C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
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Old Apr 30, 2014 | 08:00 PM
  #21  
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hmm ..bent rod??i use the thumb over the hole trick to get compression stroke.
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Old Apr 30, 2014 | 08:05 PM
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how could I check for a bent rod w/o taking of intake
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Old Apr 30, 2014 | 08:31 PM
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Taking off the intake would not tell you anything. The oil pan would need to be removed...and possibly the cylinder head of the rod that looks suspect...such as cylinder #7...where the gas came out of.

When I get engine like yours that is giving me a fit. I STOP and VERIFY that the
notch on the harmonic balancer is CORRECT by using a piston stop tool I made and manually rotate the engine until the piston stops on my piston stop tool...and then put a dot of paint on the balancer where the "0" mark is on the indicator tab...then rotate the engine in the other direction...and put a dot of paint again on the balancer where the '0" mark is on the tab when the piston stops on the tool again. The distance between the two dots is number 1 TDC...BECAUSE I had my tool in cylinder 1.

If you have spark...you should be able to get this to run...especially if the valves were not messed with and the engine ran fine before.

In very rare cases...I have had the red power wire that goes to the distributor cap was bad. In regards the the number of strands in the wire were broken...and even though it showed to have 12 volts going to it...the wire could not carry the AMPS needed.

Take two headlights and wire them together and use the red wire going to the distributor to power up these headlights. If the headlights can burn well...then the wire is fine...if you can not get the headlights to burn...you may ave a problem in the red wire.

DUB
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Old Apr 30, 2014 | 08:34 PM
  #24  
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wow ,very good info, thanks DUB after fooling with it some I think its back out of time so I working on that. Stay tuned!!
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Old Apr 30, 2014 | 08:52 PM
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ok this is a first , Got it turning over smoother, HOWEVER I went to palm the distributor and got shocked????wt?? Ever had this happen?
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Old Apr 30, 2014 | 09:26 PM
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ok guys here we go, I have no spark going to several of the plugs. #1 is sparking but #5,#7,#2,#4,#6 & # 8.. Module???
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Old Apr 30, 2014 | 10:54 PM
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Pull your hair out or pull $50 bucks out your pocket and change the module..,,no brainer in my opinion....LOL
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Old May 1, 2014 | 08:51 AM
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Yeah the spark is not strong coming off the cap to the wire.I am thinking the module. I going to get one shortly . Any other thoughts today guys?
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Old May 1, 2014 | 09:07 AM
  #29  
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Originally Posted by PumpkinKing
Yeah the spark is not strong coming off the cap to the wire.I am thinking the module. I going to get one shortly . Any other thoughts today guys?
Start with the module. Why guess? They do go.

Jim
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Old May 1, 2014 | 12:11 PM
  #30  
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Module not bad. Had it tested at autozone and advance. how can I test the stator ,Would (could) that cause irratic spark,weak spark,no spark?
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Old May 1, 2014 | 02:20 PM
  #31  
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what brand cap and rotor did you buy? did you put the little spring that goes under the coil back in?
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Old May 1, 2014 | 02:24 PM
  #32  
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I put the old back on , yes I did put spring in . I m wondering if Its because Im not getting enough voltage
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Old May 1, 2014 | 02:40 PM
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Originally Posted by PumpkinKing
I put the old back on , yes I did put spring in . I m wondering if Its because Im not getting enough voltage
Same problem with the old parts?
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Old May 1, 2014 | 03:05 PM
  #34  
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Yes,
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Old May 1, 2014 | 03:34 PM
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What shape is the part the module plugs into? Its the piece that has the radio capacitor on it.

seen in the picture in the following link

http://www.autopartswarehouse.com/sk...or/ACD221.html

And the other side going to the pickup coil? How do all the wires look?

Last edited by jdp6000; May 1, 2014 at 03:41 PM.
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Old May 1, 2014 | 03:44 PM
  #36  
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This video may help. Could be to do with your pickup coil

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Old May 1, 2014 | 04:04 PM
  #37  
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Originally Posted by jdp6000
What shape is the part the module plugs into? Its the piece that has the radio capacitor on it.

seen in the picture in the following link

http://www.autopartswarehouse.com/sk...or/ACD221.html

And the other side going to the pickup coil? How do all the wires look?
Performance Distributors sells both sides of wiring harnesses for the ignition module and an ignition module for about $100. ~$50 for the module, $30 for the harness to the ecm, $20 for the harness to the coil.
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Old May 1, 2014 | 04:36 PM
  #38  
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Originally Posted by Larry82
Performance Distributors sells both sides of wiring harnesses for the ignition module and an ignition module for about $100. ~$50 for the module, $30 for the harness to the ecm, $20 for the harness to the coil.
Ya I saw that on Willcox. They sell the whole thing....pretty cheap too.
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Old May 1, 2014 | 04:48 PM
  #39  
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How bout this one....I put the old wires and cap back on..right>...and ot freakin cranked!!!!!!
Now i am trying to get it to idle by itself. wt????Thanks for all the help and info
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Old May 1, 2014 | 05:23 PM
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Originally Posted by PumpkinKing
How bout this one....I put the old wires and cap back on..right>...and ot freakin cranked!!!!!!
Now i am trying to get it to idle by itself. wt????Thanks for all the help and info
Did you buy the wrong cap and wires or did you put it on **** eyed?
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