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September 2018
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Kirkham Motorsports

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  • 4 Post By Bill D
  • 1 Post By 1795
  • 1 Post By Bill D
  • 2 Post By jolsen42
  • 1 Post By Bill D
  • 1 Post By spdbrake

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Old 09-11-2018, 08:08 PM
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Default It runs. Oh lordy it runs!

Started the cobra today. Took a few minutes for gas to get to the Weber’s. Had two small gas leaks. One on the intake manifold and the other with the fuel line under the car. Fixed.

Car ran rough. After it cooled down discovered all 4 plugs on the driver side very loose. Likely from being removed by the header fabricator. All tight, plug wiring verified. Still need to set timing. Saturday.

Oil pressure solid at 50psi

Engine continued to run after turning key off. Will cal wiring harness manufacturer tomorrow and discuss problem.

Friend coming over Saturday to help set timing and synch carbs

Not too shabby for the initial start.
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Old 09-11-2018, 09:22 PM
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Yep, not too shabby. Congrats Bill. Massive milestone!

Cheers,
Glen
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Old 09-12-2018, 03:22 AM
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Bill,

So happy for you! It has been a long road, but you stuck it through and have reaped your reward. Cannot wait to hear it roar down the road.

Congratulations!

Jim
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Old 09-12-2018, 05:12 AM
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Now it won't be long until Bill can start having fun after all of the work he has put in. That is one of the better built Cobras I have seen.

Ron
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Old 09-12-2018, 05:50 AM
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Awesome news Bill. Congratulations!
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Old 09-12-2018, 06:38 AM
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Some good news to report. I called the Painless Tech-Support line this morning told them my situation. They said it’s a common problem when you don’t have a charge light in the exciter circuit. They suggested that I buy a high current diode, gave me the part number and where I can get it, and to install it in the 914 wire circuit. This should fix my problem
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Old 09-12-2018, 06:52 AM
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Proud of you Bill! Now that light at the end of the tunnel, is not a train.

John O
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Old 09-13-2018, 04:33 AM
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Wooo Hoooo! Congratulations!
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Old 09-13-2018, 11:01 AM
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Congrats, Bill!
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Old 09-16-2018, 12:03 PM
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I fixed the issue with the plugs. NGK recommended a different plug with a non extended tip. This fixed my interference problem between the piston dome and spark plug electrode. My timing was also way off: 30 deg initial. Used a timing light and set it at 13 BTDC. Then went through the Weber procedure to set the idle mixture screws. With everything done, I fired her up and adjusted idle. Still need to synchronize the Caribs. Here’s a video

D6FD64D0 D1F2 4BA6 BE04 C6B41C6D5034 - Sendvid
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Old 09-16-2018, 12:18 PM
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Excellent! Congrats she sounds good.
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Old 09-16-2018, 12:21 PM
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I still need to add the feedback diode into the exciter circuit.

UPDATE: diode added. Car now shuts down as it should

Last edited by Bill D; 09-16-2018 at 01:07 PM..
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Old 09-16-2018, 04:37 PM
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Sounds great Bill. You looked pretty happy in that video. Nice job.

Jim
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Old 09-16-2018, 04:46 PM
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My excitement was short lived. It quit running. Won’t start. I’ve given up, and covered the car. I wish someone would just buy it and take it away
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Old 09-16-2018, 05:43 PM
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Don’t give up! Sounded like it was running good. Probably just a carb issue.
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