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TR engine knock

Discussion in 'Boxers/TR/M' started by tamburini44, Jun 6, 2019.

  1. bpu699

    bpu699 F1 World Champ
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    Is that a known working motor with some kind of guarantee?

    There was a post years ago where someone called a Ferrari used parts dealer. The motor alone was $30-40k...

    Listen find out whats wrong then deal with it. If you have any mechanical aptitude, perhaps you can do it yourself...

    DO a leakdown test while waiting for the dealer appointment, that will give you lots of info...
     
  2. tamburini44

    tamburini44 Karting

    Jun 6, 2019
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  3. vincenzo

    vincenzo Formula 3
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    I would not turn the engine over at this point. Nothing to gain other than more worry. Difficult to reach without a lift.
     
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  4. tamburini44

    tamburini44 Karting

    Jun 6, 2019
    82
  5. tamburini44

    tamburini44 Karting

    Jun 6, 2019
    82
    Dealer's saying about 50h to rebuild the entire engine once it's out. I expected more.
     
  6. vincenzo

    vincenzo Formula 3
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    I’d be interested to hear Brian’s opinion...

    Me.... I’d have guessed a min 100. Lots of parts chasing too. Heavy on the ‘while you are in there’ too. Chains? Gears? Bearings? Machining? Balancing? Seals? Differential?

    Not trying to be negative. Once done, you’ll have a like new engine!
     
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  7. tamburini44

    tamburini44 Karting

    Jun 6, 2019
    82
    That's closer to what I expected. I may do the differential, depending what an inspection reveals, looks it was opened up during the last service,
    but unless I have to, I'm not doing a full rebuild.

    Depends on the cause also, if it's due to negligence, that may change things.
     
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  8. bpu699

    bpu699 F1 World Champ
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    I don't see anyone rebuilding a motor in 50 hours, unless using all new parts...

    I'm still rebuilding my 930 motor 2 years later. Last night spent 2 hours just getting gasket maker off oil return tubes and other various parts.

    Then I was sent the wrong oil rings...

    Then...

    Then...

    Well, you know how this goes.


    I worry that 50 hour rebuild will be higher, and they will want to include a whole bunch of new parts...

    Rebuilding a Porsche 930 motor at a reputable shop... is $25k...

    A testarossa I would only imagine, would be twice that.
     
  9. tamburini44

    tamburini44 Karting

    Jun 6, 2019
    82
    Most major projects I've read about here seem to take a few years. Doing the work yourself, even if takes time, is rewarding. Best of luck with the rebuild.

    Gasket maker can be evil stuff. One my Alfa's oil pan.
    Image Unavailable, Please Login
     
  10. vincenzo

    vincenzo Formula 3
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    Was the middle finger for the previous mechanic?
     
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  11. tamburini44

    tamburini44 Karting

    Jun 6, 2019
    82
    Am I mistaken or are these time estimates about 30-40% above normal?

    10h to remove the engine, 8h for the cylinder head
     
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  12. MOSS

    MOSS Formula 3
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    Apr 28, 2004
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    I agree, those numbers are way high for an experienced person.
     
  13. Natkingcolebasket69

    Rossa Subscribed

    Agreed!


    Sent from my iPhone using Tapatalk
     
  14. turbo-joe

    turbo-joe F1 Veteran
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    1 or both heads?
    if all is original and rusty and hard to remove then those hours will be the minimum for 1 head. also may be it needs also new valve guides and then grinding the seats. so much more hours then. also often the exhaust manifolds break in the head - have fun then ;)
     
  15. tamburini44

    tamburini44 Karting

    Jun 6, 2019
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    1 head. Removal only, not repair.
     
  16. turbo-joe

    turbo-joe F1 Veteran
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    then those 18 hours are too much, except they also clean all what takes some time
     
  17. johnk...

    johnk... F1 Veteran
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    Jun 11, 2004
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    #93 johnk..., Aug 7, 2019
    Last edited: Aug 7, 2019
    Sorry to hear of your problem. But there is a lot of nonsense being discussed about a complete engine rebuild. I went through a similar problem with my 308 QV. Broke a belt on the 1-4 bank. The independent shop I used said one thing. "Let's get the head off and see what the damage is." As it turned out the there were 4 bent valves, two intake and 2 exhaust and some nicks on a couple of pistons. Bottom line was a valve job on the head with 4 new valves and little touch up of the pistons, reassembly and it was good to go. The idea that you need a complete rebuild of the engine, or even replacement of a couple of pistons because you bent a few valves is nonsense, typical of the Ferrari attitude that everything has to be perfect. Unless there is evidence of significant damage to a liner, piston or head, the approach taken that I outlined for my car should be more than sufficient to put the car in running order again.
     
  18. tamburini44

    tamburini44 Karting

    Jun 6, 2019
    82
    Not sure they're cleaning anything. This is just the removal so that the appraiser can do the inspection.

    Is about 6h the usual time it takes a dealer to pull the engine?
     
  19. tamburini44

    tamburini44 Karting

    Jun 6, 2019
    82
    Couldn't agree more. The dealer is pushing for the whole thing, but I'll tow the car elsewhere before I agree to that.
     
  20. Steve Magnusson

    Steve Magnusson F1 World Champ
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    On a TR that has never had its cylinder heads removed, it can be a lengthy/difficult project (because of severe corrosion around the head studs). I know the Shop here that did my last major and replaced the head gaskets (had a bad oil leak on one side and some coolant weeping on the other) had to fabricate special tooling, and put many days of effort into it. I know if I was quoting the job (and I wouldn't ;)), I would give a very large possible range of labor hours for this task, and, if I had already invested in making the tool, adding some extra to amortize that wouldn't be unreasonable. JMO.
     
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  21. tamburini44

    tamburini44 Karting

    Jun 6, 2019
    82
    The times mentioned are best case scenario. There's small print regarding unforeseen issues.

    I'll have a chat with them, but I wanted to get an idea of the typical hours required.
     
  22. turbo-joe

    turbo-joe F1 Veteran
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    I would say 8-10, if no rusty bolts or screws. then also count the cleaning of the garage floor because a lot of oil and water will drop down. question is if 1 or 2 mechanics? for the engine hood to remove it would be best to have 6 hands.
     
  23. tamburini44

    tamburini44 Karting

    Jun 6, 2019
    82
    Had a chat, they're saying those estimates are the worst case scenario.
    Their normal times for a TR major 30-35h, removing cyl head 5h.
     
  24. MOSS

    MOSS Formula 3
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    Apr 28, 2004
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    Thanks Steve, I wasn't aware of those difficulties.
     

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