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Old 01-27-2013, 11:41 AM   #1
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Fuel pump selection

Good morning. Just registered and hoping to get some advice and suggestions. Need to replace fuel pump on 1997 Georgie Boy. Have drained old gas. Assume I need to lower tank ( 75 gallon ) unless the FP can be replaced w/o lowering ? Need to make sure I purchase the correct replacement pump. Suggestions where ? On e-bay ? Ford chassis F53. 7.5 liter engine / 460 cc. Is this a Ford Super Duty ? Thank you.

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Old 01-27-2013, 02:36 PM   #2
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Fairly certain you will have to lower the tank. BUT:Rumor ??:: Some MH may have an access panel in the floor above the tank, or some owners have cut one. My 90 Cruise Master did not..
Long discussion here about the Ford Chassis. Ford 460 Fuel Issue

I have lowered a tank in a 90 GBM - John Deere chassis to replace wiring for the sender. (*%#@* squirrels) but I've not worked on a Ford chassis.

BTW in the link above they talk about the tank "banging"- this is normal as the large tank expands and contracts.

Hope this helps and welcome to IRV-2

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Old 01-27-2013, 03:07 PM   #3
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If you must remove the tank this should help.
Attached Files
File Type: pdf 1997 F-53 Fuel Tank.pdf (136.0 KB, 37 views)
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Old 01-28-2013, 06:47 AM   #4
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I bought my fuel pump at Rockauto.com, it's the updated one and on my '91 chassis also required the wire shunt (not sure your '97 will). I did a lot of measuring and eyeballing then made an access door in the floor just out side the foot of the bed. I also had to cut through the heating run but no big deal. It was much easier for me then draining nearly 75 gal. of gas and once the hole was cut it took about 20 minutes to replace the pump. Once the cutout is replaced and the carpet laid back down no one would ever know it's there.
92' Holiday Rambler 1000
The wife, me and two furry kids
If you have it, a truck brought it.
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Old 01-28-2013, 11:28 PM   #5
Join Date: Sep 2012
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The ford F53 is not a super duty chassis as such, it has basically been spec'd by ford as a motorhome chassis, although there are similarities between the super duties and the F53 they are not the same unit.

If your MH has a basement then the tank will be under the basement floor and not directly below the bedroom flooring.
Often when dropping a tank with the pump mounted in the top, you only need to drain around half the fuel, you can then usually swing the tank downward on an angle leaving it hanging in its straps, with the straps loosened but still in place on one side.

This should provide ample space to replace the pump unit in the tank top, then you can just swing the tank back up and re-attach the straps.
A trolley or workshop floor jack and some blocks of wood will make the whole job easier to when you lower and lift the tank back in to place.
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Old 01-29-2013, 06:19 AM   #6
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Rusty, our HR has a basement but it doesn't extend over the fuel tank. I know cutting a hole in the floor is not something everyone wants to do but it was the easiest way for me. Even half a tank of fuel is heavy and if not supported correctly could be a problem if it slipped off the jack, plus it was much easier for me then laying under the motor home as I could do everything from above and there is plenty of room between the top of the tank and the floor in our motor home to undo the retaining bolts and wire harness. No matter which way you do it it's not something I would look forward to doing but had to be done.
92' Holiday Rambler 1000
The wife, me and two furry kids
If you have it, a truck brought it.
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Old 01-29-2013, 10:11 AM   #7
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Location: Marysville Wa.
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My son and I just did ours on our 33' HR. fought and fought but could not get the tank out. Don't know if it was HR or somebody else but a shield on the front of the tank would not come loose and the tabs on the sides of the tank were between it and the frame rails(I have a tag axle) I now have an acsess panel under my bed! the pump is a pfs48. got mine at Amazon for $309 with free shipping.
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Old 01-29-2013, 10:20 AM   #8
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The OP said he drained the old gas already.
So he shouldn't have a heavy 1/2 full tank to worry about.

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