Good Morning Art or on your time zone, a later one. (:)

You are an example of what I said in the ending of my post on the thread.
Your morning cup, of whatever your are having during the day, is brimming over with information for us Joe’s! (:)
You are our Rock Star!

The Rock Auto post was interesting too.
Any calipers can be swapped over and to be installed upside down must be really symmetrical.
You would think the mounting holes distances should have be shifted or something.
The reasoning behind bleed holes locations is going to be very vague to most people.
Same goes for all kinds of venting apparatus.
They are not there just to put something into a system conveniently. I.E. Master Cylinders, fuel tanks, radiators and other similar hydronic principled systems.
Even ice cubes are subjected to internal pressures under certain conditions.

I understand your procedure to jump the pumps and not cranking it to pressurize the rail.
But for many digging into a fuse panel is well beyond those who have no idea what happens past turning that key.
His sensing of a longer crank time eventually wakes up everyone to a different daytime reality.
If you hang out around some tire shops, while getting tires I hope, you might observe some ferociously worn out rotors. I did many years ago.
I saw at least two very deep rounding grooves that waved like an ocean swell while going across the surfaces.
Steel pads against cast iron is not a pretty sight let alone the sound they must have made? Either unbelievable.
I cannot imagine the lack of stopping power but it made it onto the lift with no injuries. No time to be in front of that car!

The idea of taking the plugs out after pressurization would create a nice aromatic atmosphere the next morning.
I’m not so sure that my nose would be so discerning to know which cylinder or injector though.
Maybe seeing a paper towel or plastic that was tied in front of the holes might help, if working alone.
For sure the smell of any one of them leaking that would be too much.

A draining injector can not be dismissed or the likelihood of calipers fitted upside down and backwards apparently.

I recently corrected my 24 space collet indexing fixture.
It was purchased long ago for very reasonably price new. That merchant is now out of business.
I think I found out why.

I had not used very much except on round stuff so it was fine.
When was slotting and pinning a piece of hex stock for a handle so I used a three jaw chuck adapter.
The flats of the part did not line up flat to my table top because something was crooked.
One chuck jaw did not Not zeroed out straight up and down.
I discovered that a keying pin for the locating the collets was drilled off center so threw off the collets to the index plate.
About .100 off center.
This amounted to a 4 degree 12 second error in relationship to all axis’s of the machine depending on how fixture was use.
In round work, say in bolt circles I had not noticed it. As long as any work done was “inclusive” to its rotational basis only no one would know, including me!
But alignment to other external planes or things aligned correctly to a standard that I expect to have.
So, I got a nice surprise!

It was nice to know though that my intuition or skills of many years of machining are still awake!
Abate, I have slowed down so much it takes me 30 minutes to do a ten minute job.
Don’t ask how it takes to do a post!

Phil