Usage:
CONFIDENTIAL TIBU4556-00
TECHNICAL INFORMATION BULLETIN |
June 15, 2005 |
PRODUCT FAMILY(S) |
C15 (6NZ2440-96172) C15 (MBN21722-32813) C15 (BXS415-25221) C15 (MXS300-315) |
Component Code 1306 |
SUBJECT: Oil Filter Leaks on the C15 On-Highway Engines
PROBLEM:
Caterpillar Dealers have been reporting oil filter leaks at the head. Two Root Causes have been identified as the reasons for the leaks. First, it has been determined that there is a sealing issue at the oil filter head. There are two scalloped/draft areas on the oil filter base that are digging and/or cutting the seal when filter is over tightened, causing the leaks. Second, the casting has been known to have minor porosity between an oil passage and a bolthole used for remote mount oil lines, which has been observed to be a second cause of oil leaks. The leaks are causing a minor loss of lubrication oil.