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Original Message
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| FE Oil System ARGH! |
| By Eric - 08/13/2003 11:27:04 AM; IP 12.135.231.228 |
I have enjoyed all the wisdom available on the variuos FE forums. I have a cronic low oil pressure problem on a fresh 352 rebuild. Main and rod clearance is .001 to .0015. I'm running 10-40w and a melling HV pump. In the morning, about 60DEGF, I get 60 PSI at 1,000 RPM. Has the engine heats up, idle pressure drops to 5 PSI. Here are the readings at 185DEGF engine temp. Idle 5 PSI, 1000RPM 10PSI, 1500 18PSI, 2000 28PSI, 2500 39PSI, 4000RPM 50PSI. All readings from a calibrated guage.
Rocker shafts are remanufactured. At idle, the shafts are dripping oil but not "running" oil. At idle, I get an occasional oil light. The engine runs good and there is no valve train noise. Melling tech support advises they suspect engine clearance issues. The original brake-in went bad as a had a cam lobe go flat. On teardown, I found cam bearing #3 totally destroyed. I tore down the engine, cleaned it and installed new bearings, using the poper tools. The new cam turned freely. When the second cam broke in, I had 80PSI, at 3500RPM, at first. As the engine warmed up, pressure dropped.
I suspect that #3 cam bearing is bad again. What are the chances of misalignment? What other problems could be causing bearing failure?
I need to get back on to my twin turbo Mustang Fastback project so I'm thinking about using 20-50W and forgetting about this for a while. The truck is a ranch truck with occasional use. This FE has taken way to much time. I could have rebuilt three SBF fords in the time I spent on this truck engine. What a pain! |
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