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HEI problem
https://slantsix.org/forum/viewtopic.php?t=61064		 Page 1 of 1
Author:  Studebake Jim [ Thu Apr 27, 2017 11:26 am ]
Post subject:  HEI problem
1982 D-150, slant 6, 1 barrel....Last week at the traffic light, my truck quit....no spark, coasted back to the house and pulled into the driveway....figured the old lean burn finally quit so I decided to do the HEI, I had been gathering the stuff up for the last month. Motor cranks fine.
12.3 into #30 relay connected to alternator, 12.3 volts into the FD478 coil, 12.3 volts going into the B trigger connection- no volts on the G connector, ....no spark at the plugs....I grounded everything and tested the grounds....Dist. is good, swapped into a friends 77 Volare to make sure....any Ideas what I did wrong?
:(
Author:  Studebake Jim [ Thu Apr 27, 2017 11:37 am ]
Post subject:  also
Just curiosity, if the oil pressure switch was bad, will that keep it from starting? Have not checked it yet.
Author:  Reed [ Thu Apr 27, 2017 11:39 am ]
Post subject: 
HEI unit is grounded? Did you snip off the little plastic zit on the back of the module so it sits flush against the heatsink? The HEI unit grounds though the back plate so the back plate must sit flush to whatever you are using as a heatsink.

Did you try swapping the leads to the distributor?
Author:  Reed [ Thu Apr 27, 2017 11:40 am ]
Post subject:  Re: also
Quote:
Just curiosity, if the oil pressure switch was bad, will that keep it from starting? Have not checked it yet.
Depends on where you got the + feed for the HEI unit and coil from. The electric choke thermostat assist gets its power feed throgh the oil pressure switch circuit, so if that is where you tapped in to get + for the HEI module then you might not have power.
Author:  Studebake Jim [ Thu Apr 27, 2017 1:43 pm ]
Post subject: 
Zits filed off + I ran a separate ground wire to the motor. feed come from alternator. I will try swapping leads on W&G sides ....should the G or W have voltage? I would think so. Switched leads to dist.....no change
Author:  afastcuda1970 [ Thu Apr 27, 2017 4:42 pm ]
Post subject: 
Take module to auto parts store and have them test it. I got a bad one once.
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