M42: Accidently removed Timing Chain Tensioner!

[montrealblue7]

Hi,
Car: BMW Compact 318ti (E36)
Year: 1995
Engine: M42

Would really appreciate some engine saving advice on this issue;

When trying to flush the engine block of old coolant on a BMW 318ti Compact (M42). t, I fully loosened a 19mm plug on the front left hand side of the engine (thinking that this was the Cylinder block coolant drain plug).

Instead of coolant coming out, I accidently removed the Timing Chain Tensioner .

Realising I made a mistake, I quickly tightened 19mm bolt to push the tensioner back in.

The engine has not been started since then, but not having much experience with BMW engines, I am really worried about this and whether I have damaged something.

I would really welcome some advice on what to do next, and answers to the questions below;

1) By pushing the Timing Chain Tensioner (TCT) back in, could have I damaged the engine/timing chain or upset the timing ?

2) How do I go about reinstalling the TCT ?
Does the timing case cover have to be removed, to resinstall the TCT ?

3) Does anyone accurately know the Torque setting for the 19mm TCT plug ?

4) Where is the engine coolant drain plug on an M42 engine ?

Thanks.