Timing belt

[TommyTundra]

I have 77500 on a 2000 Tundra. Truck runs like a top. The dealer tells me that I should replace the timing belt and water pump at this stage. Approx. $500.00.

Anyone have an opinion.

[2008_CrewMax]

its usually good to change the timing belt at about 75k .. im not sure about the water pump

[jpnca]

As far as I know the 3.4L timming belt is recomended to be chaged at 90K miles. The 3L is somewhere around 70K. If you are doing the timing belt go a head and do the water pump, hoses, and belts because you have to take them off to get in there.

[TommyTundra]

Thanks guys
I'll wait for 90000

[kit]

Yeah Toyota recommends at 90k. Just wait till then. Your okay for a while.

[Columbia, SC]

OK, I am new to this site but nobody said anything about the 4.7 engine that is in a 2000 Tundra TRD, mine is a 4.7 and the timing belt was replaced by the dealer at 81,700
I have 140,000+ miles on her now with no problems.
This truck was owned by a Toyota dealer salesman and dealt with accordingly.
So I am thinking it should be changed out at around 80,000 miles.
I am not trying to 'stir the pot' at all,,,, just letting on of my dealings and records I have for this sweet @ss ride.
Columbia,SC

[Deznutjob]

Originally Posted by TommyTundra

I have 77500 on a 2000 Tundra. Truck runs like a top. The dealer tells me that I should replace the timing belt and water pump at this stage. Approx. $500.00.

Anyone have an opinion.

I had a 2000 Tundra with 180,000 miles on it, it too ran like a top and I never changed the timing belt or the water pump. That truck is all but bomb proof!

[Ironman02]

I think it is all in how you drive your truck. The harder you are on it the sooner you will have to change it. The dealer told me 90K, and I now have 121K without the change. The truck runs very strong. Most of my mileage was from highway driving though.

Has anyone done this job on their own? How difficult is it, and about how many hours to complete?

[Deznutjob]

Originally Posted by Ironman02

I think it is all in how you drive your truck. The harder you are on it the sooner you will have to change it. The dealer told me 90K, and I now have 121K without the change. The truck runs very strong. Most of my mileage was from highway driving though.

Has anyone done this job on their own? How difficult is it, and about how many hours to complete?

Ironman, I had a heavy foot the whole 180,000 miles! That 4.7 V8 is bombproof! If changing it will give you piece of mind then I would change it bro. Sorry, haha I don't know how to change it by the way.

[Boats77380]

i have also been throwing around replacing the timing belt on a 2003 4x4 4.7. i have around 96k miles with no problems. As far as replacing the water pump, you gonna take it off anyway, bone up and replace it.

my question for this thread would be what happens when you dont replace it?
does the truck just stop? do you have to account for everypiece like the water pump on a boat?

[Ironman02]

Originally Posted by Boats77380

i have also been throwing around replacing the timing belt on a 2003 4x4 4.7. i have around 96k miles with no problems. As far as replacing the water pump, you gonna take it off anyway, bone up and replace it.

my question for this thread would be what happens when you dont replace it?
does the truck just stop? do you have to account for everypiece like the water pump on a boat?

I had the timing belt go out in my 89’ 22RE Hilux 4x4, and yes the truck just stopped running. The truck would turn over, but no kick. I had to replace the head, valve train, timing set, etc. I was lucky I did not have to replace any of the pistons.

I would say it is cheap insurance to change it while it still runs good, or like Dez said “Peace of mind”, but then again I just turned 123k I run it hard and knock on wood no problems. Heck Dez put 180k on his and it sounds like he drove the piss out of his Tundra as well.

[shatto]

When did they change from belt to chain?

I tend towards conservatism, in trucks too.
Seriously; how many valves and related parts do you suppose you'd have to replace if a belt failed?

Generally speaking, if you are rooting around replacing a belt, most mechanics recommend replacing the water pump at the same time. And idler and tension bearings, I think.

[notevenclose]

Originally Posted by Ironman02

I had the timing belt go out in my 89’ 22RE Hilux 4x4, and yes the truck just stopped running. The truck would turn over, but no kick. I had to replace the head, valve train, timing set, etc. I was lucky I did not have to replace any of the pistons.

I would say it is cheap insurance to change it while it still runs good, or like Dez said “Peace of mind”, but then again I just turned 123k I run it hard and knock on wood no problems. Heck Dez put 180k on his and it sounds like he drove the piss out of his Tundra as well.

Sometimes they break, sometimes they slip and throw the valve timing off(which is sometimes as bad, if not worse), sometimes they last for many thousands of miles.

If the belt breaks, you WILL have a few valves hit the piston which will bend the valves, possibly ruin a piston or rod bearing/crank bearing; bent valves will ruin a head, score the cam lobe/cam bearings, bend a cam, etc. Expensive for sure. I've heard of the vehicle being totaled as a result of throwing a timing belt.

Get a service manual and give it a shot. Remember, it was designed to be replaced so if you have some mechanical ability, you could do it.

[nikita]

Originally Posted by notevenclose

If the belt breaks, you WILL have a few valves hit the piston which will bend the valves, possibly ruin a piston or rod bearing/crank bearing; bent valves will ruin a head, score the cam lobe/cam bearings, bend a cam, etc.

Which engine? Most Toyota engines are non-interference. That means no damage, the engine just stops. We went over 140,000 on a Corrolla when the belt finally slipped, no damage. The 3.0 in our current Camry has over 120,000 on it and it looks fine. Remove the plastic cover and look. If it is not frayed or cracked, its not going to suddenly fail. The dealer also told me it is sometimes better not to open things up because it can get expensive when they start replacing other parts. A $300 timing belt change quickly becomes a $1200 job. At least he was honest about it.

[goneballistic]

Originally Posted by nikita

Which engine? Most Toyota engines are non-interference. That means no damage, the engine just stops. We went over 140,000 on a Corrolla when the belt finally slipped, no damage. The 3.0 in our current Camry has over 120,000 on it and it looks fine. Remove the plastic cover and look. If it is not frayed or cracked, its not going to suddenly fail. The dealer also told me it is sometimes better not to open things up because it can get expensive when they start replacing other parts. A $300 timing belt change quickly becomes a $1200 job. At least he was honest about it.

The 4.7L is an interference engine.