Thanks for the info Shaffer.
Thanks for the info Shaffer.
GOD!!!No one has answered this mans question!! I am just a curious! I have not heard the first story of anyone saying.."Yep! My motor blew all to hell cause I didn't change the timing belt! I think it's...like a lot of religions..a rumor to generate money! I sold one Toyota truck with 260 K on it and another with 210K on it .Both had origional belts in them! I'm on my 3rd Tundra right now with 120K on it and I'm sleeping great at night. They are like Honda motors...Just keep the fluids changed ..let em breath clean air and they run for ever!.....but pleses.If anyone ..including mechanics..has seen a blown motor because of a busted timing belt...Post IT! Thanks Dale
I've had 2 timing belts "break". Actually the first one just slipped due to age on a 89' Lemans. Just stopped dead in its tracks at idle coming out of the driveway. Replaced belt and all was well. Second one broke, 55 miles an hour rush hour traffic in a 87' civic, had traffic backed up for miles and felt like an ***, but even worse the engine was gone. Mechanic opened it up and it looked like a grenade went off, not good. Both went between 110,000 and 120,000 miles. Like said before get them changed its not a myth.
I have a buddy who is a certified TOYOTA Mechanic 5yr. he told me the 3.0 & 3.4 v6 are non interference meaning if the belt breaks your stuck on the side of the road. The V8s are interference motors if the belt brakes get your wallet out $$$$$ top end valve train & pistons will be trash. Do you want to take that chance. Not me. Change the belt when toyota recomends do the water pump belt tensioner while your in there. Good luck.
Hello. This is my first post. I just bought a 01 V6 Tundra and the belt was not been replaced yet. It has 170 K miles, but I'm going to replace the T belt very soon. Is it true, that the 3.4 V6 is not an interference engine?
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I did my own timing belt with a friend at 95k miles or so and the timing belt was still in good condition. No real cracking or wear. I won't venture a guess how long it could last, but definitely more than the 95k I ran it.
*edit-just realized this is a really old thread I responded to, haha.
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just wanted to clarify, somebody mentioned that "all Toy V6's are timing-chain motors", this is not technically correct, as 3vze motors like in 2nd gen 4runners are belt-driven.
I know this is a Tundra forum but somebody uninformed may misinterpret what's being said.
Damn i thought my 06' 4.7L V8 Tundra had a timing belt? I have 52k on it now so I'm not stressing it yet.
and yes, they can and will destry a motor on an interference motor when they do break. some break right on time some go twice as far etc. but i'll be replacing mine when i shoudl so as not to worry about it.
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Fact of the matter is if you dont change it at the specific intervals it could be fine, might never break.
Rubber wears out, thats what the belts are made of. Eventually the rubber will begin to crack then begin to fall apart. If the engine is interference it could possibly bend the valves and then your in for more than 500-900 bucks worth of repair-more like 2-5k depending on what went wrong and even then they may not be able to fix it right and you need a new block.
Ive seen plenty of cars, toyota and others with timing belts that literally were disintegrating. You really want to take the chance and save the cash fine by me. If it fails and causes damage im gonna laugh at you till I fall over from lack of oxygen.
And yes the 3.0 and 3.4L V6 uses a belt and is non interference. 4cyl engines use a chain most of the time-not sure about interference.
I think we all agree what would happen to your motor if the T-belt breaks, but has anyone ever heard of it happening like the OP asked? The Service Manager at my local Toyota dealer said they change them all the time but he has never heard of one breaking.