LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

Timing Belt and Water Pump Question

Old 10-26-15, 06:37 AM
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idriveslow
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Default Timing Belt and Water Pump Question

I recently purchased a 2000 LS400 with extremely low miles. It's got 42K on it currently. A friend of mine has been advising me to change the timing belt and water pump, seals etc. on the basis that although the car's mileage is low, the timing belt is old and possibly hard and brittle from age.

I'm very good about maintaining my vehicles but obviously do not want to perform unnecessary work. Can somebody (or as many of you as you can) provide me with some guidance on this issue? Thanks!
Old 10-26-15, 07:01 AM
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billydpowe
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Relax, not likely.... my 99 belonged to a doctor who kept the road hot between Dallas & Austin and he went 139k before his first TB... by Sewell and it never hurt anything.. I would not worry...
Old 10-26-15, 07:49 AM
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brybo86
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I think it would be a good idea to take off a timing cover,
maybe driver side is easier,
and at least look at/inspect for any signs of wear/damage/cracks

knowing is better than guessing...
Old 10-26-15, 02:23 PM
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Daspyda
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Lexus recommends 90k or 7 years, whichever comes first.
Old 10-26-15, 04:58 PM
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AandSC
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Congrats on finding a low miles car!

I bought my 2000 with 33,000 miles back in early June and just passed 43,000. I'm going to change the timing belt, water pump, etc at 45,000. It's not worth the risk of having the timing belt break. I'll report my findings...will probably do this over the Thangsgiving holiday.
Old 10-26-15, 06:41 PM
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NotADood
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Originally Posted by idriveslow
I recently purchased a 2000 LS400 with extremely low miles. It's got 42K on it currently. A friend of mine has been advising me to change the timing belt and water pump, seals etc. on the basis that although the car's mileage is low, the timing belt is old and possibly hard and brittle from age.

I'm very good about maintaining my vehicles but obviously do not want to perform unnecessary work. Can somebody (or as many of you as you can) provide me with some guidance on this issue? Thanks!
I'm a Lexus tech, and I would do it. Time seems to affect the belts worse than mileage does from my experience.
Old 10-27-15, 03:08 AM
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dicer
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T belt is cheaper than what happens if it breaks.
Old 10-27-15, 03:27 AM
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Losiracer2
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Due to age alone I would change it. 15 years is a lot of time for rubber to deteriorate, especially under tension of the idlers.

If you do want to risk it, I would at least pull the covers and check for any bad cracking or missing teeth.
Old 10-28-15, 07:44 PM
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timmy0tool
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missing teeth is unlikely. cracking sure. i've had 130k before changing my belt, it had cracks in it, but when i took it off, i don't think it would break for another 30k miles. don't risk it of course.

to the OP, i would take off the cover and just take a look too. i'm leaning towards just leaving it alone and changing at 80k.
Old 10-29-15, 05:42 AM
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PureDrifter
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+1 for a preemptive change, if for no other reason than (relatively) cheap insurance.
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