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4 Weeks Ago
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#1 | | Super Moderator
Join Date: Jun 2002 Location: Warsaw, Va.
Posts: 13,060
| Carburetor Problems!???? Here's what I've got;
A 1929 Essex with a 6 cylinder engine. The vacuum tank has been disconnected. It has a electric fuel pump installed inline to the carburator.
It also has a adjustable pressure valve installed right behind the pump. The engine runs very sluggest (probably more than one problem).
I will attach two pictures, the first here showing the pump and the regulator. The problem is that gas is running out of the top of the carburator. I have turned the regulator back to position 1.
Wayne |
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4 Weeks Ago
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#2 | | Super Moderator
Join Date: Jun 2002 Location: Warsaw, Va.
Posts: 13,060
| Re: Carburetor Problems!???? The pictures attached here shows the right side of the engine with the carburetor in question.
The second picture shows the part of the carburetor the gasoline is coming out of.... the top of the float box, I'd assume. I'm wondering if the float seat is bad? I realize that an electric fuel pump can overrun the float seat, but I have turned the regulator down (counterclockwise) to position 1. The gas still runs out, but not as bad.
This is going to sound stupid guys, but I need this car running this weekend for the Vintage Tour, so I'm sure you're asking yourself, "Why did this fool wait so long to fix this?" I'm wondering that too myself, at this point.
Thanks for any help!
Wayne
Last edited by R W Burgess; 4 Weeks Ago at 16:16.
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4 Weeks Ago
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#3 | | Super Moderator
Join Date: Jun 2002 Location: Warsaw, Va.
Posts: 13,060
| Re: Carburetor Problems!???? Wife just asked why that "red looking hose" looked twisted???? (Generator attachment device, whatever you call it. Yeah, I know it needs replacement>)
Hey woman, one problem cure at a time.
Wayne |
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4 Weeks Ago
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#4 | | Senior Member
Join Date: Feb 2008 Location: Virginia
Posts: 411
| Re: Carburetor Problems!???? Wayne,
Have you actually measured the fuel pressure? Do you have any idea what "1" on the regulator represents? Even a modern carb needs only about 7 psi. Could the float have a pinhole leak and is therefore not "floating?" |
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4 Weeks Ago
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#5 | | Senior Member
Join Date: May 2005 Location: South Australia
Posts: 159
| Re: Carburetor Problems!???? You should be able to adjust the level of the float in the carb to stop this problem; ie by lowering the level at which the float causes the needle and seat to shut off incoming fuel.
Of course this is dependent on other factors as mentioned :
1. the ability of the needle to hold closed against fuel pump pressure
2. the serviceability of needle/seat assembly
3. the float condition ( not holed ) |
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4 Weeks Ago
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#6 | | Senior Member
Join Date: Nov 2004 Location: MO
Posts: 698
| Re: Carburetor Problems!???? Blue Sky is on the right track.
You might be very surprised at a reading of a pressure gauge inserted between the regulator and the carburetor. I know I was when we were testing these dial type regulators.
Jon.
__________________ Good carburetion is fuelish hot air!
Owner - The Carburetor Shop LLC (of Missouri)
The most expensive carburetor you will ever buy....is the wrong one for the application that you attempt to modify!
If you truly believe "one size fits all"; try walking a mile in your spouse's shoes! |
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4 Weeks Ago
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#7 | | Super Moderator
Join Date: Jun 2002 Location: Warsaw, Va.
Posts: 13,060
| Re: Carburetor Problems!???? Bill, I have not checked the actual pressure, so the answer is, no!
I also talked with a few friends tonight about this, plus, I've got another motor head coming by tomorrow morning. I think I will restart the car tomorrow, then cut the regulater all the way off, to see if it is operating normally(stopping the fuel flow).
Then, we'll probably take the carburetor apart and check the needle/seat, plus the jets to make sure there is no varnish problem.
I'll let you know how this turns out.
Wayne |
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4 Weeks Ago
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#8 | | Super Moderator
Join Date: Jun 2002 Location: Warsaw, Va.
Posts: 13,060
| Re: Carburetor Problems!???? On another note, the Hudson/Essex forum suggested that I call Dave Kostansek. 7902 Route 7 of Williamsfield, Ohio 44093. 440-293-4079 for ignition parts.
I caught up with him today and he shipped me parts today. A very knowledgeable gentleman. In speaking with him and relating my power problems, he indicated that the engine could have the timing chain off one tooth, which would require me to take the front timing cover off to reset it. I certainly hope this is not the case. This engine is very sluggish.
More tomorrow.
Wayne |
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4 Weeks Ago
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#9 | | Senior Member
Join Date: Jun 2006 Location: Wilmington, NC
Posts: 1,679
| Re: Carburetor Problems!???? Wayne, you better get that thing fixed fast!
Now, I am just an old Model A Ford guy so what do I know.... I would suggest that cleaning out everything in the carburetor and testing the float for a leak might be in order. Do you know how to test the carb float for a leak? If not, call or PM me and I will tell you what I know about carburetors.
Also, While I have no experience with vaccum tanks, if you do a little bit of searching here on the forum, there are some recent good explanations about cleaning a vaccum tank and getting it working like it did originally. If you get the vaccum tank working correctly you will eliminate the potential of overpressure from your aftermarket fuel pump.
Good luck friend!
__________________ Matthew C. Hinson
1929 Ford Model A Phaeton, 1976 Ford Country Squire, 1984 Buick Riviera
AACA, MAFCA, MARC |
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4 Weeks Ago
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#10 | | Senior Member
Join Date: Dec 1999 Location: Fairfield (Cincinnati), OH
Posts: 8,710
| Re: Carburetor Problems!???? Quote:
Originally Posted by MCHinson I would suggest that cleaning out everything in the carburetor and testing the float for a leak might be in order. | A bad float was my first thought as well.
I don't know what brand fuel pump you have, but if you look at the paperwork that came with it (or on the manufacturer's web site) you can probably find a pressure spec for it's settings. Unless you bought a pump intended for a fuel injected car (an unlikely 6V find), I can't imagine that it's lowest setting would be too much for a functioning carb of almost any type.
__________________ "Middle age is when your broad mind and narrow waist begin to change places." |
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