35,000 miles and 11+ years on belts! | FerrariChat

35,000 miles and 11+ years on belts!

Discussion in 'Technical Q&A' started by Mike C, Mar 16, 2006.

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  1. Mike C

    Mike C F1 Veteran
    Lifetime Rossa Owner

    Aug 3, 2002
    6,081
    Southeast USA
    Full Name:
    Mike Charness
    I just did my 60K service on my USA 308QV. Last major service was more than 11 years and 35000 miles ago after I first bought the car. Yes, I know things CAN go wrong sooner, and there's lots of scare stories, but I drive my car regularly and hard, including track days, and my garage is heated when the winter weather is at its worst. My car is well-maintained, but not babied.

    I thought I'd share my observations now that the 60K has been done (and the car *is* just about to hit 60,000 miles). After the old belts came off, we gave them a thorough examination -- and they look perfect... no cracking, still supple. All the various o-rings and seals were good, but definitely felt stiffer than the new ones that went in. Valves were PERFECT, no adjustment necessary. Cam timing was just a little bit off and so was re-adjusted. The tensioner bearings felt and sounded ok, but they both have indications that they've been throwing a little grease, so in my case changing them was good preventive medicine.

    While we were in there, we were trying to find an exhaust leak that we presumed was coming from the front header bank. It sort of was, but not really... it was a piece of that exhaust analyzing pipe assembly that had broken off. I presume it's primarily an age/vibration thing. It's broken in such a way that it can't be welded... too much is missing, so I'm going to have to buy another assembly.

    Unrelated, in doing tech for my upcoming track event, we also found a crack in a rear a-arm where the anti-roll bar attaches, which was no problem rewelding.

    No other surprises! These cars do NOT need to be babied.
     
  2. greg328

    greg328 F1 Rookie

    Nov 17, 2003
    4,209
    Austin, TX USA
    Full Name:
    Greg
    Interesting, thanks Mike.

    Greg
     
  3. LP400S

    LP400S Formula 3

    May 18, 2002
    1,223
    West Coast
    When I did my 308's a about year ago they were also about 10 years old and had only 5k miles on them.I examined them and they looked almost like new when I took them off.
     
  4. Dr.T348

    Dr.T348 Formula 3

    Jan 8, 2004
    1,599
    Chicago NW Burbs
    Full Name:
    Richard T.
    I did my 308 30K major in '01. 13 years and 12,000 miles. Similar in that the belts that came off looked new. No timing issues.

    How long can you reasonably go before interval change? I think it's safe to say 3 yrs./3000 miles is making the dealers alot of money!
     
  5. LP400S

    LP400S Formula 3

    May 18, 2002
    1,223
    West Coast
    My buddy just changed the timing belts on his Audi A6 for the first time at the factory recommended 103,000 miles!!
     
  6. PassionIsFerrari

    PassionIsFerrari Formula 3

    Aug 15, 2004
    2,454
    6 years and now I am going to have REPLACE the motor in my 348... I guess the 308's are a lot my hearty then the 348's when it comes to belt life.
     
  7. tbakowsky

    tbakowsky Two Time F1 World Champ
    Consultant Professional Ferrari Technician

    Sep 18, 2002
    20,034
    The Cold North
    Full Name:
    Tom
    doing a service right now on a 98 355F1..all original..factory belts still on the car...conditon is not good...27.000km. Can;t find my camera or i would post pics..
     
  8. Modificata

    Modificata F1 Rookie

    Apr 27, 2003
    2,654
    Hampton, England
    Full Name:
    Andy Rasool
    Thanks for that. Anyone know if V12 belts wear out faster than V8 belts?
     
  9. WaltP

    WaltP Formula 3

    Nov 1, 2003
    1,512
    Cape Canaveral/Atlanta
    Full Name:
    Walt P
    Mike, you may want to just put a plug in place of that broken pipe.
     
  10. BigAl

    BigAl F1 Veteran

    Mar 17, 2002
    6,146
    TX
    Full Name:
    GSgt Hartman
    good question. kind of like other things, yeah, you might be able to go that long without replacing them, BUT if they do break, you'll have MAJOR problems. I think 11 years was living on borrowed time and a little risky.
     
