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Not enough 3500 owners, replacing valve cover

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  • #1

    Not enough 3500 owners, replacing valve cover

    is there an easy way to replace the valve cover without having to pull the UIM and LIM? i cant get the gasket to stay in place while i try to put the valve cover back on. i was thinking adding some RTV and letting it cure to hold the gasket in place when i replace the valve cover. yay or nay?

    crap, that topic did not come out write. thats what i get for writting this when im half asleep
    Last edited by americasfuture2k; 02-12-2010, 06:52 PM.
    ENGINE HAS INTERNAL DAMAGE. THIS MOTOR WILL BE TAKEN OUT OF THE FIERO AND REPAIRED IN TIME. UNTIL THEN, A L67 WILL RESIDE IN ITS PLACE

    87 fiero gt 5spd 3500, 1280 cam and PR, ls6 valve springs, port and polished heads, ported lim, ported uim, 4.3 70mm tb, ported trueleo headers and y pipe, 2.5 inch ex, flowtech muff, 7730 ecm, moates.net APU1, self tuning *learning* (GOT FROM MY BROTHER, divorce reasons.)
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  • #2
    Valve cover is the same as a 3100 and 3400 and VVT 3500/3900 too.

    If you are re-using the gasket, it might have swelled. I've reused the original one from GM with no trouble many times before until I got new ones in a kit then I figured why not.

    But yeah they swell and are too long, but you just push them in and they will go... Don't need to remove UIM or LIM... In fact you put the valve covers on after the LIM...

    Push the gasket into the valve cover, put some RTV in the corners where the head and LIM meet where the corner notch of the valve cover goes in there, and bolt it down and let it cure.
    sigpic New 2010 project (click image)
    1994 3100 BERETTA. 200,000+ miles
     16.0 1/4 mile when stock. Now ???
    Original L82 Longblock     with LA1, LX9, LX5 parts
    Manifold-back 2.5" SS Mandrel Exhaust. Hardware is SS too.

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    • #3
      just get some new ones, they are cheap.


      the GM ones swell so bad that it gets nearly impossible to get them back in.
      Past Builds;
      1991 Z24, 3500/5 Spd. 275WHP/259WTQ 13.07@108 MPH
      1989 Camaro RS, ITB-3500/700R4. 263WHP/263WTQ 13.52@99.2 MPH
      Current Project;
      1972 Nova 12.73@105.7 MPH

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      • #4
        PUSH new gasket into place on Cover, do not press and run your finger along to seat it.

        It will stretch and end up being to long and popping out lol
        As of April 2
        3rd Gen Cavy has 3500 Installed!
        ----------------------------
        Engine: 2006 SV6 3500 LX9
        Trans: 2002 Getrag F23 5speed
        Pcm: 2001 Impala La1 3400 with complete Engine Harness.
        Injectors: #36 GTPs
        TB: 65mm TCE
        Maf: 1999 3400 Montana.
        Adjustable TCE Fuel pressure Regulator
        Walbro W1 255 pump from Racetronix.
        Beverages: Ice Cold CANADIAN.

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        • #5
          im an idiot. i thought these were a part of the LIM since it seemed attached to the LIM gasket. it was just RTV'd into place. got new gaskets for 13.58 including military discount. only need one. hells yea!
          Last edited by americasfuture2k; 02-13-2010, 05:05 PM.
          ENGINE HAS INTERNAL DAMAGE. THIS MOTOR WILL BE TAKEN OUT OF THE FIERO AND REPAIRED IN TIME. UNTIL THEN, A L67 WILL RESIDE IN ITS PLACE

          87 fiero gt 5spd 3500, 1280 cam and PR, ls6 valve springs, port and polished heads, ported lim, ported uim, 4.3 70mm tb, ported trueleo headers and y pipe, 2.5 inch ex, flowtech muff, 7730 ecm, moates.net APU1, self tuning *learning* (GOT FROM MY BROTHER, divorce reasons.)

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          • #6
            They are pre-molded silicone . . . if there is any oil in the gasket groove at all, they won't stay either. It's a tight design, but sometimes the simplest s**t can just drive you right up the wall without a Jeep . . . lol

            If you ain't rock and roll, you must be driving a Honda

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