Nick, I have looked under the RHS bonnet on our 4/4 Twin Cam (Fiat engine), you cannot see the flywheel. There is a large pressed steel plate sandwiched between the engine and gearbox, guess this is missing on your +4.
Jack 1985 4/4 T/C 4 seater Royal Ivory 1934 F Type 2018 Pembleton SuperSport (self built).
