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06-06-2008, 03:21 PM
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#1 |
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Registered User
Join Date: Feb 2008
Location: oldsmar fl
Posts: 22
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timing ???
what is the timing specs. for a 1982 GMC 5.0 4bbl...thanks
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06-06-2008, 06:08 PM
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#2 |
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Right on the line, baby!
Join Date: Oct 2003
Location: Phila, PA 19130
Posts: 1,486
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Re: timing ???
My 1983 sticker says 4 degrees, idle speed 500 rpm in D, fast idle at 1600.
Haynes manual for 1982 says look at the sticker. For more info, read Billla's informative ignition timing FAQ.
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83 GMC 406 th400/3.73 Eaton Truetrac posi, headers, x pipe, & racePros. Tubular control arms, lowering rear springs, caltracs. Still ugly, but getting built right, although slowly Click and scroll down for site vendors! Subscribe here! |
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06-06-2008, 07:08 PM
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#3 |
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Registered User
Join Date: Feb 2008
Location: oldsmar fl
Posts: 22
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Re: timing ???
thanks...but im getting conflicting info...one source told me 8 to 12 deg. adavanced
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06-06-2008, 07:17 PM
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#4 |
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Registered User
Join Date: Feb 2008
Location: oldsmar fl
Posts: 22
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Re: timing ???
ok..got it..sticker on my truck says the same...is that with the vac. advance hose on or off...???.......thanks
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06-06-2008, 08:24 PM
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#5 |
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just can't cover up my redneck
Join Date: May 2004
Location: Columbus OH
Posts: 11,414
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Re: timing ???
If everything is stock....go with the sticker.
That would have a distributor that is calibrated for "ported" vacuum advance. The 4 degree setting is the factory specification. Even though there is not supposed to be any vacuum to the distributor at idle, (in a ported configuration) I would still disconnect it and plug the line when setting the timing. 8-12 is for distributors calibrated for "full" manifold vacuum. Last edited by LONGHAIR; 06-06-2008 at 08:26 PM. |
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06-06-2008, 08:30 PM
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#6 |
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Registered User
Join Date: Feb 2008
Location: oldsmar fl
Posts: 22
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Re: timing ???
thanks much guys...been a while since ive had my head under a hood...gettin a bit rusty i guess.........tks!!!
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06-06-2008, 09:51 PM
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#7 |
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Right on the line, baby!
Join Date: Oct 2003
Location: Phila, PA 19130
Posts: 1,486
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Re: timing ???
Glad you asked, glad to help.
__________________
83 GMC 406 th400/3.73 Eaton Truetrac posi, headers, x pipe, & racePros. Tubular control arms, lowering rear springs, caltracs. Still ugly, but getting built right, although slowly Click and scroll down for site vendors! Subscribe here! |
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