  11. Mike C

    Mike C F1 Veteran
    Lifetime Rossa Owner

    Aug 3, 2002
    6,081
    Southeast USA
    Full Name:
    Mike Charness
    Not a bad thought, actually... we've never had to use them!
     
  12. WaltP

    WaltP Formula 3

    Nov 1, 2003
    1,512
    Cape Canaveral/Atlanta
    Full Name:
    Walt P
    Likewise, never used them. When 2 of the rear ones rusted off I welded the hole closed but when a front one went I removed the header and had a machine shop remove the rusted pieces. Then I but the correct size plugs in so it could be put back to origional if anyone wanted to in the future.
     
  13. Rifledriver

    Rifledriver Three Time F1 World Champ

    Apr 29, 2004
    37,288
    Cowboy Capitol of the World
    Full Name:
    Brian Crall
    I use analyzer pipes all the time. For people that know how exhaust analysis is one of the most valuable diagnostic tools available and that is why Ferrari put them there.

    On the 5/8 bank installing a new set will be expensive and time consuming. It is also a very real pain in the butt even with the exhaust manifold in your lap because the new analyzer manifold for that bank is not only very expensive, it is incorrectly made and the tube spacing is wrong.

    Also the fact that they break off and plug up constantly is because they used the wrong material and they corrode badly from the inside out.

    Bottom line: Great idea, poor execution.
     
  14. wcelliot

    wcelliot Formula Junior

    May 7, 2004
    577
    Maryland, USA
    Full Name:
    Bill
    When I bought it, my '78 308 had only about 5000 miles (but almost 10 years!) on the belts. I negotiated the price of the service into the deal and took delivery of the car AT the shop where the seller and I agreed to have the work done.

    While the belts still looked almost perfect after all those years, one of the tensioners came apart in the tech's hand when he removed the belt... so my fears were well justified.

    Bill
     
  15. dakharris

    dakharris Two Time F1 World Champ

    Jun 7, 2001
    29,441
    Sleepy Hollow
    Full Name:
    Cavaliere Senzatesta
    Been there. Done that. Welded one. Replaced one.
     
  16. Verell

    Verell F1 Veteran
    Consultant Owner

    May 5, 2001
    7,022
    Groton, MA
    Full Name:
    Verell Boaen
    Sorry, but that's no proof that the tensioner was bad.

    Tensioner bearings are very fragile while the two inner races aren't solidly clamped together. When the inner races aren't clamped, the only thing holding the tensioner together is the two plastic seals in the outer race. Even new ones will come apart in your hands with surprisingly little force.

    One of the more common first time tensioner installation errors is to start pushing it on, getting it stuck because the first race to go on is cocked a bit, then trying to pull it off by the outside of the bearing: Instant expensive handfull of loose bearings, races, & seals!
     
  17. ROLOcr

    ROLOcr Formula Junior

    Oct 25, 2005
    619
    Costa Rica
    Full Name:
    ROLO
    a costumer of ours has a mondial T with less than 10.000 km on it and has never replaced the belts, he ordered them (2 years ago)and we have them but he never broutgh the car to service, still wainting for him, HOPE THEY DON'T BREAK
     
  18. jim frank

    jim frank Karting

    Mar 29, 2006
    122
    florida
    Full Name:
    jim
    the dealer told me my 03 360 just bought with 1600 miles onit and with the "book" calling for belt change no longer than 36 months,I should probably change it in that time period but he feels the belts are the same as on every other car and should last for many more years than that. the reasonfor 3year dateing is probablyto get the dealers more income. sad situation as the cost apparently is over $4000.
     
  19. Gilles27

    Gilles27 F1 World Champ

    Mar 16, 2002
    13,337
    Ex-Urbia
    Full Name:
    Jack
    It's good to hear stories like these. What sucks is when you go to sell the car, just about the only thing that matters are the belts. Mine were done over three years ago, and after 7000 miles they're still in great shape.
     
