TR/Boxer crown and pinion solution! | Page 13 | FerrariChat

TR/Boxer crown and pinion solution!

Discussion in 'Boxers/TR/M' started by Newman, Dec 22, 2008.

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  1. BigTex

    BigTex Seven Time F1 World Champ
    Owner Rossa Subscribed

    Dec 6, 2002
    79,143
    Houston, Texas
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    Bubba
    I'm just a helpful guy that way....spreading love, Texas barbeque, and hot blues music, worldwide!!!! LOL!
     
  2. BigTex

    BigTex Seven Time F1 World Champ
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    Dec 6, 2002
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    Bubba
    I need to send ya'll some quality metal, from the lumps Shell Labs leaves lying around......
     
  3. rjtw

    rjtw Karting

    Jan 25, 2006
    50
    I just ran across this thread while researching and thinking about potentially purchasing a TR one day. Newman, you've done an incredible job! Sorry if this has been covered, but is it possible to change out the differential housing without removing the engine/trans?

    Also, I understand from other threads that the prop shaft is an issue too. I don't want to hijack this thread, but what's the fix for the prop shaft? Was that upgraded at some point in production too? Does that call for transmission removal?

    And -- most importantly -- if I were to purchase a pre-M car (or at least pre-late-94 car without the updated housing), install a Newman housing and upgrade the prop shaft, are there any other major weak points in the drivetrain I'd have to worry about?

    Just doing my research...

    And once again hats off to you, Newman, for doing such a great service to the community.

    Rick
     
  4. Cruiser

    Cruiser Rookie

    Jan 21, 2011
    42
    Kalahari, RSA
    Full Name:
    Nico
    Hi Newman, I see this thread was started in Dec 2008. I see that the diff carrier was greatly in demand and was scoped up by all the wise men.

    Have you tested the crown wheel and pinion gear set and how did it turn out. Did the reverse engineering succeed?

    Do you manufacture in sets or on demand? And costs of a set?

    Thanks
     
  5. Melvok

    Melvok F1 World Champ
    Owner Silver Subscribed

    Jul 25, 2008
    14,101
    Amersfoort, The Netherlands, Europe.
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    Mel
    Just for your research also Rick... :

    These problems MAY occur to a TR or 512TR/M.... and then we are very happy with all these solutions !

    Of all <9-10.000 TR's, only a few percent of the cars had this....

    But you may also be the lucky guy like me (until now) who has not had any of these horible breakdows...

    So don't get nervous ! Go and start your hunt for a nice Ferrari !
     
  6. AHudson

    AHudson F1 Rookie
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    Adams Hudson
    #306 AHudson, Feb 11, 2011
    Last edited: Feb 11, 2011
    Mel's right. Something to keep in mind - -

    Whenever I come threads of imminent automotive death, I start thinking "OH NO! All these cars are ready to explode shrapnel into the sky."

    Truth is, nearly 100% of those who add info (as a means to help) have had the problem, fixed it, or heard of someone who has. This skews the numbers of incidence big time, because all the ones who DO NOT have the problem don't say anything.


    I know that's obvious and all, but reading too many 'this happened to me' threads can make you undeservedly paranoid. These cars are super fun, super undervalued, cool to look at, listen to and - yes - even fix on occasion.

    I bought the latest 512TR I could find, and drive it confidently, though sans burn outs. Do your research and go in eyes wide open. Have fun. The search is half of it.
     
  7. JTR

    JTR Formula 3
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    Apr 26, 2005
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    John
    And speaking of Newman, where the heck is Newman?

    Last I heard he was moving, but that's been some time ago.
    Curious, John
     
  8. rjtw

    rjtw Karting

    Jan 25, 2006
    50
    #308 rjtw, Feb 11, 2011
    Last edited: Feb 11, 2011
    Thanks guys! Yes, I understand the "sky is falling" phenomenon, just want to make sure I have a handle on the worst case. And, of course, on the likelihood of that worst case, and your reminder is a good one.

    I haven't driven a TR yet (of any vintage) but keep getting drawn back to these beautiful icons. They are definitely a relative bargain on purchase price. How much should I expect to spend on regular maintainance though? I'm handy around the garage and would kind of like to have a project car again, I think doing the belts would be fun for instance, but on the other hand don't want to have to constantly chase problems or throw money at it.

    I've seen Jagbuff's car under FerrariAds, a beautiful 1988.5, only 15K miles, what are your thoughts on a car like that versus the silver 1992 512TR at Sports Car Company? It's a later car and has 30K miles but the price seems pretty reasonable for a 512TR. I'm really torn on the price versus later car issue.
    http://www.sportscarcompany.com/inventory.aspx?_vstatus=3,4,5&_new=true&_used=true&_makef=Ferrari&_model=512tr

    I'm certainly enjoying the search.

