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Old 11-27-2011, 10:54 AM   #1
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oil pump drive

36,000 miles ago the oil pump drive started squeeling, replaced it. At 71,000 miles that one is making a whine, I've been using Duralube with every oil change since replacing the first one. Here's the question for you techs, On the under side of the housing is a hole that is plugged. This used to be where a grease zert used to be in older engines, because they knew it needed to be greased, because they knew it did not get oiled properly by the engine. Did something change like sealed bearings or a bushing used, that these can no longer be greased? Or can the plug be removed and zerted to be greased to make them last longer?

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Old 11-27-2011, 10:59 AM   #2
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There are a few threads on various Jeep forums around the Internet on this issue which affects '05/'06 4.0L engines. I'm not sure what can be done since the factory changed something starting in '05 that causes the problem. Some claim it's caused by the lack of ZDDP in modern engine oils and adding extra ZDDP to the motor oil helps but I don't buy that since '04 and older TJ 4.0L engines don't have the problem.

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Old 11-27-2011, 11:29 AM   #3
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Thx Jerry. I have the old one and may need to tear it appart to find out whats in there. But was hoping someone may have already done this and save me the time. It seems like a simple fix pulling the mini freeze plug and putting a grease zert in it. But would not work if they use sealed type bearings or a brass or plastic bushing. I tried to put oil next to the shaft in the top, but it has a seal there to keep engine oil from getting out and dust from getting into the engine.
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Old 11-27-2011, 11:29 AM   #4
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ths is called the OPDA. it is a recall on our 05 n 06 wranglers. here is some info on this. you also can google it up and get a few vids on it as well. there is a great write up on jeepforum on how to drill n put a zirk fitting in. also how to have grooves cut into the shaft allowing oil to lube it.

OPDA/Camshaft Synchronizer shaft problem (TSB E05R) consolidated REGISTRY please sign - JeepForum.com

Chrysler is paying to install a new cam (2005/2006 owners should read this) - JeepForum.com
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Old 11-27-2011, 08:04 PM   #5
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Originally Posted by 06BlackRubie View Post
Thx Jerry. I have the old one and may need to tear it appart to find out whats in there. But was hoping someone may have already done this and save me the time. It seems like a simple fix pulling the mini freeze plug and putting a grease zert in it. But would not work if they use sealed type bearings or a brass or plastic bushing. I tried to put oil next to the shaft in the top, but it has a seal there to keep engine oil from getting out and dust from getting into the engine.
You're looking for the FOGMOD.
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Old 11-27-2011, 09:55 PM   #6
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ths is called the OPDA. it is a recall on our 05 n 06 wranglers. here is some info on this. you also can google it up and get a few vids on it as well. there is a great write up on jeepforum on how to drill n put a zirk fitting in. also how to have grooves cut into the shaft allowing oil to lube it.

OPDA/Camshaft Synchronizer shaft problem (TSB E05R) consolidated REGISTRY please sign - JeepForum.com

Chrysler is paying to install a new cam (2005/2006 owners should read this) - JeepForum.com
Just to clarify.....even though all 05-06 wranglers are having the issue, the official "recall" was only for wranglers built in Jan and Fed of 2005. Mine was built in March of 05 and had the gear fail and Jeep wouldnt do squat since it didnt fall under the official recall.
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Old 11-28-2011, 06:22 PM   #7
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Just to clarify.....even though all 05-06 wranglers are having the issue, the official "recall" was only for wranglers built in Jan and Fed of 2005. Mine was built in March of 05 and had the gear fail and Jeep wouldnt do squat since it didnt fall under the official recall.
thats right, i forgot all about that. mine luckly fell under the date. i think the part that was replaced must have the cuts in it needed to let the oil pass up the shaft n cool and lube it. mine hasnt failed yet and it has 75K on it. i also heard this part is on backorder?
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Old 11-29-2011, 05:50 PM   #8
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I started my "05 Unlimited yesterday morning and a horrible sqealing sound was coming from the camshaft synchronizer. I pulled it and found it was very difficult to turn, by hand. The gear showed signs of wear and the bushing acted like they were galled. I began a search for an '05 Cam Syn. and only came up with '04 cam syn's. I will now be talking with my local dealer about the recall; however, if they don't honor the recall, will the '04 cam syn work?
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Old 11-29-2011, 06:00 PM   #9
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i dont think it will, i have called and asked about this befor and they said it wouldnt work. but then again i asked them to check my recall and they argued with me for 5 mins sayin wranglers dont have recalls. but when he checked the vin sure enough, i have a recall and has been serviced once already. do they have to keep replacing this part for free even if they have done it once already is my ?
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Old 11-29-2011, 07:00 PM   #10
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Hello to all.... after reading the hunderads of posts and looking over the wonderful photos everyone has taken I'm still left with 1 question. Is the new sensor P#CDC0E051AB (Cam Sensor and Oil pump Drive Gear Package) that my dealer has informed me will be used on my 2005 TJ due to a recall going to be a "GOOD" replacement part. currently I have around 77K miles and have no problems with whats in there. Went to the dealer today, jeep was placed on a DRB III scan tool and was told that I had 1deg of "SLOP" in relationship to the cam/oil gear. Was told that they were still going to replace it due to the recall but would take about 3-4 days for the part to show up.

