From owner-fsj-digest-at-digest.net Mon Dec 29 22:30:54 2008 From: fsj-digest fsj-digest Tuesday, December 30 2008 Volume 01 : Number 3235 Forum for Discussion of Full Sized SJ Series Jeeps Brian Colucci Digest Coordinator Contents: fsj: reality, popcorn, and project escalation/reduction... fsj: slight but persistant vibration RE: fsj: slight but persistant vibration fsj: J10 Nearby fsj: RE: slight but persistant vibration RE: fsj: J10 Nearby RE: fsj: slight but persistant vibration Re: fsj: J10 Nearby RE: fsj: slight but persistant vibration FSJ Digest Home Page: http://www.digest.net/jeeps/fsj/ Send submissions to fsj-digest-at-digest.net Send administrative requests to fsj-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 fsj-digest-request to get a list of other majordomo commands. ---------------------------------------------------------------------- Date: Sun, 28 Dec 2008 22:53:32 -0800 (PST) From: john Subject: fsj: reality, popcorn, and project escalation/reduction... reality hit home again... sure, it comes and goes... right now it's visiting... ;) maybe only briefly... got the cj-10a apart and realized what a can of worms I'm opening up. :) WHAT am I doing? We found that chunk of steel... practically destroyed the carport getting the bed off of the cj-10a... that thing is NOT light... Then I realize I need gas for my torch, then it'll need a pair of axles, a custom driveshaft, a shift lever for the xfr case... and then a bed... most likely will need to extend the frame... fenders... lights, and of course the emissions test... ;) Sure, leave me alone long enough with tools and a vehicle and things start to happen... hence the dismantling of the cj-10a last night during the thaw. :) But I have too many projects and I have to ask myself, WHAT AM I DOING? Sure, y'all have been asking that question for a long time... but now I am. :) So, we're going to put the bed back on it, more or less... and sell the cj-10a... it's a cute little rig, but I need to "focus"... the cj-10a would be a blast for about two trips to town... The thing that scares me the most about it is the fact that it's a forklift engine... I think I'm spoiled by my Mercedes... ;) So, I just need to get my '83 J10 home and get it running... have a buyer for my J10 dump trailer so I think I'm going to use the engine and axles out of the '80 for my '83 and build one nice J10... sure, it'll be a gas rig for now, but maybe some day it'll sport a Diesel. At least it'll be a working vehicle and together... affordable to drive as is... I will probably build a nice, lighter weight trailer out of the remains of '80 J10... will have all the parts to do that... with the J10 I won't need it, but will have it ready to go... just need to wire up my welder... ;) The cj-10a is for sale on CL... the blazer will be getting a quieter muffler, it just does everything I need it to do... family, friends and so on keep telling me so... so I might as well make it nice... despite the fact that it has a vastly inferior 4x4 system... it was snowbound much of this snow event... the WJ was the absolute champ... The Blazer could benefit from a set of real hubs and a real transfer case... shifting into 4wd takes too long, causes an embarrassing pause in ice/snow filled intersections. :) Maybe some kind of limited slip system... nah... next big snow storm we'll just use the Jeep. :) oh yeah, my son and I are moving forward with putting his Ford 460 into the '67 J100 panel, we picked up a C6/NP205 this afternoon... just need a newer front axle for the wag and commence building it up... long term project... he wants to use the 3.07 gears, will put in lockers and keep the 35's... will be pretty cool when it's done actually... I think it'll be a workable idea, with those gears and all that weight it will not be fast. Anyone interested in a rust free '74 Javelin body that has a few dents and no interior to speak of? :) also need to find a home for the 232 I-6 coming out of the Panel before my son tries to put that in the Javelin along with the T-85 and Dana 20 xfr case... :) Decided to sell my toughbook CF-W5 and keep the T-5... ordered a new 250GB IDE drive for the T-5... these little toughbooks are really nice... also planning on upgrading to a Nikon D300 from my D200... let me know if you're interested in either... I even briefly considered putting that 3.3L Diesel / TF727 into a Cherokee, found two with bad engines for cheap... "focus"... :) keep repeating that... but it's hard... :) out of control, but having fun... enjoy your popcorn, john ----- - ------------------------------------------------------------------------ Snohomish, Washington -o|||||o- where Jeeps don't rust, they mold http://johnmeister.com/fotomeister - Trust Jesus: http://freegift.com SAVE power, avoid viruses, use LINUX: http://johnmeister.com/tmcp.pdf SAVE fuel, use synthetics: http://AMSOIL.com/redirect.cgi?zo=283461 - ------------------------------------------------------------------------ ------------------------------ Date: Tue, 30 Dec 2008 02:50:49 +0000 From: Michel Balea Subject: fsj: slight but persistant vibration a bit long... but I have tried most of everything. 74 waggy w 341kmiles on original trany/engine. 2 barrel 2100 and HEI distributor w fresh cap/rotor coil from a few months ago, yes they have copper terminals, and the wires are 8mm taylor from last year, w the normal resistance. A few weeks ago a small but persistant vibration has developped on the freeway on a 50 mile return trip.... strong enough to loosen one's filling and feelings about not beeing able to fix it. It happens in Park, in Neutral and less in gear at idle as the idle is lower, but at speed it is happening. There is not a real relation to the engine speed it happens and stay constant. It feels like a misfire: but idle is steady, vacuum is 20 inches at sea level with an idle of 800 rpm in Park 1) I swapped a spare duraspark distributor w its set of wires and an old MSD box. No difference. 2) Disconnected all belts: water pump, alternator, PS, and AIR pump. No difference 3) Plugged all vacuum lines including Brake booster, Transmission modulator, Transfer case, heater control, EGR. distributor advance at the CTO switch (hummmm, now that I am writing it, may be the switch is bad! Probably not because it starts without a problem even during our cold weather of 40 degrees). No Changes. 4) Sprayed brake cleaner all over the carb area, no change in idle speed. 5) Recheck voltage at distributor (+) feed: 13.8 volts. Ground is good 0.01 ohm from engine ground to coil ground. Disconnected various accessories thinking that may be there is a short (voltmeter, tachometer). 6) Some have suggested bad engine/trany mounts: disconnected the trany selector at the frame and tried to Jack up the engine.... the body is going up, but no separation from engine or trany mounts. I have tried this a few times after Moab last year when the fan hit the shroud, but was never able to show a loose engine mount, I even went to bug some good Jeep aficionados.... and we could not see a failing mount. So after reading all these, I need some ideas. And for the added bonus hint: 2 weeks ago after a junk yard hunt.... I never made it after 80 miles, there was 2 hesitations while driving at 65 mph and I freewheelled to the shoulder (at least I was 12 miles from home)... had to have the waggy towed: before calling AAA I checked for spark (connected a spare spark plug and hotwired the ignition switch, and fuel while depressing the throttle the gas flew off).... 30 minutes later in the driveway, I wiped the inside of the distributor... the rotor was a tad burnt but nothing terrible, I cranked the engine and it started. I have not driven too far. Did a few repeats of the above. Happy new year Michel _________________________________________________________________ Send e-mail faster without improving your typing skills. http://windowslive.com/online/hotmail?ocid=TXT_TAGLM_WL_hotmail_acq_speed_122 008 ------------------------------ Date: Mon, 29 Dec 2008 20:11:16 -0800 From: Jim Blair Subject: RE: fsj: slight but persistant vibration Sounds like my ex GF's Pacer when the Gold box went south. It started messing with engine timing. If you still have points (can't recall if you had points or did a Pertronix swap) the dist bushings may be bad. If a lobe is gone, spark will hit and miss. Jim Blair, Lynnwood, WA '87 Comanche, '83 Jeep J10, '84 Jeep J10 > From: mbalea-at-hotmail.com > To: fsj-at-digest.net > Subject: fsj: slight but persistant vibration > Date: Tue, 30 Dec 2008 02:50:49 +0000 > > a bit long... but I have tried most of everything. > > 74 waggy w 341kmiles on original trany/engine. 