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Topic Review (Newest First)
08-19-2014 11:56 AM
NCWranglerX How do you check to see if it's bad? My jeep is doing this https://m.youtube.com/watch?v=yR33TJM06Mk currently and I was pointed in this direction.
08-15-2014 03:11 PM
FTI76 Yeah it is looking like I will. No sense being penny wise and pound foolish.
08-15-2014 12:03 PM
malligator
Quote:
Originally Posted by FTI76 View Post
I bought a 2005 Wrangler with 70,000 miles about a month ago, I wasn't aware of this issue so of course this thread put me into a panic. I located the TSB which states about 16,000 vehicles were affected. I called Jeep with my VIN and they said the TSB is not listed for my Wrangler. Does this mean I am in the clear with this? I see the crown replacement OPDA is about $100, I wouldn't feel comfortable doing this job myself so I would also have to pay for labor. Does anybody have any input? Thanks!
My '06 LJ was perfectly fine until I cranked it up one evening and heard laughing monkeys under my hood. It's easy to check and I would do it if I were you for peace of mind.
08-15-2014 11:36 AM
FTI76 I bought a 2005 Wrangler with 70,000 miles about a month ago, I wasn't aware of this issue so of course this thread put me into a panic. I located the TSB which states about 16,000 vehicles were affected. I called Jeep with my VIN and they said the TSB is not listed for my Wrangler. Does this mean I am in the clear with this? I see the crown replacement OPDA is about $100, I wouldn't feel comfortable doing this job myself so I would also have to pay for labor. Does anybody have any input? Thanks!
06-24-2014 12:36 PM
ecam Crown Automotive just released an updated OPDA under part # 53010624ac. Moved the seal above the bearings.
01-07-2013 10:33 PM
Bonita I have a 2006 4.0 Unlimited with 126,000 miles. My husband hates it when I read this forum and find things like this. Then I ask him to check it or show me how to check it. I am the second owner - don't know if it was checked or replaced before. Guess he is going to give me 'the look' tomorrow.
He has a '98 CJ (Hiding behind mine!)
05-30-2012 06:27 PM
-sean-
Quote:
Originally Posted by rubi 4 my mrs View Post
that has nothing to do with the present opda issues.
x2
05-30-2012 05:55 PM
RUBI 4 MY MRS To clarify, that is a reference to a TSB for SOME early '05 TJs. It was for ones with specific build dates AND 8 in the 8th position. Meaning only 4.0s within those build dates. That has nothing to do with the present OPDA issues. It was to replace some faulty gears. My LJ falls within those dates & had the gear replaced. In just over 20k miles there was some shaft binding & the replacement gear had excessive & uneven wear.
05-30-2012 02:57 PM
Dusty Rhodes I just want to mention concerning the OPDA that there is a link in this string which says the 8th alpha-numeric position of the VIN number, if it is an "S" indicates a potentially faulty OPDA. This is incorrect according to the Jeep/Chrysler Service Shop Manual for the 2006 model year.

According to the manual it states that an "S" in the 8th position merely indicates that the jeep came from the factory, with a 4.0 I6 engine. The only other number/letter possibility for the 8th position in the VIN is a "B" which designates a 2.4 I4 engine. Only an S and a B were used in the 8th position.

In all probability, something this simple would likely translate to all of the TJ years.

I am not trying to minimize the OPDA problem, but merely trying to clarify what I read in the manual.
05-30-2012 12:36 PM
Rayko 05 with 90K on it. No problems, my mech pulled it yesterday morning and said it was OK.
05-30-2012 09:13 AM
-sean- Just a thought:
Consider the OPDA to be much like a timing belt. It could last the life of the vehicle without failing and most will. But if it does fail, it could be very expensive to fix depending on the other damage it causes when it does.
It is relatively cheap and is about as difficult as changing spark plugs to replace.
05-29-2012 09:41 PM
crisjacof I got 66k on mine and no problems, I'll check it soon. Just to be on the safe side.
05-29-2012 08:45 PM
Rubicon2
Quote:
Originally Posted by silver rubi
how do you check to see if it has premature wear? I have a 2006 Rubicon with 200000 miles on it.
Ha I would say you're most likely in the clear with 200,000 miles. Unless you meant 20,000.
05-29-2012 08:29 PM
silver rubi how do you check to see if it has premature wear? I have a 2006 Rubicon with 200000 miles on it.
05-29-2012 02:20 PM
JustinCHorst
Quote:
Originally Posted by booty900 View Post
I might be buying an 06 LJ with 103,000 miles on it. Can I be pretty confident I won't have this problem?
Best to pull it and check it out...odds are if it hasnt been replaced you will need a new unit that is modded. Wouldnt stop me from getting it by any means but just make sure you look at it.
05-29-2012 10:59 AM
SeVeReDiStOrTiOn right on..thanks
05-28-2012 11:25 PM
RUBI 4 MY MRS Punch the pin out & slide the gear off & the shaft comes right out. At least lube the shaft & top bushing with some oil if putting it back in for now. WHATEVER YOU DO, MARK THE GEAR POSITION. IT MAY LOOK LIKE IT GOES BACK ON EITHER WAY BUT THE HOLE IS SLIGHTLY OFF CENTER & IF YOU TAP THE PIN BACK IN IN THE WRONG POSITION IT WILL BREAK THE GEAR EASIER THAN YOU MIGHT THINK!!!!!!!!!! If you already have it off without marking just know it has to line up exactly & if you try it both ways it will be obvious which way it goes.
05-28-2012 10:14 PM
SeVeReDiStOrTiOn Does that roll pin just punch out? I didn't remove the target wheel because I wasn't sure it the pin was reuseable.
05-28-2012 05:21 PM
-sean- Post up a pic of the shaft itself, that is where I had issues.

