Flooding carb or bad tranny?

vicsbronco · Post by **vicsbronco** » Wed Dec 28, 2005 8:09 am

I bought rebuilt 2150 for DS conversion.
It idles and accelarates okay when station, but if I start driving, as soon as I accelerate- engine dies. It's hard to restart after that and it acts like works on couple cylinders. After couple minutes starts again. Plugs are fouled now.
Any ideas?

Rockcrawler · Post by **Rockcrawler** » Wed Dec 28, 2005 11:20 am

sounds like the floats are off but im not a carb guy. i would check to make sure they are dialed in

Post by **Nobody** » Wed Dec 28, 2005 11:24 am

Check for vacuum leaks.

vicsbronco · Post by **vicsbronco** » Wed Dec 28, 2005 11:33 am

Anybody has a picture of properly hooked up carb?

Post by **Nobody** » Wed Dec 28, 2005 11:58 am

I don't, but I don't think it would matter anyway as they are all a little different.

The PCV hose needs to be hooked up to the large port at the base of the carb. It must also have a good PCV valve at the valve cover.

Plug all the other ports with real plugs...not a piece of hose and a screw.

Make sure the EGR valve vacuum is disconnected.

vicsbronco · Post by **vicsbronco** » Wed Dec 28, 2005 1:02 pm

Are you talking about big EGR valve in front of the carb? I put a plate in between and plugged little port on the valve.
I have a new PCV valve, but here is where I scewed up. There is no big port for PCV like I had on the feedback carb (there is a plugged hole in there- I can drill it out probably). So I hooked PCV to the little port in the back of the new one- mistake? Also, my choke has a port for hot air- I have to plug it too, it was sucking air probably.

Post by **Nobody** » Thu Dec 29, 2005 7:24 am

Some of those carbs use a spacer with a port for the PCV hose.

Sounds like you took care of the EGR valve.

And yes you need to plug the hot air port on the choke.

vicsbronco · Post by **vicsbronco** » Thu Dec 29, 2005 10:32 am

Thanks! I'll try tommorrow and let you guys know.

vicsbronco · Post by **vicsbronco** » Sat Dec 31, 2005 10:52 am

Still waiting for new carb.
My house goes for sale next week, unfortunately I have to give up on my almost finished project.
Thanks for all your help, especially Nobody!
I will be back as soon as I get a new place.
Take care!

OffroadBEAR · Post by **OffroadBEAR** » Tue Jan 03, 2006 9:34 am

Hey, my 79 F250 did this, it had DS and a 2bbl. It would start and run on like 2 or 3 cylinders, and would not throttle. Screwed the plugs, so I replaced them and adjusted the carb to no avail. Try replacing the Duraspark ignition box (big silver box), on original DS vehichles, it mounted on the drivers side of the engine compartment (at least it did on my F250). That worked for me. Try that first to save yourself a lot of time and money, the box is prolly like a couple bucks at a yard.

Paul

DBrown · Post by **DBrown** » Tue Jan 03, 2006 2:38 pm

how is the fuel pressure?

maybe a weak pump running out of steam when it is under load?

vicsbronco · Post by **vicsbronco** » Wed Jan 04, 2006 3:36 am

I tested a pumd- disconnected fuel line at the filter and cranked the engine- it's pumping okay, but you are right- it might slow down under load. But fouled spark plugs tell me it's flooding- so either it's a carb or maybe it's a bad ign. module (new). Problem is- I have to clean my garage and house by the next week. Truck is not inspected, so I can't leave it on the street until better days.

Post by **Nobody** » Wed Jan 04, 2006 5:06 am

Might be time to spend $100 or whatever and have someone look at it. I'm fairly certain is vacuum leaks.

vicsbronco · Post by **vicsbronco** » Wed Jan 04, 2006 6:27 am

Good idea, Nobody.
Maybe this way I'll use a shop as a place to keep my B2 for a while!
It hurts to give it away after so much money spent.

DBrown · Post by **DBrown** » Wed Jan 04, 2006 8:50 am

well, the good thing is you are making progress and moving in the right direction.