86 5.0 - No spark..no reason

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11-11-2007, 09:58 AM

#11

slickshift

1st Gear Member

Join Date: Aug 2007

Location:

Posts: 66

RE: 86 5.0 - No spark..no reason

Quote:

ORIGINAL: Joel5.0

The box is an add-on....... you could bypass it, remove it, and check if the no spark problem is present with the stock TFI setup.

Yup
That's the next step for diagnosing this problem

11-11-2007, 04:36 PM

#12

jmtertz

Thread Starter

Join Date: Nov 2007

Posts: 6

RE: 86 5.0 - No spark..no reason

The box is an add on? I guess I'm confused on how this ignition system is set up.

11-11-2007, 06:56 PM

#13

Joel5.0

5th Gear Member

Join Date: Jan 2006

Location: Puerto Rico

Posts: 3,926

RE: 86 5.0 - No spark..no reason

Quote:

ORIGINAL: jmtertz

The box is an add on? I guess I'm confused on how this ignition system is set up.

The HI-6 is the equivalent to a MSD 6AL, they are used as "amplifiers" for the coil, you remove the amplifier, and the system should work in "stock" trimming.... check figure #9 in http://www.cranecams.com/pdf/90006000c.pdf.

11-11-2007, 07:08 PM

#14

jmtertz

Thread Starter

Join Date: Nov 2007

Posts: 6

RE: 86 5.0 - No spark..no reason

Thanks Joel, that makes sense. I figured this was a part of a stand alone ignition system. That explains the OEM distributor and how it functions. I'll remove the box and see what happens. Thanks for the help.