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4.5L 24v - 1FZ-FE
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4.5L 24v - 1FZ-FE
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Crankshaft thrust washers for the Toyota 1FZ-FE six-cylinder engine.
The 1FZ-FE is a 4.5-litre, 24-valve Toyota inline six-cylinder engine. It powers the Toyota Land Cruiser 80 and 100 as well as the Lexus LX. The 1FZ-FE is a 4.5 litre (4477 cc) Toyota inline six-cylinder with double overhead camshafts and 24 valves, produced from 1992 to 2008.
Thrust washers take the clutch thrust and set the crankshaft end play. On a tuned engine with a reinforced clutch, this thrust increases. The uncoated ACL version restores the thrust washers to the original size.
The crankshaft is held between these half washers, which limit its movement along its axis. Each time the clutch is disengaged, the clutch thrust pushes it against them, and the thrust face then works on a thin oil film. Once worn, they let the end float grow: the crankshaft moves and its own thrust faces get damaged in turn.
| Part number | Brand and treatment | Size | Inner Ø (mm) | Outer Ø (mm) | Thickness (mm) | Material |
|---|---|---|---|---|---|---|
| 2T7989-STD | ACL - Uncoated | Standard | - | - | - | - |
| ACL Upper and lower halves (“Half type: Upper & Lower”) |
Only one face of each half washer carries lubrication grooves: it goes against the crankshaft, the plain face against the block or cap. Fitted the other way round, the washer no longer lubricates the crankshaft's thrust face, which then wears very quickly.
On assembly, coat the crankshaft-side face with assembly grease, make sure the half washers seated in the block sit flush, then fit the cap without forcing it and tighten it following the manufacturer's procedure. Finally measure the end float with a dial gauge and check it against the manufacturer's value.
 | ACL Bearing Company, an Australian manufacturer of high-performance engine bearings since 1949, supplies uncoated thrust washers for these engines. |
| Criterion | ACL |
| Presentation | Upper and lower halves |
| Country of manufacture | Australia |
| Material | |
| Coating | No |
| Available sizes | Standard |
These thrust washers fit the Toyota 1FZ-FE six-cylinder engine (engine codes 1FZ-FE) of the following vehicles:
| Brand | Model (chassis) | Engine code | Power | Years |
|---|---|---|---|---|
| Lexus | LX | 1FZ-FE | 205-215 hp | 1995-1997 |
| Toyota | Land Cruiser (_J7_, _JL7_) | 1FZ-FE | 215-224 hp | 1992-2009 |
| Toyota | Land Cruiser 100 (_J1_) | 1FZ-FE | 215-235 hp | 1998-2008 |
| Toyota | Land Cruiser 80 (_J8_) | 1FZ-FE | 205-224 hp | 1992-1999 |
| Toyota | Land Cruiser Pick-up (_J7_, _JL7_) | 1FZ-FE | 215-224 hp | 1990-2007 |
| Toyota (Faw) | Land Cruiser 100 (_J10_) | 1FZ-FE | 211 hp | 2003-2007 |
A worn thrust washer does not always give warning: end float increases gradually, the crankshaft moves at every clutch disengagement and its thrust faces get damaged. Beyond the manufacturer's limit, repair means machining the crankshaft thrust faces, or even replacing the crankshaft. On an engine that is already open, new half washers cost very little compared with that risk, especially with an uprated clutch that increases the thrust.
