Re: 1996 Cherokee 4.0 I6 timing mark. ??
But as there are helical gears on the bottom you have to off-set the rotor
when you first guide it in. To get proper placement may take a couple trys to get it into the right combination of teeth so the rotor is pointing exactly at the number one terminal.. "Mike Romain" <romainm@sympatico.ca> wrote in message news:45f171b7$0$5856$9a6e19ea@unlimited.newshostin g.com... > Mike wrote: >> "Leroy" <DodgemanFromHell@aol.com> wrote in message >> news:rcd1v2l2d6p3s5bbmm8pontr717dekg4uk@4ax.com... >>> Hi. I'm new to the group. My neighbor has a 96 Cherokee 4.0 I6 MPFI. >>> The distributor holddown bolt came out and it spit the distributor >>> out. He has purchased a new distributor (it bent the shaft on his old >>> one) and has asked me to help him install the new one. >>> >>> He says the engine has no ignition timing mark. That being the case, >>> how do I position the engine to get the rotor button aligned with the >>> #1 tower at DTC on #1 cylinder?? >>> >>> I am a fairly experienced mechanic on Dodges (and Studebakers :) >>> but am short on practical knowledge on jeeps. >>> >>> Just trying to help out a neighbor in distress. >>> >>> Thx in advance. >>> >>> >>> >>> "Leroy" >> >> >> 1.. Remove the No. 1 cylinder spark plug. Turn the engine using a >> socket wrench on the large bolt on the front of the crankshaft pulley. >> Place a finger near the No. 1 spark plug hole and turn the crankshaft >> until the piston reaches Top Dead Center (TDC). As the engine approaches >> TDC, you will feel air being expelled by the No. 1 cylinder. If the >> position is not being met, turn the engine another full turn (360 >> degree). Once the engine's position is correct, install the spark plug. >> 2.. Using a flat-bladed screwdriver, in the distributor hole, rotate >> the oil pump gear so that the slot in the oil pump shaft is in the >> correct position. >> 3.. With the distributor cap removed, install the distributor so that >> the rotor is positioned correctly. Insure that the distributor is fully >> seated against the cylinder block. If not, remove the distributor and >> perform the entire procedure again. >> 4.. Tighten the hold-down bolt to 17 ft. lbs. (23 Nm). >> 5.. Install distributor cap and ignition wires. Insure that the wires >> are routed correctly before attempting to start engine. >> >> > > The rotor should be pointing directly away from the engine block for #1 > also. > > 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: 1996 Cherokee 4.0 I6 timing mark. ??
But as there are helical gears on the bottom you have to off-set the rotor
when you first guide it in. To get proper placement may take a couple trys to get it into the right combination of teeth so the rotor is pointing exactly at the number one terminal.. "Mike Romain" <romainm@sympatico.ca> wrote in message news:45f171b7$0$5856$9a6e19ea@unlimited.newshostin g.com... > Mike wrote: >> "Leroy" <DodgemanFromHell@aol.com> wrote in message >> news:rcd1v2l2d6p3s5bbmm8pontr717dekg4uk@4ax.com... >>> Hi. I'm new to the group. My neighbor has a 96 Cherokee 4.0 I6 MPFI. >>> The distributor holddown bolt came out and it spit the distributor >>> out. He has purchased a new distributor (it bent the shaft on his old >>> one) and has asked me to help him install the new one. >>> >>> He says the engine has no ignition timing mark. That being the case, >>> how do I position the engine to get the rotor button aligned with the >>> #1 tower at DTC on #1 cylinder?? >>> >>> I am a fairly experienced mechanic on Dodges (and Studebakers :) >>> but am short on practical knowledge on jeeps. >>> >>> Just trying to help out a neighbor in distress. >>> >>> Thx in advance. >>> >>> >>> >>> "Leroy" >> >> >> 1.. Remove the No. 1 cylinder spark plug. Turn the engine using a >> socket wrench on the large bolt on the front of the crankshaft pulley. >> Place a finger near the No. 1 spark plug hole and turn the crankshaft >> until the piston reaches Top Dead Center (TDC). As the engine approaches >> TDC, you will feel air being expelled by the No. 1 cylinder. If the >> position is not being met, turn the engine another full turn (360 >> degree). Once the engine's position is correct, install the spark plug. >> 2.. Using a flat-bladed screwdriver, in the distributor hole, rotate >> the oil pump gear so that the slot in the oil pump shaft is in the >> correct position. >> 3.. With the distributor cap removed, install the distributor so that >> the rotor is positioned correctly. Insure that the distributor is fully >> seated against the cylinder block. If not, remove the distributor and >> perform the entire procedure again. >> 4.. Tighten the hold-down bolt to 17 ft. lbs. (23 Nm). >> 5.. Install distributor cap and ignition wires. Insure that the wires >> are routed correctly before attempting to start engine. >> >> > > The rotor should be pointing directly away from the engine block for #1 > also. > > 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: 1996 Cherokee 4.0 I6 timing mark. ??
