Ok, so an update. I went out to Diepriver to go and look at a scrap 78 633csi. Was so sad seeing that car like that, but its parts will be put to good use!
I bought the clutch master cylinder from the guy at the yard,but to my surprise,when checking the car this evening,I discovered that the slave cylinder is missing as well.
As you can see in the peeture,it is missing,having left a nice clean mark where it SHOULD have been. It is my understanding that a best practice is to replace both anyway,and although I wasn't intending that,well I guess I am going to have to now. The used cylinder seemed fine as when I was at the scrap yard there was good pressure on the clutch pedal and it was extended correctly,so that's good news.
As you can see in the pic below,the slave cylinder is obviously missing,so basically the car needs a whole new hydraulic system for the clutch. I am just hoping there is no damage in that bell housing. I also came across quite a substantial leak from the bell housing just after the clutch towards the engine. I am suspecting the seals may need replacing. Hopefully that doesn't require the engine coming out!
I also took the remnants of the exhaust off except for the branches, so the front boxes and the rear box are now off the car. Need to get the part numbers off as I really want to replace it with an OEM system from BMW,which I will piece together if necessary. I also discovered that the front mounting brackets for the bumper are loose,so I am going to pull the bumper off altogether to realign and then put the front bumper back on.
The bottom of the block and the transmission are completely filthy,so a complete engine removal is on the cards as soon as I can find a workshop where I can do that. I think the car is probably about 75% ready for the road,I am going to need to pull the discs and calipers out to clean them up and bleed the system of the old fluid and replace with nice clean fluid. I am also finding hoses missing from places, so I am going to take some pics and then post them and we can play find the hose attachments....:roflol:
So lots of progress,just not as much as I was hoping for!