WIX Archives
Re: So.. Merlins were cast....?
Posted by Elliott on Sun Jul 13, 2003 07:38:36 AM
In reply top Re: So.. Merlins were cast....? posted by Jason on Sun Jul 13, 2003 05:52:37 AM
thanks jason - so the crank case was presumably cast as a single block then milled out?
I wonder how many parts the mould had - anyone have any ideas?
: I am certain Merlin crankcases (and cylinders banks, heads
: , accessory and supercharger housings)were cast, then mach
: ined.
:
: Looking at the outside of the Merlin crankcase it appears
: quite rough, as though the mold was "carved" out.
:
: I vaguely recall that a mold for a Merlin crankcase wouldn
: 't last very long, and would have to be replaced every hun
: dred castings or so??
:
: I know that Allison V1710 engines had cast crankcases etc,
: and that their cranks and driveshafts etc were steel forg
: ings that were heavily machined.
:
: This subject has got me interested now...will try and do a
: bit more research.
:
: Jason
: