what do i have here??

Discussion in '1st & 2nd Generation 1983-1989' started by squirrelman, Dec 6, 2017.

  1. squirrelman

    squirrelman Member

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    {#1}


    recently bought a mystery VFR750 engine + caRbs from a known HawkGT forum member from Boston area to replace the gen3 engine some dolt tried unsuccessfully to get working in an '87 frame after that guy's original 700 mill done blowed up !


    10-8-17 024.JPG

    first concerns were sand-blasted covers and a hand-cut cardboard clutch cover gasket along with some suspicious sounds when turning the crank.

    compression test showed #1=120psi/#2=45/#3=90/#4=100, so i immediately wondered why i hadn't insisted that the seller do a compression test b4 he shipped it. my fault for trusting the seller.

    10-8-17 033.JPG

    tried with oil, not much change, so i pulled the head and found 2 very leaky intake valve on #2, maybe bent from bad assembly job after a rebuild ?



    the pistons i saw were surprisingly non-stock, so knew someone had built the engine, probably as a cheater race engine: high-compression, domed pistons with machined valve clearances. different material too. looks like CNC work, could be Cosworth.

    12-1-17 188.JPG


    looked more and found the heads had been ported and polished. special high-lift, longer duration cams and matching valve springs. what the hell ?? thought i was buying a stock, running motor, but i'm not too disappointed !! didn't need another engine job, got one apart already .

    HRC cam at right, stock left.

    dec6 2017 012.JPG
     

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    Last edited: Dec 10, 2017
  2. 34468 Randy

    34468 Randy Active Member

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    Looks like a great project on the go. But Sq. It is not a fault to be trusting of people in general. If you knew this guy was a shit, then yes, your fault. Things sometimes just don't end up ideal.
     
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