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Discussion Topic:
Continuing '36 fuel pump problem!
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Flatbob |
11-03-2011 @ 4:36 PM
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Member
Posts: 437
Joined: Oct 2009
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Super, that's the same way I install the pump also.
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Flatbob |
11-03-2011 @ 4:12 PM
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Member
Posts: 437
Joined: Oct 2009
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TomO, vacuum gauge is not the problem, will contact Kenct and ship pumps to him.
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TomO |
11-03-2011 @ 2:32 PM
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Senior
Posts: 7256
Joined: Oct 2009
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I think your problem wit no reading on the vacuum gauge is either a loose connection or a bad gauge. Mount the pump in a vise with soft pads and then operate it while holding your thumb over the input hole. You should feel suction. If not, do the same to the output, where you should feel pressure. Ken CT is a good one to send your pump to.
Tom
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Flatbob |
11-03-2011 @ 2:15 PM
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Member
Posts: 437
Joined: Oct 2009
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TomO, assembled the fuel pump as you described but am still unable to get either of the pumps to indicate any suction on vacuum gauge whether installed on car or actuated by hand. Obviously, I'm doing something wrong but can't figure it out. May have to send the pumps off to one of gurus and let them correct the problem.
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supereal |
11-03-2011 @ 12:16 PM
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Senior
Posts: 6819
Joined: Oct 2009
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Be sure that the cup on the pump arm is, in fact, on the rod. It is easy to miss it. We like to install the pump on the stand, then set the whole assembly onto the rod. Otherwise, it is possible to cock the cup so it doesn't seat properly.
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TomO |
11-03-2011 @ 7:59 AM
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Senior
Posts: 7256
Joined: Oct 2009
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You should see some change in vacuum readings when you operate the arm. Check your connections to the pump. I use a short piece of steel gas line with the correct fitting in the fuel pump and slip the vacuum gauge hose over the line. If you still have no vacuum, check the valve installation and the top cover gasket for proper installation. Most pumps require that the sequence from bottom to top is screen, gasket and top. The top should be tightened just enough to compress the gasket. The correct sequence for tightening the body screws is: Install the screws so that the lock washers just contact the body of the pump, operate the arm several times to seat the diaphragm. Let the diaphragm relax and then tighten the screws in a cross pattern.
Tom
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Flatbob |
11-02-2011 @ 6:19 PM
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Member
Posts: 437
Joined: Oct 2009
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Have run new fuel line (6') directly from pump to gas can and am still unable to get pump to work. Will try another fuel pump tomorrow.
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Flatbob |
11-02-2011 @ 3:27 PM
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Member
Posts: 437
Joined: Oct 2009
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I have all new "fresh" parts installed in fuel pump; THEN& NOW provided detailed instructions on every aspect of the rebuild.
This message was edited by Flatbob on 11-2-11 @ 6:17 PM
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51f1 |
11-02-2011 @ 11:04 AM
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Senior
Posts: 573
Joined: Oct 2009
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Make sure the pump valves are installed correctly and make sure the cork fuel bowl gasket, if it is cork, has not dried out. It should be flexible in order to seal.
Richard
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Flatbob |
11-02-2011 @ 9:44 AM
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Member
Posts: 437
Joined: Oct 2009
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TomO, did vacuum check as you described after I rebuilt the pump and gauge showed no response. Really didn't expect that result and didn't know how to interpret it; I would think no matter how bad the pump is, especially after being rebuilt I would get some indication of vacuum on the gauge. Am going to recheck all connections from tank to carb..
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