WeatherDon Posted January 29, 2005 Share Posted January 29, 2005 Just curious...For those of you who ignored (or procrastinated) the 90k timing belt replacement and your timing belt failed, what was your mileage when it failed? If you haven't experienced this personally have you heard from others when their belt failed? Quote Link to comment Share on other sites More sharing options...
sthornto@nvinet.com Posted January 30, 2005 Share Posted January 30, 2005 My timing belt (1993 SC 300) was changed at 72000...before I bought the car. It has 135000 on it now....and I was wondering what was the suggested interval for changing the timing belt. So....is it every 90000 miles? Quote Link to comment Share on other sites More sharing options...
AWJ Posted January 30, 2005 Share Posted January 30, 2005 As far as I know, I've never heard a Lexus tech say they saw one fail... most people take care of them. I've heard people mention very high miles of the original timing belts - like 2ook+ I think the book says every 80k... I try to stay around that range, I look at the belt a bit here and there too.. Quote Link to comment Share on other sites More sharing options...
jbarhorst2 Posted January 30, 2005 Share Posted January 30, 2005 I changed mine on my '97 SC300 at a little over 150,000 miles. It actually did not even look worn. Tom Quote Link to comment Share on other sites More sharing options...
bmichaelia Posted February 1, 2005 Share Posted February 1, 2005 As far as I know, I've never heard a Lexus tech say they saw one fail... most people take care of them. I've heard people mention very high miles of the original timing belts - like 2ook+ I think the book says every 80k... I try to stay around that range, I look at the belt a bit here and there too.. ← My owner's manual for my '95 SC400 only mentions changing it for shedule A, which is like hard use conditions, at 60K miles. For normal driving, it doesn't even mention it, implying it doesn't need to be changed at all.So where do these 90K recommendations come from? Quote Link to comment Share on other sites More sharing options...
brucelee Posted February 2, 2005 Share Posted February 2, 2005 As far as I know, I've never heard a Lexus tech say they saw one fail... most people take care of them. I've heard people mention very high miles of the original timing belts - like 2ook+ I think the book says every 80k... I try to stay around that range, I look at the belt a bit here and there too.. ← My owner's manual for my '95 SC400 only mentions changing it for shedule A, which is like hard use conditions, at 60K miles. For normal driving, it doesn't even mention it, implying it doesn't need to be changed at all.So where do these 90K recommendations come from? ← Your mechanic can actually inspect the belt by way of a cover that can be removed. Cheap insurance, no? Quote Link to comment Share on other sites More sharing options...
WeatherDon Posted February 2, 2005 Author Share Posted February 2, 2005 My owner's manual for my '95 SC400 only mentions changing it for shedule A, which is like hard use conditions, at 60K miles. For normal driving, it doesn't even mention it, implying it doesn't need to be changed at all.So where do these 90K recommendations come from? ← The owner's manual for my '98 SC400 specifically states that the timing belt be replaced at the 90,000 mile service. Quote Link to comment Share on other sites More sharing options...
bmichaelia Posted February 2, 2005 Share Posted February 2, 2005 My owner's manual for my '95 SC400 only mentions changing it for shedule A, which is like hard use conditions, at 60K miles. For normal driving, it doesn't even mention it, implying it doesn't need to be changed at all.So where do these 90K recommendations come from? ← The owner's manual for my '98 SC400 specifically states that the timing belt be replaced at the 90,000 mile service. ← Thanks, I will check further. I wonder if that requirement was added for '98 and later engines,though, with the higher HP and Variable Valve Timing. Quote Link to comment Share on other sites More sharing options...
brucelee Posted February 5, 2005 Share Posted February 5, 2005 Just have the belt checked. If it is cracked it is toast! My owner's manual for my '95 SC400 only mentions changing it for shedule A, which is like hard use conditions, at 60K miles. For normal driving, it doesn't even mention it, implying it doesn't need to be changed at all.So where do these 90K recommendations come from? ← The owner's manual for my '98 SC400 specifically states that the timing belt be replaced at the 90,000 mile service. ← Thanks, I will check further. I wonder if that requirement was added for '98 and later engines,though, with the higher HP and Variable Valve Timing. ← Quote Link to comment Share on other sites More sharing options...
1990LS400 Posted February 5, 2005 Share Posted February 5, 2005 The timing belt on my 1st LS (a 90) failed at 84,000 miles when the water pump failed on a cold winter day. The indie shop owner (former Lexus service manager) who replaced it told me at the time that the only belts he had seen break were cause by problems other than the belt wearing out. I had the belt replaced a 2nd time at 180,000 miles just prior to selling the car. If you smell coolant, check the water pump for leaking! Quote Link to comment Share on other sites More sharing options...
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