There is a plethora of misinformation regarding Oldsmobile oiling and oil restrictors on the internet. I created this video to educate and increase the understanding of the facts on Oldsmobile engine oiling systems. The second half of the video explores the facts on oil restriction and how it effects the engine oiling system. This information should help anyone understand Oldsmobile oiling and the results of using oil restrictors.
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Good video, complete explanation of oiling system. Mondello performance versions of these motors use very similar techniques to your suggestions.
Oldsmobile motors that run at 5000 RPM 5500 Max (peak, not sustained) typically don't ever have oiling issues, unless the drain backs get blocked (sludge), which is something that happens, especially if oil is not frequently changed. The oil drain backs being plugged doesn't allow oil back into the pan fast enough at high RPMs, then you have your bearing failure. Restricting oil flow to force it to the mains is only necessary on a racing version of the motor that's going to Rev close to or over 6,000 rpm, especially consistent high RPM. Anyone that's ever built an Oldsmobile knows they can put a considerable amount of power, if they have decent compression, without ever reviving past 5500.
I want to know the possibility of hooking up a clear 7/8 hose to the oil filter pipe and injecting oil through the hose and oil prime the engine without pulling the distributor ?
I just want to clarify that the metered orifice at the rear of the oil gallery is designed to eject foreign materials, not to oil the distributor gear. I misspoke in the video.
I have restrictors in my block at start up I have about 50 psi of oil pressure that’s being read from the top front of the engine at idle and warm up it drops to about 15 psi. Should I check the pressure from somewhere else or is that pressure reading okay? Thanks great video.
Super cool video! Thx bro.
thanks for your work buddy. helped alot
Great explanation Brother thanks for your time. Great video.
The oil drain back issues are from boat guys running high rpm for long periods. In a car a high volume pump with 8qt pan works fine for 1/4mile runs with no restrictors. And a standard pump with a factory pan is fine for the 1/4mile. Great video!!!
I cannot tell you how simple this made tracing the oil system out on the 455 that we are currently working on for my wife's jet boat she is doing the build herself and I'm trying to teach her everything and this video was very very helpful keep up the good work will be giving you a shout-out and our next engine build video
Is there extra olling holes in the block. How to hook them up?
Cool video. Do you have any opinions on the practice of installing cam bearings with the oil hole at the 3 o’ clock for restriction purposes?
What's considered high rpm?