After reading all this information and being put into information overload I'm left wondering "Is the new part there puting in going to be good"?????
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Old 11-29-2011, 07:10 PM   #11
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Hello to all.... after reading the hunderads of posts and looking over the wonderful photos everyone has taken I'm still left with 1 question. Is the new sensor P#CDC0E051AB (Cam Sensor and Oil pump Drive Gear Package) that my dealer has informed me will be used on my 2005 TJ due to a recall going to be a "GOOD" replacement part. currently I have around 77K miles and have no problems with whats in there. Went to the dealer today, jeep was placed on a DRB III scan tool and was told that I had 1deg of "SLOP" in relationship to the cam/oil gear. Was told that they were still going to replace it due to the recall but would take about 3-4 days for the part to show up.

After reading all this information and being put into information overload I'm left wondering "Is the new part there puting in going to be good"?????
mine was replaced at around 50K miles, i now have 127K on mine n it hasnt given me any problems yet
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Old 11-29-2011, 10:15 PM   #12
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Hello to all.... after reading the hunderads of posts and looking over the wonderful photos everyone has taken I'm still left with 1 question. Is the new sensor P#CDC0E051AB (Cam Sensor and Oil pump Drive Gear Package) that my dealer has informed me will be used on my 2005 TJ due to a recall going to be a "GOOD" replacement part. currently I have around 77K miles and have no problems with whats in there. Went to the dealer today, jeep was placed on a DRB III scan tool and was told that I had 1deg of "SLOP" in relationship to the cam/oil gear. Was told that they were still going to replace it due to the recall but would take about 3-4 days for the part to show up.

