Thanks, Ken. I thought maybe I change the gear box when I would need a new clutch. I'm not sure if I wanted it now, as it would be some investment for the future. My gear box has only one drain plug, others in the MK 1 had two of them.
@ AndersDK
So, you think, the filter plus housing is an original part?
Well, as I said, I had the impression, too. But why shows my owner's manual only the Purflux and the later Bosch filter? Because the Leader was cheap and so the owner's manual?
And why isn't there any priming device at all? Is it why the Leader was the absolute low-cost model?
@ sleepy0905
Thanks. I will think about it.
@ DavidRutherford
"you can just ask a motor factor for a fuel filter for a 1985/6 BX D with bosch-type filter head"
Thinking about the trouble I got recently only getting an simple air filter for our Renault 19 from all those motor spares specialists around here, I'll see how much effort it costs to get the replacement for the Motorcraft filter, and then I'll decide what to do.
For your Mk 1 Diesel let us know when the time has come, even if you seem to live almost at the other end of England.