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Tech Talk => Engine Mechanical / Electrical => Topic started by: JB1314 on July 05, 2016, 11:34:45 AM

Title: 460 ford fuel pump clay smith or rebuild
Post by: JB1314 on July 05, 2016, 11:34:45 AM
Fuel pump burned out on me. The vent tube melted causing the pump to fail. After some research over the weekend it looks like this carter 0-2208 is made from unobtanium. I did find a rebuild kit that I ordered this morning. Just kicking around options and I want to stay mechanical. Is the clay smith worth the price and plumbing in a regulator? Pro's con's etc...

Also the vent never ran to the arrestor and the arrestor with the barb is only available in 4" and won't fit under the hatch. Thinking about getting creative with some fittings on the 3" to make it work.

Boat is a 79 Nordic with a closed hatch. Thanks for the input!


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Title: Re: 460 ford fuel pump clay smith or rebuild
Post by: GT Jets on July 05, 2016, 12:00:07 PM
My opinion is that the Carter is one of the best mechanical pumps around. The Clay Smith is very similar in design.

As for the vent tube,  it does not have to go to the arrestor. , what Carburetor do you have?
Title: Re: 460 ford fuel pump clay smith or rebuild
Post by: JB1314 on July 05, 2016, 12:11:20 PM
Thanks GT. It was just laying on the intake. I'm not quite sure where it was supposed to go. That's what I read online. I have a Holley 750. Is it supposed to go to the carb?


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Title: Re: 460 ford fuel pump clay smith or rebuild
Post by: GT Jets on July 05, 2016, 12:22:59 PM
Thanks GT. It was just laying on the intake. I'm not quite sure where it was supposed to go. That's what I read online. I have a Holley 750. Is it supposed to go to the carb?


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According to the USCG rule,  it states the vent tubing must be routed to a point where it is put into the carburetor and not be exposed to air outside the flame arrestor.

Meaning it should go either into the float bowl, overflowing the bowls and kill the engine in the event of a pump failure,  or directly into the flame arrestor down the throat of the carburetor, also killing the engine in the case of a failure.

Some carburetors have a fitting into the bowl for this line (we have a Carter AFB on one boat with one and mine has an 800 cfm Quadrajet.

Holley marine carburetors are a little hit and miss.

Hope this helps.
Title: Re: 460 ford fuel pump clay smith or rebuild
Post by: JB1314 on July 05, 2016, 12:49:16 PM
It does! I learn something new everyday. I don't this carb is marine or has the barb. I'll look closer. The Holley 830 does but it needs a major overhaul. Might be time to send that into the shop.


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Title: Re: 460 ford fuel pump clay smith or rebuild
Post by: JB1314 on July 05, 2016, 07:28:48 PM
Is this where the vent hose should go to?


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Title: Re: 460 ford fuel pump clay smith or rebuild
Post by: GT Jets on July 05, 2016, 10:11:28 PM
Is this where the vent hose should go to?


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Nope.

That's port vacuum.
Title: Re: 460 ford fuel pump clay smith or rebuild
Post by: JB1314 on July 06, 2016, 06:57:18 PM
Doh! What about this one? You can see the nipple with the cover on it on the base of the carb


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Title: Re: 460 ford fuel pump clay smith or rebuild
Post by: GT Jets on July 06, 2016, 07:27:47 PM
Doh! What about this one? You can see the nipple with the cover on it on the base of the carb


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Nope, it will be above the fuel level in the bowls.

GT
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