Join Date: Jul 2017
Location: Nobel Ontario Canada
Bullitt Year: 08
Bullitt Color: DHG
Bullitt Serialized Number: 4404
The Lubrication system, oils well that ends well.
Modern lubrication systems are a lot more complex than they were even 20 years ago. The lubrication system has many jobs; it reduces friction, it cools engine parts, it clean parts, provides hydraulic control of the camshaft timing, and removes and stores dirt and contaminants created while the engine is operating.
I will save how variable cam timing works for another thread. Ford was instrumental in developing VCT.
So how does the lubrication system operate? When the engine is started the oil pump creates suction and draws oil from the oil pan and pressurizes it for it's journey throughout the engine. The 19 Bullitt uses a "gerotor" pump which is hybrid gear/rotor, one inside the other, and the pressure is controlled by a pressure relief valve within the pump to control the maximum psi.
The oil then travels to the oil filter, where much of the oil is filtered, some bypassing the filter, and then heads to the crankshaft where it provides lubrication for the main and connecting rod bearings. These friction type bearings are literally running on a film of oil about .0015 of an inch. If the bearings go dry for some reason, there will soon be a window in the engine block. Oil slinging off the crankshaft lubricates the cylinder walls and may be augmented by piston squirters. (Not sure if Gen 3 has piston squirters?)
Meanwhile oil is travelling through the oil galleries up to the cylinder heads to lube the cams, rockers, timing chains and other valve and cam components. The oil returns to the oil pan, largely by gravity, where it joins the oil in the oil pan to continue the lubrication cycle.
When you start your cold engine it may take a few seconds for oil to circulate to all points necessary. In fact if it's really cold it could take as long as 30 seconds or more for oil to reach the top of the engine and all it's parts. It is very important to let your Bullit run for a little while before you move off. It's also very very important to let the oil warm up before you pull high RPM's. Over revving the engine when cold can overwhelm the oil pump and cause damage and may cause oil to by pass the filter. Some GT 350's have shattered the oil pumps.
So, warm it up before you giddy up. Next time, variable valve timing and the new cam torque actuation system in your new Bullit.
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In my defense, I was left unsupervised.