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From a Chevy Dealer.
engine front to back: 1,2,3,4,5,6 distributor from #1 going clockwise: 1,5,3,6,2,4 how do you find #1 on distributor
A parts store or on a car at car shows. Old auto repair books.
The #1 cylinder should be the first plug clockwise from the electrical connections on an HEI distributor. Or, the first plug clockwise from 3 O'Clock when facing towards the rear of the vehicle.
The clutch bleed valve on a 2.2 liter Chevy Ecotec engine is located on the slave cylinder. To find the slave cylinder remove the battery, as it is mounted underneath the battery tray.
You may not have a distributor with wirse. Look under the coil packs. You should find them there. You may not have a distributor with wirse. Look under the coil packs. You should find them there.
I have one but cap and vaccuum advance are missing.
It should be marked on your distributor cap. Just find the wire next to the one and follow it to the cylinder.
Easiest way to find it is to set #1 piston at TDC and remove the distributor cap to see where the rotor is pointing. It should be pointing to #1 cylinder position in relation to the distributor cap.
inside of the distributor
Chevy 350 cylinder 1 on top dead center timing mark aligned , rotor should be at 7:00 (standing at front) distributor cap should be square with engine 7:00 should be at #1 on cap
The 4 cylinder is ( 2.0 liter ) The V6 is ( 2.5 liter )