But as there are helical gears on the bottom you have to off-set the rotor
when you first guide it in. To get proper placement may take a couple trys to get it into the right combination of teeth so the rotor is pointing exactly at the number one terminal.. "Mike Romain" <romainm@sympatico.ca> wrote in message news:45f171b7$0$5856$9a6e19ea@unlimited.newshostin g.com... > Mike wrote: >> "Leroy" <DodgemanFromHell@aol.com> wrote in message >> news:rcd1v2l2d6p3s5bbmm8pontr717dekg4uk@4ax.com... >>> Hi. I'm new to the group. My neighbor has a 96 Cherokee 4.0 I6 MPFI. >>> The distributor holddown bolt came out and it spit the distributor >>> out. He has purchased a new distributor (it bent the shaft on his old >>> one) and has asked me to help him install the new one. >>> >>> He says the engine has no ignition timing mark. That being the case, >>> how do I position the engine to get the rotor button aligned with the >>> #1 tower at DTC on #1 cylinder?? >>> >>> I am a fairly experienced mechanic on Dodges (and Studebakers :) >>> but am short on practical knowledge on jeeps. >>> >>> Just trying to help out a neighbor in distress. >>> >>> Thx in advance. >>> >>> >>> >>> "Leroy" >> >> >> 1.. Remove the No. 1 cylinder spark plug. Turn the engine using a >> socket wrench on the large bolt on the front of the crankshaft pulley. >> Place a finger near the No. 1 spark plug hole and turn the crankshaft >> until the piston reaches Top Dead Center (TDC). As the engine approaches >> TDC, you will feel air being expelled by the No. 1 cylinder. If the >> position is not being met, turn the engine another full turn (360 >> degree). Once the engine's position is correct, install the spark plug. >> 2.. Using a flat-bladed screwdriver, in the distributor hole, rotate >> the oil pump gear so that the slot in the oil pump shaft is in the >> correct position. >> 3.. With the distributor cap removed, install the distributor so that >> the rotor is positioned correctly. Insure that the distributor is fully >> seated against the cylinder block. If not, remove the distributor and >> perform the entire procedure again. >> 4.. Tighten the hold-down bolt to 17 ft. lbs. (23 Nm). >> 5.. Install distributor cap and ignition wires. Insure that the wires >> are routed correctly before attempting to start engine. >> >> > > The rotor should be pointing directly away from the engine block for #1 > also. > > 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: 1996 Cherokee 4.0 I6 timing mark. ??
The trailing edge of the rotor should be just PAST the #1 terminal at
TDC. On Fri, 9 Mar 2007 09:55:41 -0500, "billy ray" <billy_ray@SPAMfuse.net> wrote: >But as there are helical gears on the bottom you have to off-set the rotor >when you first guide it in. To get proper placement may take a couple trys >to get it into the right combination of teeth so the rotor is pointing >exactly at the number one terminal.. > > >"Mike Romain" <romainm@sympatico.ca> wrote in message >news:45f171b7$0$5856$9a6e19ea@unlimited.newshosti ng.com... >> Mike wrote: >>> "Leroy" <DodgemanFromHell@aol.com> wrote in message >>> news:rcd1v2l2d6p3s5bbmm8pontr717dekg4uk@4ax.com... >>>> Hi. I'm new to the group. My neighbor has a 96 Cherokee 4.0 I6 MPFI. >>>> The distributor holddown bolt came out and it spit the distributor >>>> out. He has purchased a new distributor (it bent the shaft on his old >>>> one) and has asked me to help him install the new one. >>>> >>>> He says the engine has no ignition timing mark. That being the case, >>>> how do I position the engine to get the rotor button aligned with the >>>> #1 tower at DTC on #1 cylinder?? >>>> >>>> I am a fairly experienced mechanic on Dodges (and Studebakers :) >>>> but am short on practical knowledge on jeeps. >>>> >>>> Just trying to help out a neighbor in distress. >>>> >>>> Thx in advance. >>>> >>>> >>>> >>>> "Leroy" >>> >>> >>> 1.. Remove the No. 1 cylinder spark plug. Turn the engine using a >>> socket wrench on the large bolt on the front of the crankshaft pulley. >>> Place a finger near the No. 1 spark plug hole and turn the crankshaft >>> until the piston reaches Top Dead Center (TDC). As the engine approaches >>> TDC, you will feel air being expelled by the No. 1 cylinder. If the >>> position is not being met, turn the engine another full turn (360 >>> degree). Once the engine's position is correct, install the spark plug. >>> 2.. Using a flat-bladed screwdriver, in the distributor hole, rotate >>> the oil pump gear so that the slot in the oil pump shaft is in the >>> correct position. >>> 3.. With the distributor cap removed, install the distributor so that >>> the rotor is positioned correctly. Insure that the distributor is fully >>> seated against the cylinder block. If not, remove the distributor and >>> perform the entire procedure again. >>> 4.. Tighten the hold-down bolt to 17 ft. lbs. (23 Nm). >>> 5.. Install distributor cap and ignition wires. Insure that the wires >>> are routed correctly before attempting to start engine. >>> >>> >> >> The rotor should be pointing directly away from the engine block for #1 >> also. >> >> 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: 1996 Cherokee 4.0 I6 timing mark. ??
