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re: How much have you spent on your current ride?
Posted on 4/15/24 at 10:53 pm to jpbTiger
Posted on 4/15/24 at 10:53 pm to jpbTiger
quote:
2007 Sequoia, 305K miles. Just had the brakes done, about $500. Plus regular oil changes, tires, etc.
Timing belt/water pump? I know Toyota recommends it every 90k miles. The 470 is an “interference engine” so belt failure is catastrophic. Always wondered how long it would last if not changed. First generation sequoias (especially the later years from ‘05-07) are ridiculously reliable.
Posted on 4/15/24 at 11:56 pm to Ric Flair
I think I had the timing belt done in 2012 or so. Still original water pump.
Posted on 4/16/24 at 12:56 am to Ric Flair
quote:
iming belt/water pump? I know Toyota recommends it every 90k miles. The 470 is an “interference engine” so belt failure is catastrophic. Always wondered how long it would last if not changed. First generation sequoias (especially the later years from ‘05-07) are ridiculously reliable.
Good to know. Have a Toyota with 85. Original belt.
Posted on 4/17/24 at 7:51 am to Ric Flair
quote:
Timing belt/water pump? I know Toyota recommends it every 90k miles. The 470 is an “interference engine” so belt failure is catastrophic.
I don't frick around with interference engines but as a one of anecdotal data point my ES330 I mentioned on the first page has 437k miles on the original timing belt and oil pump, I just decided to turn it into an experiment once it hit 150k and I had been lazy. However, it is a non-interference engine. I have seen timing belts come off cars at ~70k miles and look pretty ragged. I was in Dallas last summer when the temps were hitting 105-107 and I did notice some unusual rise in the coolant temps when sitting in traffic with the A/C on which may be an indication of coolant pump vane erosion but other than that it has been fine. It will get retired at 500k if it makes it so I plan to run the experiment until then unless the coolant pump shows signs of issues at lower temps.
There are a lot of variables on how fast a timing belt wears. One of the key factors outside of the physical construction and dimensions of the belt is the spring rates for the valves, the total number of valves are on the belt that is driving them and the cam ramp angle. Manufacturers are going to generally be conservative on the recommendations both for safety and dealer service center profit but the longer you go the higher the risk obviously.
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