Brian.G wrote: ↑
Fri May 31, 2019 2:09 pm
Mudflap wrote: ↑
Fri May 31, 2019 1:06 pm
All F1 engines I know of have used some form of sintered tungsten for crank balance weights. Densamet and another alloy I can't remember seemed to be the more common ones.
Great topic as usual Brian.
One thing I want to add is that the nose fitting functions as an oil centrifugal separator. I am fairly sure that what you have identified as a drilling for cooling the first balance mass is actually the air outlet from the middle of the fitting impeller.
You are correct re air way I would imagine as it would collect there since it is less susceptible to G force. - I'm not sure how the air would actually escape past the vertical o-ringed plugs however but perhaps it would push past the lower o-ring.
Paul Morgan's (Ilmor) son has a twitter account where they share pictures of a F1 V10 restoration.
Note a similar device at the crankshaft oil inlet: