Megasquirt Pre-start checklist

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Jun 11, 2006 | 01:05 AM

#26

rrluthi

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Full Member

Joined: May 2004

Posts: 221

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From: California

It's running now, could have had it a few days ago if I hadn't been so careless. Anyway, I'm going to try to get the timing nailed down perfect and get the idle tuned tomorrow.

Thanks for the help guys.

Jun 11, 2006 | 08:48 AM

#27

muythaibxr

MegaSquirt Mod

Joined: Sep 2004

Posts: 4,721

Likes: 1

From: Maryland

glad to hear it.

Jun 11, 2006 | 10:22 AM

#28

renns

Rotary Enthusiast

Joined: Oct 2001

Posts: 1,022

Likes: 4

From: Ontario, Canada

Quote:

Originally Posted by rrluthi

Oh yeah, I got it figured out! I followed Renns's diagram so religiously that I didn't use the common sense check. He constructed his V3 board to use IAC2B, IAC2A, and IAC1B pinouts in his picture, which correspond to pins 27, 29, and 31. However his wiring diagram uses pins 25, 27, and 29.

Having run a wire from pin 31 to my leading ignitor, and rewiring my pin 27 and 29 wires, and discarding the pin 25 wire, I now have spark! In fact when I tested it, my engine popped and wanted to run! So all I have to do now is set my base timing and finish all my looming and it should run.

Wow, thanks for picking up on that problem, and sorry it caused you some grief! I'll get that jpg fixed up, and re-posted to the thread. If a moderator could delete the old, and replace with the new, it'd be appreciated!

Glad to hear you have spark, sounds like you are ready to run. The thorough work you are doing is paying off!

Jun 12, 2006 | 12:36 AM

#29

rrluthi

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Joined: May 2004

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From: California

Well, I had it running last night and today. I however could not see my leading marks with the timing light. They weren't even showing up, and it was idling very rough. It's got to be a setting in the wheel decoder, but I can't figure out what it is. I'm set to 1,3,7,9 with 60 degree trigger angle. CAS is stabbed on 3rd tooth clockwise from my gap.

I had a fuel leak I had to fix, and by the time I put the upper manifold back on, it wouldn't even run at all, so I have to figure that out.

Jun 12, 2006 | 06:36 AM

#30

renns

Rotary Enthusiast

Joined: Oct 2001

Posts: 1,022

Likes: 4

From: Ontario, Canada

Leave the CAS loose, and as soon as it starts, rotate the CAS to get the timing marks in view. If you can't bring the marks in line, shut down, and re-stab.