Hi all, can someone tell me what is timing chain replacement interval for that engine , 2GR-FXE ?

 

Never. The timing chain will last the life of the engine - the chain will actually outlast the engine.

The timing chain is almost certainly never going to fail and need to be replaced.

 

As BCLexus stated, it is a true lifetime part. If it were a belt, I'd advise following the manufacturer's recommendations but chains are near indestructible.

 

Generally, not until it starts giving signs - noise, timing codes, etc.

Some engines' chains do tend to fail (*cough* certain european engines *cough*), for various reasons - super long OCIs are the commonly blamed culprit, but other engines from the same companies (you guessed it - BMW, VAG, Merc) didn't really suffer from that, even when abused, so it's a bit of a hit and miss.

With Toyota - unless I've missed something - generally you'll get codes or some other indication of trouble way before the chain gives. Specifically for the 2GRs in general - I don't believe that I've seen a single report of a snapped chain in service - please correct me if there is. Usually people change the chain along with all 4 of the VVTi hydraulic adjusters (since the chain sprockets get sold with them - new sprockets means new chains if you want everything to be top-notch) - and they do that only IF and WHEN the actuators start misbehaving - read: cold start rattle every time. In my case, it's only sometimes, like if I start up the car for ~40sec, turn it off and wait 30minutes or so (i.e. cold start right after a cold start without any time to warmup whatsoever).

Anyways.

 

I agree, more of a European car problem. This is actually the main reason I chose not to buy a BMW and went for the GS. F series BMW's are known to have timing chain failures after 150K kms.
NOt the case on most Japanese vehicles. Not sure how Nissan compares, since they are pretty crap.

 

In a Toyota if you change the oil & filter regularly, it never needs replacement. Metal and other grit in engine oil is what rapidly wears timing chains and then causes stretch and timing problems. So the best solution is to simply maintain clean oil. Other timing chain problems are usually caused by poor design or manufacturing, generally not a problem with Toyotas.

 

My car is used and have missing service records and 000 maintenance so i dont have any clue how long will the chains and gears last and i have some noises so.... thats valid only if you have brand new car and its maintained regularly or if you have full dealership service records...
last time when we changed the oil,and diff oil we had a lot of metal parts inside....
i hope car will last at least 100.000more miles...
without very expensive brakes..

 

I have plenty of timing chained cars with unknown service history of which all of them has chains without issues.
stop trying to find issues. A chain rattle is LOUD and once you have that, then swap. Don’t do it “just because”.

 

Not relevant to 2GR engines TBH. You are good to go.

 

I have a 2GR-FE in a 2007 RX350 with 240K. It has zero rattle at startup or any other time.

The 3.0 V6 in my Audi A6 has rattled for about a half second at cold starts since it had 50K miles on it. Germans, for reason, insist on using tensioners that work on oil pressure. They are supposed to hold the oil pressure, but inevitably bleed some off.