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Timing Belt replacement signs?

Discussion in '100-Series Cruisers' started by greglomax, Feb 25, 2004.

  1. greglomax

    greglomax

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    I just bought a 98 LC in immaculate shape. :D It has 80,000 miles on it, but looks like it should only have 20,000. Luckily the brakes were done right before I bought it. I am trying to anticipate other things that will need to be repaired. The timing belt replacement seems to be something that needs to be done around 90,000 miles. What are the signs that this needs to be done, or are there any signs before you have problems?

    Also,
    I am not sure when the fuel filter was last changed. Is it easily accessible? How about the fuel pump? Is it prone to needing replacement and if so, is it easily accessible? I had a Tahoe prior to this and the fuel pump was in the gas tank, which cost $600 to replace.

    Any help or tips would be greatly appreciated. I look forward to putting another 100,000 on this vehicle.

    Thanks
     
  2. turbocruiser

    turbocruiser SILVER Star

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    I dont know of any obvious signs that a timing belt is ready to replace other than the mileage interval indicated in your owner's manual. This is something that should be replaced by the recommended interval; not worth waiting cause if it snaps, it really screws things up.
     
  3. Landpimp

    Landpimp

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    I am still waiting for my FSM but to me it looks like the fuel filter sit on the dirver side fender, should be no biggy to replace, but you want to depresurize the fuel system. Not sure what the change interval is, prolly 90K.

    timing belt, just do it at 90k to be safe.

    congrats in the 100 :) I am loving mine.
     
  4. BillWms01

    BillWms01

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    Like turbocruiser said, since it's not visible, I think the only thing you can go on is Toyota's recommended 90k mile trigger.

    As for the consequences for a failure, I've seen conflicting information as to whether the 4.7L V8 is interference or non-interference. My dealer's Service Manager told me it was non-interference, so I suspect the consequences of a failure is leaving you needing a tow at an inopportune time/place.
     
  5. Landpimp

    Landpimp

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    I was told it was interference....right I dunno ;)
     
  6. DMX84

    DMX84

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    Good choice, glad to see you got rid of the Tahoe, :D I had one; it was a ’99 with 66k. I traded my ’89 FJ62 for it. :-\Selling points the ’97 Land Cruiser was too expensive & hard to find & the parts are easy to get for the Chevy. (Plus the wife liked it.) Worst mistake in my life! (Still trying to recover from that one) I worked on that Tahoe more in one year than the 10 years I owned the LC!(It had 220,000miles on it when I sold it) I’m Not talking about the normal wearing stuff either. That Chevy 350 was JUNK! They must have spent lots of time trying to figure out to make it problematic. They had engineers sitting around thinking of this stuff “we’ll use a coolant that won’t need replacing until 100K” and another engineer saying “And we’ll make some of the components susceptible to corrosion, so after warranty it will fail.” “Good thinking & we will make it a NAFTA special.” (North American Trade Agreement) That’s why you need two tool bags for it! SAE & Metric. :flipoff2: You would think after 30 years of production that the 350 would be a great engine. ??? Suppose that’s why they use a different engine now? I’m into making something better/stronger & with the Tahoe I was just trying to keep it going. Besides it was horrible off road. Totally unreliable in my opinion & nobody wants them after 100K! :ban:
    WHY?
     
  7. cruiserdan

    cruiserdan SupportingVendor Emeritus Moderator

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    I don't think I would wait for valve-to-piston contact. A set of 32 valves, sitting on the counter, before you install them, runs $521.28 :eek:
     
  8. greglomax

    greglomax

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    I agree that I do not want to wait until damage is caused, but in the 6 vehicles I have had with over 100,000 miles, this has never been one of the things that I have had to deal with. Albeit, those vehicles had long lists of other things that went wrong like alternators, water pumps, fuel pumps, windshield wiper motors, etc. What is the commonality of the timing belt breaking and causing damage? I guess what I am getting at is, is there a pressing need to change it at 90,000 miles, or can it wait until 100,000+ miles? I can't believe that a LC is more susceptible to having the timing belt break than my 97 Tahoe was, and it had 128,000 miles on it when I traded it in last week. I definately want to make plans to do this some time this year, I just want to have some idea of how pressing an issue it is. Thanks for any feedback you can give.
     
