Weber Conversion Project

[MasterTec]

I have an '89 Carbed 4-speed and I just wanted to document my conversion project - with lots of pictures!

I've seen a lot of information on this but nothing with a bunch of information in the same thread.. so I figured I'd start my own.

Here's what I've got so far:

1> Unboxed the new carb that I purchased from amazon:


2> Removed old carb (click on image for album):



3> Marked the adapter plate so I can drill out the holes to make it work.

At this point the battery on my drill was dead and it started to rain outside so I put my project on hold for the day. I'll be sure to update this thread as things come along!

I've decided I'm going to leave the computer hooked up and see what happens. I'd like to keep a working EGR valve and I'd like to make a high idle circuit work somehow. I did some research and it looks like I should be able to make this work without setting a check engine light but we'll see what happens. Worst case scenario I can disable the annoying CHECK ENGINE light (and also the SHIFT light while I'm at it!)

Anyway... more to come!

[KingFish]

I am close to this same job, I look forward to your progress.

[MasterTec]

I screwed up with the album link. CLICK HERE to see my photo album.

[denguy]

Who dreamed up all that old carb stuff? This must be the final stage in the evolution of the production carb. No wonder they went to fuel injection. I know, someone is bound to say that it is really quite simple.
If you don't mind my asking, how much?

[zoe60]

Keep the MAP sensor hooked up with vacuum feeding it and leave your o2 sensor intact. I think that's all it takes to keep your cel light off. Looks like the right carb to make things easy. You can put the throttle linkage piece from the original carb on the Weber. Don't tighten the nut too much. Then if you straighten out the bracket for the idle up dashpot you can mount it back in it's original spot and get it to work with your new Weber. Takes a little fenageling, but it will work. Use the vacuum line on the Weber for your vacuum advance and your idle will be more stable. I've been driving mine set up like yours for about 2 years now and it runs great. Mine is cold natured though. Hope this helps. Good luck making your adapter.

[MasterTec]

Keep the MAP sensor hooked up with vacuum feeding it and leave your o2 sensor intact. I think that's all it takes to keep your cel light off. Looks like the right carb to make things easy. You can put the throttle linkage piece from the original carb on the Weber. Don't tighten the nut too much. Then if you straighten out the bracket for the idle up dashpot you can mount it back in it's original spot and get it to work with your new Weber. Takes a little fenageling, but it will work. Use the vacuum line on the Weber for your vacuum advance and your idle will be more stable. I've been driving mine set up like yours for about 2 years now and it runs great. Mine is cold natured though. Hope this helps. Good luck making your adapter.

I got the adapter drilled out but I have to take it to work to bevel the holes. It should work just fine.

I don't know what that carb kit is supposed to fit but it was the least expensive Weber 32/36 carb kit they had at Amazon. Even if it was the wrong one I would just turn it around and make it work that way - or reposition the throttle cable. I was thrilled to see that it actually matched the picture!

I figured the throttle arm would fit on the Weber. I'm glad to have someone verify it! And yeah I figured I could make the dashpot work on it too.

Anyway thanks for the tips! More to come in the very near future!

[zoe60]

http://www.fordfestiva.com/forums/showthread.php?t=32183&highlight=attempting+weber

Look here at page 5 for how I did mine. That's before I installed the fast idle stuff.

[MasterTec]

If you don't mind my asking, how much?

If you click on the pic of the new carb it will take you to the amazon link for it. I paid $235 for it and everything looks like it will work just fine, aside from some minor modifications having to be made to the adapter.

The car is a PITA to start in the mornings. Once started and warmed up it does fine but does some goofy idle looping when cold. I've also watched my fuel economy decrease from 42mpg down to 33mpg and I keep getting a very faint whiff of fuel in the mornings as well.

I think the seals are leaking when cold and allowing the carb to drain out.. so I figured if I'm going to tear it apart anyway I might as well replace it with something better!

[zoe60]

Heres a pic of how to do the fast idle.

[zoe60]

Sorry about the hugeness, If a mod could get rid of it I could do it the right size.

[MasterTec]

http://www.fordfestiva.com/forums/sh...tempting+weber
Look here at page 5 for how I did mine. That's before I installed the fast idle stuff.

That's actually the thread that gave me this idea in the first place!

I just took a look at the instruction manual and apparently this carb kit is for the Toyota 22/22R engine. I have a feeling the jets may be a little too big. What size jets are working for you?

[zoe60]

It's been a long time so I'll have to take the top off and check but I think the main and secondary are 135's. Can't remember the idle jet sizes but I think they are 50's. If I get time I will double check. Cheers.

[zoe60]

I forgot to mention, my engine is a B6 with a Festy intake manifold so my jet sizes may be slightly large for you if you have a B3. Sorry.

[denguy]

I wish that someone would come up with a simple little hand held air-fuel ratio meter gizmo that you could stick up your exhaust.

[denguy]