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Fino's 58 Wagon

Discussion in 'Builds and Fabricators Forum' started by FinoCJ, Aug 10, 2019.

Page 26 of 56
  1. Muzikp

    Muzikp Active Member

    (y) Let's see the numbers from these tests. If they are good maybe it is just a head swap :shrug:
     
    Muzikp, Jun 30, 2020
    #501
  2. Norcal69

    Norcal69 Out of the box thinker 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Maybe I missed something.... but if the numbers are good I would just get some quality cast Aluminium valve covers.
     
    Norcal69, Jun 30, 2020
    #502
    Fireball likes this.
  3. FinoCJ

    FinoCJ 1970 CJ5 Staff Member

    they won't fit without more firewall modifications....all the newer aftermarket stuff is taller...
     
    FinoCJ, Jul 1, 2020
    #503
  4. Glenn

    Glenn Kinda grumpy old man Staff Member

    Maybe I'm the one that is missing something? With noticeable blowby I don't understand how the compression numbers could be good. :shrug:
     
    Glenn, Jul 1, 2020
    #504
    ITLKSEZ likes this.
  5. Norcal69

    Norcal69 Out of the box thinker 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Norcal69, Jul 1, 2020
    #505
    Glenn likes this.
  6. Norcal69

    Norcal69 Out of the box thinker 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Norcal69, Jul 1, 2020
    #506
    Glenn likes this.
  7. FinoCJ

    FinoCJ 1970 CJ5 Staff Member

    Have to use an adapter with two gaskets to get those to work - most of the aftermarket use the 'in-line' mount hole spacing....mine is the offset spacing, but it needs an oil fill (a breather hole works). The early ones like Norcal posted are probably offset holes, but would have to have an oil fill/breather hole added (and that can be an issue with the fins), and the later ones need an adapter and are too tall without cutting more of the firewall (which I am not against, but I don't know how to do it with the engine in place).
     
    FinoCJ, Jul 1, 2020
    #507
  8. ITLKSEZ

    ITLKSEZ Hope for the best, prepare for the worst

    I've wondered that before myself. My car has incredible compression numbers, but with your hand over the oil fill hole, it feels like a hair dryer. :shrug: I guess it doesn't take much compression loss to feel as considerable blowby.
     
    ITLKSEZ, Jul 1, 2020
    #508
    Glenn likes this.
  9. Glenn

    Glenn Kinda grumpy old man Staff Member

    I've never compared compression numbers and blowby, went by oil usage and smoke out of the exhaust as indicators of needing rebuild. I guess blowby is more acceptable than I originally understood.
     
    Glenn, Jul 1, 2020
    #509
  10. Fireball

    Fireball Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Fireball, Jul 1, 2020
    #510
  11. Norcal69

    Norcal69 Out of the box thinker 2024 Sponsor 2023 Sponsor 2022 Sponsor


    I think you've been around here long enough to know that you cant win with this crowd...... we have an answer for everything.....:p
     
    Norcal69, Jul 1, 2020
    #511
    Fireball likes this.
  12. Fireball

    Fireball Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    But seriously, $100 for valve covers to fix leak on an otherwise good running engine seems better than the scope creep you're looking at.
     
    Fireball, Jul 1, 2020
    #512
  13. FinoCJ

    FinoCJ 1970 CJ5 Staff Member

    I do like the old school finned covers with the added fill/breather hole. But I am also leaking lots of oil out of the ends of the intake so its more than just better valve covers.

    I don't get any blue smoke out the exhaust, so it doesn't seem like its burning much oil. But with the draft tube, it could just be leaving the oil on the road as opposed to feeding it back into the throttle body/intake and burning it off.

    Trying to learn how I might improve or update from the draft tube to a pvc valve system....this would be if an engine rebuild was in order, not as an immediate fix.
     
    FinoCJ, Jul 1, 2020
    #513
  14. Fireball

    Fireball Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Don't forget the finned "Corvette" valve covers add at least 25hp.

    I would think valve covers and redoing the intake manifold with "The Right Stuff" for the end seals would solve most of your problems. I went round and round with similar intake manifold issue son my Mustang. The cork gaskets would always squeeze out. RTV didn't work great,. Cleaning with degreaser, a big bead of The Right Stuff cured until firm on the block, and then a thin smear on the intake before it goes on. I haven't had any problems since.
     
    Fireball, Jul 2, 2020
    #514
  15. Norcal69

    Norcal69 Out of the box thinker 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Don’t forget they add 2” to the length of your cubic inches..... :rofl:
     
    Norcal69, Jul 2, 2020
    #515
  16. colojeepguy

    colojeepguy Colorado Springs

    All you need is a PCV valve in one valve cover, connected to manifold vacuum, and a breather cap on the other.
     
    colojeepguy, Jul 2, 2020
    #516
  17. FinoCJ

    FinoCJ 1970 CJ5 Staff Member

    I did...it worked fine for a few little drives around town, but as soon as I took it on the highway for some longer, higher rpm cruising, it all failed.
     
    FinoCJ, Jul 2, 2020
    #517
  18. Fireball

    Fireball Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Hmmm. That is really frustrating.

    I can't think of why that would be unless the bead wasn't thick enough to compress well or the surfaces still had some residual oil.
     
    Fireball, Jul 2, 2020
    #518
  19. 45es

    45es Active Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    When changing from draft tube to closed PCV system, the draft tube also needs to be sealed.
     
    45es, Jul 2, 2020
    #519
  20. colojeepguy

    colojeepguy Colorado Springs

    I guess I assumed that was a given, but we all know what "assume" spells! ;)
     
    colojeepguy, Jul 2, 2020
    #520
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