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07-31-2010, 12:18 AM | #1 | |
AF Newbie
Join Date: Jul 2010
Location: midlothian, Virginia
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85 nissan p/u help!!!!
basically my 85 nissan p/u stalls out when the engine gets hot. I replaced the spark plugs, dist. cap, rotor button, fuel filter, and ran several cleaners through the carburetor and nothing seems to work and it only does it when the engine gets warm. any ideas anyone????
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09-24-2010, 11:01 AM | #2 | |
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Re: 85 nissan p/u help!!!!
check the vacumn source to the choke and vacumn advance on the dizzy...
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12-07-2011, 02:15 AM | #3 | ||
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Zane, How's the check done?
Quote:
Specifically, "How can I do a quick check of the vacuum advance on the distributor, and, where exactly do I find the vacuum source to the choke"? I've got a 2Bl Nikki carb, no manual, and no darn way to get one where I live. Any advice would be greatly appreciated. Best regards, G2L |
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12-07-2011, 04:25 AM | #4 | ||
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Zane - Found One Answer ...
Quote:
The below was useful to me, and hopefully it will be to others. Instructions Things You'll Need Timing light Suggest Edits 1 Open the hood of your car and hook up a timing light to the engine. Connect the red alligator clip to the positive terminal of the battery and the black one to the negative side. Now, hook up the timing light’s inductive pick-up clamp to spark plug wire #1, the closest one to the front of the engine. Make sure cables and wires are not in the way of moving parts. 2 Set the transmission to neutral or park and apply the parking brakes. 3 Disconnect the vacuum hose from the distributor. 4 Start the engine and let it idle. 5 Aim the timing light at the timing mark on the engine while increasing engine RPM to about 3,500. 6 Watch the timing mark closely. If the mark advanced smoothly while increasing engine speed, the distributor centrifugal advance is working properly. Otherwise, parts in the system within the distributor might be worn out or rusted. 7 Increase the engine speed to about 1,500 RPM and aim the timing light at the timing mark on the engine again and watch its location. 8 Reconnect the vacuum hose to the distributor. The timing mark should advance and engine speed should increase. If the advance system did not respond properly to either one of these tests, take the car to an auto shop for inspection |
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12-07-2011, 11:28 AM | #5 | |
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Re: 85 nissan p/u help!!!!
follow the vacumn line from the dizzy dash pot <which is the vacumn advance< to the manifold source.. follow those lines to the carb.. the carb itself has a choke .. follow the choke vacumn to it source..
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12-08-2011, 06:52 AM | #6 | ||
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Hmmm ...
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See my other responses to your other posts, for more. Thanks again, G2L |
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05-08-2013, 05:47 PM | #7 | |
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Re: 85 nissan p/u help!!!!
We are having the exact issue with our 1985 Pickup. We have changed out coils, rotor, spark plugs and wires. We have checked the fuel filter and pump, vacuum hoses... My husband was trying to get it running again and found the BPT valve had completely came apart. It looks like it is the original . Could this be the issue? Thanks in advance!
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