My Desmog Thread (4 Viewers)

[Cruiserdrew]

Just read this monster thread.

Have a question for Jim.

I've just put an 85 2F in my FJ40. It has a JimC desmogged 76 carb and a JimC recurved large cap distributor. It has no smog gear as the distributor and carb were previously on a 76 2F that had been desmogged.

I have the large cap port vented with a filter to atmosphere. The small port is plugged into the air cleaner but I want to eliminate the chance of a distributor explosion. I'm running the FJ60 aircleaner.

Where do I hook up the distributor vent?

 

[OGBeno]

Just read this monster thread.

Have a question for Jim.

I've just put an 85 2F in my FJ40. It has a JimC desmogged 76 carb and a JimC recurved large cap distributor. It has no smog gear as the distributor and carb were previously on a 76 2F that had been desmogged.

I have the large cap port vented with a filter to atmosphere. The small port is plugged into the air cleaner but I want to eliminate the chance of a distributor explosion. I'm running the FJ60 aircleaner.

Where do I hook up the distributor vent?

Must be nice having a day off before your return to work.

 

[FJ40Jim]

Drew, just install the FJ60 VCV & hoses between your FJ60 dissy & FJ60 aircleaner.

That will vent the dissy when engine is running, but isolates the dissy when engine is off, avoiding the "Why'd my dissy blow up when I started the engine" question.

 

[Cruiserdrew]

Drew, just install the FJ60 VCV & hoses between your FJ60 dissy & FJ60 aircleaner.

That will vent the dissy when engine is running, but isolates the dissy when engine is off, avoiding the "Why'd my dissy blow up when I started the engine" question.

Now I need to find one of those VCVs. Thanks for the reply. New motor runs great. I need to get this hooked up right.

 

[Jason82FJ60]

HAC questions

ok being as i will never get the pleasure of visiting the great rocky mountains nor any other pristine wilderness that is above x amount of feet above sea level (and that sucks cause ive been there before) my question is this.

when removing the HAC valve and all associated lines,tubing, wires etc... do i just plug off the opposing connections? or do those connections need to be connected elsewhere?

I intend on removing as much of this spaghetti as possible to facilitate ease of maintenance and i firmly believe the less you have under there/in there the less you have to work on.

thanks in advance gentlemen. i cant say enough about the wealth of knowledge this site provides.

Jason82FJ60

 

[Trapper50cal]

Jason,

Somewhere in here is my old fj60 desmog...Ingrid, an 83 Fj60...the last photos (most recent of Ingrid with Reddish Orange Carr-McMaster tubing) in this thread are of my HAC delete-based desmog (the most recent being the most correct.)

While I can't tell you what occurred with the other sides of the tubes headed to HAC, you may be able to back track it from those photos.

 

[Jason82FJ60]

Jason,

Somewhere in here is my old fj60 desmog...Ingrid, an 83 Fj60...the last photos (most recent of Ingrid with Reddish Orange Carr-McMaster tubing) in this thread are of my HAC delete-based desmog (the most recent being the most correct.)

While I can't tell you what occurred with the other sides of the tubes headed to HAC, you may be able to back track it from those photos.

ok ill give that a try, thank you

Jason82FJ60

 

[FJ40Jim]

Jason, if keeping the other emissions gear, including the spaghetti pipe, then you will remove the HAC valve, and cap the three spaghetti fittings that went to the top of the HAC, and leave the lower fitting open to atmosphere.

 

[H20 Bug]

I have been the proud new owner of a 4/75 FJ40 for just over a year. I am in the process of replacing the wiring harness and would like to remove the emissions control computer as well as the vacuum switching valve if possible. From what I can decipher from the photos, isometrics, and schematics is that this FJ40 has been desmog'd. But not knowing its complete history I am unsure if it was desmog'd properly. I have attached a photo, color coding all vacume lines, to facilitate communication. Also for clarification, the VSV is coded as follows; 1 is the white/green vacume line, 3 is the blue, 5 is the red, 6 is plugged, 7 is plugged, 10 is the white/yellow, and XX the charcoal canister. I hope the combination of description and photos make this process much simpler and thank you all for past, current, and future experience and knowledge.

