The 1985-1992 Nissan Maxima DIY repair and service manual by Haynes, covers sedan and station wagon models.
Like all Haynes manuals, it gives the do-it-youself car owner, the information necessary to properly maintain and service the vehicle. It also gives the required steps to conduct repair when the need arises.
Note: This manual does not include information specific to the VE30DE engine.
Book Excerpt: 1985-1992 Nissan Maxima Repair Manual
Nissan Maxima models are available in 4-door sedan and station wagon body styles.
GENERAL ENGINE OVERHAUL PROCEDURES
The transversely mounted V6 engine used in these models is equipped with electronic fuel injection.
The engine drives the front wheels through either a 5-speed manual or 4-speed automatic transaxle via independent driveaxles.
Independent suspension, featuring coil spring/strut damper units, is used on all four wheels. The power assisted rack and pinion steering unit is mounted behind the engine.
The brakes are disc at the front with either drum or discs at the rear, depending on model, with power assist standard.
MAIN AND CONNECTING ROD BEARINGS | INSPECTION AND MAIN BEARING SELECTION
INSPECTION (Refer to illustration 19.1)
- Even though the main and connecting rod bearings should be replaced with new ones during the engine overhaul, the old bearings should be retained for close examination, as they may reveal valuable information about the condition of the engine (see illustration).
- Bearing failure occurs because of lack of lubrication, the presence of dirt or other foreign particles, overloading the engine and corrosion.
Regardless of the cause of bearing failure, it must be corrected before the engine is reassembled to prevent it from happening again.
- When examining the bearings, remove them from the engine block, the main bearing caps, the connecting rods and the rod caps and lay them out on a clean surface in the same general position as their location in the engine.
This will enable you to match any bearing problems with the corresponding crankshaft journal.
- Dirt and other foreign particles get into the engine in a variety of ways. It may be left in the engine during assembly, or it may pass through filters or the PCV system. It may get into the oil, and from there into the bearings.
Metal chips from machining operations and normal engine wear are often present. Abrasives are sometimes left in engine components after reconditioning, especially when parts are not thoroughly cleaned using the proper cleaning methods.
Whatever the source, these foreign objects often end up embedded in the soft bearing material and are easily recognized. Large particles will not embed in the bearing and will score or gouge the bearing and journal.
The best prevention for this cause of bearing failure is to clean all parts thoroughly and keep everything spotlessly clean during engine assembly. Frequent and regular engine oil and filter changes are also recommended.
Subject: 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992 Nissan Maxima
service, maintenance, repair. ISBN-10: 1563923653 | ISBN-13: 9781563923654 | Haynes 72020