My new/modded OPDA cured my rough idle issue.
05-28-2012 01:26 PM
SeVeReDiStOrTiOn So yea I pulled mine a few minutes ago and at 57k there's a lot of wear...i'm going to replace it as soon as I can. I ended up putting a light coat of marine grease on the OPDA to cam gear. I don't think it'll help put you never know and it's a light enough coat that there shouldn't be any probs. A few pics..



Wear on OPDA gear



Wear on cam gear...could this cause my low and rough idle?



The seal under the target wheel seems to be getting lubed with oil but it's hard to tell in tyhe pic. The shaft spins easily but the wear worries me.
05-28-2012 11:36 AM
SeVeReDiStOrTiOn I'm going to pull mine and check/lube it today. Is there a certain lube I should use and which bearing/part of the shaft should I concentrate on? I have some marine grade grease that I used on my slip yoke...I also have a jar of knickel anti-seize floating around.
05-15-2012 12:21 PM
div4gold
Quote:
Originally Posted by TJDiver View Post
Just re re-ask a question i saw posted, is this an 06 2.4L problem, if so id like to know as i have my transmission and transfer case out right now, and would like to do any engine work before i reinstall. Thank you in advance!
4.0 6 cyl.
05-15-2012 12:14 AM
TJDiver Just re re-ask a question i saw posted, is this an 06 2.4L problem, if so id like to know as i have my transmission and transfer case out right now, and would like to do any engine work before i reinstall. Thank you in advance!
05-14-2012 11:45 PM
booty900 I might be buying an 06 LJ with 103,000 miles on it. Can I be pretty confident I won't have this problem?
05-14-2012 10:22 PM
Beaker541 Attachment 122804

My final mod.. Abnormal wear on my original and had 44000.. Cam gear worn slightly but did not replace cam gear
05-14-2012 10:18 PM
Beaker541
Quote:
Originally Posted by RUBI 4 MY MRS
No!
Haha Rubi.. Same stuff different day huh
05-14-2012 07:43 PM
Bentley Jeeper Sorry I couldn't load the pictures of Customized OPDA so please see website:

Check out my website & look on the last page called "JEEP" for pictures & info.
www.bentleycycle.net
05-14-2012 06:33 PM
Bentley Jeeper My mechanic checked my 2005 Jeep TJ's OPDA at 58,000 km (Canada) & it had abnormal wear, so replaced it with new but customized OPDA.
The upper end/top bushing can't get any lube due to the oil seal being beneath the bushing. Just a matter of time & I wasn't going to take a chance, so called in my son-in-law & his father for the cure/fix. OPDA was taken to an elderly machinist who did an excellent job of the customizing!
- The custom upgrade included machining the casing to insert a larger brass bushing for the sealed bearing to fit into & then another small brass bushing to fit inside the sealed bearing to allow a proper fit for the shaft to slip through - working great so far & oil pressure is up.
Also added 10W40 Amsoil high zinc oil, which also helped the oil pressure & protection for the hot running 4lt / in line 6cyl motor.
Now much more relaxed when driving my Jeep!

Please email me for pictures & video explaining the procedure.

bentleycycle@shaw.ca
Grant - "Bentley Jeeper"
03-26-2012 09:27 PM
RUBI 4 MY MRS No!
03-26-2012 08:25 PM
SilverTJMike 2 05's a TJ and a LJ, 76 and 106K respectively. No wear on either. 4.0 always seem to have high oil pressure from my experience. Did Chrysler ever fix this issue with a new OPDA?
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