Hey guys I was wondering how to time an old lg4 305. It’s in the car and its running but I know it’s off a little. How to, or tips would be great. Thanks guys

 

Are you talking about the '82 in your user info and sig?

Assuming that's the case, and it's a stock set-up:

Disconnect the flat 4-wire connector that goes from the distributor base to the firewall harness. Start the engine. Aim the timing light (connected to the #1 spark plug wire) at the timing tab. Set between zero (stock) to 6 degrees advanced (typically helps performance, may have negative effect on emissions) at idle. Turn off engine, reconnect the flat 4-wire connector.

Doing this sets a trouble code for cam sensor fault. You can clear it by disconnecting the ECM power wire for a minute, or letting it clear itself after 50 starts.

(Do you know how to set up a timing light, and actually adjust the timing by turning the distributor body?)

 

yah kinda i do. i just need a step by step really, thanks man

 

Was that enough detail?

 

Basically, all you do is take your timing light and attach the harness to your #1 spark plug wire, then attach the positive clip to your positive battery terminal, and the negative clip to a good ground.

Figure out where your timing indicator tab is. For my car, it is somewhat hidden underneath the water pump and various vacuum lines so start looking around that area.

You'll want your car working at operating temperature before you try setting the timing. Drive it around the block a few times, turn the car off and hook up the timing light. Disconnect the 4-pin wiring harness that five7kid mentioned. Turn the car back on and locate the tab.

From there, shine the light on the tab until you can see where your timing is at. Your crankshaft will have a notch on it somewhere, and it always hits the same position on every revolution of the engine. It's impossible to see without the timing light though. The notch will line up with whatever your timing is currently set at (at least according to the tab) during every revolution of the engine. With this you can determine what your base timing is. For an LG4 car, it should be at 0*, but after all these years it may not.

To adjust it, you simply unscrew the distributor hold down clamp (located on the left of the distributor base, if you're looking from the front of the engine) and turn the distributor itself VERY slightly clockwise or counterclockwise. I can't remember for sure which advances and which retards, but I think clockwise advanced the timing and counterclockwise retards it. Don't quote me on that, though... it's been a while since I've had to mess with mine.

Hope that helps.

 

I would hope somebody that runs a 10-sec, 140 MPH car knows how to use a timing light and rotate the distributor to adjust the timing. But, I've been wrong about such things before. . .

 

lol yah i know how to run one. yah man i really hate this 305. my old 383 was starting to run pretty bad so im going to rebuild it hopefuly soon. the only motor i had left was this lg4 305. good lord its slow. im talking like 14 or 15sec slow. i hate it becouse everytime i start thinking about it i start wanting to put some go fast parts on it but its not worth it at all. you know what i mean

 

Dude's got a 10 second street-car but cant time a motor? i've seen it all!


Just messing with you bro..

 

well its not really a street car. i dont run a 10:11 anymore. that was her prime. right now im trying to get her to street but having problems. and yes i know its kinda funny. its been a long time since i have had to time one, so you all give me a break. lol

 

The label under the hood says that it is 0 at 500 (D)

500 RPM in Drive???? Do I need to have someone stand on the brake for me?? Blocks and parking brake suffice?? What did you guys do?