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03-21-04, 05:46 PM
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#1 (permalink)
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Forum Regular
Join Date: Jan 2004
Location: Hawkinsville, GA
Posts: 163
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smog removal
I am not mechanically inclined at all - in the medical profession. Just had a friend look at my cruiser and he said he would remove all the smog stuff on it. I live in rural Georgia with no emissions testing. Will never sell this cruiser. What is entailed and will it change any performance issues?
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03-21-04, 06:39 PM
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#2 (permalink)
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Forum Lifer
Join Date: Mar 2003
Location: Sacramento, CA
Posts: 8,824
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smog removal
Don't do it. Removing smog equiptment usually does more harm than good. You have fuel injection so there isn't that much "smog stuff". If you remove the smog, you will spend a lifetime of headache chasing all the problems that it will generate. For instance, if you remove the EGR, it will tend to ping under load. Do you really want that for the next 10 years? Even if you remove the EGR and the air injection, at most you will add 5 hp which of course makes no difference. Unfortunately, Bubba's first response is always to remove the smog stuff but in this case it's the wrong place to go. If you are looking for better performance, get a Vortec conversion.
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03-21-04, 08:37 PM
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#3 (permalink)
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Forum Lifer
Join Date: Feb 2002
Location: OC, CA
Posts: 6,521
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smog removal
I wouldn't fool with it. If you feel compelled to do it, I would just remove the air pump and the air injection components and plug the EGR vacuum line. If you remove more, it may run worse, because it is there primarily for electronic engine control rather than just reducing smog.
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03-21-04, 09:26 PM
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#4 (permalink)
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Forum Regular
Join Date: Jan 2004
Location: Hawkinsville, GA
Posts: 163
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smog removal
OK, not going to touch the smog system. Can someone explain why the throttle position sensor would be unhooked?
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11-30-04, 12:35 PM
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#5 (permalink)
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250+ Club
Join Date: May 2004
Location: Corvallis, OR
Posts: 282
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How about smog removal on a 83 cali model fj-60? That is what I have and someone told me it will make a diffrence in power and I know it will make it easier to work on. If i desmog it I will keep all the stuff in a box in case I move or sell the thing.
E
__________________
1971 FJ55 stock pig currently under the knife
1992 FJ80 My Princess
1992 Dodge Stealth RT/TT
1974 FJ40
http://elvinsmith.com
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11-30-04, 01:12 PM
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#6 (permalink)
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Site Addict
Join Date: Jul 2003
Posts: 1,488
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Quote:
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Originally Posted by Cruiserdrew
Don't do it. Removing smog equiptment usually does more harm than good.
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Are you talking about a 60 or 62? If you're dealing with a 60 I disgree that a desmog does more harm than good. A well thought-out desmog will not only free up some power (especially if you remove the cat) but will end the driveability problems that malfunctioning emissions devices cause in these old trucks.
By well thought-out I mean that the person doing the removal understands what each system does and how to remove it without impacting other engine functions. For example, the pinging issue can be dealt with by backing off the timing, using higher octane gas, having the dizzy advance curve redone, or putting in a non-USA unit.
When I first got my 60 it ran like crap but after the desmog it ran flawlessly and consistently (unitl I threw in the V8).
__________________
1986 V8J60
There's a feeling I get, when I look to the West...
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11-30-04, 01:29 PM
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#7 (permalink)
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250+ Club
Join Date: Oct 2004
Location: Christiansburg VA
Posts: 731
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Lets talk about a 60. The cat is gone and I want to pull the smog stuff out of the engine. Never going to sell it, no smog test here etc, etc. Can someone be more specific on what needs to be pulled and so on?
Chris
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11-30-04, 02:00 PM
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#8 (permalink)
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Site Addict
Join Date: Jul 2003
Posts: 1,488
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Quote:
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Originally Posted by TheGr8Doughboy
Lets talk about a 60. The cat is gone and I want to pull the smog stuff out of the engine. Never going to sell it, no smog test here etc, etc. Can someone be more specific on what needs to be pulled and so on?
Chris
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There's a diagram in the Tech Section here that shows a de-smogged system.
In short =>
Remove:
Cat
EGR valve, cooler and associated vacuum valves and hoses
Air injection (you can remove the vanes inside the pump to allow it to act as an idler; use 1/4 NPT caps on the injector ports)
Keep:
Emissions computer
High Altitude Compensator
Vapor collector system
Cold operation valve on the air cleaner
The key is to know what you are removing. I've seen people just start pulling things off and ended up removing non-smog equipment (such as A/C high idle controller).
HTH
__________________
1986 V8J60
There's a feeling I get, when I look to the West...
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11-30-04, 04:02 PM
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#9 (permalink)
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Forum Lifer
Join Date: Jun 2003
Posts: 2,810
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Joe, are you on the pipe again?
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12-01-04, 09:04 AM
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#10 (permalink)
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Forum Regular
Join Date: Jul 2004
Location: Leesburg, GA
Posts: 110
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David,
This one was dug up from back in March!!!!!
__________________
Leesburg, GA
78 FJ40....On going project!
WWBD
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12-01-04, 05:10 PM
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#11 (permalink)
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Forum Lifer
Join Date: Jun 2003
Posts: 2,810
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That does not mean Joe is not on the pipe again
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12-01-04, 08:25 PM
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#12 (permalink)
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Forum Regular
Join Date: Jan 2004
Location: Hawkinsville, GA
Posts: 163
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No, I'm not on the pipe at the present time. I did, however, indirectly remove all my smog equipment. Can't tell you yet if it has helped.
__________________
1988 fj-62 undergoing 5.3 conversion, OME lift
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08-18-05, 01:00 PM
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#13 (permalink)
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250+ Club
Join Date: Dec 2004
Location: Manitoba, Canada
Posts: 260
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Hey Cruiser Greg, would you be able to put a link directly to the diagram of remving smog equip??? thanx
__________________
1983 Fj60 - off roader
1999 HZJ75 - project
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08-19-05, 05:18 PM
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#14 (permalink)
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Gobble Gobble Wut?
Join Date: Feb 2005
Location: Next to da mashed potatoes
Posts: 2,051
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Quote:
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Originally Posted by Cruiserdrew
Don't do it. Removing smog equiptment usually does more harm than good. You have fuel injection so there isn't that much "smog stuff". If you remove the smog, you will spend a lifetime of headache chasing all the problems that it will generate. For instance, if you remove the EGR, it will tend to ping under load. Do you really want that for the next 10 years? Even if you remove the EGR and the air injection, at most you will add 5 hp which of course makes no difference. Unfortunately, Bubba's first response is always to remove the smog stuff but in this case it's the wrong place to go. If you are looking for better performance, get a Vortec conversion.
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I haven't had a single problem since I desmogged my rig. I did it bit by bit as I wasn't sure what results I would get, but now that it's all done, it's great. freed up a little bit of power, and gave me alot more real estate under the hood. I've had no pinging even under the heaviest loads I put on my engine (full throttle from a complete stop to keep assholes from cutting me off  ), but I also am very anal about keeping my engine tuned and in the best shape possible. I also burn 87 octane gas.
Dawgdaze, if you're curious to what all is involved in desmogging an FJ62, I made a guide that's in the tech section of the site. Cruiserdrew is right that you won't free up much power, especially because of the automatic transmission, but you'll get a noticable amount. I really noticed it when climbing long hills on the freeway. Take a look at the guide and then decide if you want to do that much work (or rather, have that much work done).
__________________
'88 FJ62 W/ 253K miles, desmogged, stock SUA W/ full length Add-A-Leafs, Tuffy console, LED interior lighting, Mallory ignition, Ford Contour electric fan, four wheel discs, Aussie sliding windows
Don't cry like a bitch when you feel the pain...
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08-19-05, 06:49 PM
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#15 (permalink)
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250+ Club
Join Date: Dec 2002
Posts: 353
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No problems after desmog here either. I removed just about everything related to smog.
CB
__________________
Chris
SOA '87 FJ60, desmogged, Marlin Crawlers hi-steer, self-built roof rack w/ tire carrier, FJ62 mirrors, 35x12.50x15 BFG MTs, 15x8 Rockcrawlers.
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01-26-06, 09:10 PM
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#16 (permalink)
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Forum Lifer
Join Date: Sep 2003
Location: North Florida
Posts: 7,090
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I just want to remove the ATF soaked Smog pump with an idler. thats it, How will the negativly effect the 2f. I guess it is safe to say I also plug the air rail ports too. But all and all thats all I would like to remove.
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01-27-06, 04:51 AM
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#17 (permalink)
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Forum Lifer
Join Date: Sep 2003
Location: North Florida
Posts: 7,090
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I tryed searching but had a hard time of just finding the effects of what just removing the smog pump would do.
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01-27-06, 09:46 AM
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#18 (permalink)
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250+ Club
Join Date: Nov 2004
Posts: 800
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Yo Al,
I gutted smog pump; it's a 15 pound idler....
1/4 inch NPT brass pipe plugs where air rail used to be.
removed little rubber hoses associated with smog pump air flow & EGR control; capeed 'little pipes' with vac. fitting caps (from local auto parts store).
did this quite a number of 10s of thousands of miles ago....
Seems to run OK fine . . .
__________________
Nov 85 FJ60 94 FZJ80
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01-27-06, 02:45 PM
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#19 (permalink)
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Forum Lifer
Join Date: Sep 2003
Location: North Florida
Posts: 7,090
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"Ok fine" as in better or worse before you did this. I would really like to see no change in performance from this just one less 24 year old part that could fail. Sent the money out for a TLC idler already.
