Fuel Pumps in 2000 Winnebago 35U

DaSpoiler · 12-04-2013, 04:26 PM

With the ongoing and repetitive problem with fuel pumps, has anyone ever constructed an access through the floor from inside the motor home? If so, could I get the information on exactly where to make the access and if not, could I get the layout of where to put one?

edgray · 12-05-2013, 02:40 PM

Quote:

Originally Posted by DaSpoiler

With the ongoing and repetitive problem with fuel pumps, has anyone ever constructed an access through the floor from inside the motor home? If so, could I get the information on exactly where to make the access and if not, could I get the layout of where to put one?

First let me welcome you to iRV2.com. Glad you joined and posted.

Take a look at post #4 in this thread: http://www.irv2.com/forums/f22/fuel-...val-54887.html

NeilV · 12-05-2013, 08:47 PM

Quote:

Originally Posted by DaSpoiler

With the ongoing and repetitive problem with fuel pumps, has anyone ever constructed an access through the floor from inside the motor home? If so, could I get the information on exactly where to make the access and if not, could I get the layout of where to put one?

My 35U on the F53 chassis is almost 13 years old now and still on the original trouble free fuel pump. What chassis are we talking about Workhorse or Ford?

DaSpoiler · 12-09-2013, 05:23 PM

Thank you for your reply Neil. The chasis on this is a Ford.

NeilV · 12-10-2013, 03:25 AM

Are you experiencing a problem or just reacting to some stories you've seen circulating on the internet? Was not aware of a big ongoing problem and in 13 years and close to 70,000 miles have not had any fuel pump issues myself or noted in the repair history of the coach prior to my purchasing it several years ago.

Hikerdogs · 12-10-2013, 06:05 AM

You might want to check a little deeper into the "fuel pump problem" to be sure which style pump you have in your chassis. All the problems I am aware of were with the diaphragm style pumps. I believe your chassis has a turbine style pump. Our 2001 Adventurer had the turbine style pump and was still working fine when we traded it off with over 100,000 miles on the odometer.

DaSpoiler · 12-10-2013, 10:35 AM

Neil,

Ty for your reply. No my father is not reacting to anything he saw on internet since he doesnt use the internet lol. This is a problem he himself has been dealing with since he purchased his unit a few years ago.

Hikerdogs: I will let my father know your answer as well. Thank you very much.

My father is just wanting to make an access panel from inside the unit to the fuel pump area so he doesnt have to drop the fuel tank each time. Thank you all for your assistance and help with this

Hikerdogs · 12-10-2013, 11:33 AM

Here's a link to some discussion on the problem fuel pumps. It appears the turbine style pumps were installed after 6/30/97.

Motorhome Magazine Open Roads Forum: Fuel pump 96 F-53 chassis (Ford)

As mentioned earlier the diaphragm pumps were the ones susceptible to failure. The only precautions I am aware of for the newer style pumps is to keep the fuel level above 1/4 tank . More fuel is pumped through the system than the engine needs for combustion. The remainder is used a cooling mechanism. Also the generator pickup tube only goes to the 1/4 tank level. The generator will not run below this level to avoid running out of gas.

jamesrxx951 · 12-10-2013, 02:39 PM

If you continually need to replace the fuel pump, strong chances your tank is contaminated with debris and it is clogging the filter sock. The tank will need to be removed, cleaned out and if it is rusting or flaking, it will need to be resealed inside.

Stan.Birch · 12-15-2013, 02:45 PM

Quote:

Originally Posted by Hikerdogs

The only precautions I am aware of for the newer style pumps is to keep the fuel level above 1/4 tank . More fuel is pumped through the system than the engine needs for combustion. The remainder is used a cooling mechanism.

X2. The most probable cause of fuel pump failure, would be allowing the fuel level get too low, causing the fuel pump to overheat and fail. Our 15 year old Ford chassis has been very reliable, only needing a couple COPs (Coil on Plug) replaced.

jamesrxx951 · 12-15-2013, 02:50 PM

Quote:

Originally Posted by Stan.Birch

X2. The most probable cause of fuel pump failure, would be allowing the fuel level get too low, causing the fuel pump to overheat and fail. Our 15 year old Ford chassis has been very reliable, only needing a couple COPs (Coil on Plug) replaced.

Not sure how they would over heat because the fuel is what keeps the motor cool. The pump pulls the fuel up and through passages within the pump assembly where heat is extracted. That is more of an urban legend that actual truth. Pumps are designed to work within a certain heat range. Also if there was truth in that, the tank would be designed to ensure that the pump is in a constant fuel bath for cooling.

NeilV · 12-16-2013, 10:49 AM

Quote:

Originally Posted by DaSpoiler

Neil,

Ty for your reply. No my father is not reacting to anything he saw on internet since he doesnt use the internet lol. This is a problem he himself has been dealing with since he purchased his unit a few years ago.

OK then it is possibly a problem caused by the previous owner leaving the tank low enough to generate damaging condensation and rust. I keep mine filled after each trip and treated with a stabilizer if its not going to be used regularly to minimize that possiblilty. Time to play Dick Tracey on that tank and remove it completly to get it cleaned up, inspected and recoated internally.