The trailing edge of the rotor should be just PAST the #1 terminal at
TDC. On Fri, 9 Mar 2007 09:55:41 -0500, "billy ray" <billy_ray@SPAMfuse.net> wrote: >But as there are helical gears on the bottom you have to off-set the rotor >when you first guide it in. To get proper placement may take a couple trys >to get it into the right combination of teeth so the rotor is pointing >exactly at the number one terminal.. > > >"Mike Romain" <romainm@sympatico.ca> wrote in message >news:45f171b7$0$5856$9a6e19ea@unlimited.newshosti ng.com... >> Mike wrote: >>> "Leroy" <DodgemanFromHell@aol.com> wrote in message >>> news:rcd1v2l2d6p3s5bbmm8pontr717dekg4uk@4ax.com... >>>> Hi. I'm new to the group. My neighbor has a 96 Cherokee 4.0 I6 MPFI. >>>> The distributor holddown bolt came out and it spit the distributor >>>> out. He has purchased a new distributor (it bent the shaft on his old >>>> one) and has asked me to help him install the new one. >>>> >>>> He says the engine has no ignition timing mark. That being the case, >>>> how do I position the engine to get the rotor button aligned with the >>>> #1 tower at DTC on #1 cylinder?? >>>> >>>> I am a fairly experienced mechanic on Dodges (and Studebakers :) >>>> but am short on practical knowledge on jeeps. >>>> >>>> Just trying to help out a neighbor in distress. >>>> >>>> Thx in advance. >>>> >>>> >>>> >>>> "Leroy" >>> >>> >>> 1.. Remove the No. 1 cylinder spark plug. Turn the engine using a >>> socket wrench on the large bolt on the front of the crankshaft pulley. >>> Place a finger near the No. 1 spark plug hole and turn the crankshaft >>> until the piston reaches Top Dead Center (TDC). As the engine approaches >>> TDC, you will feel air being expelled by the No. 1 cylinder. If the >>> position is not being met, turn the engine another full turn (360 >>> degree). Once the engine's position is correct, install the spark plug. >>> 2.. Using a flat-bladed screwdriver, in the distributor hole, rotate >>> the oil pump gear so that the slot in the oil pump shaft is in the >>> correct position. >>> 3.. With the distributor cap removed, install the distributor so that >>> the rotor is positioned correctly. Insure that the distributor is fully >>> seated against the cylinder block. If not, remove the distributor and >>> perform the entire procedure again. >>> 4.. Tighten the hold-down bolt to 17 ft. lbs. (23 Nm). >>> 5.. Install distributor cap and ignition wires. Insure that the wires >>> are routed correctly before attempting to start engine. >>> >>> >> >> The rotor should be pointing directly away from the engine block for #1 >> also. >> >> 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: 1996 Cherokee 4.0 I6 timing mark. ??
