Timing 90 degrees BTC

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Aug 24, 2002 | 11:40 AM

roanoke1

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Joined: Jun 2002

Posts: 15

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From: Tucson USA

Timing 90 degrees BTC

The timing is showing that it is approx. 90 BTC. It idles so so, but I was wondering if the distributor was installed correctly when I had it replaced last winter. It has always run sluggish, so I didn't pay much attention until this summer when the AC was on and it would die. Is it possible it could have been put in that far off and the engine would still start and run. It never backfires or stalls unless the AC is on at idle in drive or reverse. I have done everything that I could think of, and that several mechanics have suggested to correct the idle problem. This is the first time I have used the timing light on it since the distributor was put in; not believing that could be it. Should I try to reinstall the distributor. Does it sound like the timing chain has skipped.

Thanks in advance

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5.0L 302FI

Aug 25, 2002 | 06:25 AM

mshumack

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Joined: Jul 2002

Posts: 313

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From: Orlando

Timing 90 degrees BTC

Sound like you have the timing light on the wrong wire. Soory for the obvious. Facing engine from front - number one plug is front left. If you have vaccum advance, remove hose and plug.
If timing chain jumped a tooth it would be runing real bad and reindexing the distributor would not be the fix.

Aug 25, 2002 | 10:44 AM

Franklin2

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Joined: Jan 2001

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From: Virginia

Timing 90 degrees BTC

[updated:LAST EDITED ON 25-Aug-02 AT 12:40 PM (EST)]He listed that he had a fuel injected motor, so he needs to make sure he disconnects the spout connector before checking the timing. This takes the timing control away from the computer, which will fight you if you try to move the timing with it hooked up. The timing spec should be on a sticker in the engine compartment somewhere. The spout connector is the single wire plug going to the distributor.

But even with the spout still connected, it shouldn't be that far off. Check your hook-ups like the other posters have said.

Aug 25, 2002 | 10:44 AM

Mil1ion

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Timing 90 degrees BTC

90* would be two cylinder's apart on a V8

I would suggest the timing light is set for a 4cyl or 6cyl engine

When is comes to timing there are so many things that can change it.

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