|
|
05-12-2010, 06:30 PM
|
#1
|
Junior Member
Fleetwood Owners Club
Join Date: May 2010
Location: SW, Michigan
Posts: 4
|
83 Southwind 454 boggs badly
I have a 1983 Fleetwood Southwind 27ft class A with a Chevy 454 4BBL engine.
Ran fine last year but this year it starts up and idles fine, if you drive it while pushing on the gas pedal very lightlyit is fine but if you push the pedal down too far (like 1" or more) then it sputters/boggs/backfires/decellerates till i let up on the pedal.
Any guesses?
thanks.
__________________
1983 Fleetwood Southwind 27ft Class A
|
|
|
|
Join the #1 RV Forum Today - It's Totally Free!
iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!
You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!
|
05-12-2010, 06:56 PM
|
#2
|
Senior Member
Workhorse Chassis Owner
Join Date: Dec 2006
Location: La Quinta California
Posts: 523
|
Yep, On the carb (Rochester center) you will see a tube sticking up....
Pour some "Seafoam" down the throat of that pipe till it overflows a dab then let it sit overnight.
Run it the next day and repeat as needed.
"Berryman B-12" will clean it also but get the spray can.
Jim
|
|
|
05-12-2010, 07:00 PM
|
#3
|
Senior Member
Monaco Owners Club
Join Date: Mar 2000
Location: Yuma Arizona USA
Posts: 2,996
|
Sure sounds like carb problems. Other thing to check is pull the dog house after dark and watch for shorting wires. Sometimes critters will get in there and chew on the wiring.
__________________
Brian, Loretta & Lucy (Golden Retriever)
2008 HR Endeavor 40 PDQ , ISL 400
2010 Dodge Ram 1500 Toad
|
|
|
05-12-2010, 07:58 PM
|
#4
|
Moderator Emeritus
Ford Super Duty Owner
Join Date: Aug 2000
Location: Bryan, TX when not traveling.
Posts: 22,948
|
The good old QuadraJet. If the cleaning fluid does not work, plan to do a rebuild job. There a lot of parts in the card and it takes some work. It may be the accelerator pump.
Ken
__________________
Amateur Radio Operator (KE5DFR)|No Longer Full-Time! - 2023 Cougar 22MLS toted by 2022 F150, 3.5L EcoBoost Tow Max FX4 Lariat Travel with one Standard Schnauzer and one small Timneh African Gray Parrot, retired mechanical engineer
|
|
|
05-12-2010, 08:08 PM
|
#5
|
Senior Member
Join Date: Nov 2009
Posts: 1,365
|
Quote:
Originally Posted by TXiceman
The good old QuadraJet. If the cleaning fluid does not work, plan to do a rebuild job. There a lot of parts in the card and it takes some work. It may be the accelerator pump.
Ken
|
Had a lot of Quadrajet carbs and that is what I thought of first.It may be the accelerator pump.
Easy fix if all else is ok.
__________________
2021 Trail Runner 211rd 25'
2015 GMC Canyon
Mark & Carole Big Bear, Ca. RVM 54
|
|
|
05-12-2010, 08:36 PM
|
#6
|
Senior Member
Newmar Owners Club
Join Date: Apr 2010
Posts: 460
|
If it bogs under acceleration (and then catches up) it most likely the accelerator pump. Quadrajet uses a leather or rubber seal on the end of the piston that leaks. It's easy to replace and easy to find.
|
|
|
05-13-2010, 06:16 AM
|
#7
|
Junior Member
Fleetwood Owners Club
Join Date: May 2010
Location: SW, Michigan
Posts: 4
|
WOW! 5 replys to my question just over night. Thanks everyone. I think im gonna really like this web site.
__________________
1983 Fleetwood Southwind 27ft Class A
|
|
|
05-13-2010, 09:24 AM
|
#8
|
Senior Member
Workhorse Chassis Owner
Join Date: Dec 2006
Location: La Quinta California
Posts: 523
|
Other items to look at are your main fuel filter along the passenger siderail and that small carb filter....
Another trick is remove the fuel cap and drive it around..Never know.
Jim
|
|
|
05-13-2010, 11:46 AM
|
#9
|
Senior Member
Join Date: Aug 2009
Posts: 1,696
|
Typical accelerator pump issue, especially in engines that have not been run for longer periods of time - the fuel inside the carb evaporates, and internal parts dry out and shrink or deteriorate - the leather or similar plunger material used in the accelerator pump also dries out or deteriorates, and when heavier throttle is applied, engine bogs for lack of the needed additional shot of fuel. Sometimes, if the fuel is again present, the pump plunger will regain it's former shape and flexibility - and all will again be well - otherwise, the pump plunger will have to be replaced.
