Interesting overview of the Cleveland oiling system

Ron Tanzi · Apr 6, 2022

This guy gives a pretty interesting analysis of the "Cleveland oiling problem". I have never heard this particular detail Re: crankshaft oil feed drilling discussed before. Or perhaps I forgot. If any of you have got a half an hour, check it out.

Ron

Stanglover · Apr 6, 2022

Will do........... as soon as I get a half hour!! Looks interesting. Thanks.

droptop73 · Apr 7, 2022

Very interesting! I watched that several months ago and watched it again this morning. It made much more sense the second time through.

machphil · Apr 8, 2022

Ron Tanzi said:
This guy gives a pretty interesting analysis of the "Cleveland oiling problem". I have never heard this particular detail Re: crankshaft oil feed drilling discussed before. Or perhaps I forgot. If any of you have got a half an hour, check it out.

Ron

Sometimes "INTERESTING" is killed by the delivery. Can someone replicate this with an energetic speaker that can keep my attention so I don't fall asleep? I just couldn't deal with his rambling. I could read a book on this subject and be more enthused. The oiling discussion has been around for years, and apparently this guy was there during the very first discussion.

Ron Tanzi · Apr 8, 2022

machphil said:
Sometimes "INTERESTING" is killed by the delivery. Can someone replicate this with an energetic speaker that can keep my attention so I don't fall asleep? I just couldn't deal with his rambling. I could read a book on this subject and be more enthused. The oiling discussion has been around for years, and apparently this guy was there during the very first discussion.

Yes, I agree. He needed to down a couple of Red bulls before he turned the camera on. I am really curious why Ford drilled the crankshaft the way they did.

Ron

machphil · Apr 9, 2022

Ron Tanzi said:
Yes, I agree. He needed to down a couple of Red bulls before he turned the camera on. I am really curious why Ford drilled the crankshaft the way they did.

Ron

Never had a Red Bull but if it works!!!!!!! I think most of the "Build your 351C" books address metering through drilled allen plugs and I've seen at least one route an auxiliary oil line from the rear outlet at the pressure sensor and running it back in the block.

DAverkamp · Apr 9, 2022

machphil said:
Sometimes "INTERESTING" is killed by the delivery. Can someone replicate this with an energetic speaker that can keep my attention so I don't fall asleep? I just couldn't deal with his rambling. I could read a book on this subject and be more enthused. The oiling discussion has been around for years, and apparently this guy was there during the very first discussion.

Ron Tanzi · Apr 9, 2022

machphil said:
Never had a Red Bull but if it works!!!!!!! I think most of the "Build your 351C" books address metering through drilled allen plugs and I've seen at least one route an auxiliary oil line from the rear outlet at the pressure sensor and running it back in the block.

According to the sleepy guy in the video and others (there is another video with a different guy) is that an auxiliary oil feed, lifter bore bushings and passage restrictors do not really address the actual issue. It appears as simple as using full groove main bearings on #2 and #4 mains.

Ron

Don C · Apr 9, 2022

Oiling problems with Clevelands have been discussed many times by different "experts". Here's another example
https://www.cartechbooks.com/blogs/techtips/351-cleveland-lubrication/

Duncan Mach72 · Apr 10, 2022

It does seem that this guy has pinpointed the actual problem that led to spun rod bearings ie the crank oil passages not delivering oil pressure to the rod at the right time in the stroke. It never occured to me & obviously a lot of other people that the oil supply was not a steady stream but rather in pulses as the crank rotates. Worn lifter bores would still need addressing however as they do leak badly on high mileage engines, Mine is patched with a hv pump & the front to rear line otherwise pressure plummets at low speed. If the engine comes out again I will add fully grooved mains at 2 & 4 as described, if I have spare money I will get the lifter bores bushed too.

Interesting overview of the Cleveland oiling system

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