Is there an easy way to find TDC for 1 on a Chevy 350 with out pulling the timing cover and no timing tab?
There are several ways to find TDC, but the easiest and most
accurate I have found short of a dial indicator requires nothing
more than an old spark plug, clear plastic tube, and a clear jar
filled with water. It is made up of a simple fitting from an old
spark plug housing, attached clear tubing and run it into a jar of
water. Bubbles will come out on compression, stop at TDC and start
sucking up water immediately after TDC. Work the crank back and
forth slightly a couple times to get accurately centered. It is
easy to see the water level position inside the small tubing. This
method is very simple and very accurate. Make sure to remove all
spark plugs and spray some oil in each cylinder. This will make the
engine very easy to turn by hand.
OR remove #1 spark plug and slip a small device of some sort
into hole and rotate motor by hand while feeling for piston to come
up. once you feel the piston keep going until it stops traveling
up. NOTE. the motor MUST be turned by hand. If you crank with
starter it could break off what you are using to feel with.
once you establish positive TDC mark it on timing cover and
balancer so you know where it is later.