Question about 1986 Chevrolet C1500

1 Answer

Wiring an hei distributor

I have a 1990 s10. its got a 350 in it.i just bought a brand new accel hei distributor but dont know how to wire it.
do i need a spark box?
msd?
can i hard wire it?

Posted by on

Ad

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

  • Contributor
  • 24 Answers

You shouldn't need a spark box because thee coil is located in the dist. cap. You need to run a 12v switched power source to the side of the dist. cap that is marked dist. if it isn't maked it is the term. that is on the front right of the conector pad. the one on the left is for hooking up a tach.

Posted on Oct 07, 2009

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
New users get to try the service completely Free afterwhich it costs $6 per call and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I want to swap my old point style distributor for an Accel HEI distributor in my Chevy 283, what all do I need to do?


buy the new distributor and connect the wires up
all the details are in the box
you can buy the pointless internals to replace the points in your old distributor
go to the wreckers and buy a pointless distributor for your engine

Nov 04, 2016 | Cars & Trucks

1 Answer

INSTALLING HEI IGNITION AND NEED HELP


i have no issues WITH CAPS, used to have a home computer in 70s with ASR33 printing terminal that did all caps..... all the time.
Is this a 1990 jeep? and what engine? you never stated the engine
4.2 L AMC straight-6 engine?

what distributor are you running off what engine, and what year.
is it with full mech, advance and vacuum advance , pre 1986?
the nutter bypass, 4.2L
it cuts the ECU out of spark controls.

this means ECU advance is killed, on now only the dumb
module runs advance.
the stock system had a ballast resistance wire. and the
start wire to the the coil bypasses this wire. for full coil power.
this is not used in HEI.
infact there are many HEI setups. which one. 7wire. ?

here is 7
http://www.msextra.com/doc/ms1extra/MS_Extra_Hardware_Manual_files/ew7hei.gif


if i had your rig, it upgrade it to MSD. sure would. done many.
by doing that , all the mystery of parts, that works ends.
if you need help, spec out your set up, including, schematic
and BOM, parts used, p/n of parts used.

here are 3 HEI ( 4,5,7 pin)

http://brianesser.com/tech/wiring/msd/WDTN_pn9615_Page_030.jpg

The biggest issues is spark timing curves.
getting them right for those Webers.
and standalone spark controls win here.

the right way
http://www.jegs.com/p/MSD-Ignition/MSD-Ignition-Controller-for-GM-EFI-Carbureted-LS-Engines/758329/10002/-1

You tune the spark advance for YOUR engine and setup.
not that funky stock spark box and nutter mod.

my guess, is you burned up the ballast when it hit the real
inside distributor coil primary, that is totally the wrong coil
for a ballast. I hope it dont burn up a good coil,,,,,,,
The coil and all wiring for EFI must be correct
and the bypass for starting , is useless. for that distrubutor
because it runs 12v all the time, so if the ballast did stay good
the HEI would be running way too low , at 8v. running.
and would fail.
here is a great HEI page, under dev. but is good.

http://www.crankshaftcoalition.com/wiki/Hot_rodding_the_HEI_distributor

this link above shows how to get HEI right on a carb car
but fails to show the benefits of true spark advance tuning.
Great fuel economy can be attained under light loads
with large spark advance. and then less under full load.
(no pinging too)
The spark advance , allows the flame front to start at the correct time
to take advantage of piston rod angles.... and not send unburned fuel out the exhaust.
Id put an MSD in there and tune it carefully, I would. (webers a given)_

Feb 03, 2014 | 1990 Jeep Wrangler

1 Answer

I have a 72 chevelle with a 350 ci , I put an hei distrubitor in it but now my alt wont charge and its brand new what should I do...


The HEI has nothing to do with the alternator

The HEI needs battery voltage,not the resistor,
that was there for the point ignition distributor

Unless you moved wires around to feed the HEI,
you just diagnose the alternator as usual

New doesn't mean it works
Have to know how to test it

Sep 10, 2013 | 1986 Chevrolet C1500

1 Answer

I am trrying to install a msd street fire distributor #8362 hei other than the wires from the coil what wires from the plug that went directly to the old distributor do I need to hook up to the new on


Hello! The Mad Street #8362 is not for a seven pin, computer controlled engine...It is for a five pin distributor...I believe your engine has a seven pin connector...The correct distributor is a: MSD Ignition 8555Guru...saailer

Feb 12, 2012 | 1990 GMC Sierra

1 Answer

I have a 84 camaro with hei distributor motor is a 69 camaro 350 i keep melting the wires on the coil put new coil in car runs good for an hour or so then gets warm and melts wires and stall also did new...


HEI distributor and burning coils,it in you connection first make sure you install primary and secondary prorperly as it comes out of the cap , and inside the cap wire from modules dont make contact if you are burning its from primary circuit, this is the (B+) or (battery most likely), your secondary is your tach and that need to switch from postitive to negative for it to create spark obvously if tach was grounded or applied power you wont start,but there are times the condensor in the distributor does stays fixed and shorts out the coil (replace that condensor its for suppression) when the condensor is replaced run a fused direct wire at B+ (from ignition) run the vehicle and monitor the tach wire and check to see if that get hot

May 08, 2011 | 1984 Chevrolet Camaro

1 Answer

I have a 86 firebird need to know what the 4 wires are that go to the the hei distribator


ok looking from the driver's side of vehicle at your distributor. There is a power wire (which on most accel or msd distributors) on the right in the first row the wire connection on the left is for a tachometer the row behind it can either have 2 or 3 wires most of the time 1 is usually black and it grounds the ignition coil module inside the cap the other wire/s tranfers power from power connection to coil. A hei or high energy ignition system uses the coil module to amplify the voltage from the standard 30k volts to about 45-50k volts

May 03, 2011 | 1980 Chevrolet Corvette

1 Answer

Hei distributor on old L6 engiune won't fire coil


'56 engine was likely a "blue flame" engine that had a points type ignition system. If someone installed a HEI setup in there, you need to know what year vehicle it came from. The old system used a hot wire from the ignition switch to the (+) side of an external coil...the (-) lead went to the points. The most common conversion uses the same (+) wire but it then connects to the "batt" terminal on the distributor cap.(coil is inside) There are no other wires involved except for the short harness that goes directly into the distributor that connects the coil, pickup coil and control module to each other..

Sep 18, 2009 | 1999 GMC Sierra 3500

2 Answers

HEI DISTRIBUTOR PROBLEMS


This should help, firing order is counterclockwise, 1,8,4,3,6,5,7,2.c9602d8.jpg

Aug 24, 2009 | 1986 Cadillac DeVille

Not finding what you are looking for?
Cars & Trucks Logo

609 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

76630 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8499 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...