2 barrel 2100 and HEI > distributor w fresh cap/rotor coil from a few months ago, yes they have copper > terminals, and the wires are 8mm taylor from last year, w the normal > resistance. > > A few weeks ago a small but persistant vibration has developped on the freeway > on a 50 mile return trip.... strong enough to loosen one's filling and > feelings about not beeing able to fix it. It happens in Park, in Neutral and > less in gear at idle as the idle is lower, but at speed it is happening. There > is not a real relation to the engine speed it happens and stay constant. > > It feels like a misfire: but idle is steady, vacuum is 20 inches at sea level > with an idle of 800 rpm in Park > > 1) I swapped a spare duraspark distributor w its set of wires and an old MSD > box. No difference. > > 2) Disconnected all belts: water pump, alternator, PS, and AIR pump. No > difference > > 3) Plugged all vacuum lines including Brake booster, Transmission modulator, > Transfer case, heater control, EGR. distributor advance at the CTO switch > (hummmm, now that I am writing it, may be the switch is bad! Probably not > because it starts without a problem even during our cold weather of 40 > degrees). No Changes. > > 4) Sprayed brake cleaner all over the carb area, no change in idle speed. > > 5) Recheck voltage at distributor (+) feed: 13.8 volts. Ground is good 0.01 > ohm from engine ground to coil ground. Disconnected various accessories > thinking that may be there is a short (voltmeter, tachometer). > > 6) Some have suggested bad engine/trany mounts: disconnected the trany > selector at the frame and tried to Jack up the engine.... the body is going > up, but no separation from engine or trany mounts. I have tried this a few > times after Moab last year when the fan hit the shroud, but was never able to > show a loose engine mount, I even went to bug some good Jeep aficionados.... > and we could not see a failing mount. > > So after reading all these, I need some ideas. > > And for the added bonus hint: 2 weeks ago after a junk yard hunt.... I never > made it after 80 miles, there was 2 hesitations while driving at 65 mph and I > freewheelled to the shoulder (at least I was 12 miles from home)... had to > have the waggy towed: before calling AAA I checked for spark (connected a > spare spark plug and hotwired the ignition switch, and fuel while depressing > the throttle the gas flew off).... 30 minutes later in the driveway, I wiped > the inside of the distributor... the rotor was a tad burnt but nothing > terrible, I cranked the engine and it started. I have not driven too far. Did > a few repeats of the above. > > Happy new year > > Michel > > > > _________________________________________________________________ > Send e-mail faster without improving your typing skills. > http://windowslive.com/online/hotmail?ocid=TXT_TAGLM_WL_hotmail_acq_speed_122 > 008 _________________________________________________________________ It^Rs the same Hotmail.. If by ^Ssame^T you mean up to 70% faster. http://windowslive.com/online/hotmail?ocid=TXT_TAGLM_WL_hotmail_acq_broad1_12 2008 ------------------------------ Date: Mon, 29 Dec 2008 21:41:52 -0700 From: "Tesar Landon" Subject: fsj: J10 Nearby Hey all, I found a J10 about 5 miles from my house, it may/may not be for sale, but it has the early 80's grill, dark blue, longbed, 1 flat tire, 5spd, sits kinda low, locking hubs in front, rusted bumper in back...the neatest thing is that it has a camper top over the bed, no rust on the bed seams, and the inside of the bed is CLEAN. Like freshly painted clean. I've never seen one like that. If I was to get it, I would use the bed, but want to protect it. Are there any good bedliners out there, and is this the right thing to do? I don't like the idea of a spray in liner, because it seems too permanent...interested in your thoughts. - - Landon ------------------------------ Date: Mon, 29 Dec 2008 21:46:23 -0700 From: "Tesar Landon" Subject: fsj: RE: slight but persistant vibration You may want to check for timing chain slipped a tooth. - -L - -----Original Message----- From: owner-fsj-at-digest.net [mailto:owner-fsj-at-digest.net] On Behalf Of Michel Balea Sent: Monday, December 29, 2008 8:51 PM To: fsj digest Subject: fsj: slight but persistant vibration a bit long... but I have tried most of everything. 74 waggy w 341kmiles on original trany/engine. 