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nrb's70gmc · 03-29-2010, 02:39 PM

Hello guys i was hopping i could get a few ideas or maybe an answer to my hei problem.

i have a sb350 with a mallory hei about 8 months ago i replace the cap/rotor/module.

about a month later after that, i was driving my truck and it just died (no spark) turns out when i replaced all that stuff i pinched one of the coil wires when i screwed the dust cover on.

so i bought a new coil and put it in- everything has been fine sence.

today i was pulling out of my driveway and the truck started sputtering and cutting out. i thought it might be a moisture problem so i pulled the cap off everything is dry and the rotor looks good.

i noticed whare the carbon brush goes thought the center of the cap (underside) that the plastic was chipped- so figued that was the problem.

i got a new cap and put it on i went a round the block and its doing the same thing so i guess that wasn't the problem.

im reallllly confused now because yesterday it was runnin fine.

so what do you guys think it could be?

03-29-2010, 02:39 PM	#1
nrb's70gmc Registered User Join Date: Sep 2008 Location: magalia,ca Posts: 366	HEI Ignition Problem Hello guys i was hopping i could get a few ideas or maybe an answer to my hei problem. i have a sb350 with a mallory hei about 8 months ago i replace the cap/rotor/module. about a month later after that, i was driving my truck and it just died (no spark) turns out when i replaced all that stuff i pinched one of the coil wires when i screwed the dust cover on. so i bought a new coil and put it in- everything has been fine sence. today i was pulling out of my driveway and the truck started sputtering and cutting out. i thought it might be a moisture problem so i pulled the cap off everything is dry and the rotor looks good. i noticed whare the carbon brush goes thought the center of the cap (underside) that the plastic was chipped- so figued that was the problem. i got a new cap and put it on i went a round the block and its doing the same thing so i guess that wasn't the problem. im reallllly confused now because yesterday it was runnin fine. so what do you guys think it could be? __________________ 1970 2wd 3/4 ton- 2004 crate 350 thorley tri-y headers-edelbrock performer eps manifold 600cfm performer carb, crane cams energizer cam,lifters, dual 2.5 magnaflows, mallory HEI, powermaster 140 amp altenator, griffen aluminum radiator.(8 MPG) Last edited by nrb's70gmc; 03-29-2010 at 02:41 PM.