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Single bbl carb replacement |
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mramc 
AMC Addicted 
Joined: Jul/12/2007 Location: United States Status: Offline Points: 3223 |
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 Posted: Jan/07/2022 at 4:32pm |
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Sounds to me like the float might be bad. If it is a brass float gas tends to eat threw them and the sink and keep adding fuel. The later type fuel floats tend to get fuel soaked and sink too. So, I might want to check that. I had it happen on my 1975 Pacer I had . I've got a brass gas tank float from my 69 Javelin from 50 year in the gas tank that gas ate threw. It does happen. LRDaum
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LRDaum
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nickleone
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Joined: Oct/04/2008 Location: westminster co Status: Offline Points: 1446 |
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Posted: Jan/07/2022 at 6:52pm |
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Lets back up. What fuel pressure is your pump running?
Nick
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nick
401 71 Gremlin pro rally car sold 390 V8 SX/4 pro rally car sold 1962 Classic SW T5 4 wheel disc brakes |
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Montanapacer
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Joined: Dec/07/2021 Location: Great Falls MT Status: Offline Points: 16 |
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Posted: Jan/17/2022 at 1:21pm |
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FYI….tested the 2nd fuel pump and The pressure was 1 pound less than the new Napa pump I took off. Threw the old float valve and spring assembly back into the carb and readjusted the float level. Reinstalled every thing and fired it up. NO CHANGE….fuel still overflowed from the float bowl.
A couple of folks have mentioned fuel pressure level numbers of 3psi and they are right. I installed the adjustable 1 to 4 psi inline fuel regulator and it solved the problems. Thanks for the info guys. Rick.
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Montanapacer
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Joined: Dec/07/2021 Location: Great Falls MT Status: Offline Points: 16 |
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Posted: Jan/17/2022 at 1:23pm |
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Re….the post about replacing the float. Thanks Btw…..inline fuel pressure regulator fixed it for now
Edited by Montanapacer - Jan/17/2022 at 1:27pm |
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Montanapacer
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Joined: Dec/07/2021 Location: Great Falls MT Status: Offline Points: 16 |
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Posted: Jan/17/2022 at 1:24pm |
5psi
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Montanapacer
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Joined: Dec/07/2021 Location: Great Falls MT Status: Offline Points: 16 |
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Posted: Jan/17/2022 at 1:32pm |
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Thanks, this is what I was going to do, but I took a guess and because the parts place had one in stock I put a in line fuel pressure regulator in and it is working now.
Appreciate your help. Thanks Rick.
QUOTE=mitchito]I already posted this in your introductory post but here again. https://www.ebay.com/itm/203528475201?chn=ps&_trkparms=ispr%3D1&amdata=enc%3A1D7TrmrYRSjylBpP_aSgJaA21&norover=1&mkevt=1&mkrid=711-117182-37290-0&mkcid=2&itemid=203528475201&targetid=1262843335089&device=c&mktype=&googleloc=9004369&poi=&campaignid=15275224983&mkgroupid=131097072938&rlsatarget=pla-1262843335089&abcId=9300697&merchantid=6296724&gclid=Cj0KCQiAw9qOBhC-ARIsAG-rdn581lYhpJUmni-wQ5rDxkhhxhiJ38So8ZI4uHFVHcX_jcNQWWJdGWYaAvIKEALw_wcB  The throttle linkage is different but if you use your base plate, the silver colored part at the bottom in the photo, you will be fine. |
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tomj
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Joined: Jan/27/2010 Location: earth Status: Offline Points: 7555 |
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Posted: Jan/18/2022 at 8:16pm |
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Here's how I made an adapter for the YFA clones to AMC twist throttles....
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1960 Rambler Super two-door wagon, OHV auto
1961 Roadster American, 195.6 OHV, T5 http://www.ramblerLore.com |
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Montanapacer
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Joined: Dec/07/2021 Location: Great Falls MT Status: Offline Points: 16 |
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Posted: Jan/18/2022 at 11:07pm |
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Thanks😎
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farna
Supporter of TheAMCForum 
Moderator Lost Dealership Project Joined: Jul/08/2007 Location: South Carolina Status: Offline Points: 19692 |
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Posted: Jan/19/2022 at 7:07am |
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Glad you got it working!
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Frank Swygert
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tomj
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Joined: Jan/27/2010 Location: earth Status: Offline Points: 7555 |
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Posted: Jan/19/2022 at 10:46pm |
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I would not re-use the old carb's throttle base. The throttle shaft and the bore it rides in is a major source of wear. They eventually get loose, leak a lot of air and screw up idle and smog.
But if it's tight it would be fine of course. I'd inspect it closely. COmpare to the new one.
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1960 Rambler Super two-door wagon, OHV auto
1961 Roadster American, 195.6 OHV, T5 http://www.ramblerLore.com |
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nickleone wrote: