#2JZ TIMING BELT TENSIONER MANUAL#

To prevent the possibility of damage, I would recommend removing the radiator and fan just to provide more working space (see Photo 1). The various models and yearly changes to this series of cars make an initial inspection worthwhile after checking a repair information source. Drain the coolant and remove the fan shrouds. The job is easier if it is on a hoist and the lower engine covers are removed. Tackling the Job Because of the interference possibilities, I suggest removing the ignition key and hiding it so the engine does not get cranked by mistake while the belt is off. This is one engine you do not want falling through the cracks when it comes to preventive maintenance, if you catch my drift.Ī quick scan through service bulletins, tech assistance requests and first-hand experience with this repair leads me to advise that extra care be taken on this repair.Įnsure that every step is done correctly, and the proper tools and procedures are used to prevent comebacks, driveability complaints or difficulties in completing this service. My advice is to look closely at the accessory belts, note any cracking or evidence of replacement, and then factor in the use of the car and its maintenance history.Ĭars that are driven primarily in hot, dry climates will probably benefit from earlier replacement than those living in more moderate conditions.ĭue to the possibility of engine damage if the belt breaks or jumps time, I would not recommend waiting beyond six years or 90,000 miles, which is the OE-recommended interval for this engine. The VVT-i version also featured a distributorless ignition system (DIS) in favor of the traditional distributor set-up previously seen on the 2JZ-GE design.ĭespite common misconceptions, it was not a true COP (Coil-On Plug) ignition system, instead relying on one coil to fire two cylinders, one of which was by spark plug wire. The engine utilizes Sequential Electronic Fuel Injection, has an aluminum head and four valves per cylinder, with some versions using VVT-i, along with a cast iron cylinder block. So when should you recommend the timing belt replacement?ĭid You Know? The 2JZ-GE provided output rated at 220 hp at 5,800 to 6,000 rpm and 209 to 220 ft.-lbs.

#2JZ TIMING BELT TENSIONER MANUAL#

Depending on which tech manual or tech assistance site you access, you can get widely varying mileage and time suggestions.

Know When to Say When Recommended replacement intervals for timing belts are all over the map these days. There are also differences between models on this platform that can impact the way certain components are removed.

Due to the complexities of the valve timing and internal engine clearances, these engines will most likely bend valves if the belt fails, or if the belt is installed incorrectly.įor these reasons, I would recommend that you read through this article and the service manual description for this job very carefully before starting this repair. Nothing can spoil the resale value of a high-dollar car more than an engine failure. The focus of this article will be the timing belt replacement on a 2001 GS 300 with the i n-line six-cylinder 2JZ-GE engine with VVT-i (Toyota’s variable valve timing). The engine powering these vehicles has some similarities to some of its Toyota-model cousins that you have more than likely seen in your shop. However, just because they are considered a “luxury” vehicle, doesn’t mean you should turn this work away.

Since these cars are somewhat rare (you have to look to spot one on the road), many people would mistake them for their luxury “fluff mobile” cousins in the LS class. Later models have gone to V6 and V8 powerplants. Initially, these cars were powered by an in-line six-cylinder from the Toyota Supra line.

The GS, and more recently, the IS platforms, are high-quality, performance luxury models with a conventional front engine, rear-drive or all-wheel-drive layout.

2jz timing belt tensioner