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Ferrari 308 GTS QV Project Rebuild and Euro Conversion

Discussion in '308/328' started by spiderscott, Nov 23, 2018.

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  1. spiderscott

    spiderscott Formula 3

    Feb 24, 2004
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    Scott
    #1 spiderscott, Nov 23, 2018
    Following the fun I had building the 'Ratarossa' Testarossa Spider over on the TR Forum for the last few years, along with the enjoyment of the Magazines and SmokingTire Videos we shot.
    https://www.ferrarichat.com/forum/threads/the-ratarossa-the-testarossa-spider-rebuild-project.499875/

    I am now about to start my New next project.
    Its a US 308 GTS QV 1983 car and a non runner. The plan is to get it back on the road, fully rebuild the car along with a total respray and at the same time do a US to Euro Conversion. I will VLOG the full build start to finish on my YouTube channel.

    Heres the first video of the series and start of the 308 Project.

    Enjoy.

     
    Crowndog, kidryno and Thomas Magnum like this.
  2. spiderscott

    spiderscott Formula 3

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    #2 spiderscott, Nov 30, 2018
    Episode 2 just uploaded

     
  3. spiderscott

    spiderscott Formula 3

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    #3 spiderscott, Dec 4, 2018
    Episode 3, with todays progress on the 308

     
  4. spiderscott

    spiderscott Formula 3

    Feb 24, 2004
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    #4 spiderscott, Dec 14, 2018
     
  5. theunissenguido

    theunissenguido Formula 3
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    Guido
    #5 theunissenguido, Dec 15, 2018
    Scott, can you sit in the car on driverside, when starting, push on the gas pedal slowly....its willing to start but needs more GAS/AIR.

    Guido
     
    Hannibal308 likes this.
  6. spiderscott

    spiderscott Formula 3

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    #6 spiderscott, Dec 17, 2018
    Episode 5 of the 308 Project just uploaded here, some interesting discoveries today.

     
  7. theunissenguido

    theunissenguido Formula 3
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    #7 theunissenguido, Dec 18, 2018
    Yes a fuel delivery problem....a sticky plunjer in the fuel distributor ?

    Guido
     
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  8. spiderscott

    spiderscott Formula 3

    Feb 24, 2004
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    #8 spiderscott, Dec 18, 2018
    Im checking all these suggestions guys here and on YouTube, thanks for the help.
     
  9. spiderscott

    spiderscott Formula 3

    Feb 24, 2004
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    #9 spiderscott, Dec 18, 2018
    Episode 6 just uploaded

     
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  10. spiderscott

    spiderscott Formula 3

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    #10 spiderscott, Dec 19, 2018
    Little bit more progress today from the 308 Project car

     
    Crowndog likes this.
  11. theunissenguido

    theunissenguido Formula 3
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    #11 theunissenguido, Dec 19, 2018
    Scott, did you toke off the little 5 screws inside the caps ? Those are often correded and dont make contact to the plug wires.
    You cannot take off the big black tube to the plenum. It is needed for the Air-flow sensor plate to move down and put more fuel into the fuel distributor.
    Still think you need to see the plunger moving free...just take of the 3 screws on top of the fuel distributor and turn a bit to remove the upper part.

    Guido
     
  12. theunissenguido

    theunissenguido Formula 3
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    #12 theunissenguido, Dec 20, 2018
    Most important with K-jetronic is not to have air leaks between Air-flow sensor plate and intake valves. So everything on and under plenum , auxiliairy-air device, warm-up regulator, cold start valve, have to be checked on air leaks.
    At the picture you find the flashes where to look for possible air leaks.
    Its the vacuum from a starting/running engine that makes your air-flow sensor plate moves and regulates the fuel quantity.
    Guido

    Image Unavailable, Please Login
     
  13. spiderscott

    spiderscott Formula 3

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    #13 spiderscott, Dec 20, 2018
    Great stuff cheers for this, I will start checking all of that next visit. Really handy diagram
     
  14. spiderscott

    spiderscott Formula 3

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    #14 spiderscott, Dec 20, 2018
    Episode 8 just uploaded.

     
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  15. theunissenguido

    theunissenguido Formula 3
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    #15 theunissenguido, Dec 20, 2018
    With the head of fuel distributor of, did you check if the plunger moved free ?
    The black rubber tube have to sit tight at the plenum...no air may enter anywhere exept from the air flow sensor plate, the auxiliare valve. No air leaks allowed on cold start valve or other tubes at the plenum. Youre engine will not run smoothly with air leaks !
    Can you try to start without the cold start valve connected...just disconnect the Bosch connector of it. And see what happens.
    Then see how much fuel is deliverd from the fuel pump....disconnect RETURN line at the fuel distributor (at the lower front side) and put it in a plastic can...it has to be 1.000 cm3 in 30 seconds. If not I believe there is a fuel filter in the gastank also....but for 308 I'm not shure.
    Next thing would be removing injectors to see how they spray and how much.....
    Guido.
     
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  16. JuLiTrO

    JuLiTrO Karting

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    #16 JuLiTrO, Dec 22, 2018
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  17. spiderscott

    spiderscott Formula 3

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    #17 spiderscott, Dec 22, 2018
     
  18. John M

    John M Formula Junior
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    #18 John M, Dec 22, 2018
    Cams out of time on the front bank would be my guess. Also for me a compression test would be all plugs out, disable fuel, wide open throttle, crank 5-10 secs for testing each cyl.
     
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  19. steved033

    steved033 Formula 3
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    #19 steved033, Dec 23, 2018
    My thoughts too. (posted that on your youtube page) When all the compression numbers are evenly that low, it'll point to a cam opening at the wrong time.

    sjd
     
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  20. spiderscott

    spiderscott Formula 3

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    #20 spiderscott, Dec 24, 2018
    Im hoping the same. Yes I agree that's how it should be done, I had a really limited amount of time and waste sure if i would get all 8 done on the day and didn't want to leave the car half apart. Going to retest for sure before the next move.
     
  21. steved033

    steved033 Formula 3
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    #21 steved033, Dec 24, 2018
    not a ferrari, but the same principle. go to about 1:03 or so... start there.

    I wouldn't re-test it at all. manually turn it over and pull the timing covers off.

    sjd
     
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  22. spiderscott

    spiderscott Formula 3

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    #22 spiderscott, Dec 29, 2018
    Cheers Steve, nice handy video.
     
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  23. spiderscott

    spiderscott Formula 3

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    #23 spiderscott, Dec 29, 2018
    Started pulling everything apart today to inspect the engine

     
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  24. theunissenguido

    theunissenguido Formula 3
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    #24 theunissenguido, Dec 29, 2018
    A big air leak you did find there ! Did you check the compression tester again at the rear bank ? maybe an other compr. tester shot...:confused:

    Guido
     
  25. spiderscott

    spiderscott Formula 3

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    #25 spiderscott, Dec 29, 2018
    Yes I was quite happy to find the split hose, it was very well hidden as top side looked totally fine.

    When i ran the compression test on episode 9 with the replacement tester I switched and re tested some of the front banks and they read the same as before so I think the readings are correct. That said now that I have the engine lid off there's much more access to the rear bank and I will be rerunning some tests.
     
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