Quote:
Originally Posted by 350SL4spd
See anything wrong in the is picture? 
Where'd my expansion tank go? I pulled my fuel tank to change the tank filter & found no expansion tank there at all.  Any chance that the early R107's didn't have one? 
Any potential trouble from a lack of expansion tank? Any dangers? Do I need to get one? |
If that is an early Euro model, I suppose there is a chance that they didn't have them back then? Where does the vent go? Looks like it goes through trunk floor to under car? Does it then connect to anything?
I looked on Russian parts site - the fuel tank design has been changed many times.
I have an old parts book. On page 47/2, it shows a tank with no expansion tank. The vent goes straight from the top of tank to a canister in the engine bay, via an under car valve. On Page 47/4 it has a similar diagram, but with an expansion tank. But the early cars don't have those canisters, do they?
Then, on Page 47.1 11-700/5 of engine manual it again shows a tank without an expansion tank. It says later that models 107.02 and 116 have an expansion tank
integrated into the actual tank. But then this isn't a 107.02 is it. But maybe someone changed the tank?
On page 706/1 it says that for the 107.043, starting Sept 1971 chassis 0003443, an expansion tank with 5 connections was fitted. Prior to that the expansion tank had 3 connections. This seems to say that even early cars did have an expansion tank, but one with 3 connections.
So depending on chassis number, you may need either a 3 or 5 connector expansion tank.
One more little mystery....