2 barrel 2100 and HEI distributor w fresh cap/rotor coil from a few months ago, yes they have copper terminals, and the wires are 8mm taylor from last year, w the normal resistance. A few weeks ago a small but persistant vibration has developped on the freeway on a 50 mile return trip.... strong enough to loosen one's filling and feelings about not beeing able to fix it. It happens in Park, in Neutral and less in gear at idle as the idle is lower, but at speed it is happening. There is not a real relation to the engine speed it happens and stay constant. It feels like a misfire: but idle is steady, vacuum is 20 inches at sea level with an idle of 800 rpm in Park 1) I swapped a spare duraspark distributor w its set of wires and an old MSD box. No difference. 2) Disconnected all belts: water pump, alternator, PS, and AIR pump. No difference 3) Plugged all vacuum lines including Brake booster, Transmission modulator, Transfer case, heater control, EGR. distributor advance at the CTO switch (hummmm, now that I am writing it, may be the switch is bad! Probably not because it starts without a problem even during our cold weather of 40 degrees). No Changes. 4) Sprayed brake cleaner all over the carb area, no change in idle speed. 5) Recheck voltage at distributor (+) feed: 13.8 volts. Ground is good 0.01 ohm from engine ground to coil ground. Disconnected various accessories thinking that may be there is a short (voltmeter, tachometer). 6) Some have suggested bad engine/trany mounts: disconnected the trany selector at the frame and tried to Jack up the engine.... the body is going up, but no separation from engine or trany mounts. I have tried this a few times after Moab last year when the fan hit the shroud, but was never able to show a loose engine mount, I even went to bug some good Jeep aficionados.... and we could not see a failing mount. So after reading all these, I need some ideas. And for the added bonus hint: 2 weeks ago after a junk yard hunt.... I never made it after 80 miles, there was 2 hesitations while driving at 65 mph and I freewheelled to the shoulder (at least I was 12 miles from home)... had to have the waggy towed: before calling AAA I checked for spark (connected a spare spark plug and hotwired the ignition switch, and fuel while depressing the throttle the gas flew off).... 30 minutes later in the driveway, I wiped the inside of the distributor... the rotor was a tad burnt but nothing terrible, I cranked the engine and it started. I have not driven too far. Did a few repeats of the above. Happy new year Michel _________________________________________________________________ Send e-mail faster without improving your typing skills. http://windowslive.com/online/hotmail?ocid=TXT_TAGLM_WL_hotmail_acq_spee d_122 008 ------------------------------ Date: Mon, 29 Dec 2008 20:57:54 -0800 From: Jim Blair Subject: RE: fsj: J10 Nearby Spray on is FAR superior to slip ins. The only rust in my '87 and '86 MJs is where the liner vibrated through the paint. Jim Blair, Lynnwood, WA '87 Comanche, '83 Jeep J10, '84 Jeep J10 > Subject: fsj: J10 Nearby > Date: Mon, 29 Dec 2008 21:41:52 -0700 > From: landon.tesar-at-freescale.com > To: fsj-at-digest.net > > Hey all, > > I found a J10 about 5 miles from my house, it may/may not be for sale, > but it has the early 80's grill, dark blue, longbed, 1 flat tire, 5spd, > sits kinda low, locking hubs in front, rusted bumper in back...the > neatest thing is that it has a camper top over the bed, no rust on the > bed seams, and the inside of the bed is CLEAN. Like freshly painted > clean. I've never seen one like that. If I was to get it, I would use > the bed, but want to protect it. Are there any good bedliners out > there, and is this the right thing to do? I don't like the idea of a > spray in liner, because it seems too permanent...interested in your > thoughts. > > - Landon _________________________________________________________________ Send e-mail anywhere. No map, no compass. http://windowslive.com/oneline/hotmail?ocid=TXT_TAGLM_WL_hotmail_acq_anywhere _122008 ------------------------------ Date: Tue, 30 Dec 2008 05:45:32 +0000 From: Michel Balea Subject: RE: fsj: slight but persistant vibration I have HEI now. The timing started to be inaccurate... one day it would go up steep grades wo an issue... the next afternoon, it was pinging.... so the module may be off... It is from a salvaged