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01-27-06, 10:41 PM
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#20 (permalink)
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250+ Club
Join Date: Sep 2004
Location: San Clemente, CA
Posts: 600
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I had most of the smog components removed and installed SOR headers. I need to get the carb rebuilt but I will tell you this. I can feel a dramatic increase in power, cruse at 75mph at 3200 rpms and I get about 40 more miles to the tank. I now get around 270 on the highway. and I now have a H55 and cruise at 80 at 2800 rpms
__________________
84' tan, fj60, "TOMBI"
CURRENLY: Close Protection/PSD Helmand Afghanistan,
NORMALY: SOCAL
Chris/Andrea Manella TLCA# 14563
84,000 miles,Desmoged,OME HD 2.5,Dual Arm 4x4 Labs Rear with 3 can carrier,SROR Sliders, HD MAF Rear Sway Bar, Snorkle,H55H,32x11.5x15,Mean Green,Tuffy Box
Last edited by boerboel313; 01-30-07 at 12:33 PM.
Reason: correction
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01-28-06, 01:09 PM
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#21 (permalink)
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250+ Club
Join Date: Jun 2005
Posts: 581
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"I get about 40 more miles to the gal." quote from Boerboel313
Wow, 40 more miles to the gallon, where do I sign up? 5 hours of work removing smog crap to get 5 times the MPG!!!
We could put the Prius out of business.
Hodag
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01-28-06, 02:24 PM
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#22 (permalink)
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Forum Regular
Join Date: Oct 2005
Location: Oregon
Posts: 218
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Quote:
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Originally Posted by boerboel313
I can feel a dramatic increase in power, cruse at 75mph at 3200 rpms and I get about 40 more miles to the gal. I now get around 260 on the highway.
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Are you sure that not 40 gal to the mile.
__________________
1987 FJ60 2F, H55f, 4.11 difs, ARB rear, OME Dakar, 33 x 12.50 and Tuffy console.
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01-28-06, 04:39 PM
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#23 (permalink)
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always broke
Join Date: Feb 2005
Location: Albemarle NC
Posts: 4,357
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maybe he meant 40 gal. per fill up?
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01-28-06, 11:35 PM
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#24 (permalink)
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Forum Regular
Join Date: Jun 2005
Location: Las Vegas, Nevada
Posts: 20
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What year & make cruiser? I may be interested in purchasing your smog stuff...
VegasMike
__________________
Say what you mean, but mean what you say...
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02-04-06, 06:24 PM
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#25 (permalink)
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Rookie
Join Date: Feb 2005
Posts: 1
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How would making the smog pump an idler (remove vanes) affect smog testing results for CA? Would it fail CA smog test?
Last edited by scrounger13; 02-09-06 at 06:31 PM.
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02-05-06, 04:17 PM
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#26 (permalink)
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Site Addict
Join Date: Feb 2006
Location: SoCal
Posts: 2,122
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scap it
Pre v-8 I had pulled of al the smog and it made a big difference in drivability. Air pump Idler trick was the same thing I did
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02-06-06, 12:38 PM
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#27 (permalink)
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Forum Regular
Join Date: Jul 2004
Location: Miami, FL
Posts: 106
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de-smog even further
I have been thinking of doing the complete removal of smog equipment, I already have a gutted smog/air pump because it is the vanes in fact that siezed up. However, the old link to the tech section does not work does someone have a good list of what needs to be removed and plugged or connected in a different way to complete the process. My concern is the carbon build up leaving a gutted pump only. It's an 87 FJ60 by the way. Cheers all.
__________________
Sergio H
87FJ 60
Miami, FL
3 boys,redheaded wife, kayaking and a Bruiser what a life!
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02-06-06, 04:57 PM
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#28 (permalink)
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always broke
Join Date: Feb 2005
Location: Albemarle NC
Posts: 4,357
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Look at the writeup a few posts from the bottom, follow that to a T but not changing the belt/removing the air pump.
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09-08-06, 10:05 AM
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#29 (permalink)
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Site Addict
Join Date: Jul 2006
Location: North, AL
Posts: 1,718
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Quote:
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Originally Posted by Spook50
I haven't had a single problem since I desmogged my rig. I did it bit by bit as I wasn't sure what results I would get, but now that it's all done, it's great. freed up a little bit of power, and gave me alot more real estate under the hood. I've had no pinging even under the heaviest loads I put on my engine (full throttle from a complete stop to keep assholes from cutting me off  ), but I also am very anal about keeping my engine tuned and in the best shape possible. I also burn 87 octane gas.
Dawgdaze, if you're curious to what all is involved in desmogging an FJ62, I made a guide that's in the tech section of the site. Cruiserdrew is right that you won't free up much power, especially because of the automatic transmission, but you'll get a noticable amount. I really noticed it when climbing long hills on the freeway. Take a look at the guide and then decide if you want to do that much work (or rather, have that much work done).
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where is this de-smog guide?
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09-08-06, 10:26 AM
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#30 (permalink)
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Forum Lifer
Join Date: Feb 2006
Posts: 9,484
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i desmogged my 62 and it helped alot  of course most of my smog stuff did not function anyway.BUTnot really no mpg difference.maybe a little.but there was a little more power.and there was no extra pinging.my biggest advantage was more room less shit to brake down,good for me living in a non smog law state.
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