Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Bearing Trouble
Thread: Bearing Trouble
View Single Post
  #2 (permalink)  
Old 03-25-2011, 11:49 AM
cobalt327's Avatar
cobalt327 cobalt327 is offline
Last wiki edit: Intake manifold
Last journal entry: 1980 Malibu Wagon
Last photo:
Join Date: Mar 2009
Posts: 5,031
Wiki Edits: 1616

Thanks: 128
Thanked 616 Times in 565 Posts
Black w/chunks missing could have been caused by a lack of lubrication that caused the bearing surface to overheat and begin to weld itself to the crank journal. The lack of assembly lube might have played a part in this, as could a lack of pre lubing the engine by spinning the oil pump w/a drill prior to first start up.

The "record disc" feeling is likely caused by grit or metal shavings and particulates left from machining or insufficient cleaning.
Reply With Quote