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Discussion Topic:
Fuel pump question
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jeffsang |
05-13-2012 @ 5:36 PM
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Member
Posts: 20
Joined: Sep 2011
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I'm a new 48 Coupe owner, car has been mostly hard to start since purchased. Always very hard to start when hot, starts ok sometimes when cold. Just drained fuel tank and replaced entire fuel line and fittings with a kit from Mac's and rubber flex hose. Tank has been replaced recently and is clean. Tried starting car today and no fuel is coming up to the glass bowl after a lot of cranking. Pump looks very clean, however it has no "AC" markings. Maybe an aftermarket, my understanding is these cannot be rebuilt. Where would the "AC" markings be if its an original. I just helped a fellow club member install a rebuilt motor in his 46 after sitting 6 months and fuel bowl was filling up within 10 seconds. Where can I get a good fuel pump from that is rebuildable? Jeff
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oldford2 |
05-13-2012 @ 5:55 PM
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Member
Posts: 275
Joined: Oct 2009
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Check out this thread on the Fordbarn about fuel pumps. Contact KenCT for a rebuilt/rebuildable pump. Copy and paste this in your browser. http://fordbarn.com/forum/showthread.php?t=69544 John
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Old Henry |
05-13-2012 @ 10:51 PM
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Senior
Posts: 738
Joined: Apr 2010
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I got this one from C&G 5 years ago and it still works fine. https://secure435.hostgator.com/~dlvry40/ufolder/CgCat.php?searchtextdesc=59A-9350&catalog_choice=All+catalogs&year_choice=48&btAddTpCart.x=15&btAddTpCart.y=6 Except, of course, when it's vapor locked. For that I added a backup low pressure electric inline pump back by the fuel tank that solves that problem when needed. Photo of my backup installation attached. Old Henry (The older I get, the better old looks.)
This message was edited by Old Henry on 5-13-12 @ 10:52 PM
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jeffsang |
05-14-2012 @ 4:29 AM
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Member
Posts: 20
Joined: Sep 2011
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Are the pumps rebuildable that come from C&G, Mac's and Carpenter's?
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ken ct. |
05-14-2012 @ 5:09 AM
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Senior
Posts: 1513
Joined: Jan 2010
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I have fresh "AC" rebuilds @ $70 + $20 core chg +$10 shipping.Also contain a replaceable paper filter in them. ken ct.10203-260-5945 cell #
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ken ct. |
05-14-2012 @ 5:11 AM
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Senior
Posts: 1513
Joined: Jan 2010
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I have fresh "AC" rebuilds @ $70 + $20 core chg +$10 shipping.Also contain a replaceable paper filter in them. ken ct.10203-260-5945 cell #
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TomO |
05-14-2012 @ 7:18 AM
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Senior
Posts: 7263
Joined: Oct 2009
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Connect a vacuum gauge to the input of your fuel pump and crank the engine, the fuel pump should develop 10 inches of vacuum an it should take1 minute or more to fall to 0 when you stop cranking. If your pump meets these specs, it is in good condition. If it doesn't, then I would check the gasket in the sediment bowl, it should be a rubberized cork and not dried out. If the pump is good, you probably have a vacuum leak in the fuel line connections. Disconnect the line from the tank and from the flex line. Plug the tank opening to prevent fumes or gas leaking. Flush the line with alcohol and the solder the ferrules at each end and then re-install the line. Hard starting when warm can be caused by a weak spark or too much or too little fuel. Check your spark at idle with the engine at normal operating temperature by holding a plug wire near a head nut. It should be at least 1/2" long and blue in color. If not, check out the ignition system. Check for fuel in the carburetor by looking down the barrel of the carburetor and operating the accelerator pedal. You should see 2 streams of gas come from the accelerator nozzle. If you have the streams and spark, then your engine may be flooded due to a leaking power valve or an incorrect float setting.
Tom
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37 Coupe |
05-14-2012 @ 7:47 AM
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Member
Posts: 362
Joined: Oct 2009
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Just go to Napa and buy the M825 fuel pump,it is USA made probably by Carter or Airtex,the box says Federal Mogul. I have been using a new one for almost three years now with none of the problems I had before from rebuilt ones from "fuel pump gurus" who claimed they were providing me with an ethanol proof pump. I don't know or care of the pump is rebuildable because I don't ever want another "rebuilt pump" that requires a ride home on the roll back. I believe I paid less for the new one the rebuilt one with "core charge".This has been my expierience with actual miles driven,not from someone whoes car just sits in garage.
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supereal |
05-14-2012 @ 10:05 AM
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Senior
Posts: 6819
Joined: Oct 2009
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I've posted this before, but this problem is identical to one I had with my '47. After replacing my fuel pump due to starvation of the carb, the problem persisted to the point where my electric booster pump couldn't get me home. The only part of the system that wasn't renewed during restoration was the line between the tank and the firewall. When I couldn't blow compressed air thru it, I took it out, straightened it, and tried to force a wire thru it, with no luck. Finally, I got rust and dirt out. The line had gradually clogged until no more fuel got thru. It is only a 1/4" line, just big enough to do the job, and when it is clogged, it is easy to blame the fuel pump, "vapor lock", etc. When the copper coating in the steel line is breached, it doesn't take long for rust to form. You can have pressure in the line, but no delivery. Before you spend time and money on fuel pumps, consider a $20 replacement fuel line. It is likely you will cure the problem and be amazed at the improvement. C&G sells the line, complete with fittings.
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jeffsang |
05-14-2012 @ 12:26 PM
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Member
Posts: 20
Joined: Sep 2011
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Like I said in my 1st post, I just replaced the entire fuel line from tank to fuel pump including the rubber flex hose with parts from Mac's and Carpenters. Now I cannot pull any fuel up to the pump. The car was mostly hard to start before especially when hot. Will try to do a vaccum test. Just weighing my options for a replacement pump.
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