rigg..... so it history is unknown. The bushings are tight. So it is either the GM module or the pick up coil ..... When i pulled ea individual spark plug wires.... there was no changes in vibration except a lowering of the rpm. As for the flat lobe.... there is a random mis when listening at the exhaust... I guess I should record it and see if there is a real rhythm.... Tessar Landon suggested a jumped timing teeth.... Timing is tight, the strobe is tight on the mark. Jumping a tooth or two, I had it years ago... and it did not create a such a dramatic effect. May be I got a bad cap and rotor... I looked at the maintenance log... it was changed in February 08... so it may have gone south... after 5kmiles.... I will install the old set.. then if no changes get a new module..... Thanks for the suggestions Michel > From: carnuck-at-hotmail.com > To: mbalea-at-hotmail.com; fsj-at-digest.net > Subject: RE: fsj: slight but persistant vibration > Date: Mon, 29 Dec 2008 20:11:16 -0800 > > Sounds like my ex GF's Pacer when the Gold box went south. It started messing > with engine timing. If you still have points (can't recall if you had points > or did a Pertronix swap) the dist bushings may be bad. If a lobe is gone, > spark will hit and miss. > > Jim Blair, Lynnwood, WA '87 Comanche, '83 Jeep J10, '84 Jeep J10 > > > > > > From: mbalea-at-hotmail.com > > To: fsj-at-digest.net > > Subject: fsj: slight but persistant vibration > > Date: Tue, 30 Dec 2008 02:50:49 +0000 > > > > a bit long... but I have tried most of everything. > > > > 74 waggy w 341kmiles on original trany/engine. 2 barrel 2100 and HEI > > distributor w fresh cap/rotor coil from a few months ago, yes they have > copper > > terminals, and the wires are 8mm taylor from last year, w the normal > > resistance. > > > > A few weeks ago a small but persistant vibration has developped on the > freeway > > on a 50 mile return trip.... strong enough to loosen one's filling and > > feelings about not beeing able to fix it. It happens in Park, in Neutral > and > > less in gear at idle as the idle is lower, but at speed it is happening. > There > > is not a real relation to the engine speed it happens and stay constant. > > > > It feels like a misfire: but idle is steady, vacuum is 20 inches at sea > level > > with an idle of 800 rpm in Park > > > > 1) I swapped a spare duraspark distributor w its set of wires and an old > MSD > > box. No difference. > > > > 2) Disconnected all belts: water pump, alternator, PS, and AIR pump. No > > difference > > > > 3) Plugged all vacuum lines including Brake booster, Transmission > modulator, > > Transfer case, heater control, EGR. distributor advance at the CTO switch > > (hummmm, now that I am writing it, may be the switch is bad! Probably not > > because it starts without a problem even during our cold weather of 40 > > degrees). No Changes. > > > > 4) Sprayed brake cleaner all over the carb area, no change in idle speed. > > > > 5) Recheck voltage at distributor (+) feed: 13.8 volts. Ground is good 0.01 > > ohm from engine ground to coil ground. Disconnected various accessories > > thinking that may be there is a short (voltmeter, tachometer). > > > > 6) Some have suggested bad engine/trany mounts: disconnected the trany > > selector at the frame and tried to Jack up the engine.... the body is going > > up, but no separation from engine or trany mounts. I have tried this a few > > times after Moab last year when the fan hit the shroud, but was never able > to > > show a loose engine mount, I even went to bug some good Jeep > aficionados.... > > and we could not see a failing mount. > > > > So after reading all these, I need some ideas. > > > > And for the added bonus hint: 2 weeks ago after a junk yard hunt.... I > never > > made it after 80 miles, there was 2 hesitations while driving at 65 mph and > I > > freewheelled to the shoulder (at least I was 12 miles from home)... had to > > have the waggy towed: before calling AAA I checked for spark (connected a > > spare spark plug and hotwired the ignition switch, and fuel while > depressing > > the throttle the gas flew off).... 