Parts for your 1998 Toyota Crown-Thrust bearing

1998 Toyota Crown thrust-bearing — what it does and how to look after it

Yes, a thrust bearing is absolutely fitted to a 1998 Toyota Crown. On the JZ-family petrol engines commonly found in these cars (1JZ‑GE and 2JZ‑GE, plus the 1G‑FE in some trims), Toyota specifies a crankshaft thrust bearing integrated at the No. 3 main journal to control end float. This is detailed in Toyota’s Engine Mechanical repair manuals for the 1JZ/2JZ and 1G‑FE engines and in the S150-series Crown workshop literature, which list thrust clearance specifications and inspection procedures.

What does that mean in the real world? The thrust bearing keeps the crankshaft from shuffling forwards and backwards under axial loads — think converter load in the auto, or clutch pressure in the rare manual variants. By capping end play, it protects the crank, bearings, transmission interface and even the timing gear. On these engines the thrust faces are part of the flanged main bearing shells, so servicing is done as part of the main bearing set.

It’s not a routine “replace every X km” item, but it’s worth checking whenever the sump is off, the bottom end is open, or if there are clues it’s unhappy. A technician will measure crankshaft end float with a dial indicator and compare it to the factory spec in the Toyota EM section. If it’s out of spec, the fix is typically a new main bearing set with thrust faces and a close look at the crank’s thrust surfaces.

• Tell-tale symptoms: noticeable crank pulley in–out movement, metallic rubbing at idle with the clutch pressed (manual), clutch engagement changing after warm-up, or fine bearing material in the oil.
• Good practice: quality oil and timely services, don’t ride the clutch, and avoid excessive fore–aft loading during accessory or transmission work.
• Replacement notes: on JZ and 1G‑FE engines this job involves removing the sump and ladder frame/girdle to access the No. 3 main. Many workshops prefer engine-out for access and cleanliness. Bearings are fitted to spec, clearances checked (Plastigage and dial indicator), fasteners torqued to the Toyota procedure, and rear main seal condition reviewed while in there.

Technical sources: Toyota Engine Mechanical repair manuals for 1JZ‑GE/2JZ‑GE and 1G‑FE (EM section: main bearing and thrust clearance), and Toyota Crown S150-series workshop manuals confirming thrust bearing location at the No. 3 main journal.

FAQs

Does a 1998 Toyota Crown actually have a thrust bearing?
Yes. Toyota’s engine manuals for the JZ and 1G‑FE engines specify a thrust bearing at the No. 3 main journal, with inspection and end-float specs. Every Crown engine of this era uses it to control crankshaft axial movement.

What are common signs the thrust bearing needs attention?
Look for fore–aft movement of the crank pulley, a scraping or rubbing noise when a manual’s clutch is depressed, shifting clutch engagement point, or glitter in the oil. Any bottom-end work is a good time to measure crank end float.

Can the thrust bearing be replaced without removing the engine?
Sometimes, but it’s a big job. The sump and the ladder frame/girdle must come off to access the No. 3 main on JZ/1G‑FE engines. Many workshops remove the engine to ensure cleanliness, accurate measurements and correct torque/angle procedures.