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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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| | | | Joined: Nov 2022 Posts: 6 'Bolter | | 'Bolter Joined: Nov 2022 Posts: 6 | i have a 1950 chev 3100 with a 235 engine removed oil pan, then disconnected the oil pump used the oil pump to flush out the passages with acetone, for two weeks finally got oil going to head, as it cleaned out all oil sludge, and it sprays out quite nice. than i flushed it out with clean oil to remove the acetone, test oil pump pressure was good to 100 PSI. re installed pump and oil pan, filled with oil got 18 PSI for oil pressure when running but now only have very little going to head. only drops. any ideas why i only get drops going to head. | | | | | Joined: Feb 2004 Posts: 29,881 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,881 | If any oil at all is coming from the weep holes in the rocker arms, that's plenty. All that oil does is keep the rocker arms lubed as they sweep across the tips of the valve stems. Even a tiny seep is sufficient, as the oil flow will increase with the road speed. Spray-oiler engines with troughs in the oil pan and dippers on the rods rarely if ever have more than 20-25 pounds of oil pressure. What weight oil are you running?
Jerry
Last edited by Phak1; 04/09/2024 11:47 AM. Reason: Corrected spelling
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