De-smogging a 1983 Toy 4x4 pickup--a good idea? (1 Viewer)

[RickC5]

I live in western Colorado and recently bought a 1983 4x4 pickup in great condition--with one major exception: It was originally sold in California, and the 22R engine is totally covered in smog control junk and doesn't run very well.

I'm about to buy the Weber 32/36 carb and the block off plate kit from LCE so I can completely remove ALL the smog control junk. We have no smog inspections here on the western slope, so that's not an issue (at this time), and I intend to keep the truck for years. However, I would like some opinions as to the wisdom of doing this.

At the moment, the truck runs way too rich, and has a choke issue. It also gets poor gas mileage (duh!). So, something needs to be done, but I really would hate to spend a bunch of money trying to fix the original carb only to find that it's unfixable or I'll simply be pouring money down a rat hole.

What do you guys think???

 

[pappy]

The Weber will not solve your issues, and from some of the stories told here it adds more problems. Rebuild the AISIN.

As far as desmogging. I seem to recall there are only two "systems" that you can remove. The EGR system, and the "smog pump" system. Keep the PCV. Also, since this was originally a California truck, it will have an Ox sensor even through it's carbed. Sorry, the truck needs this to run properly. In fact, it could be your problem right now. BTDT.

 

[Mudder]

It's running rich because of an altitude change. Carbs have fixed fuel rates, change jet sizes by going down 1 and see where that gets you.

 

[msahr]

Agreed, I'd definitely start by rebuilding the carb and swapping the jets. There's a TON of info on MUD, Pirate 4x4, Marlin, Yota Tech, etc. forums about rebuilding these carbs. Cool find BTW but no pics?

 

[vegasfj40]

I agree with everyone here. Rebuild the original carb and maybe re jet it. Would love to see a couple of pics!!

 

[SaulG]

Replace Aisin carb with non smog version..