It sounds just like a metal engine fan hitting a metal radiator shroud.

The car is a 280E. It makes the noise only when the car first gets rolling from a standing start and when braking ubruptly during reversing. The motor mounts and the transmission mount have been replaced but the noise is unchanged.

It seems to come from under the car. The exhaust does not seem to be hitting anything and it is a rotational noise rather than a rubbing or knocking.

Front pump? It has the old style transmission.

Thanks guys!

there is nothing stuck in the inspection cover of the torque converter housing?

that is the first place to look, then back under to the driveshaft area.

tom w

__________________
[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.