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  1. #1
    Care in the Community WagonMan's Avatar
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    Any Essex V6 experts on here?

    We're having problems getting the one in the van running good.

    Engine was built by Oselli Engineering about 25 years ago but has only done about 500 miles since then. I have recently fitted a new facet solid state pump, leads, points etc, and yesterday fitted a brand new 38dgas carb and performance dizzy (no vacuum advance) but the van just doesn't want to run right. At tickover it's sweet as a nut but under load it's hesitant, bogging down and feels like it's missing (like a fuel miss, not a spark misfire).

    Timing is at factory settings and the carb was tuned with CO meter attached.

    Is there a way of finding out what cam is fitted without stripping the engine?
    It's been mentioned that the valve clearances could be wrong if it's got a hot cam.

    Could the carb possibly be under or overfuelling?
    Fuel pump is running between 2.5 and 3.5psi with no regulator.

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    Off the Xmas card list kapri's Avatar
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    Re: Any Essex V6 experts on here?

    Fit a degree wheel to the front , rocker covers off and watch at what degrees the inlet begins to open and then closes plus the same on exhaust ,all on number one . That'll give you a ball park figure of what the timing is and compare it to stock figures.


    Webers should work fine with that pressure , V6s don't like running too lean and timing is also critical . Has it backfired at all since starting ( usually due to too weak/timing as mentioned ) as this can blow the power valve meaning you are tuning out a rich idle which means mixture problems further up.
    How far did you have to screw the idle screws out ?

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    Re: Any Essex V6 experts on here?

    Not a dud condenser?

    Been through 6 so called new ones now,gave up and went electronic.

  5. #4
    Boogie vanner Evil McNasty's Avatar
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    Re: Any Essex V6 experts on here?

    Did hear of a story of a Ford V6 that wouldn't run right, in the end it was found to be the fiber timing gears had separated from the metal centre so throwing the timing off under load. might not be your problem but It's another angle if all else fails... Dave.
    "…si quid habet mammas vel rotas, res habebis difficiles aliquando,"
    "Carpe diem" -Quintus Horatius Flaccus (65 BC – 8 BC).

    What Would the Dude Do?

  6. #5
    Banjo snapper. Hemi Bucket's Avatar
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    Re: Any Essex V6 experts on here?

    Has it still got the metal W under the carb Ian? It was common to take it out years ago as it was thought to hinder the fuels path, this was later proved to be cobblers. It's there to help the corner cylinders get some fuel due to the rather poor inlet runner design. Has the carb got a fuel return?

    If you end up removing the timing cover to check stuff out, let me know as I've got some cover gaskets I bought years ago, was told they were no longer available.
    How'd the weekend go? Well, at the moment it looks like a dolphin that's been caught in a boats propeller.

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    Care in the Community WagonMan's Avatar
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    Re: Any Essex V6 experts on here?

    Cheers gents,

    Kev, I personally feel that the idle screws came out more than usual but we were working off the CO meter, and it seemed to be working okay at the time, then started running like crap later on.
    I've found some basic carb settings online so may be best to start again later today.

    Neil, I've got a spare condenser so may as well swap that in just to cross it off the list although electronic ignition is certainly the next job.

    Dave, I had that problem with a '61 New Yorker. Hope it's not the case with this engine.

    Al, The metal W is still in place. I've blocked off the fuel return on the new carb as my old one didn't have one. Also blocked the vacuum outlets.
    Last edited by WagonMan; 03-05-2010 at 00:42.

  8. #7
    Off the Xmas card list kapri's Avatar
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    Re: Any Essex V6 experts on here?

    With an electric pump I'd definitely use the return line. Just test it by putting a pipe onto it and into a container and run it up. If it gets fuel in it then it definitely wants a return as it will push the needle valve up and make it run rich otherwise.

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    Re: Any Essex V6 experts on here?

    Another stupid thing i had this weekend....
    If it's been stood up awhile the float has'nt stuck has it?

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    Banjo snapper. Hemi Bucket's Avatar
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    What was the outcome to this Ian, I saw a photo of the van at Drayton.
    How'd the weekend go? Well, at the moment it looks like a dolphin that's been caught in a boats propeller.

  11. #10
    Rods 'n' Sods Junkie A gasser's Avatar
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    hi there,
    run a s. african essex v6,3.4 with a downdraught 40 in the A, was running like a bag of old nails a couple of months ago, tried everything,new leads,plugs,points ect.. had the same prob,would tick over fine but under load had no guts and would play about terrible,eventually traced it to a tiny lump of poop in the float chamber,ten minutes stripping the carb down, 250 psi of air pressure thru the jets ect sorted it!! might be worth a shot.

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