Somewhere in the middle of South Dakota

 

[FJ40Jim]

Bug,
This thread is primarily directed at the 79-newer 2F w/ catalyst. There is little in common with the simpler 78-older truck.

FWIW, a 75 carb needs 3 vac fittings (AAP, PV, CB) connected to manifold vacuum. There is also a ported vac fitting, that will be capped off for now. Someday, when the stock vac retard dissy is upgraded to vac advance, it can be connected.

 

[H20 Bug]

Thanks Jim, much appreciated.

 

[Borick]

after desmog, sputters when accelerating hard

'86 FJ60, just desmogged with JimC dissy and carb. Runs smooth, idles real nice.

Acceleration is fine and feels strong (for a 2F) as long as I don't get into the pedal too much. Pressing too far down on the pedal, and the truck "sputters" but doesn't accelerate any harder. It's NOT a hesitation or surging, but it sounds a little funny, sputters, and maybe even loses a bit of power.

I'm rechecking all the vacuum line routings, but have followed the diagrams and documents closely so I'm pretty confident of those. Will check for vacuum leaks too.

Secondary advance not working right? Any other ideas?

Thanks in advance and great thread!

 

[lovetoski]

Any other ideas?

I am desmogged, with a jim c dizzy and rebuilt carb. Tor checked (and corrected!!) the work I did. I'm in Seattle, so you are welcome to drop by and see how it all came together.

 

[Borick]

Tor rocks it out. He's done a bunch of great work on my truck.

Appreciate the offer to stop by and might take you up on that in a couple of weeks, but I'm leaving Sat morning for a 10-day excursion and am slammed pulling everything together.

Was hoping a little virtual assistance might help figure out what's going on. Any ideas anyone?

 

[1911]

Any ideas anyone?

Advance your timing a little? My de-smogged 40 w/ Jim C. re-curved dissy likes at least 10 degrees BTDC base timing and could probably take a little more.

 

[Borick]

Thanks, I'll give that a try.

 

[jfnall]

Here is what jimC emailed to me when I was setting mine up like this. (went to HEI dizzy and prob gonna go back to OEM)

jimC
Start by setting base timing at 10BTDC. If it runs well, add a few more degrees, see if it runs better. Keep adding advance until it gets hard to hot restart, or it spark knocks under throttle, then back off 4 degrees.

Jeff

 

[Chriedwa]

Throwing in my 2 cents...I removed the SP this weekend because it seized a few days ago (thank goodness this happened in the garage) and as a disclaimer, I'm on the lower end when it comes to mechanical skills.

Well, I did get the pump off without removing the power steering pump. I did, however, have to take the pulley off and loosen the PS belt before I could get it out. Once out it disassembled gutted easily. The only real issue I had was lining up the slots to slide the long bolt back in.

All in all it took me the better part of a Saturday but I saved a fist full of dollars while getting more acquainted with my Cruiser.

 

[Borick]

Well, FWIW it did turn out to be an advance issue. It was a late night I didn't pay attention when removing the dissy, so had to go find TDC and insert according to the FSM. The angles the manual shows for insertion seem way off and I apparently wound up off a few teeth and couldn't advance far enough. The truck had no guts.

Re-did the dissy install on the road (well, actually in a parking lot at a brewery) and just focused on getting the rotor to point to the #1 position on the cap after insertion. That did the trick. Now running with plenty o' power (in 2F terms anyway) and the thing runs great. Set advance via trial and error, but will now that I'm back home I'll check it with the light.

 

[Mountain Monkey]

My 1989 FJ62 California model has a pristine engine compartment, runs great, still has factory R12 in the A/C, 180k mi. garage kept. So yeh, sweet. Anyway, I need to de-smog to make room for CNG dual-fuel conversion...I have free nat. gas. and I am in West Virginia, we don't have any laws here. So here's a deal for ya....some of you guys need parts, some need pictures of a complete system to model your re-constructions after...I'd like to be of some service as I am new here and gain a lot from all of your combined knowledge and sharing. I don't want to pull parts off until I have given you guys a chance to mull over my proposal which is, "let me know what I can do to re-pay your efforts in sharing all of this information that helps me get the job done."