After reading all this information and being put into information overload I'm left wondering "Is the new part there puting in going to be good"?????
They have not changed the new parts any on the replacement opda. I replaced mine at 30,800 miles & it is exactly the same as the one I pulled out. Luckily I read about this problem & pulled it early enough that it had a small amount of abnormal wear on the gear on the opda. The can gear was not hurt. I fog modded my new opda before installation.
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Old 11-29-2011, 10:20 PM   #13
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what is the fog mod??
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Old 11-30-2011, 05:46 PM   #14
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My Bumper to Bumper parts store cannot find an exact replacement for my '05 Unlimited camshaft sync., so I'm going to order an '04 and hope for the best. I have looked at all of the popular parts sites and can't seem to find one. Wish me luck.
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Old 11-30-2011, 05:57 PM   #15
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Im 90% sure that an 04 will not work....
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Old 12-01-2011, 04:46 AM   #16
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I would like to thank all for your help. The Fog Modification link was what I was looking for and gave me a some ideas to go by, to fix this factory messed up situation. There are some simpler ways to do what he did with the OPDA right in the vehicle. Using a right angle drill with a short bit, drill all the way through - in the same spot he put his zerk - to the shaft and slightly into the shaft. This is not going to hurt it any more than the channels he and others have done on the shafts and the slight burr caused between the bushing and shaft is going to be minor due to the close fit between them. Use a 7/64" bit as a starter and go into the shaft then the 13/64 inch bit into the bushing. Thread the outer hole with the 1/4" 28 thread tap just as he did and put a short thread zerk allowing grease to enter the resevoir and into the place it is needed between the shaft and bushing. As he said that plug will pop out when pressured by the grease. a quick fix is to mark the housing and engine block and the timing wheel to the sensor. Loosen the hold down bolt and turn the unit to the counter clockwise as far as it goes and snug the bolt to hold it there. get some steel wool and score that whole area around that plug and in the hole. Get a tube of that two part sets in 5 minute for aluminum puddy, mix and plug it up good. turn the housing back to where it needs to be and start the drilling and taping part. 20 minutes and you're done.
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Old 12-01-2011, 07:11 AM   #17
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Quote:
Originally Posted by Ladderslug
My Bumper to Bumper parts store cannot find an exact replacement for my '05 Unlimited camshaft sync., so I'm going to order an '04 and hope for the best. I have looked at all of the popular parts sites and can't seem to find one. Wish me luck.
04 won't work. If it did, us 05 and 06 guys would be all over it. You have to buy it online at dodge-wholesale.com or from the dealer. About $120 for opda and $3 for the gasket.
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Old 12-01-2011, 08:18 AM   #18
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Just so you know, it is NOT a recalled part. There is a TSB out for it, which really only tells the dealer how to fix it.
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Old 12-01-2011, 12:41 PM   #19
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I have no clue, the links are williediller, so where fogmod came in I don't know. Those links really helped. I'm going a bit different route for mine... as you see in the last post I put in.
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Old 12-01-2011, 01:04 PM   #20
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04 won't work. If it did, us 05 and 06 guys would be all over it. You have to buy it online at dodge-wholesale.com or from the dealer. About $120 for opda and $3 for the gasket.
Thanks for the info. I was gonna order the cam sync. today. I'll head over to the recommended site and get the correct part. Thanks again for your help.
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Old 12-01-2011, 01:18 PM   #21
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Just some things to think about. The suggested AEROSHELL 33MS grease should be used when doing this modification, as well as the Mobile 1 5W-40W Turbo Diesel Truck Synthetic oil. Those properties are added protection for these motors. When putting in the grease only 2 pumps of the handle should be enough. If using the small type grease gun maybe 3 squeezes. The over filling will cause an over flow of the hot liquified grease as noted in one of the photo's Williediller showed, this can get on the sensor and too much may cause problems. If your OPDA is making noise before doing a modification, the shaft and bushing are scored, so pulling it and checking how bad is a must do, and check the gear ware. If you see build up from metal binding it can be removed with a emory paper, just be carful not to remove too much, only the high spots, the pits are ok and will fill with grease. It is truely strange that the seal in the upper part is only designed to keep oil in the engine. If you look at the cut outs the grease channel has no way for the grease to even get near the shaft. That press fit bushing has no groves or holes, so making a small hole is needed / required.
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Old 12-01-2011, 01:36 PM   #22
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Sorry, it is Williedigger not Williediller that did those posts. I suggest every one needs this modification done before replacing it with a new one, if putting a new one in do this modification first and get the right high grade grease and change the oil if not already using what is suggeted. Prevent future problems by learning from others mistakes and failures.
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Old 12-01-2011, 02:00 PM   #23
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As a courtesy the parts numbers for my '05 replacement OPDA --- 5301 0624AC
Seal --- J3181288
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Old 12-11-2011, 07:35 AM   #24
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I installed the new OPDA and now the Jeep labors to start and when the throttle is floored the engine lugs, revs, lugs, revs ect. At idle it runs smooth and sounds good. I'm going to try to turn the rotor 180* and see if I might have placed it in wrong. The unit was shipped with a white, plastic peg that kept the unit from spinning. I left it in place until I had it fully installed so I figured it was in the correct position. We'll soon find out. I'm just waiting for it to warm up this morning before working on it.
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Old 12-11-2011, 10:26 AM   #25
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I installed the new OPDA and now the Jeep labors to start and when the throttle is floored the engine lugs, revs, lugs, revs ect. At idle it runs smooth and sounds good. I'm going to try to turn the rotor 180* and see if I might have placed it in wrong. The unit was shipped with a white, plastic peg that kept the unit from spinning. I left it in place until I had it fully installed so I figured it was in the correct position. We'll soon find out. I'm just waiting for it to warm up this morning before working on it.
Did you have cylinder 1 at TDC on the compression stroke? That's what that white plastic peg does. It makes sure the cam sensor is set properly for cylinder 1 at TDC on compression stroke. Spinning it 180 degrees will more than likely cause your Jeep not to start. The cam sensor controls the fuel injectors timing so unless you have it set just right your Jeep will not run correctly.
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Old 12-11-2011, 10:47 PM   #26
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Did you have cylinder 1 at TDC on the compression stroke? That's what that white plastic peg does. It makes sure the cam sensor is set properly for cylinder 1 at TDC on compression stroke. Spinning it 180 degrees will more than likely cause your Jeep not to start. The cam sensor controls the fuel injectors timing so unless you have it set just right your Jeep will not run correctly.
Nope. I didn't know to do that. I'll bet that's the problem. Thanks for the info. This site is super helpful!
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Old 12-14-2011, 10:33 PM   #27
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Did you have cylinder 1 at TDC on the compression stroke? That's what that white plastic peg does. It makes sure the cam sensor is set properly for cylinder 1 at TDC on compression stroke. Spinning it 180 degrees will more than likely cause your Jeep not to start. The cam sensor controls the fuel injectors timing so unless you have it set just right your Jeep will not run correctly.
That was the problem. Once I put Cylinder 1 on the compression stroke and TDC everything went into place and the engine runs great. Thanks again for the info.
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Old 12-14-2011, 11:35 PM   #28
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No problem!
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Old 12-15-2011, 06:13 PM   #29
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It is willydigger. His thread is the best. The first page has a TON of info. Go here 2005-06 Jeep OPDA_CPS_Distributor Failure - JeepForum.com

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