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Troble shooting Allison/XR700 Ignition

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K

KSIS

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I have been doing some work on my spit. Put on a new header and rewire the head lights. I went to turn her over and no start, have gas but no spark. I am running the Allison ignition unit. Not sure how the begin trouble shooting the unit. Any and all help would be appreciated.
I have the point set from another distributor that I will throw in to get it running.

Thanks!
 
Don't know the allison unit, but, before you start switching points over etc. etc.

1. make sure everything is connected. I have certainly knocked off wires.

2. make sure that everything is connected properly. again, I have done this - and I have to diagnosis for dummies 'cause I assume it's right and skip over things. (including, is your dizzy 180 deg out or the cap backwards?) - don't ask me how I know about this :smile:

3. figure out where you do and don't have spark.

a) do you have 12 volts coming into the ignition?
b) do you have power coming to the coil?
c) do you have spark coming to the dizzy but not to the plugs?

If you take it in sections. it should help.
 
Found the problem,
I was behind the dash messing with the tach cable and bumped the ignition switch.. You may all now slap .me in the back of the head as I slap my forehead
 
KSIS said:
Found the problem,
I was behind the dash messing with the tach cable and bumped the ignition switch.. You may all now slap .me in the back of the head as I slap my forehead
Click to expand...

only if it's a group slap - we all been there done that - just glad you found it so quickly!
 
KSIS said:
You may all now slap .me in the back of the head as I slap my forehead
Click to expand...
If we do that, might as well stick a compression tester in your ear to see what kinda reading we can get.
 
I tell ya sometimes I just loose my way with this car. I get sound caught up in the task at hand I cant think outside the box. I was working on the exhaust last night and couldnt get things to line up. I was getting aggrevated.
My some come out takes one look at what I was doing and suggested I loosen all of the clamp and reposition the tail pipe.
Wouldnt ya know it, everything slip right into place. I think I'm done for while.
 
I find this thread fascinating because I swear what you are describing has never happened to anyone else on this board - you are the first, amazing.

NOT

:wall: :hammer: :driving: :cheers:
 
KSIS said:
I tell ya sometimes I just loose my way with this car. I get sound caught up in the task at hand I cant think outside the box. I was working on the exhaust last night and couldnt get things to line up. I was getting aggrevated.
My some come out takes one look at what I was doing and suggested I loosen all of the clamp and reposition the tail pipe.
Wouldnt ya know it, everything slip right into place. I think I'm done for while.
Click to expand...

Lucky! I spent 3 days trying to get the exhaust back onto my car and finally got so ticked off that I cut it in half so it would be easier to move around and it still didn't fit. Finally I measured things with a caliper and discovered that the new exhaust manifold has a very slightly smaller ID and the old pipe just wouldn't fit in. what a pain! I still haven't gotten it all back together.
 
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