Look at my Timing Belt after 100K

[srkpaco]

I have a 2004 LC all stock with cranked torsion bars and no running boards. I just did my 90K mile service at 100K, look at my timing belt it looks brand new. Please someone tell me this is something you have to do because I feel like I just wasted $1000 getting a new timing belt, water pump and seals.

This timing belt looks almost brand new, the water pump wasn't weeping and who Know about the cam seals? I guess this is just something that has to be done?

I also did the front and rear diffs., transfer case, transmission drain and refill, throttle body clean, and greased all the points.

 

[04UZJ100]

Moral of the story:

A: Toyota doesn't mess around regarding quality components.
B: Replace with OEM.

It's been discussed on here that 100k is VERY conservative on behalf of Toyota...it's most likely due to common WP weeping at that mileage.

 

[srkpaco]

Yes, all OEM parts I had all the work done at the dealership, strangely they gave me the best price plus, 10% off, a free loaner car and a free oil change.

 

[OregonLC]

I'm confused. The belt is sitting on a table. Is it already out? If so, it's only a $60 part. The pump is another $130. Are you debating putting the old one back on?

It's an interference engine, so you're rolling the dice past 100k, although I'd bet a paycheck on it holding til 180k. Most likely something else will fail first in the system, either a pulley, water pump, tensioner, etc. but it's a solid PM that most folks adhere to.

 

[Trunk Monkey]

It's called preventative maintenance and caring for your truck so that it will take care of you.

 

[srkpaco]

That is the old belt, it's already in the garbage. I guess I was just expecting to see a bit more wear and tear.

Correct Trunk Monkey on the maintenance, I now have piece of mind and know I am good for another 100K or more. If feels good to take care of your vehicle.

 

[marshotel]

I just did my 90K mile service at 100K, look at my timing belt it looks brand new. Please someone tell me this is something you have to do because I feel like I just wasted $1000 getting a new timing belt, water pump and seals.

If it makes you feel any better:

I just changed the timing belt in my new-to-me 1998 Land Cruiser at 187k miles. The old belt was really in bad shape. It must have been the original belt. I feel lucky to have changed the timing belt before it broke, which likely would have totalled the vehicle.

The rubber on my old timing belt was cracked all the way through and starting to disintegrate. The woven material in the belt was frayed in several places, and some of the rubber teeth were worn down. It looked like it was about to fall apart at any second. My old timing belt really looked terrible, and I'm very glad I replaced it before it failed.

 

[Kigiin]

I read somewhere (here, I think) recently that Toyota originally had the TB replacement at 120K.

 

[srkpaco]

Thanks, marshotel, Yes that does make me feel better. I am over it now and glad I did all the maintenance to my LC, it will run forever.

BTW, that is a good album, it has a good "Unbroken Chain" on it.

 

[OregonLC]

I read somewhere (here, I think) recently that Toyota originally had the TB replacement at 120K.

Wonder why they lowered it? Dealer profits down?

 

[pwcummings]

If it makes you feel any better:

I just changed the timing belt in my new-to-me 1998 Land Cruiser at 187k miles. The old belt was really in bad shape. It must have been the original belt. I feel lucky to have changed the timing belt before it broke, which likely would have totalled the vehicle.

The rubber on my old timing belt was cracked all the way through and starting to disintegrate. The woven material in the belt was frayed in several places, and some of the rubber teeth were worn down. It looked like it was about to fall apart at any second. My old timing belt really looked terrible, and I'm very glad I replaced it before it failed.

Nothin a little plastidip couldn't fix... Shiiiiiiiiiiiat

Sent from my iPhone using IH8MUD

 

[MGS88]

My TB was failing at 115k mile when I was cruising at around 75 mph and the car just slowed down while the engine runs perfectly

I heard that engine failing depends in the construction of the timing beltIf that happens to a 90s camry you will definitely say R.I.P to your engine

About the earlier failing that because TB passed 10 years and we get in my city high temps in some days, like low 50s degree even tires cant make it

 

[BamaHeel]

My TB was failing at 115k mile when I was cruising at around 75 mph and the car just slowed down while the engine runs perfectly

Am I misreading this or are you saying that you personally have a 100 which had a timing belt failure at 115k while you were driving 75 mph and there was no damage to your engine?

 

[mudgudgeon]

That is the old belt, it's already in the garbage. I guess I was just expecting to see a bit more wear and tear.

Correct Trunk Monkey on the maintenance, I now have piece of mind and know I am good for another 100K or more. If feels good to take care of your vehicle.

I pulled a timing belt from mine that looked good until it was beside a brand new one, then it was obvious the teeth on the belt had worn down about 1mm. I calculated that this would equate to approx 2-3degrees change in camshaft timing.

 

[OregonLC]

96k and no appreciable wear.

 

[MGS88]

Am I misreading this or are you saying that you personally have a 100 which had a timing belt failure at 115k while you were driving 75 mph and there was no damage to your engine?

That's right

 

[paflytyer]

That's right

I think you're incorrect. Timing belt wouldn't be "failing", its either together, or not. If it breaks, it would be total engine failure with the not so sweet sound of metal hitting metal. The piston would strike the open valve. The 4.7l we have is an interference engine.

 

[OregonLC]

That's right

I think your mechanic may have lead you down a dusty trail on this one. The belt is binary; it's either broken and you're toast or it's functioning and you're running fine. There is no slow-down mode.

 

[Musky]

My timing belt in my 100 series looked pretty good at about 115,000 miles.

To make you feel better when I lived in Utah when I was a kid my Toyota Supra timing belt snapped like a dried out twig at 140,000. It cost me a fortune to have some old german mechanic put my motor back together.

It's definetly worth the piece of mind. Now you're set for 5-10 years.

 

[Jap8]

Not so much wear I would be worried about on a timing belt, it would be internal fatigue, this is where the strength comes from, the fibre reinforcing within.
It may be fine visually, but that really does not tell the story.
Mine has 145 thousand km on it now (is that like 90 thousand miles?), I believe the service interval is 150 thousand here for the belt.