where is the timing marks on a 350 chevy?

Answer 1

The car should have a plate that is over the harmonic balancer that kind of looks like pair of W's put together. On the harmonic balancer there is a groove, and with the vehicle running, adjust the distributor timing until you get the vehicle where it is running the best (anywhere between 10 degrees above or below center), and then tighten everything up and test drive it and make sure the distributor doesn't move. I have had cars where I set the timing to the manufacturer spec, and when set, the car runs like garbage. So, I just adjust the vehicle to where it runs the best, and lock the distributor down.

Answer 2

the timing marks on a Chevy small blocks are on the harmonic balancer, there will be a small line and or groove on the balancer, and if you mark it with some white out or a oil marker it will make it easyer to see when timing, the timing tab is at the bottom front drivers side next to the harmonic balancer.

when timing your small block or any motor, if your doing initial timing you need to know if you have a vaccum controlled or computer controlled distributor, with computer controlled just start let it warm up and time it, with a vaccum controlled you need to start let it warm up and remove and plug the hose going to the distributor and then time it, and it most be warmed up as this can change what the time is after it has warmed up.

but i never do initial timing as to many things may have been changed and if you dont know the motor, the best way to time any motor it called (TOTAL TIMING)
and all motors are done in the same way, and no need to remove or plug any hose.
if your motor is stock?
you will want to time it at 38deg btc @ 3000RPM
if your motor has a cam and or other build ups
you will want to time it at 36deg btc @ 3000RPM
if NOS or a blower is added you need to take off 2deg for every 125HP added @ 3000RPM

there is no better way to time a car (NONE)

Answer 3

Timing marks vary from older 350's to newer, electronicly controlled ones. There are marks on the Harmonic Balancer, that kind of wheel at the bottom of the engine with the belts on it.

If you take a flashlight and look down there, most likely you'll see them. If not, have someone else barely tap the engine with the starter, and keep looking. You'll find them. It may be dirty down there, and you may have to clean the surface of the Balancer, but they are there. Did someone move the timing? Why are you adjusting?

Roy

Answer 4

You have to lean into the motor area and look directly down behind the water pump onto the harmonic balancer area. The timing marks are attached to the timing chain cover and the timing mark is a cut on the balancer itself.

Answer 5

On the damper just ahead of the drive pulley for ignition. The cam timing mark is a punch mark on the drive end, it lines up with the mark on the drive sprocket on the crankshaft.

Answer 6

even if that is idling hard ensure that you do haven't any vacuum leaks. Plug off the vacuum develop hose at the same time as your putting it and placed it at 4 btdc or perhaps if it remains somewhat hard bump it as a lot as 6 btdc. examine your plugs, wires, and cap and rotor for placed on. make sure rather that your plugs have the right hollow(it makes a large massive difference). make sure it isn't sucking air in gas gadget both with the aid of the indisputable fact that could want to extremely lead them to idle hard. strong luck

Answer 7

depending on year right behind the fan,on the harmonic balancer,look with a flashlight and you will see a groove or line in it mark it with white out then you can set your timing

Answer 8

Thanks HOTROD we learn a new thing everyday.