The trailing edge of the rotor should be just PAST the #1 terminal at
TDC. On Fri, 9 Mar 2007 09:55:41 -0500, "billy ray" <billy_ray@SPAMfuse.net> wrote: >But as there are helical gears on the bottom you have to off-set the rotor >when you first guide it in. To get proper placement may take a couple trys >to get it into the right combination of teeth so the rotor is pointing >exactly at the number one terminal.. > > >"Mike Romain" <romainm@sympatico.ca> wrote in message >news:45f171b7$0$5856$9a6e19ea@unlimited.newshosti ng.com... >> Mike wrote: >>> "Leroy" <DodgemanFromHell@aol.com> wrote in message >>> news:rcd1v2l2d6p3s5bbmm8pontr717dekg4uk@4ax.com... >>>> Hi. I'm new to the group. My neighbor has a 96 Cherokee 4.0 I6 MPFI. >>>> The distributor holddown bolt came out and it spit the distributor >>>> out. He has purchased a new distributor (it bent the shaft on his old >>>> one) and has asked me to help him install the new one. >>>> >>>> He says the engine has no ignition timing mark. That being the case, >>>> how do I position the engine to get the rotor button aligned with the >>>> #1 tower at DTC on #1 cylinder?? >>>> >>>> I am a fairly experienced mechanic on Dodges (and Studebakers :) >>>> but am short on practical knowledge on jeeps. >>>> >>>> Just trying to help out a neighbor in distress. >>>> >>>> Thx in advance. >>>> >>>> >>>> >>>> "Leroy" >>> >>> >>> 1.. Remove the No. 1 cylinder spark plug. Turn the engine using a >>> socket wrench on the large bolt on the front of the crankshaft pulley. >>> Place a finger near the No. 1 spark plug hole and turn the crankshaft >>> until the piston reaches Top Dead Center (TDC). As the engine approaches >>> TDC, you will feel air being expelled by the No. 1 cylinder. If the >>> position is not being met, turn the engine another full turn (360 >>> degree). Once the engine's position is correct, install the spark plug. >>> 2.. Using a flat-bladed screwdriver, in the distributor hole, rotate >>> the oil pump gear so that the slot in the oil pump shaft is in the >>> correct position. >>> 3.. With the distributor cap removed, install the distributor so that >>> the rotor is positioned correctly. Insure that the distributor is fully >>> seated against the cylinder block. If not, remove the distributor and >>> perform the entire procedure again. >>> 4.. Tighten the hold-down bolt to 17 ft. lbs. (23 Nm). >>> 5.. Install distributor cap and ignition wires. Insure that the wires >>> are routed correctly before attempting to start engine. >>> >>> >> >> The rotor should be pointing directly away from the engine block for #1 >> also. >> >> 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: 1996 Cherokee 4.0 I6 timing mark. ??
On Thu, 08 Mar 2007 22:11:48 -0800, bllsht <nospam@dot.net> wrote:
>On Thu, 08 Mar 2007 20:26:18 -0500, Leroy <DodgemanFromHell@aol.com> >wrote: > >>Hi. I'm new to the group. My neighbor has a 96 Cherokee 4.0 I6 MPFI. >>The distributor holddown bolt came out and it spit the distributor >>out. He has purchased a new distributor (it bent the shaft on his old >>one) and has asked me to help him install the new one. >> >>He says the engine has no ignition timing mark. That being the case, >>how do I position the engine to get the rotor button aligned with the >>#1 tower at DTC on #1 cylinder?? >> >>I am a fairly experienced mechanic on Dodges (and Studebakers :) >>but am short on practical knowledge on jeeps. >> >>Just trying to help out a neighbor in distress. >> >>Thx in advance. >> >> >> >>"Leroy" >It's on the timing cover where you'd expect it to be. > > If it was there, we (3 of us) never found it. Anyway, it was a no-brainer. The A/C compressor was in the way on #1 so I timed it off of #6 plug hole and #6 tower on the opposite side of the distributor. Got #6 on the compression stroke by the "thumb in the hole" method then ran a screwdriver down the plug hole and could feel the piston movement when the crank was being turned with a socket (not the starter!!!). Got #6 as close to DTC as possible by feeling the piston stop at top . Set the rotor button to where the trail edge had just cleared the #6 tower and locked it down. Presto. It ran like a Jeep! :) Took about 20 minutes and I now have an extra case of beer-- and a happy neighbor. A great big old Thank you to all who responded. "Leroy" |
Re: 1996 Cherokee 4.0 I6 timing mark. ??
