From owner-xj-digest-at-digest.net Tue Jul 15 08:15:43 2008 From: xj-digest xj-digest Tuesday, July 15 2008 Volume 01 : Number 2832 Forum for Discussion of XJ cherokees and wagoneers Brian Colucci Digest Coordinator Contents: RE: xj: Failing Smog, Need Help Big Time... Re: xj: Name That Vacuum Line xj: RE: fsj: adventures with bioDiesel xj: RE: fsj: adventures with bioDiesel Re: xj: Failing Smog, Need Help Big Time... Re: xj: Failing Smog, Need Help Big Time... XJ Digest Home Page: http://www.digest.net/jeep/xj/ Send submissions to xj-digest-at-digest.net Send administrative requests to xj-digest-request-at-digest.net To unsubscribe, include the word unsubscribe by itself in the body of the message, unless you are sending the request from a different address than the one that appears on the list. Include the word help in a message to xj-digest-request to get a list of other majordomo commands. ---------------------------------------------------------------------- Date: Tue, 15 Jul 2008 06:54:38 -0700 From: Jim Blair Subject: RE: xj: Failing Smog, Need Help Big Time... High carbon mono comes from a couple things. Wrong spark plugs is a big one (Especially Bosch in these for some reason). I put in NGK 2288s (BKR6EK) and lowered mine drastically (My EGR quit functioning a long time ago and this is how I keep the ping monster away to run regular fuel. '91 up don't have an EGR which cuts NOx) I also passed with the equivalent to '96 emission levels without a cat. The other setup is having the computer programmed for low altitude running (the high alt program, mostly used in mountain states and around Tahoe in CA advances timing to make power in the thinner air) You can also slot the CPS (crank position sensor) and retard it slightly. If the dist is 1 notch of, it will throw things off too (aftermarket cams often require grinding off the locking tab so it can be manually adjusted) Vacuum leaks can cause a lean condition too, which makes NOx go up. Cracked fuel vapor cannister is often overlooked in the checks as well. You could also join the strokers-at-yahoogroups.com list (we build bigger 6 cyls AND get them past even CARB testing) and learn LOTS about the reprogramming of these computers. We even have a Renixpower list for the '87 to 08/90 rigs. From: "Secure Messenger" Subject: xj: Failing Smog, Need Help Big Time... I have one of the most-butt-kicking great 92 Cherokee Laredos ever^E Nice lift, white w/black, excellently maintained for 244,000 miles and still doesn't burn oil. Warn 9500, winch, water supply, air supply, all sorts of goodies, and just back from saving my place in Big Sur from burning to the ground, my Jeep saved my butt and those of several others by running like a top up and down the mountain for eight days straight. I have fifteen days left to smog it, and I've been trying for a month now. I can't get the NOX number down below 1,900, even though I've replaced the O2 sensor, the catalytic converter, the muffler, and run 2 quarts of injector cleaner through the gas tank in the last 1,000 miles. I've been told that the older 4.0 fuel injected engines can be really difficult to pass. Does anyone have some really good ideas? Thanks, Michael Minasian _________________________________________________________________ Use video conversation to talk face-to-face with Windows Live Messenger. http://www.windowslive.com/messenger/connect_your_way.html?ocid=TXT_TAGLM_WL_ Refresh_messenger_video_072008 ------------------------------ Date: Tue, 15 Jul 2008 07:01:29 -0700 From: Jim Blair Subject: Re: xj: Name That Vacuum Line Could be the vent drain line from the AC as well. Tom may have the diagram up on http://oljeep.com From: JeepNut Subject: Re: xj: Name That Vacuum Line Admiral I've got some .pdf files showing vacuum on the motor, etc. Happy to share any and all, but the list will strip 'em... Just back in from lookin' under the hood on my '92. (FSM is in the tool trailer at my parent's house) One of those vacuum lines from above the H block should loop around into a vac valve (white side toward firewall/black toward manifold) on its way over to the rear most port of the intake manifold. Into the