Squeaking Distributor/Rotor Cap
CF Veteran
Joined: Mar 2010
Posts: 47,923
Likes: 38
From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
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Senior Member
Joined: Apr 2012
Posts: 716
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From: Charlotte, NC
Year: 1994 Jeep Cherokee Sport
That was a really loud bang, could I mess up any of the components??? I love my Jeep! My son nearly jumped out of his skin! My daughter ran outside and thought someone got shot! I will get it right tomorrow. Please tell me if I need to pull the #1 plug from the engine or cap to check for compression?
CF Veteran
Joined: Mar 2010
Posts: 47,923
Likes: 38
From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
That was a really loud bang, could I mess up any of the components??? I love my Jeep! My son nearly jumped out of his skin! My daughter ran outside and thought someone got shot! I will get it right tomorrow. Please tell me if I need to pull the #1 plug from the engine or cap to check for compression?
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Senior Member
Joined: Apr 2012
Posts: 716
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From: Charlotte, NC
Year: 1994 Jeep Cherokee Sport
Heres what needs to be done when the red clears...Keys removed from ignition a must.....You'll have to remove the #1 spark plug and place your finger over the hole while someone turns the crank. You'll feel air pressure on your finger when the piston is approaching TDC compression. At this time the index marks will be approaching each other. Bump the wrench on the damper bolt until the mark aligns on 0. That's #1 TDC compression. Then remove dist align oil shaft at 11 and pin dist and install.
CF Veteran
Joined: Mar 2010
Posts: 47,923
Likes: 38
From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
Thread Starter
Senior Member
Joined: Apr 2012
Posts: 716
Likes: 0
From: Charlotte, NC
Year: 1994 Jeep Cherokee Sport
Thread Starter
Senior Member
Joined: Apr 2012
Posts: 716
Likes: 0
From: Charlotte, NC
Year: 1994 Jeep Cherokee Sport
You have to understand the concept of how a distributor works within the timing system of the engine. Before you removed it, the distributor was lined up in sync with the firing timing of the engine. When you put it back in, you placed it in a different position which made the system out of sync. Now you have absolutely no reference on how to out the distributor back in without pure guesswork. That's why you have to follow CCKen's instructions on how to line up the mechanical components with the distributor placement to put the system in time. If these instructions have you baffled and you can't identify the timing components that you must manipulate, I would recommend that you have a professional do this for you.
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Joined: Apr 2012
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From: Charlotte, NC
Year: 1994 Jeep Cherokee Sport
Cool, but know this: The index mark on the vibration damper aligns with the zero "0" mark on the timing chain cover twice. Once when #1 piston is at the top of its compression stroke and again when #6 piston is at the top of its compression stroke. Just because you have the damper index mark aligned with the zero mark doesn't mean you are at #1 TDC. You must establish that the #1 piston is at the top of its compression stroke.
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Joined: Apr 2012
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From: Charlotte, NC
Year: 1994 Jeep Cherokee Sport
The mark on the crankshaft vibration damper is a slot cut into the edge of the damper (see pic in the thread). It won't have the outline like in the pic - you do that, after you find it. You'll have to feel around the edge of the damper to find it, then rotate the crank into position to mark it. If you have the fan removed, you can slowly rotate the crankshaft until you see the slot. Now mark it, like in the pic. Unfortunately you've removed the distributor without establishing it was set to #1 cylinder/piston being at top dead center of its compression stroke, so you could go back http://youtu.be/bdrEgWvlAGc with the replacement distributor pinned at #1 using the pin punch. Now you have to establish that #1 piston is at the top of its compression stroke, then proceed.
This statement is throwing me off…
CF Veteran
Joined: Mar 2010
Posts: 47,923
Likes: 38
From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
Remove no 1 plug from cylinder head. Place finger over hole. Have some one turn crank bolt until you feel air trying to push your finger off the hole.. Then turning very slowly line up timing mark on zero. The first time it lines up. Like this.....