    Thanks!!
    Rick

     
  9. Gleggy

    Gleggy Formula 3

    Sep 22, 2004
    1,443
    Land of Oz
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    Gleggy
    If you want to get him you will have to PM him. I haven't seen him post for a while.
    But I can say I have one of his Carriers- beautiful work. Well worth the cost and drama to install. These 512BB/BBi/ TR diffs are just a hand grenade, sooner or later they will let go, and usually it won't be and the end of your driveway, it will be miles from nowhere at night in the pouring rain and no cell phone reception!
    Cheers MG
     
  10. AHudson

    AHudson F1 Rookie
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    Jul 7, 2005
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    NEWMAN has a new baby. Moved not too long ago. Is 'doing' a lot of work after real work instead of posting about the work. Helping restore a Boxer for a customer as I understand.

    He's still ugly and Canadian, so that's a couple points against him right there.
     
  11. kerrywittig

    kerrywittig Formula 3
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    #311 kerrywittig, Feb 11, 2011
    Last edited by a moderator: Sep 7, 2017
    Is there anywhere a point to point, a start to finish...how to for this R&R............. I've got the carrier, I've got all the seals and gaskets and bearings and the engine sitting in a stand. Just wondering if anyone has done a remove fastner A and twist item B type of write-up!

    Lazy Me
    Image Unavailable, Please Login
     
  12. Rifledriver

    Rifledriver Three Time F1 World Champ

    Apr 29, 2004
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    Brian Crall
    I have done a couple.

    You have my #.
     
  13. kerrywittig

    kerrywittig Formula 3
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    Thanks Bri,

    Just wanna make sure there are no "tricky" parts that I might come up against. I've done dozens of diffs (9" er's and Danas) but this is a different animal for me, I think. OK, if you don't mind the interuptions to your day.....expect to hear my soothing voice in the next couple weeks on occasion. Thanks again!

    Stut t t ering Me
     
  14. kerrywittig

    kerrywittig Formula 3
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    Nov 10, 2005
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    I love this post!.........No I really do!

    Motivating Me
     
  15. Turk512

    Turk512 Rookie

    Jan 19, 2008
    35
    San Diego, CA
    Full Name:
    Kev Hashas
    Hey Kerry, did you ever find a detailed description of the the initial breakdown and re-installation procedure?? I'm about to install the Newman carrier and I have the same question.
     
  16. kerrywittig

    kerrywittig Formula 3
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    Nov 10, 2005
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    Turk,
    I was gonna do a step by step with pix and all that......but.........I found that it is SO self-explanatory and obvious as to how to do this that it would be a waste of time and effort................I guess what is most important is....If you have the skills to take this type of upgrade on, then one will see and know the obvious........Once I removed the front cover and the side covers it is an obvious no brainer.........then of course you might have the same outcome as me when the carrier needs to be set-up again (i.e. shims, pre-load, lash)....That indeed can cause some concern as it did with me initially. But after I "calmed down" I realized it was time to get out the calipers, dial indicator, and begin measuring and fabricating my own shims to get the R&P back to the correct specs!!

    Good luck Turk..................

    Calmer Me
     
  17. Rossa a nord di

    Rossa a nord di Karting

    Apr 30, 2008
    210
    Barrie, Ontario, Can
    Full Name:
    Brent Pilon
    Hello
    Just wanted to post that I finally (after 2 years) got the new crown and pinion gear into my car.
    Had the engine out 2 years ago and missed the season so wanted to drive it last year.

    Works great!!! No noise which was the problem with the other one. Very pleased.

    Gear pattern looked good and test drove it on Sunday. Nice to hear the engine again instead of the whining of the gears.

    Now the rad fans won't turn on, but I don't think I can blame that on the gears.

    Take Care. Brent
     
  18. uzz32soarer

    uzz32soarer F1 Rookie

    Sep 9, 2006
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    Robert Hayden
    Where the hell was that sitting, on the foredeck of the Titanic?
     
  19. qwazipsycho

    qwazipsycho Formula 3

    Oct 30, 2004
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    Scott
    I LOL'd for a good minute! Thanks.
     
  20. Newman

    Newman F1 World Champ
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    Dec 26, 2001
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    That's just a regular carrier (welded).
     
  21. testamon

    testamon Formula Junior

    Aug 16, 2008
    346
    Sydney
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    Mike O
    There is a good looking pinion and ring gear there! Obviously treated with tender loving care.So if the diff housing did not give way what caused the damage?
     
  22. Newman

    Newman F1 World Champ
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    Dec 26, 2001
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    Just a shot in the dark but I figure he cut the gearbox to get the carrier. The M type carrier has 4 square holes in the closed end to allow a broach to pass through during manufacturing to cut the limited slip clutch slots. The original ferrari unit was open on both ends to allow the tool to pass through. Mine uses a different approach to cutting the slots that allows the carrier to be machined from a solid block. Once that sad carrier is cleaned up it will be obvious that the weld is there and followed up with a machine finish to clean it up.
     
  23. Newman

    Newman F1 World Champ
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    Dec 26, 2001
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    Newman
    If that one isnt suitable after the fire and water treatment it went through, I have a few original (welded) carriers kicking around for those that dont want to spend on an upgraded one.
     
  24. willrace

    willrace Three Time F1 World Champ
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    Oct 21, 2006
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    Kurt
    Well, this one has survived the proverbial "Trial By Fire".
     

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