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10-05-2012, 09:40 PM
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#1 |
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Registered User
Join Date: Mar 2000
Location: Lake Jackson, TX.
Posts: 1,930
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Timing on an 87
Ok tell me how to set the initial timing of this 87. It's computer controlled so, what I need to know is, if I remove the distributor and reinstall, ow do I set the initial. What do I set it at.
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2004 Silverado Crewcab (Dark Spiral Gray) |
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10-05-2012, 11:27 PM
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#2 |
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Registered User
Join Date: Feb 2012
Location: Rising sun Maryland
Posts: 28
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Re: Timing on an 87
I set my 87 timing to factory spec. With the single wire on the driver side firewall unpluged. You set the timing @ 0 degrees. Mines a 305 v8
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10-06-2012, 08:33 AM
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#3 |
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Registered User
Join Date: Mar 2000
Location: Lake Jackson, TX.
Posts: 1,930
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Re: Timing on an 87
Ok that was my question, was there a single wire that has to be disconnected. Thanks, that's what I needed BTW, mine is a 5.7
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2004 Silverado Crewcab (Dark Spiral Gray) |
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10-06-2012, 09:42 AM
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#4 | |
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Registered User
 
Join Date: Apr 2009
Location: New Freedom Pa.
Posts: 1,335
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Re: Timing on an 87
Quote:
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10-06-2012, 09:58 AM
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#5 |
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Registered User
Join Date: Apr 2012
Location: Denver CO
Posts: 67
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Re: Timing on an 87
you can set the timing at 1-2 degrees above zero
i would not go much more Listen for pinging ... here in denver every TBi i tune i go for 3 degrees and it does make an improvement |
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10-06-2012, 10:12 AM
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#6 |
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Registered User
Join Date: Dec 2011
Location: Regina, SK, Canada
Posts: 622
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Re: Timing on an 87
It is a brown wire if you cannot tell from pic
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1979 Chevy Dually Crew 4X4 454, D60 Tru-trac, D70 Detroit Locker, 3.73, 4L80E/NP205 1971 GMC 3/4 Ton 4X4 |
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10-07-2012, 07:49 PM
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#7 |
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Registered User
Join Date: Mar 2000
Location: Lake Jackson, TX.
Posts: 1,930
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Re: Timing on an 87
Thanks, I didn't have time to mess with it today, but I did PRESSURE WASH THE UNDER NEATH AND THE ENGINE COMPARTMENT. was pretty clean anyway. I need to get some picture up of it
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2004 Silverado Crewcab (Dark Spiral Gray) |
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10-07-2012, 08:18 PM
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#8 |
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Registered User
Join Date: Jun 2012
Location: Lakeland fl
Posts: 67
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Re: Timing on an 87
Ok so I got a 87 with a 350 and tbi and what you guys are saying is that I have to disconnet that brown wire to set the timeing even though the distributor is electronic.
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10-07-2012, 08:26 PM
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#9 |
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Registered User
Join Date: Mar 2000
Location: Lake Jackson, TX.
Posts: 1,930
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Re: Timing on an 87
Yes, it's just disabled the computer so the base timing can be set. Then you hook it back up and the engine takes over
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2004 Silverado Crewcab (Dark Spiral Gray) |
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10-07-2012, 08:45 PM
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#10 |
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Registered User
Join Date: Jun 2012
Location: Lakeland fl
Posts: 67
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Re: Timing on an 87
Ok thanks.What would happen if you set timeing with out unpluging the brown wire.
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10-07-2012, 08:54 PM
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#11 |
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Registered User
Join Date: Sep 2009
Location: Weare,NH
Posts: 1,592
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Re: Timing on an 87
the timing wouldn't be right, with that connected the computer is adjusting the timing even at idle.
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