Today I decided to fix the coolant leak, that has been getting steadily worse.
I used my endoscope to check the hidden seal on the top hose joint. Sure enough, the seal was leaking. So I ordered one of these
I stripped off the inlet manifold inlet manifold to gain access to the pipe.
When I removed the top hose stub, the reason for the leak became obvious
So I had found the cause of the trouble.
While the engine was stripped. I took the opportunity to change the oil, oil filter, air filter and crankcase filter too.
I also fitted the Rover Ron recommended Peirburg MAF and set my Synergy to compensate for the MAF.
I also changed the fuel rail pressure regulator O ring while it was easy to get at. Interestingly I found a small piece of plastic bag inder the seal.
The Peirburg MAF has transformed the engine and having fresh oil has made it quieter too.
So in all a worthwhile day. I'm looking forward to not topping up the coolant every day too.