I had an M110 powered car that made noises like that once. I got my
stethoscope out to see where the noise was coming from, and revved it a
little bit to make the noise louder. Suddenly the motor stopped dead
from 2,000 rpm and a few pounds of aluminum chunks fell onto the ground
under the engine. I sold the car for $200 (twice what I paid) and never
found out what it was... That was my first and last gasoline powered
Mercedes.
Tyler
Robert Bigham wrote:
Hello Wilton; I'm baaaaack !
It seems that from a stone cold overnight wait, it's about 5 seconds from the
time the engine starts until oil pressure is shown on the dash gauge. During
that time the engine makes little metallic tapping and clicking noises.
>From a 1 hr rest period and a semi-warm restart, it's more like 1 second from
the time the engine starts until oil pressure is shown on the dash gauge.
I haven't had an opportunity to restart after a real road trip and a rest, but I can tell
you it's slow, and the engine makes larger metallic tapping and clicking noises, which
some have dismissed as "timing chain rattle," or something like that, until the
dash gauge indicates oil pressure. These noises are big enough that my son the race
engine builder was impressed by the noises.
I'm sure there can't be a whole lot wrong, because I can cruise at 80 mph all day (I don't like to drive a whole lot faster than that). I have almost no noticeable oil consumption. I have driven the car at indicated 105 mph and it had some left. Total indicated mileage 155, 7xx miles. Mileage driven by me 31,000 so far.
Thanks for your interest. I'll be interested to see what you think.
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