Anyone know when the V6 will be upgraded and change from timing belt to chain or gears? Most Toyota V6 engines now have chains. Some, like me, will not purchase another vehicle with a belt. Honda stepped up to a chain on the 4 several years back.
Chains are proven good for decades.
Belts won't last long, and cost lots of money to replace.
The dealers want your frequent visit, that's why the automakers replace the chain with belt.
Same with TV nowadays, just don't last as long as before.
A well engineered chain system can be expected to last the life of an engine. The initial cost is more but the long term cost of replacement and possible repair is more with a belt drive engine. Most modern high compression engines will be destroyed or severely damaged should a chain or belt fail. The pistons will strike open valves usually resulting in an engine replacement. All manufacturers have used chains for newly designed engines. Honda did this when they developed the current 4 cyl used in the Accord and some other vehicles. Most manufacturers have some of both types in their fleet so they avoid addressing the issue. The first one to have all chain drive engines will probably take advantage of that in their marketing and I think it will provide them a definite advantage. I am confident Honda will do it with the V6 but just do not know when. My son and a brother-in-law used that as a major factor in choosing another make, Toyota, rather than a 2012 Pilot. I have had more problems and spent a lot more on the three vehicles I have owned with belts than any chain engine I ever owned. I have a five year old vehicle with a belt that I am considering replacing in 13 and will not consider a vehicle with a belt as long as a suitable one is available with a chain. It takes some investigation to make sure which does.