1. 67Monaco

    67Monaco Old Man with a Hat

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    I did the poor mans in an emergency stethoscope, steel rod held up my ear and placed around the valve cover, intake, and block where I could get to.
     
  2. GJS

    GJS Senior Member

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    When I toasted my wrist pin in my 440 it was a way different sound than a bent pushrod or a dead lifter. Timing of the noise too would tell you something: if it were a piston it'd be twice the time of one lifter/pushrod/valve... (if I'm not gettn that backwards .. i'm pretty sure im not but it's early.)
     
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  3. 67Monaco

    67Monaco Old Man with a Hat

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    Yeah that's why I'm pushed to something in the valvetrain since it seems to be in time with the exhaust note.


    Lots of things it could be, won't anything until I get back, which sucks.
     
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  4. cantflip

    cantflip Old Jagoff with a Hat FCBO Gold Member

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    Agree.png
     
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  5. 67Monaco

    67Monaco Old Man with a Hat

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    Hey worse comes to worse I throw a 250 shot of NO2 at it and see what breaks.
     
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  6. 70bigblockdodge

    70bigblockdodge Old Man with a Hat FCBO Gold Member

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    Now your making sense. Find the weak points and fix them.
     
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  7. commando1

    commando1 Mr. Normal FCBO Gold Member

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    Rebuild the engine.
     
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  8. 67Monaco

    67Monaco Old Man with a Hat

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    For a noisy rocker.. Pshaw...
     
  9. commando1

    commando1 Mr. Normal FCBO Gold Member

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    Hey. I had tiny clack clack clack going on in the white NYB and I pulled the engine.... :poke:
     
  10. 67Monaco

    67Monaco Old Man with a Hat

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    And it was?
     
  11. commando1

    commando1 Mr. Normal FCBO Gold Member

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    Never found out. I rebuilt the engine.
    No more clack clack clack, though. :p
     
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  12. Ripinator

    Ripinator Senior Member

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    And new cars come with gas in 'em. . .
     
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  13. 67Monaco

    67Monaco Old Man with a Hat

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    I have a '03 4.7L with non stop clack clack clack and 194K miles. it ain't comin' apart until it stops clack clack clackin'.

    440 might be slightly different. But so long as she sounds mostly happy not gun do it.
     
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  14. 67Monaco

    67Monaco Old Man with a Hat

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    Let's see whatcha think.

    60psi cold idle at 6-700rpm.
    Between 18-20 psi hot at idle 650-700rpm

    Hot, bump that to about 2000rpm and I see 50psi.
     
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  15. 67Monaco

    67Monaco Old Man with a Hat

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    Oh.... The clack pretty much went away. I mean I still have valvetrain noise but not like it was. Maybe a piece of dirt or maybe a pushrod reseated? I dunno.
     
  16. commando1

    commando1 Mr. Normal FCBO Gold Member

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    Dump in two bottles of STP and the noise will go away altogether.
    If that doesn't do it, try a third.
     
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  17. 67Monaco

    67Monaco Old Man with a Hat

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    C'mon man. It's just normal valvetrain noise now. Stp ain't gonna help. If I thought it would, I have a pound of some 70nm hBN I can use for an additive over time.
     
  18. 67Monaco

    67Monaco Old Man with a Hat

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    Pulled 22 inches at idle with about 20 degrees in it. Backed it down to about 19 inches. Hooked everything up and changed oil to 10w40 by Driven. Hopefully it's good. Says it's got extra Zddp and electrolytes. Driven it's what hot rods crave.


    Driven HR 10W-40 High Zinc Petroleum Hot Rod Oil
     
    Last edited: Nov 18, 2018
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  19. 65sporty

    65sporty Old Man with a Hat

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    Pressure is good:thumbsup:
    The flicker you had before is because of all the crap in the pickup screen starving it at idle

    :rofl:That's too funny
     
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  20. 67Monaco

    67Monaco Old Man with a Hat

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    No what I was saying was, after the timing chain went in, the light stopped flickering.

    As to the screen being plugged, I cleared all that when the pan was off. I figured that's what was causing it to flicker. But it did it even after I cleared the screen. In the end I chalked it up to a finicky pressure switch.

    I still lean that way but can't explain why it stopped post timing chain.