My Testarossa DIY thread | Page 5 | FerrariChat

My Testarossa DIY thread

Discussion in 'Boxers/TR/M' started by mikael82, May 26, 2015.

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  1. mikael82

    mikael82 Formula Junior

    Nov 18, 2007
    869
    Finland
    Full Name:
    Mikael
    Today I spend lot of time to open thermostat housing.
    It was tight so I took it out right away.
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    That black stuff is factory rust protection.
    To unbolt I had to use gas burner and all kind of mirracle oil, Even used cordles power tool to get that little movement, warning to all; thermostat housing corrodes tight.
    After hours of try I did manage to get them seperated, toughest one is to remove housing from cooling pipe.
    Heat is what did the trick.
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    It is sealed only by thermostat seal.
    Original thermostats are plastic, they can get stuck and I had feeling one side might not close correctly.
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  2. mikael82

    mikael82 Formula Junior

    Nov 18, 2007
    869
    Finland
    Full Name:
    Mikael
  3. mikael82

    mikael82 Formula Junior

    Nov 18, 2007
    869
    Finland
    Full Name:
    Mikael
    Lamborghini Diablo
    Intake
    before TDC 27 decree
    After BDC 73 decree

    Exhaust
    before BDC 70 decree
    After TDC 10 decree



    Compared to Testarossa:
    Intake
    before TDC 16 decree
    After BDC 48 decree

    Exhaust
    before BDC 54 decree
    After TDC 10 decree
     
    turbo-joe likes this.
  4. turbo-joe

    turbo-joe F1 Veteran

    Apr 6, 2008
    8,867
    southwest germany and thailand
    Full Name:
    romano schwabel
    thank you very much mikael :)

    so the valve opening times at the lamborghini are much more than the testarossa. I wonder why the lamborghini then has a really low idle rpm and running very smooth with such long opening times?
    you know perhaps the wight from the flywheel? I´m not very familiar with countach, only had 1 customer anbd he already sold this car, but I always have been surprised how smooth the countach engine in very low idle was running, a carb version
     
  5. mikael82

    mikael82 Formula Junior

    Nov 18, 2007
    869
    Finland
    Full Name:
    Mikael
    Well they did not come out, exhaust valves came out with that lever -style tool, but intake side I could not make enaugh force to brake valve spring locks out.
    So I made this very simple and effective tool. Much more solid and cheaper from those purpouse made valve compression tools.
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    It still needs little tap to brake contact.
    Tool got kind of spring tension when you tighten clamp, so little tap with hammer and valve lock opens. I got all kind of valve compression tools, but this is my favorite.
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    Valves and springs, with rest of valve mechanism.
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    TestaDDS and Jakuzzi like this.

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