On Thu, 08 Mar 2007 22:11:48 -0800, bllsht <nospam@dot.net> wrote:
>On Thu, 08 Mar 2007 20:26:18 -0500, Leroy <DodgemanFromHell@aol.com> >wrote: > >>Hi. I'm new to the group. My neighbor has a 96 Cherokee 4.0 I6 MPFI. >>The distributor holddown bolt came out and it spit the distributor >>out. He has purchased a new distributor (it bent the shaft on his old >>one) and has asked me to help him install the new one. >> >>He says the engine has no ignition timing mark. That being the case, >>how do I position the engine to get the rotor button aligned with the >>#1 tower at DTC on #1 cylinder?? >> >>I am a fairly experienced mechanic on Dodges (and Studebakers :) >>but am short on practical knowledge on jeeps. >> >>Just trying to help out a neighbor in distress. >> >>Thx in advance. >> >> >> >>"Leroy" >It's on the timing cover where you'd expect it to be. > > If it was there, we (3 of us) never found it. Anyway, it was a no-brainer. The A/C compressor was in the way on #1 so I timed it off of #6 plug hole and #6 tower on the opposite side of the distributor. Got #6 on the compression stroke by the "thumb in the hole" method then ran a screwdriver down the plug hole and could feel the piston movement when the crank was being turned with a socket (not the starter!!!). Got #6 as close to DTC as possible by feeling the piston stop at top . Set the rotor button to where the trail edge had just cleared the #6 tower and locked it down. Presto. It ran like a Jeep! :) Took about 20 minutes and I now have an extra case of beer-- and a happy neighbor. A great big old Thank you to all who responded. "Leroy" |
Re: 1996 Cherokee 4.0 I6 timing mark. ??
On Thu, 08 Mar 2007 22:11:48 -0800, bllsht <nospam@dot.net> wrote:
>On Thu, 08 Mar 2007 20:26:18 -0500, Leroy <DodgemanFromHell@aol.com> >wrote: > >>Hi. I'm new to the group. My neighbor has a 96 Cherokee 4.0 I6 MPFI. >>The distributor holddown bolt came out and it spit the distributor >>out. He has purchased a new distributor (it bent the shaft on his old >>one) and has asked me to help him install the new one. >> >>He says the engine has no ignition timing mark. That being the case, >>how do I position the engine to get the rotor button aligned with the >>#1 tower at DTC on #1 cylinder?? >> >>I am a fairly experienced mechanic on Dodges (and Studebakers :) >>but am short on practical knowledge on jeeps. >> >>Just trying to help out a neighbor in distress. >> >>Thx in advance. >> >> >> >>"Leroy" >It's on the timing cover where you'd expect it to be. > > If it was there, we (3 of us) never found it. Anyway, it was a no-brainer. The A/C compressor was in the way on #1 so I timed it off of #6 plug hole and #6 tower on the opposite side of the distributor. Got #6 on the compression stroke by the "thumb in the hole" method then ran a screwdriver down the plug hole and could feel the piston movement when the crank was being turned with a socket (not the starter!!!). Got #6 as close to DTC as possible by feeling the piston stop at top . Set the rotor button to where the trail edge had just cleared the #6 tower and locked it down. Presto. It ran like a Jeep! :) Took about 20 minutes and I now have an extra case of beer-- and a happy neighbor. A great big old Thank you to all who responded. "Leroy" |
Re: 1996 Cherokee 4.0 I6 timing mark. ??
Leroy wrote:
> On Thu, 08 Mar 2007 22:11:48 -0800, bllsht <nospam@dot.net> wrote: > > >> On Thu, 08 Mar 2007 20:26:18 -0500, Leroy <DodgemanFromHell@aol.com> >> wrote: >> >>> Hi. I'm new to the group. My neighbor has a 96 Cherokee 4.0 I6 MPFI. >>> The distributor holddown bolt came out and it spit the distributor >>> out. He has purchased a new distributor (it bent the shaft on his old >>> one) and has asked me to help him install the new one. >>> >>> He says the engine has no ignition timing mark. That being the case, >>> how do I position the engine to get the rotor button aligned with the >>> #1 tower at DTC on #1 cylinder?? >>> >>> I am a fairly experienced mechanic on Dodges (and Studebakers :) >>> but am short on practical knowledge on jeeps. >>> >>> Just trying to help out a neighbor in distress. >>> >>> Thx in advance. >>> >>> >>> >>> "Leroy" > >> It's on the timing cover where you'd expect it to be. >> >> > > If it was there, we (3 of us) never found it. > Thanks for the follow up! You and your 2 friends are correct about there being no timing mark on the 4.0 engines. I own 2 4.0's. I just saw --------'s photo over on alt.binaries.pictures.autos.4x4 and it is -------- just like his posting name. He has shown a photo of what appears to be a 4.2 engine with it's V-belt pulleys and timing mark. He is a hard person to follow, sometimes his advise is right on, other times it is complete --------. The 4.0 does not have adjustable timing, the distributor fits a notch so there is no need for anything above a TDC mark. 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) |
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