__________________
John Day....|'88 Winnebago Super Chief 27ft. Class A Eastern .....|'88 KIT model 240 24 ft. 5er Oregon ......|'02 Dodge/Cummins 2500 Quad Cab
|
|
|
05-13-2010, 06:12 PM
|
#10
|
Junior Member
Join Date: Apr 2010
Location: Williston, Fl.
Posts: 19
|
Another thing you can check is the electric fuel pump. When I had my 84 Southwind on a Chevy chassis I had the same experience. I found that the electric fuel pump mounted near the tank had a bad electrical connection. It would idle just fine and drive down the street up to about 20 M.P.H. Trying to go faster than that and it would do exactly what you decribed. Fixed that and it ran great.
The engine mounted mechanical pump can not pull enough fuel volume through that long of a line to keep up with the higher engine speed so the electric pump is added near the tank to help. Mine had the very common Holley Red pump which is a 4-7 lb. pump suitable to use without a pressure regulator.
Another possibility would be to check all your rubber fuel hoses for dry-rot cracks or leaks. I had that experience too.
|
|
|
05-13-2010, 11:13 PM
|
#11
|
Junior Member
Fleetwood Owners Club
Join Date: May 2010
Location: SW, Michigan
Posts: 4
|
Quote:
Originally Posted by Joe&Karen
Another thing you can check is the electric fuel pump. When I had my 84 Southwind on a Chevy chassis I had the same experience. I found that the electric fuel pump mounted near the tank had a bad electrical connection. It would idle just fine and drive down the street up to about 20 M.P.H. Trying to go faster than that and it would do exactly what you decribed. Fixed that and it ran great.
The engine mounted mechanical pump can not pull enough fuel volume through that long of a line to keep up with the higher engine speed so the electric pump is added near the tank to help. Mine had the very common Holley Red pump which is a 4-7 lb. pump suitable to use without a pressure regulator.
Another possibility would be to check all your rubber fuel hoses for dry-rot cracks or leaks. I had that experience too.
|
Interesting...2yrs ago I had a no start issue, i replaced all the fuel line and mechanical fuel pump, still no start, i removed the mechanical pump and put in an electric fuel pump and also replaced the rubber hoses on top of the gas tank and that solved the issue. I think it was the rubber hoses all along...but now the elec pump is still there...the mechanical pumphole was covered. This didnt appear to have a back "helper" elec pump.
__________________
1983 Fleetwood Southwind 27ft Class A
|
|
|
05-14-2010, 02:32 AM
|
#12
|
Senior Member
Workhorse Chassis Owner
Join Date: Dec 2006
Location: La Quinta California
Posts: 523
|
Got rid of my electric pump (Carter street/strip) and went back to a better mechanical pump (Edelbrock 1722).
The A.C. Delco could NOT suck up the fuel with a 27 foot distance and a 3/8 fuel line, Your 27 footer has a much less distance with a 3/8.
Jim
|
|
|
05-14-2010, 08:53 PM
|
#13
|
Junior Member
Fleetwood Owners Club
Join Date: May 2010
Location: SW, Michigan
Posts: 4
|
I mounted the fuel pump to the frame in the back just a few feet forward of the tank so it is pushing fuel about 20 ft.
__________________
1983 Fleetwood Southwind 27ft Class A
|
|
|
05-22-2010, 07:31 AM
|
#14
|
Senior Member
Join Date: Sep 2009
Posts: 169
|
The accelerator pump is easy to check, look down the throat of the carb and slowly open the throttle. There should be a immediate strong stream of gas that shoots out from the side of the throat, if not it`s bad. It may work when ya open the throttle fast but not when opening under normal driving conditions.
Another thought is the possibility of the carb being plugged up, on our recent trip my 85 454 ran fine one day then all of a sudden it wouldn`t accelerate, would almost die and had no power. But if ya pushed the gas pedal all the way to the floor and kicked in the four barrels it would take right off which told me it wasn`t a fuel supply issue.
I would remove the carb and blow out the passage ways with only a can of WD and it would run fine again. Both times there was these little red balls of slime in the float bowl. The second time it happened I was by a tractor dealership so I went over and used their air hose to blow out the carb better. The mechanic asked me if i`d run any ethanol in it and I said that I probably had, he said that it will clog up a carburetor and that it won`t show in the filter but will form this slime like I found in the bowl.
I think he may be on to something, my filter was clean as a whistle both times but the float bowl had this junk floating around in it. I`m going to run premium in everything from now on and nothing with ethanol in it. Take that info for what it`s worth as I can`t swear that`s what caused it but i haven`t had the problem since.
If you can safely do so try kicking it into four barrel and see if it takes off, if so you know your getting plenty of gas and that the low side of the carb is plugged up.
__________________
85 Winnebago Chieftain.
It`s not about surviving the storm, it`s learning how to dance in the rain.
|
|
|
|
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
|
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
» Recent Discussions |
|
|
|
|
|
|
|
|
|
|
|
|
|