Cursed Bucking!, Fuel injection issue |
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Cursed Bucking!, Fuel injection issue |
Gcotton92203 |
Mar 11 2015, 03:46 PM
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#1
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Newbie Group: Members Posts: 21 Joined: 14-February 14 From: Bermuda Dunes Ca. Member No.: 17,000 Region Association: Southern California |
Hey, here's a stupid question. Anyone know where I can get a "GOOD" 1973 2.0 throttle positioner. I've developed that cursed bucking just off idle during slow acceleration but the rest of the power band is fine. I've cleaned up the circuit board as best I can and a new board may fix my problem but I'm not sure the contacts are all that great either so I'd just as soon replace the whole relay. Yeah, yeah, I know. put a carb on it. Just trying to stay as original as possible.
Gary 760 702-7251 gary@musicmagic.biz |
dknechtly |
Mar 13 2015, 01:50 PM
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#2
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Yellow 914 Group: Members Posts: 68 Joined: 11-April 03 From: Wylie, TX Member No.: 560 Region Association: None |
Hope you keep that FI in it. There are so many things to check. Do you have points? As they get closer is will run bad especially when first starting up. Also, check the resistance of the FI points. It should be as low as possible. Don't use emory cloth! Just a piece of note card or a jeweler's cloth. If it runs too lean, all kind of wierd things happen. Check that the mechanical advance is all nice and limber and no springs are broken.
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Gcotton92203 |
Mar 13 2015, 02:18 PM
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#3
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Newbie Group: Members Posts: 21 Joined: 14-February 14 From: Bermuda Dunes Ca. Member No.: 17,000 Region Association: Southern California |
Hope you keep that FI in it. There are so many things to check. Do you have points? As they get closer is will run bad especially when first starting up. Also, check the resistance of the FI points. It should be as low as possible. Don't use emory cloth! Just a piece of note card or a jeweler's cloth. If it runs too lean, all kind of wierd things happen. Check that the mechanical advance is all nice and limber and no springs are broken. Wow! lots of good info. I just converted to a Pertronix but it still did the same bucking just off idle. I'm pretty sure it's a worn circuit board. I just hoped I could find a new complete replacement but I guess people in Hell want ice water too. I also believe I'll be facing the vapor lock issue as I sometimes hear gurgling in the gas tank when starting warm after several minutes rest. Other than that I have no other issues with the way it runs and intend to keep it injected as long as humanly possible |
marksteinhilber |
Mar 13 2015, 02:53 PM
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#4
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Member Group: Members Posts: 229 Joined: 18-October 12 From: Foothill Ranch, CA 92610 Member No.: 15,057 Region Association: Southern California |
Hope you keep that FI in it. There are so many things to check. Do you have points? As they get closer is will run bad especially when first starting up. Also, check the resistance of the FI points. It should be as low as possible. Don't use emory cloth! Just a piece of note card or a jeweler's cloth. If it runs too lean, all kind of wierd things happen. Check that the mechanical advance is all nice and limber and no springs are broken. Wow! lots of good info. I just converted to a Pertronix but it still did the same bucking just off idle. I'm pretty sure it's a worn circuit board. I just hoped I could find a new complete replacement but I guess people in Hell want ice water too. I also believe I'll be facing the vapor lock issue as I sometimes hear gurgling in the gas tank when starting warm after several minutes rest. Other than that I have no other issues with the way it runs and intend to keep it injected as long as humanly possible Try the suggested repair where you clean the contacts and /or move the finger to run on a new groove! |
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