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Original Message
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| 428 Oil Pressure Problem Almost Solved! |
| By John - 12/28/2000 8:32:42 PM; IP 142.177.108.59 |
Hi! Many of you may remember some postings about a month ago or so, where I was looking for input as to why my 428 FE suddenly started losing oil pressure, with nothing apparetly wrong...gauge checked out, no bearing debris in oil.....no obvious leaks or pump or pick-up problems, etc. I finally yanked the engine out yesterday and have found a stress crack in the inner lifter valley area, right above the lifter bores from the # 7 cylinder. Antifreeze may be able to seep through this crack into the lifter valley area and then into the oil...a pressure check will reveal this eventually. The crack is about 1.5 inches long, parralel with the crank axis, and I can catch my nail on the crack. Now...here's the QUIZ...any bets on which of the following I will eventually find?
1/ other stress cracks through to a oil gallery? or
2/ slight leakage of antifreeze into oil stripped the main bearings? (I never noticed any anti-freeze in the oil...but that doesn't mean there wasn't any)
I will post my findings as soon as I finish stripping the engine down...in about a week. Right now it takes anout 2 hours to heat up my garage in winter, so I mostly work weekends only...by the time it's warmed up in the evening, it's time to pack theings up for the night. As long as I'm back on the road by April, I don't mind the delay...but the curiosity is killing me. Any guesses? |
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This thread, so far...
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