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Old 07-30-2014, 01:47 PM   #1
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1991 35' Airstream 350
Martinez , California
Join Date: Jul 2012
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Classic 350 GM Chassis 454 fuel pump

I need to replace the fuel pump. Any help out there? Are there two? one in tank and one chassis/frame mounted?

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Old 07-30-2014, 02:21 PM   #2
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1978 31' Sovereign
Texas Airstream Harbor , Zavalla, in the Deep East Texas Piney Woods on Lake Sam Rayburn
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On an '87 345 there were two. One mounted between the tank and the air volume tank, and the other on the engine.

There was also a large filter/regulator just forward of the entrance door mounted on the frame.

Be aware there may be dry rot in the rubber lines, this would cause air to be pulled into the pump displacing the gas. Had a large problem with the Onan generator because of dry rot in the genny suction line.

Do several searches asking your question in different manners. Many GM chassis questions were discussed in the early to mid 2000's. All of the answers to questions are as good now as they were then.

"Suck it up, spend the bucks, do it right the first time."

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