Aluminum Oil Pan Ford Escape
What cars have used aluminum for oil pans for years? I have never
owned one before the Escape. I have owned most GM cars in the past and
now I have Fords. As far as I know, the GM cars all had steel or cast
iron engine parts. Actually my 85 cutlass had an aluminum intake
manifold, I think.
I remember the 74 Vega had an aluminum engine and was a lot of
trouble.
A friend of mine showed me a piston from a Olds cutlass 403 in^3 and
it appears to be an aluminum alloy.
Aluminum has a wt density of .098 lb/in^3 and steel is .286 lb/in^3.
There is a definite mass advantage ot having a lighter piston, but the
modulus of elasticity for steel (or cast iron) is 30x10^6 psi as
opposed ot 10x10^6 psi for aluminum. The stiffness to mass ratio for
steel is the same as that of aluminum, but the strength of hardened
(and tempered) steel is way greater than that of aluminum.
I guess it has been decide by auto manufacturers that stiffness and
strength is not important and mass is important?
How long will an aluminum engine last as oppised to cast iron.
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