Parts for your 1993 Nissan Primera-Thrust bearing

1993 Nissan Primera thrust-bearing — what it is, and how to look after it

Based on the Nissan Primera P10 Factory Service Manual (1990–1995, sections CL and EM), the Haynes Nissan Primera 1990–1999 Manual, and common clutch kit catalogues from OE suppliers like Exedy (which list a release/thrust bearing with the P10 clutch kit), the 1993 Nissan Primera does use thrust-bearings. There are two relevant types: the clutch release (thrust) bearing in manual-transmission models and the engine’s crankshaft thrust bearings that control end-float. So yes — a thrust-bearing is fitted and relevant to this vehicle.

On a manual 1993 Primera, the clutch release bearing sits on the gearbox input shaft sleeve and pushes on the pressure plate’s diaphragm when the clutch pedal’s pressed. Its job is to let the rotating clutch assembly be disengaged smoothly while the hydraulic system and fork apply axial load. When it wears, you’ll often hear a whirring, chirp, or growl with the pedal depressed, feel a rough pedal, or notice notchy engagement. Because it lives a tough life, it’s standard practice to replace the release bearing whenever the clutch is out.

The engine’s thrust bearings (integral to the main bearing set) limit crankshaft fore–aft movement. Excessive end-float can show up as clutch drag, odd noises during clutch operation, or even sensor misalignment in severe cases. These aren’t a routine service item, they’re inspected and renewed during bottom-end work, following the factory spec for crank end-play.

Good servicing habits for a Primera’s thrust-bearing setup include:

• During any clutch job: replace the release bearing, clutch disc, and pressure plate as a matched kit. Check the fork, pivot ball, and guide tube for wear.
• Use a light smear of high-temp, moly-based grease on the input shaft splines and release fork contact points — and keep grease off the friction surfaces.
• Bleed the hydraulic system with fresh brake fluid and inspect the master and slave cylinders for leaks or sticky operation.
• Install the bearing in the correct orientation, and torque the clutch cover bolts evenly in stages.
• If investigating engine end-float, measure against the FSM spec and renew main/thrust bearings if out of limits.

There’s no set kilometre interval for a release bearing, it’s typically done with the clutch, which can last 150–250 thousand kilometres depending on driving. If there’s any noise with the pedal down, or roughness when the bearing’s spun by hand with the box out, don’t reuse it. Sticking to reputable brands (NTN/NSK/Exedy/OE) helps ensure smooth, quiet operation and long life.

Does a 1993 Nissan Primera have a thrust-bearing?

Yes. Manual models use a clutch release (thrust) bearing, and all engines use crankshaft thrust bearings. This is documented in the P10 Factory Service Manual (CL and EM sections) and reflected in OE-style clutch kits that include a release bearing.

What are the symptoms of a failing thrust-bearing on a P10?

For the clutch release bearing: a chirp, whirr, or growl with the pedal depressed, a rough pedal feel, or inconsistent engagement. For engine thrust bearings: noticeable fore–aft crank play, clutch drag even with the pedal fully down, or abnormal noises tied to clutch operation. Proper inspection will tell which system is at fault.

Should the thrust-bearing be replaced on its own?

For the clutch release bearing, it’s best replaced as part of a full clutch kit while the gearbox is out — it’s low extra cost and saves a second teardown. Engine thrust bearings are only replaced during bottom-end service or if end-float is out of spec per the factory manual.