  20. Mike C

    Mike C F1 Veteran
    Lifetime Rossa Owner

    Aug 3, 2002
    6,081
    Southeast USA
    Full Name:
    Mike Charness
    Michael Everson here on FChat asked me to ship him my old belts and tensioner bearings -- and is going to do a little "destructive stress testing" to see how they hold up! Should be interesting to get the statistics...
     
  21. Iain

    Iain F1 Rookie

    Jan 21, 2005
    3,352
    UK
    Then he's lucky. Lots of VAG engines don't make it to the prescribed limit - some of the earlier belt tensioners were "spawn of the devil"! Its been so bad that there's been a class action against Audi in the states for belt failures - and they are paying out.....

    I.
     
  22. don_xvi

    don_xvi F1 Rookie

    Nov 1, 2003
    2,934
    Outside Detroit
    Full Name:
    Don the 16th
    Is there still visible evidence of where it had to be welded? I may be the only one interested in that comment, but I'd like to see a pic of where to inspect mine at !
     
  23. Mike C

    Mike C F1 Veteran
    Lifetime Rossa Owner

    Aug 3, 2002
    6,081
    Southeast USA
    Full Name:
    Mike Charness
    #23 Mike C, Apr 15, 2006
    Last edited by a moderator: Sep 7, 2017
    Rather than crawl under the car and take a photo, here's the parts book diagram that shows the rear a-arm (wishbone) and the welded on attachment for the anti-roll bar. The one on the passenger side of the car cracked along the line I've drawn in red.
    Image Unavailable, Please Login
     
  24. Artvonne

    Artvonne F1 Veteran

    Oct 29, 2004
    5,379
    NWA
    Full Name:
    Paul
    I guess I dont get the point of this thread. Mike, your a FCA member, and a Fchat administrator, are you now advocating that we all go 11 years and 35K miles on 308 belts? The engines in an airliner are required to be replaced with overhauled units at perscribed hourly intervals regardless of how well they are running, in an effort to prevent a failure. Perhaps some of you would feel just as safe flying on one if they extended that hourly rate 3000 hours past the Time Before Overhaul limit prescribed by the engine manufacturer? I would not.

    Just because something goes farther than it was supposed to, does not automatically push the limit up for all the other parts produced. For example, you could use rope or chain. When you buy it new it is marked on the package as to maximum test strength, and working load. Working load may only be 1/4 to a 1/3 of its actual test strength. But any rope or chain that has exceeded its working load to anywhere near its test strength, is automatically rejected by industry because its now weaker.

    There have been so many belt failures on these cars, and those failures have brought financial ruin to some, to the point of selling the car and leaving Ferrari forever, that I think we should all rise up and admit that the darn belts do in fact break and agree they need changing at a shorter interval. This is what I would recommend to anyone I knew or who asked my opinion about a Ferrari.

    A month and a half ago a 348 owned by a Fchatter stripped a belt in Miami. bent all the valves, many thousands of dollars to fix, maybe no car all summer. He initially thought of just dumping the car.

    A week ago a 355 with 18K miles and 7 years since service stripped a belt. many more thousands of $$$$$ and probably no car to drive all summer.

    Two months ago Spirot, a Fchatter in Atlanta, stripped a belt on a 308 with about the same mileage and time as the 355. Cost him a lot of money and over two months with no car. He fixed it himself, car is for sale.

    R. Lyndsey from the old Flist striped a belt on a 308 that was about 4 years and 14K miles from service. Cost him over $15K and six months without the car, and he sold the car never to own a Ferrari again.

    The belts dont generally break, they shear off teeth, and probably from aggressive throttle from low speed. Dont matter, they ruin motors. At high speed they can destroy an engine beyond repair. I wish more people would just admit it happens and stop trying to push the envelope in an attempt to get unknowing people to follow them. I am sorry to vent but this "my belt lasted longer than yours" issue really isnt helping anyone.
     
  25. ROLOcr

    ROLOcr Formula Junior

    Oct 25, 2005
    619
    Costa Rica
    Full Name:
    ROLO
    a chain is as strong as its weakest link

    so i rather not take chances on belts from the "stronger links"(the guys with the older belts)

    better safe than sorry
     

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