Build Date Code; Engine Build Date Code Explanation; Component Letter Codes - Oversize/Undersize - Jeep 1987 Wrangler Workshop Manual

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ENGINES
IPS
2.46 LITER (150 CID) FOUR-CYLINDER ENGINE
iENERAL INFORMATION
Build Date Code
The engine Build Date Code is located on a
machined surface on the right side of the
cylinder block between the No. 3 and No. 4
cylinders.
The numbers of the code identify the YEAR,
MONTH and DAY in which the engine was built.
The fourth character code letter identifies the
cubic inch displacement, throttle body injection,
and compression ratio.
Engine Build Date Code Explanation
EXAMPLE: 709H28
1st
Character
(Year)
2nd and 3rd
Characters
(Month)
4th
Character*
(Engine Type)
5th and 6th
Characters
(Day)
7 - 1987
8 - 1988
01 - 12
H
01
-31
Letter
Code*
CID
Fuel Injection
Compression
Ratio
H
150
Renix TBI
9.2:1
The example code identifies a 2.46 liter (150
CID) engine with a throttle body injection, 9.2:1
compression ratio, and built on September 28,
1987.
60257B
NOTE: Engines built for sale in Georgia and
Tennessee have an additional, nonrepeating
number located on the right side of the engine
above the build date code .
Example:
Kenosha-Built
*E-1197277* or
*W-1207177*
BUILD
DATE
C O D E
83101A
Component Letter Codes - Oversize/Undersize
Some engines may be built with oversize or
undersize components such as:
• oversize cylinder bores,
• undersize crankshaft main bearing journals,
• undersize connecting rod journals or oversize
camshaft bearing bores.
B-; •39

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