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

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Old 06-30-14, 06:48 AM   #1
dthouston
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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.
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Old 06-30-14, 10:57 AM   #2
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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.
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Old 06-30-14, 04:21 PM   #3
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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).
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Old 07-02-14, 12:24 PM   #4
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Has anyone actually seen a cam belt snap through old age?
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Old 07-02-14, 12:24 PM
 
 
 
 
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