Frontier XE 4WD L4-2.4L (KA24DE) (1998)
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Technical Service Bulletin # 98-094
Date: 981115
Engine - Timing Chain/Front Cover Revised Procedure
Classification:
EM98-006
Reference:
NTB98-094
Date:
November 15, 1998
FRONTIER TIMING CHAIN/FRONT COVER REVISED SERVICE PROCEDURE
APPLIED ENGINE:
KA24DE
PARTS INFORMATION
CLAIMS INFORMATION
Please reference the "Revision B" pages of the Nissan "1992-1999 Warranty Flat Rate Information Manual", Section "AG", Op Codes AG14AA,
AG143A, AG144A, AG22AA, and AG24AA. You will note that the descriptions and Flat Rate Times applicable to the D22 vehicle for these Op Codes
have been revised to reflect this new procedure. Also note that Op Codes AG5OAA and AG504A have been deleted.
Service Information
A revised service procedure for the engine front cover/timing chain has been adopted for the KA24DE. It is no longer recommended to remove the
cylinder head when removing the timing chain/front cover(s). Utilize the following steps when servicing the front cover, timing chain, guides or
tensioner(s).
Caution
^
After removing the timing chain, do not turn the crankshaft and camshaft separately or the valves will strike the piston heads.
^
When installing chain tensioners or other sliding parts, lubricate contacting surfaces with new engine oil.
^
Apply new engine oil to bolt threads and seat surfaces when installing the camshaft sprockets and the crankshaft pulley.
^
Do not spill engine coolant on the drive belts.
^
Please refer to the Service Manual for the correct tightening torque.
Removal of Upper Timing Chain
1.
Remove the air cleaner assembly,
2.
Remove the spark plug wires.
3.
Set # 1 piston at TDC on its compression stroke.
4.
Remove vacuum hoses, electrical harness, connectors, and harness clamps.
5.
Remove the power steering belt.
6.
Remove the power steering pump and position it to the side. Remove the idler pulley and bracket as well.
7.
Remove the rocker cover.
8.
Remove camshaft sprocket cover.