  9. BillWms01

    BillWms01

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    Definitely interference, huh? :(

    I thought most (all?) Toy engines with timing belts were non-interference, unlike some other makes (Honda, etc.). That's a lot of $$ riding on a belt not breaking.

    I guess they've demonstrated that reliability of the belt within its 90-100K mile life is up to Toy standards.
     
  10. Landpimp

    Landpimp

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    was just talking to a guy in my office, he has a LS400, I asked if he had done the timing belt....he said nope :(

    I drove my accord to 130k and didn't do the belt

    but at 90k on the Cruiser and am doing the belt!
     
  11. tabraha

    tabraha Hello My Name is: TAD SILVER Star

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    Yup, the first sign is the only sign you get. It's the sound of your engine farting valves out of the tailpipe :'(

    There is another recent thread that has the pricing alot of us have received lately so you can make sure your wrench is in line with the $$$. I did the main belt and some other misc. stuff while it was torn down that far. As far as mileage, yeah you can PROBABLY get 100k without much worry. It was too much worry for me though.


    Tad
     
  12. turbocruiser

    turbocruiser SILVER Star

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    [quote author=greglomax link=board=2;threadid=12047;start=msg110348#msg110348 date=1077744937]
    I agree that I do not want to wait until damage is caused, but in the 6 vehicles I have had with over 100,000 miles, this has never been one of the things that I have had to deal with. Albeit, those vehicles had long lists of other things that went wrong like alternators, water pumps, fuel pumps, windshield wiper motors, etc. What is the commonality of the timing belt breaking and causing damage? I guess what I am getting at is, is there a pressing need to change it at 90,000 miles, or can it wait until 100,000+ miles? I can't believe that a LC is more susceptible to having the timing belt break than my 97 Tahoe was, and it had 128,000 miles on it when I traded it in last week. I definately want to make plans to do this some time this year, I just want to have some idea of how pressing an issue it is. Thanks for any feedback you can give.
    [/quote]

    Hi, this is not intended to sound rude at all so please do not take it that way but you are missing the point...Toyota recommends the 90K interval for a reason and that is probably that almost all vehicles that change the belt by 90K will not need worry with the consequences of breakage. The 100 V8 engine is MOST DEFINITELY an interference engine! If your timing belt breaks you are SOL cost wise. I understnad that you have had heaps of vehicles (intended reference to the tahoe) where the timing belt did not break but again, you are missing the point, what if it did? The LCs are not any more prone to timing belt breakage but this is designed to be a replaceable part that is replaced with regularity, do not risk your otherwise wonderful V8 engine, get the belt at 90K and no later, every mile past 90K is one mile closer to terrible troubles. JMHO. HTH
     
  13. e9999

    e9999 You want to do what...? Moderator

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    Generic question (applicable to other topics) but this thread is perfect:

    Let's assume that the rig is out of warranty and it has 85k mile, say, i.e. before the timing belt is supposed to be changed. It breaks...! What would Toyota's position be, you think:
    - sorry, you're SOL!
    - this shouldn't have happened, we'll fix it for ya!
    ?

    If the former, would one have a case to argue forcefully that they should fix it because it broke before "its time" ?

    just curious
    Eric
     
  14. cruiserdan

    cruiserdan SupportingVendor Emeritus Moderator

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    The outcome would depend a great deal on the service history of the vehicle and your relationship with your dealer. Since the vehicle would be past it's warranty coverage any participation by Toyota would be weighted by the service record of the vehicle.

