need urgent help with electrical, + power on the regulators ground base

Discussion in 'Sparky's corner' started by 72gsBuick, Aug 1, 2009.

  1. 72gsBuick

    72gsBuick Never Say Never..

    hey Tyler, checked my compression again on number one piston, and still 150 psi..guess somehow the cam did increase the compression psi's dont know how but it did.:TU:
     
  2. RAbarrett

    RAbarrett Well-Known Member

    I am pleased that the engine is ok. Something to consider here is that, under ALL circumstances, the camshaft will affect the compression.
    The thing to remember is that there are two types of compression, static, and dynamic. The static compression is mechanical, and is determined by the ratio between the size of the combustion chamber when the piston is at bottom dead center, and at top dead center. This is a mechanical compression or static.
    Dynamic compression is directly related to the system, which includes the carburetor, cam, valve size, intake and exhaust manifolds, etc. Dynamic compression, in a word, is based on the engine's ability to fill a cylinder with mixture, and its ability to dump the exhaust. This ability, directly controlled by the cam events, directly affects the dynamic compression. The lower compression encountered before the cam change was the dynamic compression, which you measured with the gauge. The measurement increased because the valve timing events raised the effective compression at cranking. Is the charging system working ok? This alternator, as previously mentioned REQUIRES an external regulator. Let me know... Ray
     
  3. 72gsBuick

    72gsBuick Never Say Never..

    ok cool, than i guess what i measured with the plugs off and each cylinder giving me a 150+ reading would be static compression, even with the plugs on and reading one cyl at a time i still got 150+psi's.. i knew right away when i measured the lift of the cams with a MIC.. another cuase would be, maybe, just maybe i had the valves adjusted wrong and were letting compression out through the exhaust which i highly doubt, i would of had many problems with the engine if that were the case.. now about the alt. i guess everything is normal... now that i installed everything back and timed it, runs great...so far.. except for a stubborn oil leak down at the oil pump base.. i have changed about 8 gaskets or so, both thick ones and thin ones.. i said you know what, screw it.. already wasted enough money with the guessing games.. got a good used timing cover from my buddy Doug.. and hope to install it tomorrow.. well thanks and ill keep you updated on how everything goes.. hope to head down to reno,nv will take allot of pics.
     
  4. flynbuick

    flynbuick Guest

    You need to take your car to an older mechanic. Taking off the timing cover requires some tools like an impact gun, a torque wrench etc.
     
  5. 72gsBuick

    72gsBuick Never Say Never..

    well, my dad is a toyota tech and many more import stuff, so we have tons of tools just no experience whatsoever with buicks:shock: except the stuff im learning right now..well got the timing cover done, no leaks as of today, ended up going with stock gears and stock pump.. basically engine is back to stock not including headers and intake swap and cam aswell. even took off my roller rockers for now. well electronic stuff is at its best no more mess, no more electric problems.. still want to know how to wire up that mallory unilite distributor using my stock wiring, although i already know how to hook it up using the balast resistor i though it was possible to hook it up using your original wiring, according to the manual..
     

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