ignition timing

Pinner · 05-31-2007, 12:34 PM

Getting 2 different procedures for setting the timing on an 85' cutlass 307 engine. One says disconnect the 4-pin connector at the hei distributer to set timing. Other says ground with a jumper at the diagnostic connector under the dash. Which is correct? What is the proper way?

olds307owner · 06-03-2007, 04:22 PM

Well, the method I used on mine (It did work) is disconnecting the connector on the distributor. Not the one that connects the coil to the battery but another one on the other side. Once you remove it you set the timing and after the timing is at 20 you reconnect the connector.

joe_padavano · 06-03-2007, 06:49 PM

Quote:

Originally Posted by olds307owner

Well, the method I used on mine (It did work) is disconnecting the connector on the distributor. Not the one that connects the coil to the battery but another one on the other side. Once you remove it you set the timing and after the timing is at 20 you reconnect the connector.

The Factory Service Manual says to just ground the test terminal in the ALDL connector, though pulling the plug effectively produced the same result. Being lazy myself, I find it a lot easier to just stick a bent paper clip in the diagnostic connector.

Pinner · 06-05-2007, 04:32 PM

Thanks for the info guys, I appreciate it. Pinner

05-31-2007, 12:34 PM	#1 (permalink)
Pinner Junior Member Join Date: Mar 2007 Posts: 13	ignition timing Getting 2 different procedures for setting the timing on an 85' cutlass 307 engine. One says disconnect the 4-pin connector at the hei distributer to set timing. Other says ground with a jumper at the diagnostic connector under the dash. Which is correct? What is the proper way?

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06-03-2007, 04:22 PM	#2 (permalink)
olds307owner Junior Member Join Date: Apr 2007 Location: Roma, TX Posts: 23	Well, the method I used on mine (It did work) is disconnecting the connector on the distributor. Not the one that connects the coil to the battery but another one on the other side. Once you remove it you set the timing and after the timing is at 20 you reconnect the connector.

06-05-2007, 04:32 PM	#4 (permalink)
Pinner Junior Member Join Date: Mar 2007 Posts: 13	Thanks for the info guys, I appreciate it. Pinner