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Fri Mar 07, 2008 6:37 pm

dual tanks (which have been cleaned and relined) to tank switch then to this dudad in the picture what is it??? It has 36,000 original miles and a new carb to pass Cali smog looks like a newer fuel pump(mechanical), new fuel filters. If i fire it up she'll warm up and run like a top..If i throttle it hard enough to open the 4bbl a few times then it starts running rough like its starving, same going up a hill. If i sit there for a while and feather the accelerator awhile she'll come back out of it...any help??

[img]http://smg.photobucket.com/albums/v319/pauli494/?action=view&current=IMG_0421.jpg[/img]
cant get a pic to post heres a linkhttp://smg.photobucket.com/albums/v319/pauli494/?action=view&current=IMG_0421.jpg

Fri Mar 07, 2008 6:52 pm

Looks like a Facet electric fuel pump.

Fri Mar 07, 2008 6:57 pm

hmmm..i was thinking some sort of cut-off since the line goes to a regular mechanical pump on the motor...I wouldn't have thought it would have both an electric and a mechanical :? BTW anybody know what i did wrong with the IMG that it didn't work?

Fri Mar 07, 2008 7:24 pm

How many fuel lines go into it ? Is there 2 or 3 ?
If there is 3 than it is the electronic valve that switches between the 2 tanks .
If it was stuck midway it could be blocking off the flow of fuel to the engine .
If there is only 2 lines then it is a electric fuel pump , Bypass it and see how it runs .

Fri Mar 07, 2008 7:29 pm

dms wrote: How many fuel lines go into it ? Is there 2 or 3 ?
If there is 3 than it is the electronic valve that switches between the 2 tanks .
If it was stuck midway it could be blocking off the flow of fuel to the engine .
If there is only 2 lines then it is a electric fuel pump , Bypass it and see how it runs .
2 lines into the tank switch(not shown) then 1 one line out from there to the thing in the picture then 1 line out of it to the mechanical pump on the block

Fri Mar 07, 2008 7:36 pm

12 volt fuel pump .
Bypass it . it will run fine without it .

Fri Mar 07, 2008 9:05 pm

I had a similar problem on my 72 Sportscoach when I got it. It turned out the inline fuel pump was really nasty.

We were towing on our way to the races when it started doing this and it got worse the farther we went. Wide open or up hill, it just wouldn't go.

After several hours of this it finally stopped raining and I got under and removed the inline filter. Replaced it with a piece of steel fuel line and we were "Off to the races" as they say. Never gave us any trouble after that!

Sounds like yours is fuel starving. The facet pumps usually work very well. but if you have a clogged up filter, they just won't be able to pump.

These things have a lot of trouble like this because they sit far more then they are rolling. moiisture builds up in the tanks and this is the result.

I try to keep a large supply of dry gas on hand for the off season when its sitting. Come racing season, she never sits still for more then a few days.

Fri Mar 07, 2008 9:19 pm

drscope wrote: I had a similar problem on my 72 Sportscoach when I got it. It turned out the inline fuel pump was really nasty.

We were towing on our way to the races when it started doing this and it got worse the farther we went. Wide open or up hill, it just wouldn't go.

After several hours of this it finally stopped raining and I got under and removed the inline filter. Replaced it with a piece of steel fuel line and we were "Off to the races" as they say. Never gave us any trouble after that!

Sounds like yours is fuel starving. The facet pumps usually work very well. but if you have a clogged up filter, they just won't be able to pump.

These things have a lot of trouble like this because they sit far more then they are rolling. moiisture builds up in the tanks and this is the result.

I try to keep a large supply of dry gas on hand for the off season when its sitting. Come racing season, she never sits still for more then a few days.
So i take it it's not uncommon in an RV to have both an electric pump and a mechanical pump going at once?

Fri Mar 07, 2008 9:27 pm

A lot of big RVs have more then one electric pump usually back near the tanks. Then they have the standard engine mounted mechanical pump.

My Sportscoach has 2 electric pumps, one on each tank. When you run low on one, you simply throw a switch on the dash and the other pump comes on.

Water and crud in the fuel is about as common as roof leaks or water feed problems!

Fri Mar 07, 2008 9:38 pm

drscope wrote: A lot of big RVs have more then one electric pump usually back near the tanks. Then they have the standard engine mounted mechanical pump.

My Sportscoach has 2 electric pumps, one on each tank. When you run low on one, you simply throw a switch on the dash and the other pump comes on.

Water and crud in the fuel is about as common as roof leaks or water feed problems!
thanks for the tip :) ....should these make any noise with the ignition on?

Fri Mar 07, 2008 9:46 pm

One should be running. What make is this old girl? Here is a great web site that is just full of all kinds of valuable information.
http://groups.msn.com/ClassicWinnebagos

You should sign up just to be able to get in and look around.

I really wish there was something like this for my Sportscoach, but I don't think it was a very popular choice when it was new. There is a web site for the Sportscoach but it comes and goes and never gets updated. That winnebago site is great and is constantly updated with all kinds of new technical stuff on these old things.

Fri Mar 07, 2008 9:55 pm

drscope wrote: One should be running. What make is this old girl? Here is a great web site that is just full of all kinds of valuable information.
http://groups.msn.com/ClassicWinnebagos

You should sign up just to be able to get in and look around.

I really wish there was something like this for my Sportscoach, but I don't think it was a very popular choice when it was new. There is a web site for the Sportscoach but it comes and goes and never gets updated. That winnebago site is great and is constantly updated with all kinds of new technical stuff on these old things.
http://smg.photobucket.com/albums/v319/pauli494/?action=view&current=DSCF0436.jpg
I think its made by Monaco?? I cant seem to get the pics to post direct it ends up looking like this[img]http://smg.photobucket.com/albums/v319/pauli494/?action=view&current=DSCF0436.jpg[/img]

Fri Mar 07, 2008 10:50 pm

She looks nice! I had those same hub caps on my Sportscoach when I got it.

If you don't have emergency road service for that thing, GET IT! I have the Good Sam ERS for $80 a year. We had some tire issues a while back and I'm glad we had it! One phone call and they came and got us going again. I had to pay for the 2 new tires, but I didn't have to pay for the road call AND I didn't have to deal with the wheel & tire that weighs 4 times as much as me!

It was worth the $80 just to be able to watch the guy do it for us!

I wouldn't think about calling road service for the car, but the tires are just too darn big for me to handle on the coach. And the Emergency road service also covers the trailer!