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390 fe 1963 ford thunderbird4/4/2024 Obviously this is not good for the engine. I turned the engine off, checked the oil level, drove away and everything was fine, again after a 1/2 mile or so on a local road. Earlier this evening I stopped after the ramp, lifers noisy, dash oil pressure gauge reading very low, I opened the hood and checked the under hood gauge- it was hovering near the bottom. This has happened more than once, but things get back to normal within 1/2 mile or so on local roads. The engine temperature (monitored digitally) gets up to 200F and when I pull off the ramp and idle at the end I lose oil pressure and the lifters make a racket. At 70mph the engine turns about 2600 rpm. My problem occurs after fast highway runs. After a break-in oil I've exclusively used Mobile One. I installed a mechanical gauge under the hood to help me "calibrate" my OE dash unit. Oil pressure for hot idle is about 10psi, a little low but still well above the 10/1000 rpm minimum. Engine now runs fine, no oil burning, and the lifters generally run fine. He pulled the engine apart and inspected the machining- all perfect. (It's a small town and they know each other but there is great respect between them so it's not that kind of issue.) 10W-30 oil, high pressure instead of high volume pump, and back to a 5 quart pan. I hired Builder #2 and he had a different set of recommendations. Also the rings did not seat and I was leaving a white cloud behind me at the rate of a quart/ 200 miles. Oil pressure was wonderfully high but I had repetitive lifter issues and went through 3 sets of lifters that would not pump up. Additionally, Builder 1 streamlined the block oil galleries, and recommended 15W-50 oil and an 8 qt pan. We went with the High Volume pump and top-end restrictors per Barry's recommendations. The engine mods include full roller components including a hydraulic roller cam and lifter. I'd like to share my experiences with oiling modifications and hopefully get some good feedback along the way.įirst off, I've read Barry Rabotnik's book, specifically the chapter on oiling modifications and discussed this with a reputable engine builder locally, who then did the mods as part of a complete rebuild.
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