replace engine 348 $$$ | FerrariChat

replace engine 348 $$$

Discussion in '348/355' started by 360DUSTIN, Nov 6, 2009.

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  1. 360DUSTIN

    360DUSTIN Karting

    Oct 21, 2009
    151
    Mckinney Tx
    Full Name:
    Dustin Helms
    I am curious to know what happens if a cam belt breaks. The guy at my local ferrari dealership says that you would have to go in and put new heads and pistons etc. in the car to get it running again. Is it possible to find a used motor somewhere if that was to happen and if so, how much would it cost roughly? i plan on getting my car serviced soon but the idea that all it takes is a snap of a belt and im out 20k worries the hell out of me. why is it that a honda can run 100k before changing a timing belt but a ferrari has to have it done every 3 years?
     
  2. Kravchak

    Kravchak Formula Junior

    Oct 17, 2005
    850
    Northeast
    Full Name:
    Ken
    Because Honda does not make a car in the guise of a race car for the street. When you race you service the motor after every weekend and Ferrari had the same Idea when they built them. Maintenance isn't even considered a hassle on a race team.

    Oh and they built cars like hondas so non mechanical people could enjoy driving too........
     
  3. wingfeather

    wingfeather F1 Rookie

    Feb 1, 2007
    3,653
    rock bottom
    A non-interference, weak engine that gets regular exercise. Brilliant comparison.
     
  4. Saint Bastage

    Saint Bastage F1 Rookie

    Jun 1, 2007
    2,548
    Connecticut
    Full Name:
    Lane
    #4 Saint Bastage, Nov 6, 2009
    Last edited: Nov 6, 2009
    got 170000 out of my Audi.

    Breaking a belt is not the likely scenario, its skipping a tooth, seizing a tennsioner or otherwise affecting the valve timing. Result is the same. Can be as little as a few bent valves and as big as total over haul/replacement. Why every 3 years? I'm not touching that one other than to say Ferrari's tend to remain far more stagnant than Honda's creating issue's. The owners manual for my 348 says replace at 52.000 miles. You want to know more, search "cambelt" in this forum. Some HUGE differances of opinion.
     
  5. ace_pilot

    ace_pilot Formula Junior

    Sep 6, 2007
    921
    Long Island, NY
    Full Name:
    George
    Most Honda's are interference engine, BTW. They just cost less as there are millions of them!

    Ace
     
  6. VIZSLA

    VIZSLA Four Time F1 World Champ
    Owner

    Jan 11, 2008
    41,692
    Sarasota
    Full Name:
    David
    By coincidence I just replaced the timing belt(s) on my wife's Accord. With less than 100k of gentle driving it was loose and had already jumped a least one cog.
    Put off replacement at your own peril.
     
  7. Jedi

    Jedi Moderator
    Moderator Lifetime Rossa Owner

    Mar 18, 2008
    32,272
    Seattle Area
    Full Name:
    Dave
    Back to the original question, last 348 motor I saw on eBay sold for
    $25k or thereabouts. And would STILL have needed a belt service, tensioners,
    etc.

    Just change the belts and sleep better knowing you did.

    Or buy that Honda :D
     
  8. Miltonian

    Miltonian F1 Veteran

    Dec 11, 2002
    5,966
    Milton, Wash.
    Full Name:
    Jeff B.
    "What happens if a cam belt breaks?" (on a 348):

    The 348 has one cam belt driving all four of the camshafts. If the belt breaks, the crankshaft continues to turn for a short time, and the pistons continue to go up and down, but all four cams stop turning immediately, so all 32 valves stop in whatever position they were in, open or closed. On an "interference engine", the valves (usually the exhaust valves in particular) will open far enough to come into contact with the crown of the piston if they are not timed correctly. When the piston crown strikes the head of the valve, it usually bends the valve stem, destroying the valve. In a "worst case scenario", the valve heads can actually snap off the stems, leaving the valve head to bang around in the combustion chamber, damaging or ruining the cylinder head, the piston, and perhaps the cylinder. If the belt breaks, at the very least you would have to replace the belt and any valves that had touched the pistons. At worst, you could end up with an engine that would cost well over $20K to fix.

    If the belt "jumps timing", it can actually do more damage than having the belt break, because the cams continue to turn rather than stopping in place, and you could end up with ALL of the valves damaged, rather than just the ones that stopped in the wrong position. Cam belt problems can be caused by age, sloppy installation, faulty tensioners, seized water pumps, fluid contamination, broken fences on the gears, or debris from broken belt covers (plastic covers used on later 348's tend to break apart).
     
  9. resnow

    resnow Formula Junior

    May 21, 2001
    653
    North Carolina
    Full Name:
    Bob Snow
    My belt broke because of loose metal fence from cam drive but it was idling at the time. Bent just 4 exhaust valves but had to pull heads, of course, and had all valve guides machined and put on all new valve stem seals. Since I did almost all of the work myself, my cost would not be representative. Total valve and machine work was <$1k, not including parts.
     
