Desmog Help!

Howdy,

I have a '77 FJ55 that I just dropped an '81 FJ40 2F engine into. The donor 2F from the FJ40 had already been 'desmogged' and I am more familiar with older F engines and decided to keep this engine desmogged but want to make sure I do it the 'right' way. That's where you all come in, yet again. I have been using the 'search' method and have been educating myself a bit on the process but each thread/build I read is slightly different due to different years/setups I imagine. I was hoping to get some specific advice about my set up from everyone else. Please post up if you have advice.

The donor engine is in. The air rail has been capped off. The entire EGR setup has been removed. The smog pump has been disconnected along with hoses. The carb and dist. had been sent to Jim C. for a rebuild/desmog/bionification! I removed the VCV dealio. I have plugged some of the vacuum ports but I think I still need to disconnect more vacuum lines and plug more ports.


1. Anyone know which vacuum ports to plug, which ones to connect/leave?

2. Is there a 'computer' that needs to be disconnected to make this all work properly?

3. Anyone see anything I may be missing? Or that I did incorrectly?

I'll throw up some pics of what I have done thus far...

Pic 1- Some of the vacuum lines and accesories I am still not sure I should remove...
Pic 2- Can I remove this???
Pic 3- I believe I should be capping this port on the intake manifold, right?

On the other side of the engine...

When I recieved my carb and dist. back from Jim C. they each had one port capped off. I assumed those were to be left as is. I connected the dist to the carb using vac line. I plugged the vac line into the remaining open port on the base of the carb and one of the ports on the dist. cap. This left me with two open ports still on the dist cap. One I believe I was supposed to cap off (larger one)-which I did. The other (smaller one) I believe I read it should have fresh/clean air. Instead of tapping into the air filter assembly I 'borrowed' an idea from Guyute (on Cascade Cruiser forum/Mud) about fabbing a seperate filter for it. So I did. Seems it would work well and looks slick.

Do I need to vent the charcoal canister also?

Here are some pics...
Pic 1- Pinky is pointing to larger port I capped off and the other finger is pointing to the port I vented seperately.
Pic 2- All the stuff I used for the seperate vac line and some vac lines/hoses I installed.
Pic 3- I connected the filter to the vac line and dist. and then mounted it to the radiator with a little something I found hiding in the shop.

By the way, the engine runs well, fairly peppy even. I know it should run better and I think it is suffering from having the desmog only half-done.

Help me get this beauty running top-notch. Thanks everybody!





If anyone is interested, here is a link to my thread about this piggy...

https://forum.ih8mud.com/showthread.php?t=110694

The other holes in the disty caps are just vents, with one plugged there should be a hose to the firewall, no filter ness.

All that other crap on the fender-well, computer crap, all that stuff can be removed. you need a vacuum port for your disty and a vacuum gauge to help you tune. forget the rest of the stuff. There is a good thread here on desmogging, I believe I started it. I can't recall, anywho, JimC outlines the plethora of stuff you can take off for a de-smog. It amazing how uncluttered my engine looks after chucking all that crap! Good Luck

Thanks F-junker, I was hoping to lose more of the vac lines and such...I am still searchin' and readin' other desmog threads-I'll look for the one you just mentioned.

Thanks, Carlos.

Anyone else have any ideas/advice?

Thanks everone, Carlos.

Search the FJ60 section. There are a lot more 2F in 82 FJ60s. Make sure that you don't have any vacuum leaks. If you expect removing the electronic engine control will make it run significantly better or get better fuel economy, you may be disappointed. If it runs well, I would call it good.

Thanks for the advice Pinhead. I am fairly certain I have several vacuum leaks currently and that is partly what I am trying to decipher and deal with. I will check out the 60 section-I had not thought about it! Also Pinhead, thanks for posting up. Each of the desmog threads I have read have had good/intelligent/thought-provoking/helpful advice from you in particular-so I thank you.

The engine runs great in the first three gears but is quite slow/boggish in 4th gear. It also does not like to drive much over 45-50 which I know is even a bit slow for a cruiser. This engine has power I just need to take care of a couple loose ends to bring it out of her...

I'll keep reading and learning. Anyone else with any advice?

Thanks, Carlos.

So, I am still edu-ma-cating myself on this entire process. I have not figured it out quite yet but I will post when I do have some answers/solution.

Anybody else have any advice?