Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum - View Single Post - Assembly Lube, worth the extra $?
View Single Post
Old 03-22-2012, 03:39 AM   #17
Focus Fanatic
Join Date: Mar 2012
Fan#: 96610
Location: Fort Worth, TX
What I Drive: 00 wagon, 02 sedan both zetec atx

Posts: 8,265
Points 4,852, Level 44
Points: 4,852, Level: 44 Points: 4,852, Level: 44 Points: 4,852, Level: 44
Level Up 51% Completed
Level up: 51% Level up: 51% Level up: 51%
Forum Activity 82%
Activity: 82% Activity: 82% Activity: 82%
FF Reputation: 48 amc49 Great Standing Member
Buy-Sell-Trade Rating: (0)
Looking back over thread I see an error. You NEVER let a brand new motor idle! Bring it up to say 2500 rpm and leave it there for at least 20 minutes. A lot of camshaft lubing is by splash only and idle is too damn slow for that. If your engine building skills are in order the most failure prone part of a new engine is the camshaft lobe to tappet interface............I have seen more cam failures than I care to count simply because someone let it idle before cam wore in right. It's almost certain death with bigger flat tappet cams. We would pull 2 of the 3 springs out of spring stack and break in cam with just one spring, then assemble the other 2 back after the 2500 rpm 20 min. run. That to prevent cams going flat with say .650" lift. That's whopping huge for a flat tappet cam.
amc49 is offline  
    Reply With Quote