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adman123 · 11-15-2004, 11:11 AM

On the weekend I decided to due a minor tune up. I changed the plugs, wires, Distrubutor cap & rotor on my 396 & went to start it back up it ran but very rough & stalled a few times. Then it started spitting gas back throught the carb & a small fire in the carb????

Timing off???? not sure how never moved the distributor???
Any help would be great.

Thanks

stickshift_or_walk · 11-15-2004, 11:16 AM

First thing in such a case - carefully check each plug wire to make sure they're in the right sequence and running to the correct cylinder.

I've done it, as have most others. You look at it for 3 hours, can't see it, then your buddy walks up and says "aren't these hooked up wrong"?...

SSOW

biglou55 · 11-15-2004, 11:16 AM

You have crossed spark plug wires. check every one with the firing order on the intake manifold. if it is original. if not get a tune up book.

adman123 · 11-15-2004, 11:19 AM

anyone know the firing sequence for a 396????

jhow66 · 11-15-2004, 11:33 AM

1-8-4-3-6-5-7-2---clockwise
drivers side 1-3-5-7
pass. side 2-4-6-8

adman123 · 11-15-2004, 11:34 AM

Thanks everyone will try that & see where it takes me!!!

SLS · 11-15-2004, 11:50 AM

Ditto jhow66.

Here's a pic for reference:

adman123 · 11-15-2004, 12:13 PM

Thanks for the diagram that is perfect!!! Hopefully I just mixed a wire up!

11-15-2004, 11:11 AM	#1
adman123 Registered User Join Date: Oct 2004 Location: TAMPA FL Posts: 12	Need help everyone! On the weekend I decided to due a minor tune up. I changed the plugs, wires, Distrubutor cap & rotor on my 396 & went to start it back up it ran but very rough & stalled a few times. Then it started spitting gas back throught the carb & a small fire in the carb???? Timing off???? not sure how never moved the distributor??? Any help would be great. Thanks

11-15-2004, 11:16 AM	#2
stickshift_or_walk Left Foot Functioning Join Date: May 2004 Location: Duncan, OK Posts: 350	First thing in such a case - carefully check each plug wire to make sure they're in the right sequence and running to the correct cylinder. I've done it, as have most others. You look at it for 3 hours, can't see it, then your buddy walks up and says "aren't these hooked up wrong"?... SSOW __________________ 69 C10 (#1 son's ride) 72 C20 (Dad's farm truck) 82 K30 (Ex - brush pumper project)

11-15-2004, 11:16 AM	#3
biglou55 Senior Member Join Date: Sep 2002 Location: Greenfield Mass. Posts: 551	You have crossed spark plug wires. check every one with the firing order on the intake manifold. if it is original. if not get a tune up book. __________________ Certifiably crazy person

11-15-2004, 11:19 AM	#4
adman123 Registered User Join Date: Oct 2004 Location: TAMPA FL Posts: 12	diagram anyone know the firing sequence for a 396????

11-15-2004, 11:33 AM	#5
jhow66 Registered User Join Date: Jun 2002 Location: Knoxville Tenn. Posts: 3,058	1-8-4-3-6-5-7-2---clockwise drivers side 1-3-5-7 pass. side 2-4-6-8 __________________ 56 Chevy Bel-Air 2dr. HT (purchased new) 71 Chevy Cheyenne SWB PU (502HO) 65 GMC short bed step--work in progress and my gofer

11-15-2004, 11:34 AM	#6
adman123 Registered User Join Date: Oct 2004 Location: TAMPA FL Posts: 12	Thanks everyone will try that & see where it takes me!!!

11-15-2004, 11:50 AM	#7
SLS Finish the'71..or bust! Join Date: Jun 2003 Location: Nashville, TN. Posts: 441	Ditto jhow66. Here's a pic for reference:

11-15-2004, 12:13 PM	#8
adman123 Registered User Join Date: Oct 2004 Location: TAMPA FL Posts: 12	Thanks for the diagram that is perfect!!! Hopefully I just mixed a wire up!

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