30 minutes later in the driveway, I > wiped > > the inside of the distributor... the rotor was a tad burnt but nothing > > terrible, I cranked the engine and it started. I have not driven too far. > Did > > a few repeats of the above. > > > > Happy new year > > > > Michel > > > > > > > > _________________________________________________________________ > > Send e-mail faster without improving your typing skills. > > > http://windowslive.com/online/hotmail?ocid=TXT_TAGLM_WL_hotmail_acq_speed_122 > > 008 > > _________________________________________________________________ > It^Rs the same Hotmail.. If by ^Ssame^T you mean up to 70% faster. > http://windowslive.com/online/hotmail?ocid=TXT_TAGLM_WL_hotmail_acq_broad1_12 > 2008 _________________________________________________________________ It^Rs the same Hotmail.. If by ^Ssame^T you mean up to 70% faster. http://windowslive.com/online/hotmail?ocid=TXT_TAGLM_WL_hotmail_acq_broad1_12 2008 ------------------------------ Date: Mon, 29 Dec 2008 22:00:10 -0800 (PST) From: john Subject: Re: fsj: J10 Nearby the bedliners that sit in the beds collect moisture, the only good solution is the permanent spray in bed liner material. the stuff you can get at the mcparts stores works well, have it on my j10 trailer... still on there, been on there for many years... many loads of gravel, dirt, car parts, etc. john ----- - ------------------------------------------------------------------------ Snohomish, Washington -o|||||o- where Jeeps don't rust, they mold http://johnmeister.com/fotomeister - Trust Jesus: http://freegift.com SAVE power, avoid viruses, use LINUX: http://johnmeister.com/tmcp.pdf SAVE fuel, use synthetics: http://AMSOIL.com/redirect.cgi?zo=283461 - ------------------------------------------------------------------------ On Mon, 29 Dec 2008, Tesar Landon wrote: # Hey all, # # I found a J10 about 5 miles from my house, it may/may not be for sale, # but it has the early 80's grill, dark blue, longbed, 1 flat tire, 5spd, # sits kinda low, locking hubs in front, rusted bumper in back...the # neatest thing is that it has a camper top over the bed, no rust on the # bed seams, and the inside of the bed is CLEAN. Like freshly painted # clean. I've never seen one like that. If I was to get it, I would use # the bed, but want to protect it. Are there any good bedliners out # there, and is this the right thing to do? I don't like the idea of a # spray in liner, because it seems too permanent...interested in your # thoughts. # # - Landon # ------------------------------ Date: Mon, 29 Dec 2008 22:25:27 -0800 From: Jim Blair Subject: RE: fsj: slight but persistant vibration Sounds silly, but make sure #5 and #7 wires didn't mix up somehow. Bad harmonic balancer? Bent flexplate? Written laws are like spiders' webs, and will like them only Entangle and hold the poor and weak, while the rich and powerful will easily break through them ANACHARSIS Scythian philosopher (fl. 600 BC) > From: mbalea-at-hotmail.com > To: carnuck-at-hotmail.com; fsj-at-digest.net > Subject: RE: fsj: slight but persistant vibration > Date: Tue, 30 Dec 2008 05:45:32 +0000 > > I have HEI now. > > The timing started to be inaccurate... one day it would go up steep grades wo > an issue... the next afternoon, it was pinging.... so the module may be off... > It is from a salvaged rigg..... so it history is unknown. > > The bushings are tight. > > So it is either the GM module or the pick up coil ..... When i pulled ea > individual spark plug wires.... there was no changes in vibration except a > lowering of the rpm. > > As for the flat lobe.... there is a random mis when listening at the > exhaust... I guess I should record it and see if there is a real rhythm.... > > Tessar Landon suggested a jumped timing teeth.... > > Timing is tight, the strobe is tight on the mark. Jumping a tooth or two, I > had it years ago... and it did not create a such a dramatic effect. > > May be I got a bad cap and rotor... I looked at the maintenance log... it was > changed in February 08... so it may have gone south... after 5kmiles.... I > will install the old set.. then if no changes get a new module..... > > Thanks for the suggestions > > Michel > > > From: carnuck-at-hotmail.com > > To: mbalea-at-hotmail.com; fsj-at-digest.net > > Subject: RE: fsj: slight but persistant vibration > > Date: Mon, 29 Dec 2008 20:11:16 -0800 > > > > Sounds like my ex GF's Pacer when the Gold box went south. It started > messing > > with engine timing. If you still have points (can't recall if you had > points > > or did a Pertronix swap) the dist bushings may be bad. If a lobe is gone, > > spark will hit and miss. > > > > Jim Blair, Lynnwood, WA '87 Comanche, '83 Jeep J10, '84 Jeep J10 > > > > > > > > > > > From: mbalea-at-hotmail.com > > > To: fsj-at-digest.net > > > Subject: fsj: slight but persistant vibration > > > Date: Tue, 30 Dec 2008 02:50:49 +0000 > > > > > > a bit long... but I have tried most of everything. > > > > > > 74 waggy w 341kmiles on original trany/engine. 