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Re: Re: CJ-5 Heater Fan Upgrade Questions. Now Dead 350 'from' a backfire...
On Fri, 23 Mar 2007 12:17:33 -0400, Mike Romain <romainm@sympatico.ca>
wrote: >Then you normally talk a series of backfires or 'pops', not one bang and >stop that is 'caused' by a slight trace of hydrocarbons in the rad >coolant most likely from a cracked head!!!! Not always because depending on the reason for the lean out when the engine missfired and back fires it looses power and required fuel flow so demand for it decreases and it may run alright for a bit afterwards when it recovers. Also something this backfire can occur when there is a throttle change and enrichment lags enough to cause the "pop" from lean out. This iis not to say it could not be ignition but more often than not when it spits through intake it is from leanout under load or engine acceleration. ----------------- TheSnoMan.com |
Re: Re: CJ-5 Heater Fan Upgrade Questions. Now Dead 350 'from' a backfire...
On Fri, 23 Mar 2007 12:17:33 -0400, Mike Romain <romainm@sympatico.ca>
wrote: >Then you normally talk a series of backfires or 'pops', not one bang and >stop that is 'caused' by a slight trace of hydrocarbons in the rad >coolant most likely from a cracked head!!!! Not always because depending on the reason for the lean out when the engine missfired and back fires it looses power and required fuel flow so demand for it decreases and it may run alright for a bit afterwards when it recovers. Also something this backfire can occur when there is a throttle change and enrichment lags enough to cause the "pop" from lean out. This iis not to say it could not be ignition but more often than not when it spits through intake it is from leanout under load or engine acceleration. ----------------- TheSnoMan.com |
Re: CJ-5 Heater Fan Upgrade Questions. Now Dead 350 'from' a backfire...
SnoMan wrote:
> On Fri, 23 Mar 2007 12:17:33 -0400, Mike Romain <romainm@sympatico.ca> > wrote: > >> Then you normally talk a series of backfires or 'pops', not one bang and >> stop that is 'caused' by a slight trace of hydrocarbons in the rad >> coolant most likely from a cracked head!!!! > > > Not always because depending on the reason for the lean out when the > engine missfired and back fires it looses power and required fuel flow > so demand for it decreases and it may run alright for a bit afterwards > when it recovers. Also something this backfire can occur when there is > a throttle change and enrichment lags enough to cause the "pop" from > lean out. This iis not to say it could not be ignition but more often > than not when it spits through intake it is from leanout under load or > engine acceleration. > ----------------- > TheSnoMan.com "Caused by a slight trace of hydrocarbons in the coolant which means a cracked head"???????????? We are talking a bang that stopped the engine cold at speed twice in a row to the point of a tow... Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's Canadian Off Road Trips Photos: Non members can still view! Jan/06 http://www.imagestation.com/album/pi...?id=2115147590 (More Off Road album links at bottom of the view page) |
Re: CJ-5 Heater Fan Upgrade Questions. Now Dead 350 'from' a backfire...
SnoMan wrote:
> On Fri, 23 Mar 2007 12:17:33 -0400, Mike Romain <romainm@sympatico.ca> > wrote: > >> Then you normally talk a series of backfires or 'pops', not one bang and >> stop that is 'caused' by a slight trace of hydrocarbons in the rad >> coolant most likely from a cracked head!!!! > > > Not always because depending on the reason for the lean out when the > engine missfired and back fires it looses power and required fuel flow > so demand for it decreases and it may run alright for a bit afterwards > when it recovers. Also something this backfire can occur when there is > a throttle change and enrichment lags enough to cause the "pop" from > lean out. This iis not to say it could not be ignition but more often > than not when it spits through intake it is from leanout under load or > engine acceleration. > ----------------- > TheSnoMan.com "Caused by a slight trace of hydrocarbons in the coolant which means a cracked head"???????????? We are talking a bang that stopped the engine cold at speed twice in a row to the point of a tow... Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's Canadian Off Road Trips Photos: Non members can still view! Jan/06 http://www.imagestation.com/album/pi...?id=2115147590 (More Off Road album links at bottom of the view page) |
Re: CJ-5 Heater Fan Upgrade Questions. Now Dead 350 'from' a backfire...
