OK, ,more progress on the 6.3. The fuel is being replace and this pic shows why. Many years ago someone has crushed it by lifting the car incorrectly with a hoist ,jack or….forklift. In fact it was squashed in many places.
next pic shows one of the other crush points.
Next job is the Fuel lift pump.
As can be seen in the pic,the pump was mounted solidly and is 150mm too high,meaning that once the fuel level drops to 1/3rd tank level the pump was starting to starve for fuel . These pumps are not a suction pump,but a pressure pump.
This is the conduit where the vacuum lines for the central locking pass on the 280SE 3.5 Project… pretty neat and an example of the over engineering on Mercedes of the past.
The 6.3 was misfiring badly under acceleration. a big disappointment for the owner ,who had spent a lot of money getting the injection pump rebuilt and the ignition converted to electronic . So, when working under thecar replacing worn rubber joints and worn drive shaft parts I spotted the squashed fuel line .The picture on the right shows a really bad dent in the main fuel line . The entire line will have to be replaced ,and i am thinking this is probably the cause of the misfire
The Drive shaft with it’s new staked unijoints and rubber center support bracket .
Up on the hoist, the steering box coupler has been replaced ,Other jobs required are a new flex disc ,drive shaft universal joints and center support bearings. The diff support pivot bush was worn out so the diff was removed.
The brake hold down (or anti dive mechanism ) device was stripped and overhauled with new seals and bushes. The shafts were a bit stained from water getting in but otherwise OK.
The torque arm bushes will be replaced as these look to be the original do nuts and are as hard as rocks.
a bit hard to see in this shot,but this is a heat sheild uder the drivers foot well,which will be removed and cleaned so it does it’s job properly.
Nothing beats driving a vintage Benz on a long trip.
This year was no exception and I took my 300SEL 6.3 to Gladstone to stay at a relatives and enjoy a bit of seasonal cheer. The car ran great ( except for a blown fuel line which wasted $100 worth of fuel on the road) but I suspect the injection pump ,which I had rebuilt some years ago at great expense ,is running far too lean. how long since exhaust pipes were this color? or are they slipping lead back into high octane fuel?
That’s my 6.3 at Rockhampton where we spent a few hours looking for an RV for a relative.