I've been perplexed by a failure of acceleration on my RV.
Items checked...
Carburetor, Manifold , Catalytic Converter, Muffler, Exhaust pressure, Fuel regulator,
Spark plugs and wires, Batteries, Gas is good, oil is new.

Not sure if their's anything else to look at on the 454. The engine runs but when it's time to step on the gas it just dies out. Looking for some direction on what to look at next.
Geno Rivera
Santa Maria , California

Views: 340

Reply to This

Replies to This Discussion

Fuel pump, collapsing rubber fuel line  under high vacuum.

I did not see fuel filter on the list.  On some chevy carbs there is a filter right where the fuel line enters the carb.  In the carb itself, not sure if you have this or not.  You may also want to follow the fuel line from the tank to the carb as a lot of times someone has added a extra filter somewhere along the way.  Hope this helps, Tony, Joy and Cool Paw Luke

I ran into this exact situation years ago with a 76 chev 350. There was an in line filter and a small cone shaped filter that was right at the gas line intake to the carb. It had been in there so long I ended up breaking the gas line trying to get it out. It's a pretty cheap fix to try before going on to something else.Good luck. 

Would the fly wheel being worn be a possibility? The rv has only 46k. One would not think it could be worn out but I don't want to rule it out. I sent the ideas to the Tech so they can be checked out. I appreciate and thank you for the suggestions, if anyone can provide any more light on the subject, I thank you in advance.

I'm with Tony on this one. Assuming you have the Quadrajet, there's a filter inside the carb on the fuel inlet side of the fuel feed line. My 76 Barth also has one between the gas tank and the (mechanical) fuel pump. My money is on a clogged fuel filter. 

Richard

Geno,you need to check the fuel pressure and fuel delivery volume.You might have a soft fuel line hose.Maybe your fuel tank cap is incorrect or defective.A non vented cap may be the problem.

We have tried the suggestions thus far...we are batting Zero. I guess it's back to square one.

I believe that I would go back to the accelerator pump.  sounds like it it is ruptured or wore out and not giving that first squirt of gas when you accelerate.  Also check the timing advance diaphram.

Thanks for the reply Sam, I will check it out.

Geno,you could check the exhaust back pressure with a gauge installed at the y pipe. Maybe a mouse nest in the muffler?

Had the back pressure checked..it's fine

Hi Geno, Wayne here from Australia. Had a similar problem about four years ago with our '88 Econoline 460ci. We had recently aquired our rig from an importer and after a couple of months found that while being great on the flat, lost power on any incline. The clue to the solution was extreme back pressure causing blowouts in the rusted body of the cat converter. Turned out to be a loose piece of metal inside completely blocking the outlet, 'only on an incline'. After replacing we felt as though we had wings. Just a thought. Cheers

RSS

Members

HOW TO MEMBER POSTS

  •         How To Links 

-Search Good Old RV's

-Start a New Group 

-Roof Repair Photos & Products

-Repair an RV Roof

-Pick Roof Sealer   

-Understanding RV Electrical Systems 

-Get RV Insurance   

-What to Look For When Buying a Used RV

-Jack Installs Fuel Injection in his Dodge 

 RV ARTISTS 

 

 Artist Roads                                              

                      

JOIN US AT GOOD OLD RVS

If you love classic and vintage RVs then come Join us. Come on in and have some fun. JOIN HERE NOW

Forum

Starcraft Ceiling Repair

Started by Donald Morgenroth in RV Repair & Maintence Mar 18.

Replacing controller ,? And inverter 1 Reply

Started by Dave King in Vintage & Classic RV Restoration & Purchase. Last reply by Rick Cornell Apr 27, 2023.

Sway Bar Links 2 Replies

Started by Grey Wolf in RV Repair & Maintence. Last reply by Grey Wolf Apr 22, 2023.

Events

Videos

  • Add Videos
  • View All

JOIN US - COME ON IN!

If you love classic and vintage RVs then come Join us.

 Come on in and have some fun.      

 Dedicated to a simpler, more rewarding and fun way of life in a Good Old RV... 

Vintage Travel Trailers, Vintage Campers, Camper Restoration, Bus Conversions, Vintage RV Forums, Old RVs, Tiny Homes, Boondocking

A work of art by member Paige Bridges

+++++++++++++++++++++++++++++

 Disclaimer - Please Read it

Enjoy this site and use it totally at your own risk.

By using or viewing this site YOU agree to Hold Harmless anyone associated with it including other members. Also, YOU agree that YOU are solely responsible for ANY and ALL actions, results or damages. Members "opinions" are just that and any repair or alteration comments or recommendations are by folks who are not licensed repair  or mechanical professionals. Any repairs or modifications you do totally at YOUR OWN RISK. Use licensed professionals for all work to avoid possible serious injury or damage. Use  banks for purchases.  Have fun!

Copywrite & Trade Mark Registered GoodOldRV© ,GoodOldRVs©, GoodOldRVs.com©,GoodOldRVs.net©,GoodOldRV.Com©

© 2024   Created by Jimco_W001.   Powered by

Badges  |  Report an Issue  |  Terms of Service