SETTING TIMING ???
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Joined: Dec 2006
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From: ms. gulf coast
Car: 91 R/S , 89 dodge p/u
Engine: L31 GM crate re-cammed , 318
Transmission: T-5 , 4 speed auto
Axle/Gears: 3.42 , ?
SETTING TIMING ???
setting timing after engine swap . (L03 to L31) dis-connected EST wire , set timing . set at 5 deg BTDC , re-connected EST wire (eng. running) , rev engine , no change in timing with rev's . ECM is stock settings for now . I feel I should see timing change with RPM change . I'm puzzled ? any comments or ideas ? thanks ...
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Joined: Sep 1999
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From: Philly, PA
Re: SETTING TIMING ???
I've always shut down the motor, then reconnected and fired it up again. Not sure if it catches the timing wire reconnect in a running state.
Also, just checking here, but you are disconnecting the tan wire with a black stripe at the weatherpack connector that's poking out of the main wiring harness above the heater box, correct? That's the timing wire. Apologies if this was already super-obvious knowlege to you, but some people have been known to disconnect the wrong wire.
Also, just checking here, but you are disconnecting the tan wire with a black stripe at the weatherpack connector that's poking out of the main wiring harness above the heater box, correct? That's the timing wire. Apologies if this was already super-obvious knowlege to you, but some people have been known to disconnect the wrong wire.
Thread Starter
Supreme Member
iTrader: (1)
Joined: Dec 2006
Posts: 2,403
Likes: 4
From: ms. gulf coast
Car: 91 R/S , 89 dodge p/u
Engine: L31 GM crate re-cammed , 318
Transmission: T-5 , 4 speed auto
Axle/Gears: 3.42 , ?
Re: SETTING TIMING ???
I've always shut down the motor, then reconnected and fired it up again. Not sure if it catches the timing wire reconnect in a running state.
Also, just checking here, but you are disconnecting the tan wire with a black stripe at the weatherpack connector that's poking out of the main wiring harness above the heater box, correct? That's the timing wire. Apologies if this was already super-obvious knowlege to you, but some people have been known to disconnect the wrong wire.
Also, just checking here, but you are disconnecting the tan wire with a black stripe at the weatherpack connector that's poking out of the main wiring harness above the heater box, correct? That's the timing wire. Apologies if this was already super-obvious knowlege to you, but some people have been known to disconnect the wrong wire.
thanks for the reply . I'm wondering about re-connecting EST while engine running also . I will try your suggestion and see , thanks . any more/other comments ?
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