This will work whether the balancer has slipped or not. In fact, it's a good way to find out if it has since halfway between the two marks will be a true TDC. This was brought up some time ago at TC and if memory serves, most cam mfgs make a screw in plug for #1 to act as a piston stop. I'd take out all the plugs, disconnect the coil wire and turn the engine over by hand.
Bottom line, if you align the balancer with the timing mark (assuming it's anywhere near close anyway) and drop the distributor in, it's either going to fire or be 180 degrees out. If it's 180 out, lift it up, turn the rotor one full turn and drop it back in. The exception being a brand new engine, but even cranking it and finding it 180 isn't going to hurt anything anyway. Dale > Subject: Re: [Chevelle-List] Finding #1 TDC > > > I glad to see someone state the correct method of finding TDC. You must > rotate in both directions as stated. This is the true method. > This accounts > for an play. Thanks. > Keith > ----- Original Message ----- > From: <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Friday, April 05, 2002 10:25 AM > Subject: [Chevelle-List] Finding #1 TDC > > > > Buy or make a piston stop and screw it into the #1 plug > > hole. Rotate the crankshaft CW until the stop contacts > > the piston. Mark the position of the damper timing mark > > on the block. Now rotate the crank CCW until the stop > > hits the piston and again mark the position of the > > timing mark. The halfway point between the 2 marked > > points will show you where TDC is, and if it's not the 0- > > degree mark on the timing tab you know that either the > > tab and damper are mismatched or the damper's outer ring > > has slipped. > > > > You can do this on either the compression stroke or the > > exhaust stroke as long as you remember which one you > > were on when it comes time to installing the distributor. > > > > Brad > > > > > OK: What is the best way to determine TDC for Cylinder 1 if the > distributor > > > was pulled prior to marking or if you are putting in a new > one? Do you > pull > > > the head and manually crank it? > > > > > > Tony Gray > > > > ------------------------------------------------ > > Get the award winning ISP, AT&T WorldNet Service > > http://download.att.net/webtag > > > > ----------------------------------------------------- > > To Unsubscribe please visit www.chevelles.net/list.html > > To start a new topic, send mail to: [EMAIL PROTECTED] > > > > > > ----------------------------------------------------- > To Unsubscribe please visit www.chevelles.net/list.html > To start a new topic, send mail to: [EMAIL PROTECTED] > ----------------------------------------------------- To Unsubscribe please visit www.chevelles.net/list.html To start a new topic, send mail to: [EMAIL PROTECTED]
