Go Back   Club Lexus Forums > Lexus Model Forums > LS Models > LS400
Sign in using an external account
Register Forgot Password?

'99 LS - what is minimum tear-down to inspect timing belt?

Thread Tools Search this Thread Display Modes
Old 06-30-14, 06:48 AM   #1
Driver School Candidate
Trader Score: (0)
Join Date: Nov 2005
Location: TX
Posts: 8
Question '99 LS - what is minimum tear-down to inspect timing belt?

I have an oil leak somewhere at the front of the engine in my '99 LS (240K hard stop-and-go miles). I want to know if the leak has soaked the timing belt. What is the minimum tear-down in order to inspect the timing belt on a VVTI engine?

BTW: I realize that a visual inspection of a timing belt isn't a good indicator of whether it's OK or not. But if it's soaked in oil, I'll likely replace it very soon (and fix the leak). If it's not soaked, then I'll wait until its' next 90K replacement interval.
This ad is not displayed to registered members.
Register your free account today and become a member on Club Lexus!
dthouston is offline   Reply With Quote
Old 06-30-14, 10:57 AM   #2
Trader Score: (0)
Join Date: Jan 2012
Location: TX
Posts: 160

Remove either of the front cam covers. You can see enough of the belt to know if it is wet or not. You sure that you're not actually seeing ps fluid? That manages to go all over the lower engine areas, but it usually comes from the PS pump, which in the 99's is usually a bad o-ring.
fixmiester is offline   Reply With Quote
Old 06-30-14, 04:21 PM   #3
Trader Score: (10)
PureDrifter's Avatar
Join Date: Aug 2004
Location: California
Posts: 22,924
Send a message via AIM to PureDrifter

cam gear cover should be enough, you really only need one off to look.

If it's PS fluid it's the pump, the reservoir hose, or the high pressure fitting/line into fitting.
if it's oil and it's up there, it's either the cam or crank seals (possibly cam vvti gear), or the valve cover gasket (though rare to leak there since it's fipg).
1. Black on Black 1999 LS400 PM-spec
-Maya-Megan-Magnaflow-LSportline-Xenondepot-PPE Engineering-Duce-Platinum VIP-Figs Engineering-R1Concepts-
2. Black 2001 MR2 Spyder -#muchroadster-
3. Black 2004 IS300 -Manaray-HKS-Eibach-Kumho-
4. Ebony Teal 1995 LS400 11-8-06
PureDrifter is offline   Reply With Quote
Old 07-02-14, 12:24 PM   #4
Driver School Candidate
Trader Score: (0)
AndyTTT's Avatar
Join Date: Oct 2011
Location: Yorkshire
Posts: 15

Has anyone actually seen a cam belt snap through old age?
AndyTTT is offline   Reply With Quote
Old 07-02-14, 12:24 PM

Similar Threads
Thread Thread Starter Forum Replies Last Post
120K Maintenance results bryan11 IS - Second Generation 5 12-12-14 02:32 PM
1992 SC300 2JZ-GTE Aristo Swap & Suspension Overhaul xknowonex SC 400/300 16 07-27-14 07:21 AM
Timing belt tensioner leaking oil MikeLex ES300 and ES330 13 07-10-12 05:10 PM
Oil Leaks: Is the Dealer Screwing Me? MDLexOwner LS400 15 03-27-12 10:36 PM
hmmmmm... oil leak...? msekanha ES300 and ES330 11 03-19-12 06:31 PM

inspect, oil leak, timing belt

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

All times are GMT -7. The time now is 04:47 PM.

Join ClubLexus

Copyright © 2000-2015 Internet Brands, Inc. All Rights Reserved
Privacy Policy | Disclaimer | Terms of Use | JOBS

Get all contact info