Intake burnt, oil gasket leak.

[Erkki]

Originally Posted by Moggy

However, did you know that if the 109 had the same fuel system as the Hurricane and Spitfire...it would of had greater engine power? The Merlin puts it fuel through the supercharger thus cooling the air and providing greater horsepower. The 109 with it's direct fuel injection didn't and thus loses out on the extra power. 1 less reason to fly 109s

This is explained by Sir Stanley Hooker in the excellent BBC documentary Spitfire! Two seconds to kill. If you're in the UK, you can view it here (watch from about 26:00 in);

http://www.bbc.co.uk/archive/battleo...in/11405.shtml

And yet the light DB engine had better power-to-weight ratio.