Date registered: Oct 2013
Vehicle: 1982 240D, 1984 Euro 300TD
Location: Alexandria, Virginia
Mentioned: 2 Post(s)
Quoted: 36 Post(s)
The Chicken & the Egg Game, or To Re-tank or Not Re-tank Mike's '72 280SE
My friend Mike has a '72 W108 280SE, with the M130 six.
His gas tank has lots of rust & crud in the bottom and the car has become undriveable. It also had several gallons of pretty old, stale gas, which I was able to pump out, along with alot of rust, after pulling the gauge sending unit.
There's also a plastic well surrounding the in-tank screen that's plugged. I've been told that the top of the tank would need to be cut open and the plastic well replaced.
The only place in the DC area that repairs gas tanks wants up to $600 and I don't know how good they are. Considering the PO ckaimed he had the tank repaired locally before Mike bought the car.
So before Mike invests in a $600 tank repair job, or a tracks down a couple leads on 'good' used tanks, I'm fitting a 6-gallon outboard-motor tank in his trunk and running a hose to the electric pump to see if the problem is in the tank, or there's more trouble with the fuel-injection system. There's a possibility that crap got sucked into the fuel injection since I discovered the fuel filter had been installed with both gaskets on the bottom and none on top!
I actually hooked up the outboard tank a couple weeks ago and the car seemed to run better sitting in the driveway, but we weren't able to drive it around with the outboard tank loose in the trunk.
My question is - how important is the fuel return line. My outboard tank has no fitting for a fuel-return line, and I didn't want the fuel system pumping gas from the outboard tank to the car's gas tank, so I simply plugged it during the test. For the re-test, I'm willing to secure the outboard tank and add another fitting for the fuel return if someone here thinks the return is critical for testing.
The situation is also complicated now by a buyer that wants to buy this car as-is, so we need to decide if it's only the tank or there's another can-o-worms looming!
Thanks in advance.
Happy Motoring, Mark