HeyCharger
New member
Just trying to time my engine (392) and I note that it has two identical timing marks on the pulley (180 deg apart). Why and which one is the real one? Cheesy rod. 
TWO timing marks
- Thread starter HeyCharger
- Start date
Scoutboy74
Moderator
There should be just one scribed line across the machined surface of the harmonic balancer.
You mean two "notches" in the pulley "rim" nearest the timing cover? Picture?
If the engine is running (reasonably well), you can use the one the "shows up" in the timing light.
Otherwise, you need to find tdc (compression stroke) of the #8 cylinder. If there is a "notch" by the timing pad, Mark (paint?) and use it.
I assume you are aware that IH sv v8 engines are timed off the #8 cylinder. (pass side / firewall on left hand drive vehilces)
if there is no "notch" by the timing pad, then, I have to assume that the harmonic balancer has failed and needs to be rebuilt.
If the engine is running (reasonably well), you can use the one the "shows up" in the timing light.
Otherwise, you need to find tdc (compression stroke) of the #8 cylinder. If there is a "notch" by the timing pad, Mark (paint?) and use it.
I assume you are aware that IH sv v8 engines are timed off the #8 cylinder. (pass side / firewall on left hand drive vehilces)
if there is no "notch" by the timing pad, then, I have to assume that the harmonic balancer has failed and needs to be rebuilt.
HeyCharger
New member
Hi guys. Thanks for your input. I was wrong (again), there are not two timing marks, just one big one. So I've been able to time it. Thanks. Rod.