Re: Tight Bearings
One thousand clearance isn't enough for my use . I polish the journals with fine journal sand paper to remove any babbit residue before adjusting . I set my rod and main bearings at twio thousants clearance . There needs to be enough clearance for an oil film to cushion the babbit and prevent as much metal to metal contact as possible and two thousand isn't really that much . Some believe that a real tight engine will be like new and last longer . Heat causes expansion and Friction causes quicker wear . I've never seen a too tight engine last very long or go very fast . I'm not a professional engine rebuilder but I overhaul my own engines with good success over the years .
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