Wont Start, What Gives??????? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

BLUE THUNDER · 07-03-2007, 10:19 PM

I have a 72 blazer with a 350/350 set up. I (mostly JTRUX)put on a carter performance series carb about a month ago and it ran alot better. The next upgrades were the plugs and wires. After putting on new plugs and 8mm wires (JTRUX AND I AGAIN)my truck wouldn't start. I have an hei dist and bought the plugs for a 76 chevy 350 and gapped them to .045. i cranked the motor until the battery died. We advanced and retarded the timing and still no starting. anyone have any ideas?

jhow66 · 07-03-2007, 10:57 PM

Did you wire it this way? Are you getting power at the "B" post? Pull a plug wire off and put a spark plug in it and lay on metal. Crank engine to see if there is a spark at the plug gap.

*trkklr77* · 07-03-2007, 11:10 PM

yup did you plug the coil back in or reconnect the battery when you finished?

i spent last weekend putting my sbc in and got all mixed up and out of whack. i couldnt get it to cough sputter or pop for nothin, then i realized i hadnt installed plugs and wires after doing hedders!!!

BLUE THUNDER · 07-03-2007, 11:22 PM

I'll double check the B post, tomorrow morning. Thanks.

BLUE THUNDER · 07-05-2007, 12:16 AM

re-checked the plug wires and saw that the spark was really weak. It coughs a little when i turn it over but wont start. any ideas? i double checked the wires on the dist and the firing order.

*trkklr77* · 07-05-2007, 01:48 AM

your coil may be to weak to bust spark at that amount of gap, grab a hot aftermarket coil or even a new stocker.

krue · 07-05-2007, 02:05 AM

Have your coil checked, check your ignition module while you're at it, but those usually work or don't work.

pound41 · 07-05-2007, 09:04 AM

Check the module in the dist they just go and thats it.

07-03-2007, 10:19 PM	#1
BLUE THUNDER Registered User Join Date: May 2007 Location: San Antonio Posts: 993	Wont Start, What Gives??????? I have a 72 blazer with a 350/350 set up. I (mostly JTRUX)put on a carter performance series carb about a month ago and it ran alot better. The next upgrades were the plugs and wires. After putting on new plugs and 8mm wires (JTRUX AND I AGAIN)my truck wouldn't start. I have an hei dist and bought the plugs for a 76 chevy 350 and gapped them to .045. i cranked the motor until the battery died. We advanced and retarded the timing and still no starting. anyone have any ideas?

07-03-2007, 10:57 PM	#2
jhow66 Registered User Join Date: Jun 2002 Location: Knoxville Tenn. Posts: 3,058	Re: Wont Start, What Gives??????? Did you wire it this way? Are you getting power at the "B" post? Pull a plug wire off and put a spark plug in it and lay on metal. Crank engine to see if there is a spark at the plug gap. Attached Images __________________ 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

07-03-2007, 11:10 PM	#3
trkklr77 Account Suspended Join Date: Aug 2006 Location: vacaville ca, because it as far from indy as i can be Posts: 775	Re: Wont Start, What Gives??????? yup did you plug the coil back in or reconnect the battery when you finished? i spent last weekend putting my sbc in and got all mixed up and out of whack. i couldnt get it to cough sputter or pop for nothin, then i realized i hadnt installed plugs and wires after doing hedders!!!

07-03-2007, 11:22 PM	#4
BLUE THUNDER Registered User Join Date: May 2007 Location: San Antonio Posts: 993	Re: Wont Start, What Gives??????? I'll double check the B post, tomorrow morning. Thanks.

07-05-2007, 12:16 AM	#5
BLUE THUNDER Registered User Join Date: May 2007 Location: San Antonio Posts: 993	Re: Wont Start, What Gives??????? re-checked the plug wires and saw that the spark was really weak. It coughs a little when i turn it over but wont start. any ideas? i double checked the wires on the dist and the firing order.

07-05-2007, 01:48 AM	#6
trkklr77 Account Suspended Join Date: Aug 2006 Location: vacaville ca, because it as far from indy as i can be Posts: 775	Re: Wont Start, What Gives??????? your coil may be to weak to bust spark at that amount of gap, grab a hot aftermarket coil or even a new stocker.

07-05-2007, 02:05 AM	#7
krue Designated A-hole! Join Date: Mar 2003 Location: South Mississippi Posts: 36,448	Re: Wont Start, What Gives??????? Have your coil checked, check your ignition module while you're at it, but those usually work or don't work. __________________ "If it ain't broke, fix it 'til it is!" Being stupid ain't illegal. We're Still Debt Free Except for the House!!! www.daveramsey.com 70 GMC SWB Stepside project "Green Booger" soon to be 6.0l/4l80e 93 S-10 "Poppaw's Truck"

07-05-2007, 09:04 AM	#8
pound41 Registered User Join Date: Dec 2002 Location: Northern Virginia Posts: 1,268	Re: Wont Start, What Gives??????? Check the module in the dist they just go and thats it.



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