LS400 Timing Belt replacement
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Joined: Mar 2010
Posts: 663
Likes: 52
From: Florida
the recommended is 90k. i dont see why that would be a problem unless your hard on the engine. it wont hurt anything changing it now though. i recommend changing all the front seals when you do change it though. now or later.
Pole Position
Joined: Dec 2009
Posts: 3,278
Likes: 317
From: ct
90k should be good, some have gone alot more but noone will recomend that b/c it is an interference engine. If the belt does snap, or slip, you WILL have major damage to your engine. As William said, make sure you change the seals. (Cams and crank) I didn't do mine last year when I changed the t-belt and now I'm back in there changing them.
williamb82, what front seals do you mean?
i will change my belt this summer so im listening in on this topic.
and what about bearings, which ones should be changed? i like to repairs myself and get the oem pars online through sewellparts so it would be the best to get everything ready so i dont miss out on anything.
i will change my belt this summer so im listening in on this topic.
and what about bearings, which ones should be changed? i like to repairs myself and get the oem pars online through sewellparts so it would be the best to get everything ready so i dont miss out on anything.
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Joined: Jun 2008
Posts: 58
Likes: 1
From: CA
There are a couple of idler pulleys and a tensioner that you'll want to replace. Of course you'll want to replace the water pump and there is at least one o-ring in there.
You'll want to work out a plan for breaking the crankshaft bolt loose...if I recall correctly there are 3 approaches: (1) special tool to hold the pulley, (2) bump the starter, (3) jam the flywheel. You should be able to search and find the details on these.
www.lexls.com has great details on this work, I think it's similar to the 98 model....?
You'll want to work out a plan for breaking the crankshaft bolt loose...if I recall correctly there are 3 approaches: (1) special tool to hold the pulley, (2) bump the starter, (3) jam the flywheel. You should be able to search and find the details on these.
www.lexls.com has great details on this work, I think it's similar to the 98 model....?
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Joined: Mar 2010
Posts: 663
Likes: 52
From: Florida
the crank seal and cam seals. as for the idler pullies, i dont change them unless they feel gritty when turning by hand. if they feel perfectly smooth i leave them. as for the water pump. well, i would pull it off and inspect the impeller. if its fine and the bearings feel good id put it back in without replacing. if the impeller is corroded, or the bearings fell gritty then id install a new one.
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Lexus Champion
Joined: Sep 2010
Posts: 2,218
Likes: 300
From: NA
you can wait a few more years on that. CA weather is easy on timing belts and your miles are pretty darn low. you can go something like 130,000 on these timing belts without worry.
the belts may last, but the water pump and idler pulley bearings are age sensitive. wouldn't hurt to pull the timing covers and check the belt for both wear and any signs of a failing bearings (ie-wear pattern).
Driver
Joined: Jan 2011
Posts: 157
Likes: 0
From: ca
unless if you have the money just laying around id wait if the belt isnt cracked or glazed looking,my 97 camry i didnt change until 150k when its was finally starting to glaze not crack.. it was the original everything. opinions will varie but it really just depends on your financial situation and how it looks , im not looking at it in person so i cant be sure