Engine - Oil Leaks/Squealing Noise

91nissan02

Classification: EM91-002

Section: Engine Mech.

Reference: TECHNICAL BULLETIN NTB91-027

TECHNICAL BULLETIN NTB91-027


Models: 1990 300ZX

Date: March 21, 1991


1990 300ZX AUTO TENSIONER OIL LEAKS OR NOISE


APPLIED MODEL: 1990 300ZX(Z32)

APPLIED VIN: JN1RZ24A(*)LX015333 (August 5, 1989)
JN1RZ26A(*)LX005317 (August 9, 1989)
JN1CZ24A(*)LX000960 (August 31,1989)

APPLIED ENGINE # : VG30-524804 (August 4, 1989)


SERVICE INFORMATION

On some 1990 300ZX vehicles, customers may complain of oil leaks, lack of timing belt tension, or a noise (high pitch or squeal) coming from the front of the engine.

To improve the durability of the auto tensioner, several design changes have been made:

Figure 1:

^ The material for the oil seal has been changed to a fluorine-type resin compound to prevent oil leakage.
^ The oil passage for the auto tensioner has been relocated (Figure 1).


^ The clearance between the body and the piston has been reduced.


PARTS INFORMATION


Part Name Countermeasure Part # Former Part #

Tensioner Ass'y-Belt 13070-45V03 13070-45V01


WARRANTY INFORMATION

CS PNC CT OP CODE FLAT RATE
4B or 4R 16805 40 AF12AA 4.5 hours