FI assistance, High idle |
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FI assistance, High idle |
watsonrx13 |
Sep 2 2008, 06:15 PM
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#1
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Advanced Member Group: Members Posts: 2,734 Joined: 18-February 03 From: Plant City, FL Member No.: 312 Region Association: South East States |
OK, I have finally gotten my second project car running.... The first time since I've owned the car (purchased 2 1/2 years ago)... (IMG:style_emoticons/default/driving.gif)
Anyway, I've done the following to the '74 2.0l engine: New: Spark plugs and wires Distributor cap Points and condensor Vacuum and fuel hoses Intake runner boots Other: Tested and rebuilt fuel injectors and new seals Timed the engine Adjusted the valves I hooked all vacuum hoses, per AA's diagram. When I started it, it ran at 3000 rpm. I disconnected the AAR and plugged the hoses. I've gotten it down to 1500 rpm, but it was 'hunting'. I soaked the AAR valve overnight and washed out the PCV with carb cleaner. I hooked both back up, but it ran at 3000 rpm again. So my questions are: 1. How do I test the AAR valve to verify it's working? 1a. If I remove it permanently, do I just plug the line to the CSV and wrap the electrical wire (the plastic plug is missing)? 2. I've ordered the TB gasket, do I need to remove the runners before I remove the TB/base? 3. After I remove the TB/base and check for pin holes, anything else to check? 4. Any other suggestions? 4a. BTW, I tried spraying carb cleaner around the TB, injectors, runners, but didn't hear any difference in the engine sound. Also, I researched this subject and found Jack's (championgt1) posting, but there was no resolution, at least in that thread... -- Rob |
watsonrx13 |
Sep 3 2008, 06:18 PM
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#2
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Advanced Member Group: Members Posts: 2,734 Joined: 18-February 03 From: Plant City, FL Member No.: 312 Region Association: South East States |
OK, time for an update....
Jim/Marty, my AAR looks different from your's, but I did hook it up to a battery and noticed that the bottom started getting warm, but the valve didn't move. I've blocked off the top port, turned it upside down and filled with PB blaster and I'll let it soak overnight. If this doesn't work I'll try to get another one.... Jack, I took the plenum off the car, what a PITA, and removed the TB. The plenum looks really good, I even tried the flashlight in the dark, no pin holes. But, since I had the plenum off, I removed the paint around the support tubes and liberally spread jb weld to seal any unseen holes. I'll let it dry overnight, paint it and then when the new TB gasket arrives, I'll reinstall everything... Rich, I purchased an adjustable timing light, set it at 27 and found the TDC mark, also removed the vacuum hose from the distributor. I agree with everyone, this certainly appears to be a vacuum leak, I just need to track it down. At one point during the testing, I had the PRMs down to 1500, but it was hunting, any suggestions? -- Rob |
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