manifold on a 90 by itself, no T's... The other one should go to a vac pot which is part of a heater valve assembly there on the right side of the engine. This one has a 90 on it. Directly above the oil filter. All the smaller heater hoses run through this contraption. I'm guessing this is the missing link... JeepNut _________________________________________________________________ It^Rs a talkathon ^V but it^Rs not just talk. http://www.imtalkathon.com/?source=EML_WLH_Talkathon_JustTalk ------------------------------ Date: Tue, 15 Jul 2008 07:31:28 -0700 From: Jim Blair Subject: xj: RE: fsj: adventures with bioDiesel As I just mentioned in another thread, last night someone lost their fuel line coming down hwy 2 from -at-Skykomish to just before Gold Bar (truck quit on the uphill/bridge just before town where there is no place to pull off or back up) I was probably third in line behind him. Traffic would back up past the road to my place in a big hurry usually when that stuff happens. Sunday night traffic was backed up from Monroe to Startup because a truck swerved into the ditch rather than hit some idiot that illegally crossed the double centerline to pass headed the other way. I just nudged the '82 Spirit up behind his trailer and said "Let's try it". Was I ever glad I had just replaced the RH motor mount just before that! (PO to Brian who put the motor in left ALL the bolts loose, including the driveshaft Ubolts) I punctured my oil filter friday due to the sloppy motor mount (which reminds me I need to recheck my oil) I had just enough oomph to get him over the top before my motor hit the high temp line and he rolled down to Reiter road to the shoulder. Line before the fuel pump was ruptured for whatever reason, but I gave him my spare fuel filter (my gas tank was full of rust so I carry 2 spares) and he got under way in just a couple minutes by switching tanks. (I think I made a friend for life. LOL!) Funny part is, this is the second time someone has been stuck on the same bridge just as I happen to be going by. (last time I was driving the Comanche and I smoked what was left of my clutch pushing him over it) Jim Blair, Lynnwood, WA '87 Comanche, '83 Jeep J10, '84 Jeep J10 > Date: Mon, 14 Jul 2008 17:11:42 -0700 > From: john-at-wagoneers.com > To: xj-at-digest.net > CC: fsj-at-digest.net; diesel-benz-at-digest.net > Subject: fsj: adventures with bioDiesel > > On Mon, 14 Jul 2008, ernest breakfield wrote: > # i've found this 'concern' over BioD affecting fuel lines to be highly > (rest of the thread below...) > > > it's a real concern for me... with dual tanks and yards of fuel line... :) > > my first trouble came on my '91 300D... had to replace all the high pressure > seal o-rings... then the fuel heater o-ring in line, after that it's been fine. > > on my 6.2L Diesel I've replaced the section of rubber line from > the primary filter to the lift pump three times now... and the short rubber > section to the return line to the tank once... > > AND, the fuel cutoff solenoid... > > It might not bother a 240D, a masterpiece of simplicity and elegance, but > it sure as heck bothers the rest of the Diesels. ;) (My son's '85 300D > seems to be ok with the little bit he's run through his... so far.) > > > but, I concur with you, no need to worry until the fuel is dripping or > things seize up... no point in fixing something that ain't broke. ;) > > john > > ----- > ------------------------------------------------------------------------- > Snohomish, Washington -o|||||o- where Jeeps don't rust, they mold > http://wagoneers.com john's 6.2L GW: http://wagoneers.com/FSJ/Omega/ > SAVE FUEL use AMSOIL Synthetics: http://wagoneers.com/AMSOIL > ------------------------------------------------------------------------- > > > On Mon, 14 Jul 2008, ernest breakfield wrote: > # i've found this 'concern' over BioD affecting fuel lines to be highly > # overstated; 50+K miles on almost exclusively BioDiesel over the last 4.5 > # years in the old 300D, and we're still looking for any hint of a reason > # to replace them. (i watch them like i would any fuel line in any 20+ > # year old vehicle, but i have no idea how old they