SnoMan wrote:
> On Fri, 23 Mar 2007 12:17:33 -0400, Mike Romain <romainm@sympatico.ca> > wrote: > >> Then you normally talk a series of backfires or 'pops', not one bang and >> stop that is 'caused' by a slight trace of hydrocarbons in the rad >> coolant most likely from a cracked head!!!! > > > Not always because depending on the reason for the lean out when the > engine missfired and back fires it looses power and required fuel flow > so demand for it decreases and it may run alright for a bit afterwards > when it recovers. Also something this backfire can occur when there is > a throttle change and enrichment lags enough to cause the "pop" from > lean out. This iis not to say it could not be ignition but more often > than not when it spits through intake it is from leanout under load or > engine acceleration. > ----------------- > TheSnoMan.com "Caused by a slight trace of hydrocarbons in the coolant which means a cracked head"???????????? We are talking a bang that stopped the engine cold at speed twice in a row to the point of a tow... Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's Canadian Off Road Trips Photos: Non members can still view! Jan/06 http://www.imagestation.com/album/pi...?id=2115147590 (More Off Road album links at bottom of the view page) |
Re: CJ-5 Heater Fan Upgrade Questions. Now Dead 350 'from' a backfire...
Mike Romain wrote:
> SnoMan wrote: >> On Fri, 23 Mar 2007 12:17:33 -0400, Mike Romain <romainm@sympatico.ca> >> wrote: >> >>> Then you normally talk a series of backfires or 'pops', not one bang >>> and stop that is 'caused' by a slight trace of hydrocarbons in the >>> rad coolant most likely from a cracked head!!!! >> >> >> Not always because depending on the reason for the lean out when the >> engine missfired and back fires it looses power and required fuel flow >> so demand for it decreases and it may run alright for a bit afterwards >> when it recovers. Also something this backfire can occur when there is >> a throttle change and enrichment lags enough to cause the "pop" from >> lean out. This iis not to say it could not be ignition but more often >> than not when it spits through intake it is from leanout under load or >> engine acceleration. >> ----------------- >> TheSnoMan.com > > "Caused by a slight trace of hydrocarbons in the coolant which means a > cracked head"???????????? > > We are talking a bang that stopped the engine cold at speed twice in a > row to the point of a tow... Can we say it sounds like the center coil wire came loose? > > Mike > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > 88 Cherokee 235 BFG AT's > Canadian Off Road Trips Photos: Non members can still view! > Jan/06 http://www.imagestation.com/album/pi...?id=2115147590 > (More Off Road album links at bottom of the view page) |
Re: CJ-5 Heater Fan Upgrade Questions. Now Dead 350 'from' a backfire...
Mike Romain wrote:
> SnoMan wrote: >> On Fri, 23 Mar 2007 12:17:33 -0400, Mike Romain <romainm@sympatico.ca> >> wrote: >> >>> Then you normally talk a series of backfires or 'pops', not one bang >>> and stop that is 'caused' by a slight trace of hydrocarbons in the >>> rad coolant most likely from a cracked head!!!! >> >> >> Not always because depending on the reason for the lean out when the >> engine missfired and back fires it looses power and required fuel flow >> so demand for it decreases and it may run alright for a bit afterwards >> when it recovers. Also something this backfire can occur when there is >> a throttle change and enrichment lags enough to cause the "pop" from >> lean out. This iis not to say it could not be ignition but more often >> than not when it spits through intake it is from leanout under load or >> engine acceleration. >> ----------------- >> TheSnoMan.com > > "Caused by a slight trace of hydrocarbons in the coolant which means a > cracked head"???????????? > > We are talking a bang that stopped the engine cold at speed twice in a > row to the point of a tow... Can we say it sounds like the center coil wire came loose? > > Mike > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > 88 Cherokee 235 BFG AT's > Canadian Off Road Trips Photos: Non members can still view! > Jan/06 http://www.imagestation.com/album/pi...?id=2115147590 > (More Off Road album links at bottom of the view page) |
Re: CJ-5 Heater Fan Upgrade Questions. Now Dead 350 'from' a backfire...
