by paulyoung666
not necessarily a big bang , some engines dont lunch themselves when the belt goes , why they all dont is beyond me  |
You are quite right Paul. A very few engines have enough clearance between the piston crown at t.d.c. and the valve at full extension. Therefore no collision. The engine will still stop though ! However in most engines if the valve stops at full push down after the cam belt has broken the piston crown will collide with it on its way up to t.d.c. - bang !!
Fortunately for me the old Ford Escort engines was one which avoided this self destruct attitude. !!