2 barrel 2100 and HEI > > > distributor w fresh cap/rotor coil from a few months ago, yes they have > > copper > > > terminals, and the wires are 8mm taylor from last year, w the normal > > > resistance. > > > > > > A few weeks ago a small but persistant vibration has developped on the > > freeway > > > on a 50 mile return trip.... strong enough to loosen one's filling and > > > feelings about not beeing able to fix it. It happens in Park, in Neutral > > and > > > less in gear at idle as the idle is lower, but at speed it is happening. > > There > > > is not a real relation to the engine speed it happens and stay constant. > > > > > > It feels like a misfire: but idle is steady, vacuum is 20 inches at sea > > level > > > with an idle of 800 rpm in Park > > > > > > 1) I swapped a spare duraspark distributor w its set of wires and an old > > MSD > > > box. No difference. > > > > > > 2) Disconnected all belts: water pump, alternator, PS, and AIR pump. No > > > difference > > > > > > 3) Plugged all vacuum lines including Brake booster, Transmission > > modulator, > > > Transfer case, heater control, EGR. distributor advance at the CTO switch > > > (hummmm, now that I am writing it, may be the switch is bad! Probably not > > > because it starts without a problem even during our cold weather of 40 > > > degrees). No Changes. > > > > > > 4) Sprayed brake cleaner all over the carb area, no change in idle speed. > > > > > > 5) Recheck voltage at distributor (+) feed: 13.8 volts. Ground is good > 0.01 > > > ohm from engine ground to coil ground. Disconnected various accessories > > > thinking that may be there is a short (voltmeter, tachometer). > > > > > > 6) Some have suggested bad engine/trany mounts: disconnected the trany > > > selector at the frame and tried to Jack up the engine.... the body is > going > > > up, but no separation from engine or trany mounts. I have tried this a > few > > > times after Moab last year when the fan hit the shroud, but was never > able > > to > > > show a loose engine mount, I even went to bug some good Jeep > > aficionados.... > > > and we could not see a failing mount. > > > > > > So after reading all these, I need some ideas. > > > > > > And for the added bonus hint: 2 weeks ago after a junk yard hunt.... I > > never > > > made it after 80 miles, there was 2 hesitations while driving at 65 mph > and > > I > > > freewheelled to the shoulder (at least I was 12 miles from home)... had > to > > > have the waggy towed: before calling AAA I checked for spark (connected a > > > spare spark plug and hotwired the ignition switch, and fuel while > > depressing > > > the throttle the gas flew off).... 30 minutes later in the driveway, I > > wiped > > > the inside of the distributor... the rotor was a tad burnt but nothing > > > terrible, I cranked the engine and it started. I have not driven too far. > > Did > > > a few repeats of the above. > > > > > > Happy new year > > > > > > Michel > > > > > > > > > > > > _________________________________________________________________ > > > Send e-mail faster without improving your typing skills. > > > > > > http://windowslive.com/online/hotmail?ocid=TXT_TAGLM_WL_hotmail_acq_speed_122 > > > 008 > > > > _________________________________________________________________ > > It^Rs the same Hotmail.. If by ^Ssame^T you mean up to 70% faster. > > > http://windowslive.com/online/hotmail?ocid=TXT_TAGLM_WL_hotmail_acq_broad1_12 > > 2008 > > _________________________________________________________________ > It^Rs the same Hotmail.. If by ^Ssame^T you mean up to 70% faster. > http://windowslive.com/online/hotmail?ocid=TXT_TAGLM_WL_hotmail_acq_broad1_12 > 2008 _________________________________________________________________ It^Rs the same Hotmail.. If by ^Ssame^T you mean up to 70% faster. http://windowslive.com/online/hotmail?ocid=TXT_TAGLM_WL_hotmail_acq_broad1_12 2008 ------------------------------ End of fsj-digest V1 #3235 **************************