Well here's one guaranteed to get those few remaining hairs away from their lifetimes residence with Dave Winsor.
Back in the mid eighties and CR and Management systems are starting coming our way and it's all relatively new stuff after being in the trade ( at that point ) some 25 years plus for me.
As I have said before it's almost back to square one here, CR and electronic management systems etc etc to be learnt.
Park up the bearing scraper, the flogging spanners etc and reach for the oscilloscope and FCR and all the new out diagnostic equipment ( out in many, many forms )
First major problem encountered, engine runs fine for weeks then goes down to Limpo then cuts out.
Quizzing the operators ( most important to build up a picture with this new fangled diagnostic subject ) we are told leave it for a couple of hours then it starts and runs once again for several weeks, no probs. at all.
Been on several courses in the early days but note from the instructors that they too have problems taking it all on board re several issues.
It seems to be a case of " suck it and see " with some aspects of diagnosis and that only time spent gathering more experience in this new field and swopping it with others will foward our knowledge in this field.
So back to the problem child engine, go through every test sequence possible a hundred times involving several different engineers, employ the substitution method ( where possible as some components can, at that stage back then can only only be programmed by the manufactures ) and eventually and regretfully have to admit defeat on this one and call in the manufactures.
Now is my first very important lesson in learning about all this CR stuff is that they too are struggling and cannot crack it despite it was their firm who designed it, built it and possibly installed it.
Now this makes me and my workmates feel a whole lot better as I now realise that we are far from being on our own learning curve concerning this new fangled CR subject and as such in doing my new " apprenticeship " in this field I am now introduced big time to the substitution method.
The makers decide " we will try a new set of injectors "
This costs thousands of pounds on a " maybe " situation and certainly not a decision that I would wish to undertake financially for fear of me having to stump up the money in the case scenario of it not being the cure.
Weeks later and guess what?
It wasn't the cure.
Back comes the makers several times and other parts re tested and checked out, new ECU and more unnecessary parts fitted, alas to no avail.
So the conclusion is arrived at that each and every component/ sensor/ actuator etc etc has tested ok, so what on earth can it be?
Now we learn that other exact engine installations fitted with this management system are displaying similar symptoms causing excessive downtime and crews wages etc and yet no one ( including the makers ) can crack this one.
What an introduction to CR I am thinking.
About a year plus later we are told that a " modification " has to be carried out to this system and part no XYZ 1234 has to be fitted to this installation.
This, we are assured will cure this problem that has now be going on for over a year.
At this point I am going to stick my neck out and state that unless this has ever happened to you personally you will never, ever guess what part no XYZ1234 is and where it's new home is on the engine.
It did amazingly prove to be the cure when done.
So the conclusion is arrived at by all concerned " they don't know either so how the hell are we supposed to sort it ?"
Gives your confidence factor a major, major boost here but alas already some good engineers have already decided that the CR stuff is not for them and state they do not wish to go on any further courses concerning same.
Unlike my Liner question this is NOT a trick question but considering the excessive downtime laid alongside ( picture a single screw situation here- nightmare ) wages and tens of thousands of pounds lost in revenue and unnecessary parts what part no XYZ1234 is ( unless you have encountered this situation ) you will never guess in a million years.
So Dave's Kojak impersonation could well be achieved by night fall next weekend?
Or will someone else crack this one?
Remembering The Good Old days, when Chiefs stood watches and all Torque settings were F.T.