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  #1  
Old 04-16-2018, 07:48 PM
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Been a long time since I messed with it, but I think the aviation Form-a-gasket was the only one that was fuel proof. Unless you used that particular sealer, the sealer probably failed and caused the leak, not excessive pressure. If it was excessive pressure there would be fuel spraying everywhere.
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  #2  
Old 04-17-2018, 08:46 AM
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Thanks, but since I had a spare fuel distributor from a known good 450SLC I just swapped it, and will worry about the FD later.

I really don't think the fault is the k-jet. I'm starting to think that the only reason it has started is because the fuel pump is on during start. And doesn't stay on in "Run" So I'm gonna start by looking for the fuse and go from there.

Not sure about the vacuum going to the warmup regulator. And swapping them had no effect. So I'm confused, 1976 hooked up one way, 1979 hooked up the other possible way. Now, the 79 didn't really run all to well, so maybe I should put it back the way I found it, something my parents always told me to do. Anyone know which way it's supposed to be hooked up?

The attached schematic. When the switch is in Start position, the relay labeled A/C starter relay is energized. When this happens the fuel pump is getting 12v through the A/C starter relay (which I believe also disconnects the A/C compressor) But when the ignition switch is in "Run" position, if the fuse is blown, the car will start and stall after consuming the fuel from the cold start valve.
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CIS K-Jet Help needed-startupschematic450slcapture.png  
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  #3  
Old 04-17-2018, 09:03 AM
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Quote:
Originally Posted by mespe View Post
I'm starting to think that the only reason it has started is because the fuel pump is on during start. And doesn't stay on in "Run" So I'm gonna start by looking for the fuse and go from there.
See post #3, again. Unplug the safety switch.
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Old 04-17-2018, 10:11 PM
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It's been unplugged. Someone messed with the wires and did a bit of sloppy splicing.

I decided to wait a day because of the cold weather and snow. I am working in a garage, but I didn't want to go out in the miserable weather.
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Old 04-19-2018, 05:38 PM
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Digging further I discovered that the brown/white wire going to the Fuel Pump relay got fried and the insulation melted off. I couldn't figure out why the brown/white wire at the baffle switch was grounded all the time.

So For a test I cut the brown/white wire by the fuel pump relay, and tried the car.

Same thing, start, runs a few seconds and dies.
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Old 05-08-2018, 10:57 AM
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Since the FD works on the other car, you can pretty well rule it out. I'd be looking at fuel pressure at this point to find out what's going on. Just because the pump is running doesn't mean it's any good!
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