Sublime
Full Access Member
- Joined
- Oct 7, 2016
- Posts
- 169
- Reaction score
- 60
- Location
- usa
- First Name
- m
- Truck Year
- 1978
- Truck Model
- k10
- Engine Size
- 350
Hi all, I am tuning my engine, new plugs gapped at .35 and new wires. My problem is ignition timing. This is what I did. Disconnected the vacuum line at the carburetor and plugged the cab nozzle. Marked the engine tab at zero (with chalk), well I believe its zero its hard to see, I circled the line on the tab that is marked
I then marked the harmonic balancer at 34.
my timing light is very old and has no special features. I connected the power and spark plug sensor to the drivers side front spark plug #1.
started the truck. revved the engine to 3000 rpm and turned the distributor until the harmonic balancer mark lined up with the zero on the tab. (yellow line indicates where the harmonic balancer line is at 3000 RPM.
at idle the harmonic balanced mark is to the right of the engine tab.
So I marked the harmonic balancer at zero and it is to the left of the tab at idle.
Is this correct? I was expecting the harmonic balancer mark to be to the right of zero on the engine tab.
The truck seems to have good pick up, cranks easily and no dieseling when shutting it down. I do not hear any pinging when under load but the truck is very loud and not sure Id hear it anyway.
1978 350
distributor is hei - pertronix, flame thrower, I have no idea what springs or weights are in the distributor.
accel shorty plugs gaped at .35
accel 8.8 wires
edelbrock 1405
You must be registered for see images
I then marked the harmonic balancer at 34.
my timing light is very old and has no special features. I connected the power and spark plug sensor to the drivers side front spark plug #1.
started the truck. revved the engine to 3000 rpm and turned the distributor until the harmonic balancer mark lined up with the zero on the tab. (yellow line indicates where the harmonic balancer line is at 3000 RPM.
You must be registered for see images
at idle the harmonic balanced mark is to the right of the engine tab.
You must be registered for see images
So I marked the harmonic balancer at zero and it is to the left of the tab at idle.
You must be registered for see images
Is this correct? I was expecting the harmonic balancer mark to be to the right of zero on the engine tab.
The truck seems to have good pick up, cranks easily and no dieseling when shutting it down. I do not hear any pinging when under load but the truck is very loud and not sure Id hear it anyway.
1978 350
distributor is hei - pertronix, flame thrower, I have no idea what springs or weights are in the distributor.
accel shorty plugs gaped at .35
accel 8.8 wires
edelbrock 1405