Squeaking Distributor/Rotor Cap
#31
Member
Joined: Feb 2014
Posts: 172
Likes: 0
From: north of the Rio Grande, south of the Red, east of the Pecos, west of the Sabine
Year: 1990
Model: Comanche
Engine: 4.0
The squeal may return, but if not, don't sweat it. Take your other one back for a refund. If it does start making noise again, then you, being an old pro by then, should pull the old distributor and turn the distributor shaft by hand BEFORE going down to auto parts store. It should spin freely. If it is stiff like mine was, THEN you know where the squeal was coming from. The shaft spins inside two bushings that are lubed by your engine's oiling system. Over time the bushings can fail and start binding, and when they do, they make one hell of a squeal.
#32
CF Veteran
Joined: Mar 2010
Posts: 47,923
Likes: 31
From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
Were not there to make that call. Its gonna come back and most likely at the most inconvenient time.
#33
Member
Joined: Feb 2014
Posts: 172
Likes: 0
From: north of the Rio Grande, south of the Red, east of the Pecos, west of the Sabine
Year: 1990
Model: Comanche
Engine: 4.0
Merry Christmas, all y'all........
#35
CF Veteran
Joined: Mar 2010
Posts: 47,923
Likes: 31
From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
Just align timing mark on zero . Remove dist cap if rotors not pointing at the 5 o clock position rotate motor one more 360 degrees . This is done by using a rachet and socket on lower most pulley on the center bolt . Then mark rotor position somewhere on engine . Remove bolt and hold down bracket with a box end wrench lift dist straight up. Note rotor will turn as you lift install new dist in reverse order. Bracket on side of dist must line up over bolt hole the same time rotor lines up with your mark.
#36
Thread Starter
Senior Member
Joined: Apr 2012
Posts: 716
Likes: 0
From: Charlotte, NC
Year: 1994 Jeep Cherokee Sport
Just align timing mark on zero . Remove dist cap if rotors not pointing at the 5 o clock position rotate motor one more 360 degrees . This is done by using a rachet and socket on lower most pulley on the center bolt . Then mark rotor position somewhere on engine . Remove bolt and hold down bracket with a box end wrench lift dist straight up. Note rotor will turn as you lift install new dist in reverse order. Bracket on side of dist must line up over bolt hole the same time rotor lines up with your mark.
And this is the bolt on the crankshaft, correct, so the distributor and crankshaft work together to establish the proper TDC?
#37
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,566
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
#38
CF Veteran
Joined: Aug 2010
Posts: 8,357
Likes: 90
From: Canton, MI
Year: 1999
Model: Cherokee
Engine: 4.0
You're getting a lot of back and forth instructions on what to do concerning removal and installation of your distributor.
Read this thread.
http://www.jeepforum.com/forum/f11/d...es-i6-2840114/
There's photos and FSM instructions on Ditributor R&R.
In my opinion, it is best to remove the electric radiator fan so you can get a direct view of the timing marks and it makes it easier to turn the crankshaft. I've tried looking at the timng marks from below and it was a PITA.
Before removing the distributor - If you remove the distributor cap, rotor, and cam sensor, reinstall the rotor, then rotate the crankshaft to align the timing marks, then drop the 3/16" punch/drill through the alignment holes in the distributor, The rotor should be pointing just past #1 on the distributor (as in the pic in the thread). You are now at #1 TDC and there shouldn't be a need to check it by removing #1 spark plug, etc. If the punch won't drop through both holes, and the rotor is pointing at #6, turn the crankshaft another 360* to realign the timing marks and do it again. Now you know you are at TDC compression #1 piston. Now you can remove the distributor.
Do not move the crankshaft after removal.
To install the new distributor, mark the area around the mount hole like in my pic in the thread (11:00 and 1:00 o'clock), use a screwdriver to align the oil pump drive slot with the 11:00 O'clock mark. Place the punch in the distributor, align the fork on the distributor base with the 1:00 O'clock mark and insert the distributor. It should twist into place, putting the fork directly over the distributor hold-down clamp bolt hole. If it doesn't, try it again. Sometimes you may have to reposition the oil pump drive slot.
Read this thread.
http://www.jeepforum.com/forum/f11/d...es-i6-2840114/
There's photos and FSM instructions on Ditributor R&R.
In my opinion, it is best to remove the electric radiator fan so you can get a direct view of the timing marks and it makes it easier to turn the crankshaft. I've tried looking at the timng marks from below and it was a PITA.
