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Capri306 · 08-04-2001, 04:16 PM

First be sure you have a whole, fresh 5 quarts of 10W-30 or 10W-40 in there. Are you going by the gauge on the dash or a real one? How much pressure loss are we talking about? 5-8 pounds isn't that bad, but 15-20 is. It might also depend on the viscosity of the oil you're using. 10W-30 is almost getting too thin at op-temp for my tired ol' 5.0

If the clearances on the bottom end you "dropped in" were a little loose, that would explain a lot. I always triple-check bearing clearances before installing anything; it doesn't matter who built it since anyone can make a mistake.

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Capri306, Moderator, The Mustang Works Online
1979 Mercury Capri, 5.0L -- C4 -- 2.73
1987 Mustang LX Notch

08-04-2001, 04:16 PM	#2
Capri306 Moderator Join Date: Sep 1998 Location: Grand Rapids, Michigan, USA Posts: 1,001	First be sure you have a whole, fresh 5 quarts of 10W-30 or 10W-40 in there. Are you going by the gauge on the dash or a real one? How much pressure loss are we talking about? 5-8 pounds isn't that bad, but 15-20 is. It might also depend on the viscosity of the oil you're using. 10W-30 is almost getting too thin at op-temp for my tired ol' 5.0 If the clearances on the bottom end you "dropped in" were a little loose, that would explain a lot. I always triple-check bearing clearances before installing anything; it doesn't matter who built it since anyone can make a mistake. ------------------ Capri306, Moderator, The Mustang Works Online 1979 Mercury Capri, 5.0L -- C4 -- 2.73 1987 Mustang LX Notch