Broken Timing Belt Confirmed

[jgray]

My 100 Series, now with 204K+ miles left me stranded yesterday in the pouring rain in the middle of the interstate. I felt a complete loss of power climbing out of the Norfolk downtown tunnel yesterday and coasted just between merging lanes of interstate traffic. After unsuccessfully getting it to turn over and basic troubleshooting with my onboard tools I got towed her home. Got the hundy back to town late last night via a friends flat bed tow truck.

This seems to be a rare occurrence with 100's so reporting this to add me as an unfortunate statistic. I did the timing belt and all other recommended maintenance at 134K miles. I've put just over 70K miles on since the last timing belt replacement (OEM Toyota parts of course). I will report more as we tear in and further investigate the cause. Heads are being pulled now.

 

[Lx470iH8Mud]

Very sorry to hear this, hope no real damage has occurred. Waiting in anticipation to hear what went wrong.

 

[OregonLC]

Did you do a compression test before you pulled the heads. As far as we know the 2UZ is an interference motor, however one other member did report a broken belt with no other damage. As hard as that is to imagine.

 

[Skidoo]

Seems too short of life. Check the usual suspects; water pump seal leaking, belt idler wheel bearing shot, tensioner failure, rock or broken metal piece got in belt chamber.

 

[phsycle]

Did you do the repair or Toyota? Haven't heard of too many Toyota timing belts breaking before the 90k mark.

 

[hoser]

Seems too short of life. Check the usual suspects; water pump seal leaking, belt idler wheel bearing shot, tensioner failure, rock or broken metal piece got in belt chamber.

Yes, my understanding is most all timing belt failures are actually caused by idler or tensioner failures. Confirming, those were replaced at the same time of t-belt service?

 

[re_guderian]

I missed the confirmation. Disassembled already?

 

[onpoint01]

Sorry to hear that..

Please take some pictures of the finds and post for us all.

 

[e9999]

sorry
first one I remember reading about here

 

[APKhaos]

That sucks boots. Very sorry to hear this, and like others its the first time I've heard a timing belt failure reported.
Please take a careful look at the idlers, pulleys, and WP to try to get a picture of the failure process. Highly doubtful that the belt itself failed without another component ripping it up. If you find it, at least something positive will come out of this.

 

[2000UZJ]

Kennyao's timing belt looks pretty bad after a short life. Did they use a OEM belt?

 

[SWUtah]

My 100 Series, now with 204K+ miles left me stranded yesterday in the pouring rain in the middle of the interstate. I felt a complete loss of power climbing out of the Norfolk downtown tunnel yesterday and coasted just between merging lanes of interstate traffic. After unsuccessfully getting it to turn over and basic troubleshooting with my onboard tools I got towed her home. Got the hundy back to town late last night via a friends flat bed tow truck.

This seems to be a rare occurrence with 100's so reporting this to add me as an unfortunate statistic. I did the timing belt and all other recommended maintenance at 134K miles. I've put just over 70K miles on since the last timing belt replacement (OEM Toyota parts of course). I will report more as we tear in and further investigate the cause. Heads are being pulled now.

Sorry about that, like to hear all the facts? Did you do the work? What replaced? What caused failure of the belt? This could be a valuable thread.

 

[twentyocho]

First time I read on a belt failing period! Hopefully no major damage was done and you get her back up and running.

 

[OGBeno]

I want to see pics of the belt. I also want to hear maintenance history.

Let's get some empirical facts. Let's tear this sucker down.

 

[BullElk]

First time I read on a belt failing period! Hopefully no major damage was done and you get her back up and running.

I have seen similar statements before regarding the timing belt. If timing belt failure is soooo rare then maybe we should ask why are we so adamant about changing belts at 90k miles?

 

[APKhaos]

Thrill seekers among us have changed them a bit later than that. Mine was changed at....ummm......230K miles.
Still have the original belt, which is in decent shape. Posted pics of it a while back on one of the TB DIY threads.
Don't try this at home, OK?

 

[SmoothLC]

^^ what beno wrote.

The TB on mine was changed much latter then intended (not 230k, but significantly higher mileage than scheduled) due to a miss-communication between me and my mechanic.

Post some details when you have time.

 

[suprarx7nut]

Definitely interested in seeing how it failed. It's rare to hear of nearly anything letting loose on the 100 series, let alone something so vital.

 

[kennyao30]

Kennyao's timing belt looks pretty bad after a short life. Did they use a OEM belt?

Yes mine was very cracked when I replaced it at 187k. Belt had 85k on it.

Sorry to hear about your t belt. Hope it turns out okay.

 

[jaysdead40]

Replaced mine at 150,000 no cracks no fraying.