Before removing the distributor - If you remove the distributor cap, rotor, and cam sensor, reinstall the rotor, then rotate the crankshaft to align the timing marks, then drop the 3/16" punch/drill through the alignment holes in the distributor, The rotor should be pointing just past #1 on the distributor (as in the pic in the thread). You are now at #1 TDC and there shouldn't be a need to check it by removing #1 spark plug, etc. If the punch won't drop through both holes, and the rotor is pointing at #6, turn the crankshaft another 360* to realign the timing marks and do it again. Now you know you are at TDC compression #1 piston. Now you can remove the distributor.
Do not move the crankshaft after removal.
To install the new distributor, mark the area around the mount hole like in my pic in the thread (11:00 and 1:00 o'clock), use a screwdriver to align the oil pump drive slot with the 11:00 O'clock mark. Place the punch in the distributor, align the fork on the distributor base with the 1:00 O'clock mark and insert the distributor. It should twist into place, putting the fork directly over the distributor hold-down clamp bolt hole. If it doesn't, try it again. Sometimes you may have to reposition the oil pump drive slot.
Last edited by CCKen; 12-27-2014 at 09:19 AM.
#39
CF Veteran
Joined: Mar 2010
Posts: 47,923
Likes: 31
From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
Removing fans your choice it makes it easier to see the mark but is not absolutely necessary. And yes bolts in center . And camshaft is connected to crank shaft via timing chain. Once you replace the dist you will see how simple it really is .
#40
Thread Starter
Senior Member
Joined: Apr 2012
Posts: 716
Likes: 0
From: Charlotte, NC
Year: 1994 Jeep Cherokee Sport
You're getting a lot of back and forth instructions on what to do concerning removal and installation of your distributor. Read this thread. http://www.jeepforum.com/forum/f11/d...es-i6-2840114/ There's photos and FSM instructions on Ditributor R&R. In my opinion, it is best to remove the electric radiator fan so you can get a direct view of the timing marks and it makes it easier to turn the crankshaft. I've tried looking at the timng marks from below and it was a PITA. Before removing the distributor - If you remove the distributor cap, rotor, and cam sensor, reinstall the rotor, then rotate the crankshaft to align the timing marks, then drop the 3/16" punch/drill through the alignment holes in the distributor, The rotor should be pointing just past #1 on the distributor (as in the pic in the thread). You are now at #1 TDC and there shouldn't be a need to check it by removing #1 spark plug, etc. If the punch won't drop through both holes, and the rotor is pointing at #6, turn the crankshaft another 360* to realign the timing marks and do it again. Now you know you are at TDC compression #1 piston. Now you can remove the distributor. Do not move the crankshaft after removal. To install the new distributor, mark the area around the mount hole like in my pic in the thread (11:00 and 1:00 o'clock), use a screwdriver to align the oil pump drive slot with the 11:00 O'clock mark. Place the punch in the distributor, align the fork on the distributor base with the 1:00 O'clock mark and insert the distributor. It should twist into place, putting the fork directly over the distributor hold-down clamp bolt hole. If it doesn't, try it again. Sometimes you may have to reposition the oil pump drive slot.
#41
Thread Starter
Senior Member
Joined: Apr 2012
Posts: 716
Likes: 0
From: Charlotte, NC
Year: 1994 Jeep Cherokee Sport
I just hate having to move the fan because it's new and there's a bolt in the center, which makes it difficult to remove. I definitely can see the markings with it in the way.
Also, I can't even remove the cam sensor, it's stuck. Should I spray Wd-40 on it?
Also, I can't even remove the cam sensor, it's stuck. Should I spray Wd-40 on it?
#42
Thread Starter
Senior Member
Joined: Apr 2012
Posts: 716
Likes: 0
From: Charlotte, NC
Year: 1994 Jeep Cherokee Sport
But it seems like the order of things is a hindrance since I can't remove the cam sensor...
#43
I don't want to sound like someone who discourages others from an adventure, but from your posts it seems like you are really struggling with basic identification and technique. As good as the advice can be in this forum, it may not be enough to successfully talk you through an operation with the details that this one demands. Please consider carefully what options you are willing to accept if you make an error and disable your DD.
#44
CF Veteran
Joined: Mar 2010
Posts: 47,923
Likes: 31
From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
I just hate having to move the fan because it's new and there's a bolt in the center, which makes it difficult to remove. I definitely can see the markings with it in the way.
Also, I can't even remove the cam sensor, it's stuck. Should I spray Wd-40 on it?
Also, I can't even remove the cam sensor, it's stuck. Should I spray Wd-40 on it?