Re: Finding TDC (sorry, a bit off topic)

["Bruce Plecan" <nacelp@bright.net>]

Careful, and with direct adult supervision!.
Disable the ignition system.
Remove the plugs.
Have Talented assistant, crank motor for like .3 secs atta time, whilst you
hole finger over #1 spark plug hole and repeat till ya feel your fnger blown
outta the hole.  Then look down at crank pulley and you should be right
around TDC #1.
  360d should be #4.
  120d segments will get the remaining four cylinders.
  Firing order is 123456, or 612345, all work out the same.
  120d is pulley diam x piez, divided by 3s

Just hope ya didn't mean "The Duty Cycle", and things were reference the
lead down test, cause I was assuming that you were
Grumpy


> Hope no one minds, but I came to the sudden realization that I don't know
> how to diagnose cars.  And how can I expect to 'performance tune' if I
> can't even get a stock car back to stock? (hence the very weak gmecm
> tie-in).  O.K., I'm going to try to do a leak down test on an 1989 Chevy
> Beretta, V-6, manual trans, Front Wheel Drive.  I looked in the service
> manual I bought from a dealer, and couldn't find directions on how to find
> top dead center.  Any suggestions?  If no other ideas, I plan on taking
> the valve covers off and moving the crank until I see both intake and
> exhaust valves closed, and not moving.  I imagine if I don't get exactly
> top dead center, filling the cylinder with compressed air is going to make
> it move down, so I'll keep my fingers away from the belt, and mabe see if
> I can 'lock' the crank from moving.
> Thanks for your time,
>
> - Steven Ciciora
>
>
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