  10. AceMaster

    AceMaster Three Time F1 World Champ

    Feb 6, 2009
    34,777
    Ontario, Canada
    Full Name:
    Mike
    Because Honda's don't redline at 7500RPM's and run as high as 9000RPM's.

    It's a Ferrari, not a Honda.
     
  11. malex

    malex Formula 3
    Silver Subscribed

    Dec 5, 2007
    1,246
    FL
    Really? You mean like like the Honda S2000 2.0L, 237bhp engine (i.e. the earlier F20C engine), which redlined at 8800 rpm and had a fuel cutoff at 9000 rpm? O.k., I'll give you that it's not your run of the mill Honda engine.
     
  12. plugzit

    plugzit F1 Veteran
    Silver Subscribed

    Dec 1, 2004
    7,776
    Redondo Beach, CA
    Full Name:
    Bruce Bogart
    If you break a cambelt, you replace probably 8, maybe more exhaust valve and a few intake valves, and do your regular full service. Alternatively you can buy one of a zillion 348 motors that are available. Completers will set you back 8k or so. COMPLETE new crate motor on ebay just went unsold at $9k. Since 348 motors are so durable, there are quite a few laying around out of crashes. No worries. Don't let anybody scare you!
     
  13. MaterMech

    MaterMech Formula Junior

    Feb 26, 2007
    476
    Los Gatos CA
    Full Name:
    Mark Johnson
    When I bought mine as a project it had 28/32 bent valves. No piston or liner damage thankfully. Parts were about $6K and labor was free ;)
     
  14. HolyRoller

    HolyRoller Formula Junior

    Dec 19, 2008
    518
    SE NC
    Full Name:
    Captain Slow
    The F22C in the AP2 S2000 redlines at 8000, and bounces the rev limiter at 122mph in 5th. oops, I didn't say that. It would prolly be all right at 9000 like the F20C but too many people were missing shifts and mechanically overrevving and cracking valve retainers and dropping valves, so they nannified the limiter a bit.

    But as much as I love my S2K, I garontee you I would rather have a 348.
     
  15. Night life

    Night life F1 Veteran
    Silver Subscribed

    Dec 1, 2007
    7,288
    The city that rhymes with fun in Canada
    Full Name:
    Roberto
    #15 Night life, Nov 7, 2009
    Last edited: Nov 7, 2009
    Hmmm funny your asking this question, not sure if you have read about my plight right now, if not read on

    WARNING! it is very depressing.

    http://ferrarichat.com/forum/showthread.php?t=262678

    Anyhoo I have been doing some searching and have come across 5 engines, two are brand new the other three have various miles on them. Price range anywhere from 7k to 18k depending on engine swap or how much or little you need. To rebuild an engine you will more than likely be around the 25k to 35k range but you will know what you have plus retain original engine with car.

    I have found more and more with the economy the way it is and the sudden high decline on price for our beloved cars that people are just trying to make their money back from their earlier purchases including engines.
     
  16. Ricambi America

    Ricambi America F1 World Champ
    Sponsor Owner

    Mine broke the same way, and I had close to 20 bent valves. Machine work + skill + money and she's all back together now.
     
  17. enginefxr

    enginefxr Formula 3

    Aug 20, 2007
    1,753
    S&amp;R Exotics
    Full Name:
    Gary Sharpe
    With all the engine rebuild prices on this thread, it sounds like I haven't been charging enough....
     
  18. plugzit

    plugzit F1 Veteran
    Silver Subscribed

    Dec 1, 2004
    7,776
    Redondo Beach, CA
    Full Name:
    Bruce Bogart
    Yeah, I'd quit my day job to do some of that work for those prices.....
    Heck, an engine job for $25-35k? You can buy another car for that and keep the broken one for spares.
     
  19. vvassallo

    vvassallo F1 Veteran

    Aug 4, 2006
    8,326
    Palos Verdes
    Full Name:
    Vince V
    I cddan tell you that there a lot of available 348 engines for a lot less than 25K. In fact, there is a surplus of them since they seldom break.
     
  20. 50hdmc

    50hdmc Formula 3

    Oct 10, 2006
    1,211
    Michigan
    Full Name:
    mark s
    it sure is comforting to hear from other than the "dark side" about this issue. I always worry about this same problem, even with a major less than one year ago. I've been "conditioned" I suspect, from what I have always read on this forum. GREAT to hear from some others......
     
  21. rimoore

    rimoore Formula 3

    Nov 18, 2004
    1,353
    Island in Maine
    Full Name:
    Richard Moore
    6-7 K for a good used one
     
  22. ferrari 512 tr

    ferrari 512 tr F1 Rookie

    Nov 16, 2008
    4,180
    Australia
    Full Name:
    Paolo
    makes u sick in the tummy hearing about this
     

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