tr engine removal questions diy | FerrariChat

tr engine removal questions diy

Discussion in 'Boxers/TR/M' started by tommie, Apr 26, 2014.

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  1. tommie

    tommie Rookie

    Feb 28, 2013
    42
    i sure its here some where on the site cant seam to find the info i need
    removing the engine on my 91 TR and had some questions
    do i need to discharge the a/c and remove lines or is it possible to leave conn and remove compressor from eng
    also main battery connection on the lower left frame not sure how the coupling comes apart
    best way to drain cooling system with out getting a bath i see not petcock

    thanks to all that help

    then of course that old repeated question
    16k on the engine ,doing belt service , do i reseal the water pump, no present leaks,
    and should i get into valve clearance checks
     
  2. tbakowsky

    tbakowsky F1 World Champ
    Consultant Professional Ferrari Technician

    Sep 18, 2002
    19,949
    The Cold North
    Full Name:
    Tom
    Yes you can hang the compressor. It's a bit of a bugger to remove it, but you can tie it up and out of the way.

    Drain the coolant from the engine. On the rear of the cylinder heads are 22mm plugs. Remove those and let th coolant drain out from both sides of the engine.

    Just pull the coupling. You may have to wiggle it a bit, but it will undo.
     
  3. ago car nut

    ago car nut F1 Veteran
    Silver Subscribed

    Aug 29, 2008
    5,495
    Madison Ohio
    Full Name:
    David A.
    You can leave the A/C lines connected to the compressor. Unbolt the compressor and leave it in the engine bay.

    The main electrical disconnect on the chassis disconnects easily, you will see when you get close. I believe it is bolted.

    I believe there is petcocks on radiators or somewhere on the lower coolant system, or remove lower rad hose and drain into pan.


    Checking valve clearance is easy with motor out. use new gaskets.

    The popular opinion, If coolant looks clean and the water pump is not leaking, leave it alone.

    you can change ignition wires , with 7mm suppressor wires and reuse red silicone wire covers.


    Ago
     
  4. Philwozza

    Philwozza Formula 3

    Apr 23, 2009
    2,045
    Winchester UK
    Full Name:
    Phil Worrall
  5. Melvok

    Melvok F1 World Champ
    Owner Silver Subscribed

    Jul 25, 2008
    14,263
    Amersfoort, The Netherlands, Europe.
    Full Name:
    Mel
    Hi friend Tommy,

    Can you please introduce yourself here ? Wher do you live (I live in Europe) ...

    When, where did you find te TR ? And so on ... VIN ?

    That way readers in your neighbourhood may contact you ....

    Good luck; do read the very many threads about the EO (engine-out) ... and maybe this one too ... :)
     
  6. godabitibi

    godabitibi F1 Veteran

    Jan 11, 2012
    6,329
    Papineauville, Quebec
    Full Name:
    Claude Laforest
    I'll let him introduce himself but he told me he is from New Jersey and own two Testarossa. A Black with 6000 miles and a Red. He registered both with me.
     
  7. carguy

    carguy F1 Rookie

    Oct 30, 2002
    3,424
    Alabama (was Mich.)
    Full Name:
    Jeff
    Regarding the main electrical connector on the lower frame rail, it just pulls apart - similar to the electrical plug on an electric fork truck, when you disconnect it from a charger.

    If you decide to drain the radiators, there is a petcock on the driver's side, but the right side has only a brass plug.

    I concur regarding the water pump, if it isn't leaking - leave it alone.

    Definately DO check the valve clearances, not hard to do at all. Consider drawing up a simple diagram for the valves and write down the clearance for each - this provides you with a historical record.
     
  8. turbo-joe

    turbo-joe F1 Veteran

    Apr 6, 2008
    9,526
    southwest Germany, France ( Alsace ) and Thailand
    Full Name:
    romano schwabel
    AC compressor remove or not? good question. if you have the right tools to uncharge and to charge again the system then I would uncharge and remove then the compressor, because when you take out the engine to the top it would be always there where you can not use it :) . this all would take about max. 2,5 hours. to remove the compressor and put it in again it takes without disconnecting the hoses less time when you are good and all is working fine about 30 minutes, but you also may need 2 or 3 hours. and then it is not sure that you don´t damage the thread. also it is a question if you take out the engine to the top ( then you have to remove the compressor from the engine or you need a new rear window ) or you take out the engine with the frame to the buttom. but then you have to do a complete wheel alignment again and this takes also some time.