were when i got the > # car, either,...) > # many people here in the fleet where i buy my BioD have had the same > # experience after a few million collective miles on B100; and since fuel > # line failure isn't catastrophic (but is preceded by much advance > # warning), i'd say don't worry about it until you have an indication that > # there's a need for it. > # > # > # cheers! > # e > # > # > # Jim Blair wrote: > # > I was checking into fuel lines for Biodiesel. Found out they need to be > # > different from regular diesel hoses. Napa doesn't carry anything correct for > # > it, but they are looking into it. > # > > # > Jim Blair, Lynnwood, WA '87 Comanche, '83 Jeep J10, '84 Jeep J10 > # > > # > > # > > # >> Date: Sun, 13 Jul 2008 21:20:53 -0700 > # >> From: john-at-wagoneers.com > # >> To: > # >> Subject: fsj: adventures with Diesel and other pictures > # >> > # >> spent Saturday morning replacing the fuel shutoff solenoid > # >> on my 6.2L Diesel... doing much better... (replaced the fuel > # >> line Thurs eve, still need to get Viton or similar to deal > # >> with BioDiesel)... > # >> > # >> pictures of the process, and possible location for fuel heater, > # >> and just some nice pix of the GW. > # >> > # >> http://wagoneers.com/FSJ/Omega/FuelSolenoid-12July2008/ > # >> > # >> Then, Saturday evening, I replaced the window regulator in the > # >> driver's door of the '91 300D (124 series). Not nearly as easy, > # >> or as much fun as the Injection pump work. ;) > # >> > # >> http://wagoneers.com/DieselBenz/TECH/124-series/WindowRegulator/ > # >> > # >> other pictures: > # >> > # >> http://wagoneers.com/fotos/2008/07-Jul-12-Snohomish-Omega/ > # >> > # >> john > # _________________________________________________________________ Use video conversation to talk face-to-face with Windows Live Messenger. http://www.windowslive.com/messenger/connect_your_way.html?ocid=TXT_TAGLM_WL_ Refresh_messenger_video_072008 ------------------------------ Date: Tue, 15 Jul 2008 07:54:53 -0700 (PDT) From: john Subject: xj: RE: fsj: adventures with bioDiesel try pulling with a strap... it's better than pushing... sounds like the same problem I've been having with the rubber line going into the lift pump... :) ----- - ------------------------------------------------------------------------- Snohomish, Washington -o|||||o- where Jeeps don't rust, they mold http://wagoneers.com john's 6.2L GW: http://wagoneers.com/FSJ/Omega/ SAVE FUEL use AMSOIL Synthetics: http://wagoneers.com/AMSOIL - ------------------------------------------------------------------------- On Tue, 15 Jul 2008, Jim Blair wrote: # # As I just mentioned in another thread, last night someone lost their fuel line coming down hwy 2 from -at-Skykomish to just before Gold Bar (truck quit on the uphill/bridge just before town where there is no place to pull off or back up) I was probably third in line behind him. Traffic would back up past the road to my place in a big hurry usually when that stuff happens. Sunday night traffic was backed up from Monroe to Startup because a truck swerved into the ditch rather than hit some idiot that illegally crossed the double centerline to pass headed the other way. # I just nudged the '82 Spirit up behind his trailer and said "Let's try it". Was I ever glad I had just replaced the RH motor mount just before that! (PO to Brian who put the motor in left ALL the bolts loose, including the driveshaft Ubolts) I punctured my oil filter friday due to the sloppy motor mount (which reminds me I need to recheck my oil) # I had just enough oomph to get him over the top before my motor hit the high temp line and he rolled down to Reiter road to the shoulder. Line before the fuel pump was ruptured for whatever reason, but I gave him my spare fuel filter (my gas tank was full of rust so I carry 2 spares) and he got under way in just a couple minutes by switching tanks. (I think I made a friend for life. LOL!) # Funny part is, this is the second time someone has been stuck on the same bridge just as I happen to be going by. (last time I was driving the Comanche and I smoked what was left of my clutch pushing him over it) # # Jim Blair, Lynnwood, WA '87 Comanche, '83 Jeep J10, '84 Jeep J10 # # # > Date: Mon, 14 Jul 2008 17:11:42 -0700 # > From: john-at-wagoneers.com # > To: xj-at-digest.net # > CC: fsj-at-digest.net; diesel-benz-at-digest.net # > Subject: fsj: adventures with bioDiesel # > # > On Mon, 14 Jul 2008, ernest breakfield wrote: # > # i've found this 'concern' over BioD affecting fuel lines to be highly # > (rest of the thread below...) # > # > # > it's a real concern for me... with dual tanks and yards of fuel line... :) # > # > my first trouble came on my '91 300D... had to replace all the high pressure # > seal o-rings... then the fuel heater o-ring in line, after that it's been fine. # > # > on my 6.2L Diesel I've replaced the section of rubber line from # > the primary filter to the lift pump three times now... and the short rubber # > section to the return line to the tank once... # > # > AND, the fuel cutoff solenoid... # > # > It might not bother a 240D, a masterpiece of simplicity and elegance, but # > it sure as heck bothers the rest of the Diesels. ;) (My son's '85 300D # > seems to be ok with the little bit he's run through his... so far.) # > # > # > but, I concur with you, no need to worry until the fuel is dripping or # > things seize up... no point in fixing something that ain't broke. ;) # > # > john # > # > ----- # > ------------------------------------------------------------------------- # > Snohomish, Washington -o|||||o- where Jeeps don't rust, they mold # > http://wagoneers.com john's 6.2L GW: http://wagoneers.com/FSJ/Omega/ # > SAVE FUEL use AMSOIL Synthetics: http://wagoneers.com/AMSOIL # > ------------------------------------------------------------------------- # > # > # > On Mon, 14 Jul 2008, ernest breakfield wrote: # > # i've found this 'concern' over BioD affecting fuel lines to be highly # > # overstated; 50+K miles on almost exclusively BioDiesel over the last 4.5 # > # years in the old 300D, and we're still looking for any hint of a reason # > # to replace them. (i watch them like i would any fuel line in any 20+ # > # year old vehicle, but i have no idea how old they were when i got the # > # car, either,...) # > # many people here in the fleet where i buy my BioD have had the same # > # experience after a few million collective miles on B100; and since fuel # > # line failure isn't catastrophic (but is preceded by much advance # > # warning), i'd say don't worry about it until you have an indication that # > # there's a need for it. # > # # > # # > # cheers! # > # e # > # # > # # > # Jim Blair wrote: # > # > I was checking into fuel lines for Biodiesel. Found out they need to be # > # > different from regular diesel hoses. Napa doesn't carry anything correct for # > # > it, but they are looking into it. # > # > # > # > Jim Blair, Lynnwood, WA '87 Comanche, '83 Jeep J10, '84 Jeep J10 # > # > # > # > # > # > # > # >> Date: Sun, 13 Jul 2008 21:20:53 -0700 # > # >> From: john-at-wagoneers.com # > # >> To: # > # >> Subject: fsj: adventures with Diesel and other pictures # > # >> # > # >> spent Saturday morning replacing the fuel shutoff solenoid # > # >> on my 6.2L Diesel... doing much better... (replaced the fuel # > # >> line Thurs eve, still need to get Viton or similar to deal # > # >> with BioDiesel)... # > # >> # > # >> pictures of the process, and possible location for fuel heater, # > # >> and just some nice pix of the GW. # > # >> # > # >> http://wagoneers.com/FSJ/Omega/FuelSolenoid-12July2008/ # > # >> # > # >> Then, Saturday evening, I replaced the window regulator in the # > # >> driver's door of the '91 300D (124 series). Not nearly as easy, # > # >> or as much fun as the Injection pump work. ;) # > # >> # > # >> http://wagoneers.com/DieselBenz/TECH/124-series/WindowRegulator/ # > # >> # > # >> other pictures: # > # >> # > # >> http://wagoneers.com/fotos/2008/07-Jul-12-Snohomish-Omega/ # > # >> # > # >> john # > # # # _________________________________________________________________ # Use video conversation to talk face-to-face with Windows Live Messenger. # http://www.windowslive.com/messenger/connect_your_way.html?ocid=TXT_TAGLM_WL_Refresh_messenger_video_072008 ------------------------------ Date: Tue, 15 Jul 2008 08:01:56 -0700 From: ernest breakfield Subject: Re: xj: Failing Smog, Need Help Big Time... hi Michael! i'm not sure where you've been going, but the guys at 7 Day smog down on San Pablo just south of University have been real champs about helping my XJ of similar vintage passing smog, and very helpful with little tips and fixes to try to keep things going that way. i'd highly recommend them. in my case, i've run synthetics in it for more than 200K miles and it's been fed a diet of primarily Chevron regular, but it's actually flipped the test computer into the quick-test loop the last couple of times i had to have it smogged. i've also found after experimenting with many different types that it seems to be happiest with the simplest of plugs; i use Mopar Performance wires/cap/rotor, but now just plain old Autolite plugs. i'd second the recommendation that you might want to try fresh plugs. cheers! e Secure Messenger wrote: > I have one of the most-butt-kicking great 92 Cherokee Laredos ever^E > > Nice lift, white w/black, excellently maintained for 244,000 miles and still > doesn't burn oil. > > Warn 9500, winch, water supply, air supply, all sorts of goodies, and just > back from saving my place in Big Sur from burning to the ground, my Jeep > saved my butt and those of several others by running like a top up and down > the mountain for eight days straight. > > I have fifteen days left to smog it, and I've been trying for a month now. > > I can't get the NOX number down below 1,900, even though I've replaced the > O2 sensor, the catalytic converter, the muffler, and run 2 quarts of > injector cleaner through the gas tank in the last 1,000 miles. > > I've been told that the older 4.0 fuel injected engines can be really > difficult to pass. > > Does anyone have some really good ideas? > > Thanks, > > Michael Minasian > PO Box 14911 > Berkeley, California 94712-5911 > Tel: 510-845-0110 > Fax: 510-845-0101 > Email: minasian-at-cal.berkeley.edu > IM: secure.messenger-at-yahoo.com ------------------------------ Date: Tue, 15 Jul 2008 08:01:56 -0700 From: ernest breakfield Subject: Re: xj: Failing Smog, Need Help Big Time... hi Michael! i'm not sure where you've been going, but the guys at 7 Day smog down on San Pablo just south of University have been real champs about helping my XJ of similar vintage passing smog, and very helpful with little tips and fixes to try to keep things going that way. i'd highly recommend them. in my case, i've run synthetics in it for more than 200K miles and it's been fed a diet of primarily Chevron regular, but it's actually flipped the test computer into the quick-test loop the last couple of times i had to have it smogged. i've also found after experimenting with many different types that it seems to be happiest with the simplest of plugs; i use Mopar Performance wires/cap/rotor, but now just plain old Autolite plugs. i'd second the recommendation that you might want to try fresh plugs. cheers! e Secure Messenger wrote: > I have one of the most-butt-kicking great 92 Cherokee Laredos ever^E > > Nice lift, white w/black, excellently maintained for 244,000 miles and still > doesn't burn oil. > > Warn 9500, winch, water supply, air supply, all sorts of goodies, and just > back from saving my place in Big Sur from burning to the ground, my Jeep > saved my butt and those of several others by running like a top up and down > the mountain for eight days straight. > > I have fifteen days left to smog it, and I've been trying for a month now. > > I can't get the NOX number down below 1,900, even though I've replaced the > O2 sensor, the catalytic converter, the muffler, and run 2 quarts of > injector cleaner through the gas tank in the last 1,000 miles. > > I've been told that the older 4.0 fuel injected engines can be really > difficult to pass. > > Does anyone have some really good ideas? > > Thanks, > > Michael Minasian > PO Box 14911 > Berkeley, California 94712-5911 > Tel: 510-845-0110 > Fax: 510-845-0101 > Email: minasian-at-cal.berkeley.edu > IM: secure.messenger-at-yahoo.com ------------------------------ End of xj-digest V1 #2832 *************************