My great Service Manager called to say my Y78 recall CP4.2 replacement parts will be here tomorrow. Taking the truck in tomorrow, he needs to record the engine number and will make an appointment for the change out.
A friend of mine used to fly FB111s terrain following high speed aircraft. He used to use all his senses to train himself to hear and feel his aircraft along with all the sensor readings and indicators. I do the same thing... I can FEEL and HEAR my equipment and tires. Not to say you won't be sailing away just fine and hear it fail, but a slight piece of metal taking out or reducing function of one injector, if this can be discernable to an attentive and trained operator, could avoid or minimize a catastrophic event.I have a friend who had similar symptoms on his VP44 ( I use to have one) and a few months later the VP44 ate itself. My issues are very slight and most don't even notice but I was a navy propulsion engineer and any change in the equipment no matter how subtle alerts my senses. I could tell when something was going to fail on a running LM2500 when others were saying all indications were fine. So any slight change I pick up on. Most machines will give a hint to the trained ear and hand of pending failure if they know what to look for. Now in my case it could be nothing but it could be something. Maybe I am over sensitive with all this CP4 talk but then again, maybe not.
Not sure, but I think they are the same.Nothing for the 19 yet, even though it says parts available on the ram recall page. Sag what’s the difference in the kit between the 19+20?
No idea, I would guess nothing. Until they release it for the 19's we won't know.Nothing for the 19 yet, even though it says parts available on the ram recall page. Sag what’s the difference in the kit between the 19+20?
Nothing for the 19 yet, even though it says parts available on the ram recall page. Sag what’s the difference in the kit between the 19+20?
It's now being said the parts are the same, and the problem is the software. They have the software for the 2020s but not yet for the 2019s. That's the current rumor.Not sure, but I think they are the same.
My thinking is the cost to fix a failure is so high, they want to fix as many as possible before they fail. Thinking, the 2019s have had their pandemic of failures. So, start with the 2020s because they have the highest potential for more failures.
A friend of mine used to fly FB111s terrain following high speed aircraft. He used to use all his senses to train himself to hear and feel his aircraft along with all the sensor readings and indicators. I do the same thing... I can FEEL and HEAR my equipment and tires. Not to say you won't be sailing away just fine and hear it fail, but a slight piece of metal taking out or reducing function of one injector, if this can be discernable to an attentive and trained operator, could avoid or minimize a catastrophic event.
EDIT, very occasionally, usually cruising one of my vehicles, I'll crank a really good song, bu most of the time it's playing below the sound of my rig.
I like this thinking process.
My friend, what you just described is now called a Thermobaric weapon!Output of the pump is up around 30k psi, not a lot of components let alone filters for that pressure.
The design of the CP routes lube and cooling fuel back thru the same galleries that feed the rail side for safety reasons. If case pressure exceeds 250 psi it close in coming fuel and use cooling\lube fuel to feed the rail. If the pistons break or case cracks or something happens the high pressure fuel is not routed back thru the tank thru lines not meant for pressure. That stops a failure in the pump from blowing return lines and tanks spreading diesel everywhere that could easily ignite. Imagine a fog of diesel fuel from broken lines hitting a hot CAT or the pump seizing and spitting hot metal out into a fuel fog. Be like stacking fireworks on ammonium nitrate and a the fireworks catching fire, BIG boom potential.
Downside is contaminated fuel from poorly designed or bad metallurgy ends up in the downstream fuel system. The kits segregate the fuel in the case so return always goes back to the tank and fresh fuel is routed to the rail supply side, they do not mix in the pump. Also disables the case overpressure failsafe.