    I also think to let a not leaking waterpump untouched

    valve clearance check and adjust ts a must ( write all the valve clearances down and what thickness the shims have - before and after. so for next time then you just now the new thickness you need then )

    also a must are the 4 seals at the cams and of course new gaskets.

    then new timing belts and new bearings

    sometimes the threads of the spark plugs are a little damaged. when the engine is outside you can repair easily.
     
  9. tommie

    tommie Rookie

    Feb 28, 2013
    42
    thanks Phil that was great help
    tom
     
  10. tommie

    tommie Rookie

    Feb 28, 2013
    42
    thanks to everyone
    tom
     
  11. tbakowsky

    tbakowsky F1 World Champ
    Consultant Professional Ferrari Technician

    Sep 18, 2002
    19,949
    The Cold North
    Full Name:
    Tom
    I wrote some time back a complete step-by-step..I'm awful at using the search function or I would post the link..
     
  12. turbo-joe

    turbo-joe F1 Veteran

    Apr 6, 2008
    9,526
    southwest Germany, France ( Alsace ) and Thailand
    Full Name:
    romano schwabel
  13. vincenzo

    vincenzo F1 Rookie

    Nov 2, 2003
    3,373
    Contrarian opinion:
    Pull the WP each time you do an engine out. Absolutely! No doubt about it - DO IT!

    It has two seals - coolant to weep hole and weep hole to drive chain. The only way to confirm the integrity of the rear seal is to pull the WP.

    Just pressure test the WP before you put it back in the car - no big deal!

    Look at this link at post #47 by LP400S:
    http://www.ferrarichat.com/forum/boxers-tr-m/424098-water-pump-seals.html

    Rgds,
    Vincenzo

    PS: Valve clearance is a no brainer - DO IT!
     
  14. MonoSpecchio

    MonoSpecchio Formula Junior

    Dec 7, 2006
    421
    SoCal in the IE
    #14 MonoSpecchio, Apr 28, 2014
    Last edited by a moderator: Sep 7, 2017
    ^^^I'll second Vincenzo's opinion. I really didn't want to do it but I'm glad I took the plunge. My oil seal looked like the one in LP400S's link and my water pump seal was dry and cracked as you can see in the below pic.

    I just rebuilt mine and am pressure testing it as we speak...so far no leaks! Don't be scared...Fchatters are VERY willing to help you through any problems you run across and their collective knowledge is astonishing.
    Image Unavailable, Please Login
     
  15. LP400S

    LP400S Formula 3

    May 18, 2002
    1,223
    West Coast
    #15 LP400S, Apr 28, 2014
    Last edited by a moderator: Sep 7, 2017
    This is from another earlier car I just recently did (original INNER seal and new one after install). Previous major was done about 6 years ago. Not sure if they did the pump then or not. it was not leaking but look how trashed the inner seal was. I come across alot looking this way.

    Believe it or not I prefer the earlier 2 piece wp seals for install. Very easy to install and less prone to cracking upon install since the part that goes into the motor only has one ceramic piece not two like the later ones. Make sure when you tap it into the block you have the right tool and you dont crack the ceramic part. Examine it very carefully after installing. Good luck.
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  16. LP400S

    LP400S Formula 3

    May 18, 2002
    1,223
    West Coast
    #16 LP400S, Apr 28, 2014
    Last edited by a moderator: Sep 7, 2017
  17. tommie

    tommie Rookie

    Feb 28, 2013
    42
    i changed the cam belts with everyone's help of course ,but i think i might be off by one tooth on on the 1-6 side
    how to check positively that the timing if 100% correct
     
  18. tommie

    tommie Rookie

    Feb 28, 2013
    42
    now that i have the engine out looking for the best thing to use to clean the exterior of the engine
    suggestions please
     
  19. vincenzo

    vincenzo F1 Rookie

    Nov 2, 2003
    3,373
    WD-40 and various, fairly soft brushes.... Lots of rags to wipe off the goo.

    Rgds,
    Vincenzo
     
  20. carguy

    carguy F1 Rookie

    Oct 30, 2002
    3,424
    Alabama (was Mich.)
    Full Name:
    Jeff
    To verify cam timing, you'll need to use a degree wheel to check the opening and closing events.
     

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