timing? What else could it be?
CF Veteran
Joined: Jun 2009
Posts: 5,383
Likes: 5
Year: 1988 limited
Model: Cherokee
Engine: 4.0 litre
I might try just getting a new distributor for the year of the motor then you know everything is right. You should be able to see the cam gear if you look in the hole for the distributor might be able to do a visual check on it. I had a hell of a time getting a 4.2l to run were a 4.0 h o used to be and it was all the distributor moving as we dropped it in took like 20 tries before it slid in to the exact right tooth to be point directly at #1
maybe tomorrow
maybe tomorrow
After positioning the dist gear, mount the distributor and move the wires around starting from #1 at TDC, following the fireing order.
Last edited by fantic238; Sep 8, 2009 at 03:51 AM.
CF Veteran
Joined: Jun 2009
Posts: 5,383
Likes: 5
Year: 1988 limited
Model: Cherokee
Engine: 4.0 litre
CF Veteran
Joined: Jun 2009
Posts: 5,383
Likes: 5
Year: 1988 limited
Model: Cherokee
Engine: 4.0 litre
CF Veteran
Joined: Jun 2009
Posts: 5,383
Likes: 5
Year: 1988 limited
Model: Cherokee
Engine: 4.0 litre
Not exactly but very close. The guy we have helping now is not willing to give up on us.
We decided to change the cam from the original motor, put the dist back to original and the timing set from the original motor into the new motor. It did something good cause its running smoother, but still has a backfire. Not near as bad, it is running on its own, not shutting itself off, not retarding and advancing like it was and its taking the throttle.
We forgot to block off the egr again so the efforts to set the timing tonite were useless cause its got the bad vac leak (egr broke and stuck open). By the time we realized it was after dark and all parts stores were closed. We'll be plugging the hole tomorrow and trying to reset timing.
Does anyone have an 88 that could look at the dist cap and tell me where the #1 plug position is since there are 2 different positions for the inline 6?
We decided to change the cam from the original motor, put the dist back to original and the timing set from the original motor into the new motor. It did something good cause its running smoother, but still has a backfire. Not near as bad, it is running on its own, not shutting itself off, not retarding and advancing like it was and its taking the throttle.
We forgot to block off the egr again so the efforts to set the timing tonite were useless cause its got the bad vac leak (egr broke and stuck open). By the time we realized it was after dark and all parts stores were closed. We'll be plugging the hole tomorrow and trying to reset timing.
Does anyone have an 88 that could look at the dist cap and tell me where the #1 plug position is since there are 2 different positions for the inline 6?
CF Veteran
Joined: Jun 2009
Posts: 5,383
Likes: 5
Year: 1988 limited
Model: Cherokee
Engine: 4.0 litre
something happened and i think the starter or solenoid burned up cause it wont crank just click. It wont start now at all. I am done! I give up, the jeep won...all this work and time I cant do it anymore. I think Im gonna put it up for sale and try to find something else this week or when I come back from vac.
My friend has given up too. he said we have done and tried everything he can possibly think of and its not helping so just take the loss and sell...
My friend has given up too. he said we have done and tried everything he can possibly think of and its not helping so just take the loss and sell...
CF Veteran
Joined: Jun 2009
Posts: 5,383
Likes: 5
Year: 1988 limited
Model: Cherokee
Engine: 4.0 litre
As soon as i get home i will dismantle my '88 distributor cap and take pics of the correct rotor position at TDC and correct cap bolts position and WTH get this timing correct.
CF Veteran
Joined: Nov 2008
Posts: 2,473
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From: Paso Robles Ca
Year: 1991
Model: Cherokee
Engine: 4.0
reading back over all this
and thinking the cam gears not matching is strange
I'm wondering if the new motor is a 90 or91 not a 89
that would make it a HO motor and explain why the old distributor is not fitting and gears are not meshing
and thinking the cam gears not matching is strange
I'm wondering if the new motor is a 90 or91 not a 89
that would make it a HO motor and explain why the old distributor is not fitting and gears are not meshing
Last edited by mike37; Sep 8, 2009 at 11:32 AM.
Member
Joined: Feb 2008
Posts: 162
Likes: 0
From: Vista CA
Year: 1998
Model: Cherokee
Engine: 4.0
guess that's a reasonable question too, Mike ... have misplaced my Haynes which is makin' me nutz ... but I think we could cross ref that motor number somehow if we knew it.
I have done a search but can't really find an index that is positive enough to indentify.
I have done a search but can't really find an index that is positive enough to indentify.
Junior Member
Joined: Mar 2009
Posts: 98
Likes: 3
Year: 93
Model: Cherokee
Engine: 4.0
have not read every single post. so forgive me if this came up.
could it be a bad coil? a bad coil can make setting the timing nearly impossible.. and can cause engines to die and run erratically.
S
could it be a bad coil? a bad coil can make setting the timing nearly impossible.. and can cause engines to die and run erratically.
S
Thread Starter
Junior Member
Joined: Aug 2009
Posts: 65
Likes: 0
From: Peach Bottom, PA
Year: 88
Model: Cherokee
Engine: 4.0
Hey where's my pics? LOLThat guy came over and looked. Battery is basically shot right now, but I questioned the color combo on the injector plugs. I was right, they were not in correct order. Will fix that tonite. He is pretty sure we have the timing off by 180 so once the injectors are in correct firing order, he is going to fix my timing and hopefully it will start purring. As long as there is no other problems...
CF Veteran
Joined: Jun 2009
Posts: 5,383
Likes: 5
Year: 1988 limited
Model: Cherokee
Engine: 4.0 litre