First timing belt change advice

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Thread: First timing belt change advice

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    Default First timing belt change advice

    I have 99,500 miles on my 2001 Tundra 4.7L, and will be having my timing belt replaced. What other components are recommended to have replaced at the same service time? I will be replacing the water pump for sure. I want to replace any related parts, so I wont have to deal with it until the 200k belt job. I also find it interesting that the Toyota service employee told me this engine was NOT an interference engine. I asked in plain English if the timing belt breaks, am I looking at a replacement engine. The answer was NO, the belts will most likely melt, cause a big mess, but the engine will be fine. He said the Toyota interference engines All use a timing chain, not a timing belt. For a second, I breathed a sigh of relief, but I still think a broken belt will destroy this engine. Am I right? Or will the trucks engine survive a broken timing belt?
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    Default re: First timing belt change advice

    Cam/crank seals, idler pulleys, tensioner.

    The dealership is dumb telling you it's not an interference engine. Bring it to an indie shop if don't plan to DIY.
    04 Lexus LS430 3UZ-FE V8
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    Default re: First timing belt change advice

    after working on these trucks since the original launch, i've yet to see a belt failure. never witnessed an oil leak from front engine seals either. my original 2000, 175k, does not leak a drop of oil anywhere. this 4.7 is the most reliable engine in the toyota lineup. you will be just fine with a belt and pump, throw an accessory belt on too.

    as for the writer, he's a salesman, not a trained technician.
    talvar likes this.

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    Default re: First timing belt change advice

    You're at nearly 100k and this is the first belt you've replaced? Doesn't the manual call for this to be done at 60k miles? I'm at 51,800 miles now and already starting to prepare myself to change the belt/pump in less than 10k miles. If I could let it go a bit longer...even stretch it out to 100K miles that would be super.
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    Default re: First timing belt change advice

    Quote Originally Posted by JustTom View Post
    You're at nearly 100k and this is the first belt you've replaced? Doesn't the manual call for this to be done at 60k miles? I'm at 51,800 miles now and already starting to prepare myself to change the belt/pump in less than 10k miles. If I could let it go a bit longer...even stretch it out to 100K miles that would be super.
    Timing belt should be replaced every 90k miles per Toyota....you're still good for quite some time.
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    Default re: First timing belt change advice

    Quote Originally Posted by TRDSport View Post
    Timing belt should be replaced every 90k miles per Toyota....you're still good for quite some time.
    Thanks for the heads up on that. I'm so relieved to hear this news. Lately it seems I've been spending money left and right for various things, so I'm glad this is one which can wait a while longer.
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    Default re: First timing belt change advice

    Quote Originally Posted by alpineglen View Post
    I have 99,500 miles on my 2001 Tundra 4.7L, and will be having my timing belt replaced. What other components are recommended to have replaced at the same service time? I will be replacing the water pump for sure. I want to replace any related parts, so I wont have to deal with it until the 200k belt job. I also find it interesting that the Toyota service employee told me this engine was NOT an interference engine. I asked in plain English if the timing belt breaks, am I looking at a replacement engine. The answer was NO, the belts will most likely melt, cause a big mess, but the engine will be fine. He said the Toyota interference engines All use a timing chain, not a timing belt. For a second, I breathed a sigh of relief, but I still think a broken belt will destroy this engine. Am I right? Or will the trucks engine survive a broken timing belt?
    I am going to do my own service on the timing belt very soon. Have almost all the parts and need a good window of weather and I'm in. I am changing out the WP, timing belt, timing belt tensioner, tensioner roller, idler roller, theromstat, and the serpentine belt. I will probably leave the seals alone. This will save me over $1,000.00

    I am also going to replace the spark plugs, clean the throttle body and probably do the fluids in the differentials and the transfer case. Another $200 - $300 in savings


    Oh yeah... and if you do some research you will find that the 2UZ - FE is in fact, an interference engine. The guy you spoke with should know better... your motor would be toast if you were driving it while the belt snapped.
    Last edited by Dinosaur; 04-02-2012 at 10:54 PM.
    Rob K.

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    Default re: First timing belt change advice

    Replacer mine for the first time on my 03 at 148k.

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    Default re: First timing belt change advice

    Quote Originally Posted by Dinosaur View Post
    I am going to do my own service on the timing belt very soon. Have almost all the parts and need a good window of weather and I'm in. I am changing out the WP, timing belt, timing belt tensioner, tensioner roller, idler roller, theromstat, and the serpentine belt. I will probably leave the seals alone. This will save me over $1,000.00

    I am also going to replace the spark plugs, clean the throttle body and probably do the fluids in the differentials and the transfer case. Another $200 - $300 in savings


    Oh yeah... and if you do some research you will find that the 2UZ - FE is in fact, an interference engine. The guy you spoke with should know better... your motor would be toast if you were driving it while the belt snapped.
    Add a tube of RTV sealant to that list. I just did mines a couple of weeks ago on a newly aquired 04 DC with 151k miles. The cams/crank seals didn't leak so I left that alone. And yes the 4.7L V8 is an interference engine!
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    Default re: First timing belt change advice

    I replaced the hoses at the same time since the radiator will be taken out.
    Gatorman76 and rws1145 like this.

