selmerfudd Thank you , very helpful - all screw nomenclature is universal and standard even here in the great white north
The reason I asked was that, is not necessarily true. For instance, in the UK it’s not common to buy screws with a thread of say ⅛ in or ¼ in. But for equipment made in the US, it is a very common screw and believe it or not at times I have actually purchased from Amazon as UK engineering suppliers do not always stock this. Similarly in the US some metric nuts and bolts, especially the fine thread variety, are not common and difficult to source. I have no clue about Canada.
Anyway, if you use a good quality PH2 screwdriver from a company such as wera You will be able remove and refit that screw for the rest of your life. I suggest purchasing one if you do not own good quality toolkit. Also for this task I would recommend a stubby ph2 screwdriver.
The mistake most people make is using low quality screwdrivers or screwdrivers with the wrong bit size and / or shape. Ph and Pz are easily confused and can lead to the issue. One grinder I have actually needs a No2 Ph Sl bit to get a perfect fit, not common in the UK.
It may not appear to be true, but a screwdriver is one of those tools worth buying Good quality, which is often overlooked “because it’s only a screwdriver”
selmerfudd But Adrian did anyone ask you in a derogatory tone , why you drilled an extra hole in the piston?
As for my 2nd hole in my cylinder liner (please don’t drill a hole in the piston, that would not end well) 🤔🤪 I made it very clear that it was my experiment, not authorised by ACS and clearly stated why I did it.
I also explained It was not something I was recommending anyone else did and gave warnings about using equipment such as you describe above that you have and use, as it is not suitable and could actually be dangerous. It is not like drilling aluminium, mile steel, wood or bricks!!
😵 ….. 🚑 …. And could easily end up in a hospital visit, Say he who has just had 3 months recuperating from having a plate attached to his his tibial plateau after falling while basically walking across a grass bank!!!
….. And another warning!!
As you are already looking, what cleaning is necessary, I would warn against excessive use of chemical backflushing.
I am not saying you are doing, will do or have done 🙃
I have just seen comments in a lot of posts by people coming from consumer level machines that believe it is a daily or weekly test that must be adhered to
I’m just suggesting that doing it too often is actually worse than not doing it at all
As usual, that is my opinion and would welcome any feedback from anyone as to how often they feel it is necessary to do anything regarding chemical backflushing using products such as cafiza etc
When I changed my cylinder sleeve and piston this week, I can honestly say other than the occasional clean water backflush I have never done any chemical cleaning on the Evo. 2
And due to circumstances other than making coffee daily as ever it has had very little TLC over the last 15 weeks
The next statement is not going to be one that describes the horrific mess That I found inside the machine.
Just the opposite in fact and would lead me to suggest anyone who wants to do chemical back flush should do so as an absolute maximum monthly.
Just for comparison, I make around 6 shots per day on average up to say 12 maximum per day.
P.S I know nothing about Golf or golf clubs 🤠
