So you're 50 year old tech engine takes 10 seconds ? Great. My COYOTE is instant.
Just stating the facts. But I don't care what your gauge reads when cranking all wet sump oil systems DO NOT have instant oil pressure to all the bearings after sitting. And after an oil change it does take some time to get the oil pump primed again. It's just the facts.
K.. so what's the facts ? 1 second ? .1 second ? 17 seconds ? You floor it right after it fires up ?
Have you ever built an engine and before start up you prime the oil pump with a drill to spin the pump? How long does it take to get resistance on the drill? Believe me it takes some time. I never put a stop watch on it so I would not be able to give you an exact time. But it does take at least 15 to 20 seconds.K.. so what's the facts ? 1 second ? .1 second ? 17 seconds ? You floor it right after it fires up ?
K you keep going back to this. Those are gear pumps, usually run off the cam which is going 1/2 the crank speed. Totally different than the crank driven gear-rotor pumps in the Coyote, which ironically, run at crank speed.
Either way, regardless of what is driving the oil pump, nothing is instantaneous. It may take 2-4 seconds, or may take 10-15 seconds. There is not an oil system in the world that provides oil to every bearing and friction surface instantaneously. But I will say the crank driven pumps are way faster than cam driven ones.
Luckily that doesn't really matter at all, oil clings to every surface in the engine so no startup is truly "dry". You can pre-fill the filter if you want but it doesn't really matter in the slightest, people have tried that before and it doesn't stop you from getting the tick or other noises if your car's going to do it. Some don't do it and you get lucky.
I agree that all of it is negligible, but as I said in my previous post my dealer mechanic told me that he has never had a car develop tick if he primed the oil filter. I don't think it would hurt to just do it anyway as its super easy to prime the filters on the coyotes. With something as weird and mysterious as some engines developing tick and some don't I would just aim on the safe side and take every step to try and prevent it.
I'd bet they know what it is, but don't want to really say. I think it has more to do with manufacturing tolerance stack-up on some engines vs other, and the friction level of the oil (why it can change with an oil change and/or Certec added). That's why not every Coyote has the BBQ tick.
I agree , of coarse they know. I ll bet there are 1 or 2 people here that know but with all the internet noise it s not being grasped by others.
We can hope.
