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Old 01-01-2017, 05:34 PM   #1
blf
Registered User
 
Join Date: Aug 2016
Location: Jacksonville, FL
Posts: 46
HEI, no spark after fuel injection install

Hey folks -- finally got time to work on my fuel injection install, wrapped everything up yesterday, and I cant get it to crank. The truck ran fine before I started working on it, but regardless I'm getting the sense it's a problem with my ignition/distributor. I do NOT have any ignition control with my FI setup, it ONLY reads the tach signal off the ignition.

Now I am pretty ignorant to how these things work. I probably know less about the ignition than just about anything on the truck, but here's what's going on:
  • No spark, tested with a jumper stuck into a plug wire, and holding near a ground. Also hooked up a timing light and it isn't flashing. I'm going to pick up a spark tester too, just to confirm.
  • Fitech reads "0" RPM during cranking -- it connects to the "tach" terminal on the distributor.
At first I saw the 0 RPM and thought that my issue was the Fitech not picking up the tach signal, but now I'm thinking there is no signal.

What I've done/tried:
  • Pulled the terminals from the distributor and hooked directly to them (see pix below) to make sure I have connections...
  • Reterminated/soldered the terminals back on.
  • Pulled the coil and checked it with a volt meter (.6 ohm primary, 7,xxx ohms on the secondary, within spec according to my googling).
  • "Batt" connection is good, getting 12.xx volts there with key on, 10-11 volts when cranking.
  • Grounded dist. body to frame w/ jumper.
  • Grounded dist. "GND" terminal to frame w/ jumper (no wire on this normally)
  • Powered dist. direct to battery w/ jumper.
  • Tried cranking without the tach wire hooked up.

So it seems like I don't have any issues with power or the coil. All I did to this distributor, as far as I know, is take the lid off, and plug the "tach" wire into it from the fitech. Now that its all together it won't run.

It seems really hard to believe something died in my distributor during this process -- any guesses on what might be going on??? I am stumped. My next move will be to test w/ that spark tester, and if I'm 100% sure I have no spark, to get a rebuild kit for the HEI I guess... I have no no idea what kind of HEI this is, but the cover looks oldish to me...will any rebuild kit fit it or do I need to figure out what I have first?

Here's a pic of my dist cover showing the "tach" terminal I've hooked up to, and the batt terminal I've tested against:

http://i.imgur.com/iUq5G2I.jpg

Here's my connections (red ignition -> dist batt terminal and fitech blue wire -> dist tach terminal). I have the cover off and the connections made directly for testing...

http://i.imgur.com/hGt8njv.jpg

Thanks all!
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1969 C10 SWB Stepside, 350, TH350, FiTech Go Street Fuel Injection
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