Need help decoding block numbers for timing chain kit
#1
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Year: 1999
Model: Cherokee
Engine: 4.0
Need help decoding block numbers for timing chain kit
I keep finding mixed things about the meaning of this block code. Just about the only thing I have been able to figure is that it was manufactured in September of 1962.
409MXI2
I need to install a timing chain kit and am not sure which to get.
Any help would be greatly appreciated!
409MXI2
I need to install a timing chain kit and am not sure which to get.
Any help would be greatly appreciated!
#2
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
4.0 Engine date codes
The date code is on the passenger side of the engine, on the block, just forward and up from the distributor on a machined flat surface.
The digits of the code identify:
1st Digit-The year (8 = 1998).
2nd & 3rd Digits-The month (01 - 12).
4th & 5th Digits-The engine type/fuel system/compression ratio (MX = A 4.0 Liter (242 CID) 8.7:1 compression ratio engine with a multi-point fuel injection system).
6th & 7th Digits-The day of engine build (01 - 31).
1. FOR EXAMPLE: Code * 801MX12 * identifies a 4.0 Liter (242 CID) engine with a multi-point fuel injection system, 8.7:1 compression ratio and built on January 12, 1998.
The date code is on the passenger side of the engine, on the block, just forward and up from the distributor on a machined flat surface.
The digits of the code identify:
1st Digit-The year (8 = 1998).
2nd & 3rd Digits-The month (01 - 12).
4th & 5th Digits-The engine type/fuel system/compression ratio (MX = A 4.0 Liter (242 CID) 8.7:1 compression ratio engine with a multi-point fuel injection system).
6th & 7th Digits-The day of engine build (01 - 31).
1. FOR EXAMPLE: Code * 801MX12 * identifies a 4.0 Liter (242 CID) engine with a multi-point fuel injection system, 8.7:1 compression ratio and built on January 12, 1998.
#5
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Year: 2000
Model: Cherokee
Engine: 4.0L
Remember to replace the tensioner/damper that sits in the timing cover too.
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