    Think of it like this:
    Vehicle #1 is bought and is driven off the lot never to return for service or parts. Zipper Lube and Joey's garage work on it.
    Vehicle #2 is serviced regularly by a dealer, maybe even somewhat irregularly.

    Which one do you think would have a better chance?

    :beer:
     
  15. e9999

    e9999 You want to do what...? Moderator

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    well sure, but my question was more along the line of
    "what if a part is supposed to be changed only at XXX miles and it breaks before then?"
    you would think that they should replace it "pro bono" since it did not meet the design guidelines...
    Have there been examples of this?
    E
     
  16. cruiserdan

    cruiserdan SupportingVendor Emeritus Moderator

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    I have not heard of one. I have not seen a failed V8 t-belt at all. I have seen some others that have come apart but they were all WAY past replacement time.

    It is logical to assume that any published maintenance interval for any vehicle system would have a "cushion" of some sort in it. It would not be prudent for a manufacturer to "push the envelope"

    D-
     
  17. uzj100

    uzj100

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    Lets take this one step further. My truck is covered under the toyota certified program (engine & powertrain covered to 100k miles) so could I get away with waiting to 99k miles or would they say you did not follow the recommended service interval.

    I would not do that but I am sure their are some folks out there with certified toyotas that probably would just wait.

    I am getting the following done at 90k miles
    replace t-belt
    replace accessory belt
    replace water pump
    replace any oil seals
    replace engine coolant with new (if not requested they will catch your old coolant and reinstall)
    tranny flush
    replace spark plugs
    already replaced all diff fluids with synthetic @ 78k miles

    Later,

    uzj100
     
  18. e9999

    e9999 You want to do what...? Moderator

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    well, personally, I would change it at a tad before 90K with or w/o warranty coverage.
    Either way you are covered or are out the same amount.

    Let's say you have warranty till 100K and don't change the belt at 90K. Engine explodes at 99K due to belt failure. It would not be unreasonable for Toyota to assert that you invalidatd the terms of the warranty due to failure to abide by recommended maintenance interval, and bam! they are off the hook... You're SOL. You'd have a hard time arguing against that, I'm afraid.

    E
     
  19. cruiserdan

    cruiserdan SupportingVendor Emeritus Moderator

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    [quote author=e9999 link=board=2;threadid=12047;start=msg111017#msg111017 date=1077817430]Let's say you have warranty till 100K and don't change the belt at 90K. Engine explodes at 99K due to belt failure. It would not be unreasonable for Toyota to assert that you invalidatd the terms of the warranty due to failure to abide by recommended maintenance interval, and bam! they are off the hook... You're SOL. You'd have a hard time arguing against that, I'm afraid.

    E
    [/quote]

    Correct, Warranty coverage requires maintenance records be maintained and provided on request. No record, no responsibility.
     
  20. DMX84

    DMX84

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    I agree with e9999. Replace it before it’s time.
    I know on my VR4 Galant (interference motor) the book says to replace the timing belt at 60K. It’s widely known in the VR4 community that it needs to be done at 45K.
    With all the advantages of the duel-overhead cam, changing the belt is not a big deal.
    And your ‘97 Tahoe used a chain. Although the chain did last a long time, the problem is that it stretched causing slight timing variances. The belt design keeps the valve timing spot on. And if you need to really get precise, there is an adjustable cam pulley for fine tuning on some applications. On some high performance applications they do away with the chain and add gear drive systems. greglomax, you can’t go wrong with a Land Cruiser. The belt is a minor deal, if you really think about it. Most people will only change the belt once before they sell it. You got a really nice deal on a supper Land Cruiser. Replace the belt and you won’t have to worry about it for a long time. The’98 is one that I am looking at to purchase. :D
    Also, were else can you find a bunch of guys that love nothing more than talking about Land Cruisers! I doubt that there is a BB for Chevy Tahoe’s that even comes close to this one!
    Welcome aboard greglomax :beer:
    DMX