2nd to the v mark
http://www.truckforum.org/forums/gmc-truck-forum/10885-97-5-7l-vortec-timing-reset-question.html
I could be wrong, but I have a Vortec 350 in a GMC truck and I think the computer handles the ignition timing. If your talking about valve timing I would assume there are marks on the timing gears like the days of old, but I haven't torn the timing cover off of mine yet.
There is no more timing marks for a 98 vortec you have to go off marks on distribitor & use a scanner. You are setting cam timing
The timing tab will be drivers side, right abover the bottom pulley. The dampner will have a slot cut accross it's surface. Via strobe, or timing light, these two will line up.
The timing is set by the computer. It calculates the advance based on the Crank Position Sensor. There is a TDC indicator. Some are on the flywheel and others on the front crank dampner. The ones on the flywheel usually have the CP Sensor on the top of the bellhousing.
The timing marks on your Isuzu 4hf1 engine can be set by looking at the timing marks on the timing belt pulley. The timing belt marks are facing towards the front of the automobile.
The timing marks on your Isuzu 4hf1 engine can be set by looking at the timing marks on the timing belt pulley. The timing belt marks are facing towards the front of the automobile.
Timing marks are on the sprockets and on the timing belt itself. No other marks are necessary.
timing marks are , marks on camshaft sprocket, an on crankshaft sprocket'.
You can set the camshaft timing on your automobile by lining up the timing marks. There will be timing marks on the front main pulley and timing marks on the camshaft.
the timing marks are on the cam and crank gears in the timing case.
Timing marks