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

1999 LS belt tensioner pulley replacement

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Old 03-24-21, 10:29 PM
  #16  
Stroock639
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Originally Posted by bradland
Yes, pretty basic maintenance.
Putting the belt back in place correctly is more difficult the replacing the pulley.
finding someone to hold the belt in place while i replace the pulley won't be too hard lol... ok good ordering the 16603-0W010 pulley right now
Old 03-24-21, 10:32 PM
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Originally Posted by mikaelse
IF you buy a whole tensioner or a tensioner wheel with bearing go for a well known brand name on bearings . Noname often last only a few years. MANY times shorter.
just replacing the bearing is surely adequate but i'd feel better about having a whole new pulley with bearing already installed, just bought the official toyota part 16603-0W010 which should allegedly be good for another 2 decades and 8 more trips around the earth lol

probably excessive but i love this car and to me it's worth it to keep everything up to tahara spec
Old 03-26-21, 02:32 PM
  #18  
mikaelse
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Just small related and general question . How about the concept New Old Stock . A bearing sitting on a shelf for 15 years would be a bit of risk for short lifespan.
The oil/grease will probably have a clearly limited life then. I did read on some forum about some LEXUS OEM electronics sparepart only lasting a few years. The theory put forward was NOS part with close to dried out capacitors or simmilar. Do we need to worry about NOS being past reasonable use by date for some components?.
Old 03-26-21, 11:24 PM
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Losiracer2
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I went with NTN bearings for my old 97' and I think I paid less than $15 for the pair from the same vendor on eBay. Drove it for 3 yrs in freezing temps in Michigan and didn't have any issues. But I think 95-97 is different than 98-00, so be weary of the right part numbers. I found them all on clublexus though in one of these threads after searching, someone had done it before.

ah yes, here's the thread I referenced: I posted pics in there too

https://www.clublexus.com/forums/ls-...numbers-6.html

Last edited by Losiracer2; 03-26-21 at 11:29 PM.
Old 04-04-21, 01:50 PM
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Stroock639
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ok got the new pulley on today, really wasn't too tricky apart from just having to rotate the fan ever so slightly to have room to get your hands and socket on the tensioner

old one definitely had to go, noisy af and not smooth anymore


i was also able to just let the belt hang loose without removing the whole thing which was nice, and i brought in a 2nd set of hands to hold the wrench to keep the tension off the belt as i slid it back on to the tensioner and alternator pulleys... if i didn't have someone else to hold the wrench it might've taken a bit longer but all in all maybe 15-20 min
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Old 04-04-21, 01:56 PM
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Originally Posted by Losiracer2
I went with NTN bearings for my old 97' and I think I paid less than $15 for the pair from the same vendor on eBay.
the original bearing is actually an NTN bearing, the new pulley (16603-0W010) comes with an NSK bearing which is good enough for me lol
Old 04-05-21, 05:36 PM
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Originally Posted by mikaelse
Just small related and general question . How about the concept New Old Stock . A bearing sitting on a shelf for 15 years would be a bit of risk for short lifespan.
The oil/grease will probably have a clearly limited life then. I did read on some forum about some LEXUS OEM electronics sparepart only lasting a few years. The theory put forward was NOS part with close to dried out capacitors or simmilar. Do we need to worry about NOS being past reasonable use by date for some components?.
hey sorry meant to respond to this earlier... i definitely don't doubt what you're saying, but i don't have a bearing press and i don't want to start knocking things with a mallet and possible damage the pulley so that a new bearing won't sit properly... i'm much happier knowing that these parts were both professionally assembled once when they were both new

the new bearing is smooth as silk and silent, we'll have to just wait and see how well it hold up... at least now i know it's quite straightforward to replace in the future, maybe when i get the next timing belt service i'll just have a new tensioner itself installed
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