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    Default re: First timing belt change advice

    Quote Originally Posted by main70072 View Post
    Add a tube of RTV sealant to that list. I just did mines a couple of weeks ago on a newly aquired 04 DC with 151k miles. The cams/crank seals didn't leak so I left that alone. And yes the 4.7L V8 is an interference engine!
    Yes... that is on the list.

    Thanks.
    Rob K.

    2006 DC, SR5, 4.7L, 5 speed, 4WD, LSD, Silver Sky Metallic, Keyless Entry, Tow Package
    Rackit (powder coated), Leer 100 w/Windoors, Westin wheel to wheel step bars
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    Powerslot cryo rotors, Hawk HD pads
    Bedrug, Slide Master bed-slide, Pop & Lock, Scangauge II, Viper 5601, MB Quart Speakers
    Toyo ATIIs 265/70/17 10 ply / Michelin LTX 265/70/17 Es
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    TC steering rack bushings, TC diff drop, Downey end links, Kartec CV boots


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    HD front bumber (Reuenal or ARB), Mile Marker Winch




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    Default re: First timing belt change advice

    I did this a couple of years ago.....
    Gonna Change The T~Belt.....Today
    There are a few "O" rings that will need replacing....I also did the tensioner, idler pulleys, T-stat as well as the new H2O pump and Toyota Anti-Freeze.
    It's not too terribly difficult to do....but there are LOTS of parts, nuts, bolts, brackets to remove and replace.
    Take your time, take pictures, label your parts (if that helps you..it does me!)
    Let me know if you want the FSM pages for the T Belt and I'll post 'em.
    JAYMATIK likes this.
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    Default re: First timing belt change advice

    Thanks. There was another timing belt thread recently that we posted in.

    Help me out. Timing belt replacement troubles

    One of us TS folks (mibro) posted notes on the job. I DLd those and I have the FSM so I am feeling pretty good to go. I will be glad to get the WP off there. I saw coolant seepage under it a while back. And, I am looking forward to cleaning the throttle body hoping it will make a difference in how she is running. Lately there has been a lower than normal idle at times.
    Rob K.

    2006 DC, SR5, 4.7L, 5 speed, 4WD, LSD, Silver Sky Metallic, Keyless Entry, Tow Package
    Rackit (powder coated), Leer 100 w/Windoors, Westin wheel to wheel step bars
    Air lift Ride Control w/Quick Shot and Onboard Air, Bilstein 5100s (middle notch), Wheeler's AAL
    Powerslot cryo rotors, Hawk HD pads
    Bedrug, Slide Master bed-slide, Pop & Lock, Scangauge II, Viper 5601, MB Quart Speakers
    Toyo ATIIs 265/70/17 10 ply / Michelin LTX 265/70/17 Es
    Racor remote transmission filter, All Amsoil synthetic lubricants


    Waiting to be installed:
    Eclipse Amp,
    TC steering rack bushings, TC diff drop, Downey end links, Kartec CV boots


    Wish List:
    Headers, SS exhaust system, Sliders, Spidetrax
    HD front bumber (Reuenal or ARB), Mile Marker Winch




    "If there are no dogs in Heaven, then when I die I want to go where they went." Will Rogers, 1897-1935

    Treat others as you would like to be treated

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    Default re: First timing belt change advice

    Thank you for all the responses! This helps a lot. So I understand the 4.7L is definitely an interference engine. Can't believe the guy behind the Toyota service counter told me otherwise. In all my searching, I haven't read about any broken timing belts under 150K miles, but I don't want to be the first either. I have a good friend professional mechanic that will be doing this job for me. He has a 2000 Tundra, and is very good at what he does. I think I might wait until the 200K mile mark to replace the hoses though. Toyota parts dept doesn't even stock the pullies, and they don't recommend replacing them either. I was going with OEM Toyota parts all the way. Hopefully, this is my last question: Does anyone know of a higher quality timing belt kit for aftermarket? Or are the Toyota OEM parts the best. I'm not as concerned with price, as I am about reliability and quality. Thanks for everyone's advice on this too!!!

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    Default re: First timing belt change advice

    These are the best kits money can buy, choose the amount of parts you want to replace!

    Basic kit
    Premium Kit
    Ultimate Kit

    If you are buying them yourself, this is really the only way to go. Everything is OEM (or OEM quality) just rebranded to reflect the manufacturer that actually produces them for toyota
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