Skoda 1.4 vrs 2013

I can never understand why the tensioner on modern vehicles don't have some form of ratchet on them. Even Minis from the sixties had a mechanism you had to use an Allen key to release them.

Perhaps that's a bit of a Rose tinted view, I remember swivels and drum brakes on mini's, rear sub frames etc
However modern vehicles are very sophisticated and long term it does not bode well for the customer.
Siemens quartz injectors on VW group 1.6 engines can spell the end of life as they age. Just one example of modern technology.

just don't rev it till the pressure is up, so it doesn't jump any teeth.

Someone at Blackburn college did that on a hybrid  didn’t power it down properly dropped the oil and went for his dinner he left the key in the vehicle and it started up with no oil in it and bolloxed the engine 

I've heard similar with the Ford Ranger that advice given said the engine oil had to be changed in no longer than 90 minutes! Going back to the 1970s I vaguely remember we had problems getting oil pressure up after oil changes on some cars of the day. 

I suppose I must ask then... If the oil change must be done quickly and not allow the oil to drain back while changing the oil, what then happens to the oil within the oil tensioner when left over night and somebody starts the car from cold the following morning?

I've never known any engine oil circulation system to be a primed/pressured constant system, therefore what people must now be experiencing is a hydraulics failure allowing oil pressure loss of some description not yet identified? 

maybe the tensioner is worn?

Timing chain rattles on the Fiat 903 cc  engine didn't  have a tensioner back in the day when I was on the YTS money on £ 27.50 first year  and £ 35.00 for the 2nd  OH  gaud I miss those days   when you could  could go out to a breakdown and get a car going armed with a screwdriver and hammer simple times