Timing Belt or Chain
#16
Lexus Test Driver
iTrader: (1)
On the subject and FWIW, my neighbor's son has a '01 LX470 (same engine as GX, of course), and he just changed his timing belt for the first time at a little over 150K miles. The belt still looked good. It had a small section that was begining to show enough fatigue that would make you want to replace it.
#17
Instructor
On the subject and FWIW, my neighbor's son has a '01 LX470 (same engine as GX, of course), and he just changed his timing belt for the first time at a little over 150K miles. The belt still looked good. It had a small section that was begining to show enough fatigue that would make you want to replace it.
#19
On some cars, the failure (breaking) of the timing belt causes significant engine damage, such as the destruction of the valves as the pistons and the valves move out of sequence. Other engines are what is referred to as "freewheeling". Does anyone know if the 2007 GX-470 is freewheeling or not? Thanks.
#20
On some cars, the failure (breaking) of the timing belt causes significant engine damage, such as the destruction of the valves as the pistons and the valves move out of sequence. Other engines are what is referred to as "freewheeling". Does anyone know if the 2007 GX-470 is freewheeling or not? Thanks.
#21
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From what I've read the 4.7 is an interference engine. I believe that the belt also controls the cam(s) which means the valve train would stop moving but the bottom end would continue with catastrophic consequences.
Please correct me if I'm wrong.
Please correct me if I'm wrong.
#22
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Unless you have complete confidence in you doing the job, don't attempt the job.
#23
#24
Lexus
2.5L Non-Interference
3.0L V6 Non-Interference
3.3L V6 Non-Interference
3.0L Inline 6 (1992-97) Non-Interference
3.0L Inline 6 VVT-i (1998-2006) Interference
4.0L Interference
4.3L Interference
4.7L Interference
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