Mike Romain wrote:
> SnoMan wrote: >> On Fri, 23 Mar 2007 12:17:33 -0400, Mike Romain <romainm@sympatico.ca> >> wrote: >> >>> Then you normally talk a series of backfires or 'pops', not one bang >>> and stop that is 'caused' by a slight trace of hydrocarbons in the >>> rad coolant most likely from a cracked head!!!! >> >> >> Not always because depending on the reason for the lean out when the >> engine missfired and back fires it looses power and required fuel flow >> so demand for it decreases and it may run alright for a bit afterwards >> when it recovers. Also something this backfire can occur when there is >> a throttle change and enrichment lags enough to cause the "pop" from >> lean out. This iis not to say it could not be ignition but more often >> than not when it spits through intake it is from leanout under load or >> engine acceleration. >> ----------------- >> TheSnoMan.com > > "Caused by a slight trace of hydrocarbons in the coolant which means a > cracked head"???????????? > > We are talking a bang that stopped the engine cold at speed twice in a > row to the point of a tow... Can we say it sounds like the center coil wire came loose? > > Mike > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > 88 Cherokee 235 BFG AT's > Canadian Off Road Trips Photos: Non members can still view! > Jan/06 http://www.imagestation.com/album/pi...?id=2115147590 > (More Off Road album links at bottom of the view page) |
Re: Re: CJ-5 Heater Fan Upgrade Questions. Now Dead 350 'from' a backfire...
On Fri, 23 Mar 2007 19:35:18 -0400, Mike Romain <romainm@sympatico.ca>
wrote: >Mike Romain wrote: >> SnoMan wrote: >>> On Fri, 23 Mar 2007 12:17:33 -0400, Mike Romain <romainm@sympatico.ca> >>> wrote: >>> >>>> Then you normally talk a series of backfires or 'pops', not one bang >>>> and stop that is 'caused' by a slight trace of hydrocarbons in the >>>> rad coolant most likely from a cracked head!!!! >>> >>> >>> Not always because depending on the reason for the lean out when the >>> engine missfired and back fires it looses power and required fuel flow >>> so demand for it decreases and it may run alright for a bit afterwards >>> when it recovers. Also something this backfire can occur when there is >>> a throttle change and enrichment lags enough to cause the "pop" from >>> lean out. This iis not to say it could not be ignition but more often >>> than not when it spits through intake it is from leanout under load or >>> engine acceleration. >>> ----------------- >>> TheSnoMan.com >> >> "Caused by a slight trace of hydrocarbons in the coolant which means a >> cracked head"???????????? >> >> We are talking a bang that stopped the engine cold at speed twice in a >> row to the point of a tow... > >Can we say it sounds like the center coil wire came loose? Maybe but at same time a serious backfire through intake can kill a engine and damage injectors (and some sensors) and sometimes carbs. Again I am not rulling out you idea it is just I have seen some real serious back fires in my life and some that caused damage to point engine would not run until it was repaired. > >> >> Mike >> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 >> 88 Cherokee 235 BFG AT's >> Canadian Off Road Trips Photos: Non members can still view! >> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590 >> (More Off Road album links at bottom of the view page) ----------------- TheSnoMan.com |
Re: Re: CJ-5 Heater Fan Upgrade Questions. Now Dead 350 'from' a backfire...
On Fri, 23 Mar 2007 19:35:18 -0400, Mike Romain <romainm@sympatico.ca>
wrote: >Mike Romain wrote: >> SnoMan wrote: >>> On Fri, 23 Mar 2007 12:17:33 -0400, Mike Romain <romainm@sympatico.ca> >>> wrote: >>> >>>> Then you normally talk a series of backfires or 'pops', not one bang >>>> and stop that is 'caused' by a slight trace of hydrocarbons in the >>>> rad coolant most likely from a cracked head!!!! >>> >>> >>> Not always because depending on the reason for the lean out when the >>> engine missfired and back fires it looses power and required fuel flow >>> so demand for it decreases and it may run alright for a bit afterwards >>> when it recovers. Also something this backfire can occur when there is >>> a throttle change and enrichment lags enough to cause the "pop" from >>> lean out. This iis not to say it could not be ignition but more often >>> than not when it spits through intake it is from leanout under load or >>> engine acceleration. >>> ----------------- >>> TheSnoMan.com >> >> "Caused by a slight trace of hydrocarbons in the coolant which means a >> cracked head"???????????? >> >> We are talking a bang that stopped the engine cold at speed twice in a >> row to the point of a tow... > >Can we say it sounds like the center coil wire came loose? Maybe but at same time a serious backfire through intake can kill a engine and damage injectors (and some sensors) and sometimes carbs. Again I am not rulling out you idea it is just I have seen some real serious back fires in my life and some that caused damage to point engine would not run until it was repaired. > >> >> Mike >> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 >> 88 Cherokee 235 BFG AT's >> Canadian Off Road Trips Photos: Non members can still view! >> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590 >> (More Off Road album links at bottom of the view page) ----------------- TheSnoMan.com |
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