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Unread 08-30-2011, 11:55 AM   #1906
Slugger
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[QUOTE=willydigger;12098131]Can't say the overtightening idea didn't cross my mind. Then it went to machining of the OPDA mating surface and position relative to the block. While I've done several FogMod's, I've only installed (not including mine) three. One was so tight I needed a 6-point. The other two were manageable. I saw no difference in OPDA quality and like mentioned earlier, overtightening would impact the retention clamp once the housing seats.

Just a shot in the dark, I guessed it couldn't be that simple.

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Unread 08-30-2011, 11:58 AM   #1907
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Quote:
Originally Posted by JV05TJ View Post
Would a knocking sound be a symptom of this issue? I'm about 90% sure its coming from my opda just b/c and put my hand on the cap and felt the vibrations but since im not a mechanic i accept the fact i could be wrong
Knocking is not a typical sound associated with a bad OPDA. That said, anything is possible with these. Anyone with a ’05 or ’06 4.0L is smart to pull theirs & inspect it. It’s a simple procedure that may well save you an engine failure. Inspection includes removing the gear & the shaft. Everything is on page 1.
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Unread 08-30-2011, 12:47 PM   #1908
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Quote:
Originally Posted by JV05TJ
Would a knocking sound be a symptom of this issue? I'm about 90% sure its coming from my opda just b/c and put my hand on the cap and felt the vibrations but since im not a mechanic i accept the fact i could be wrong
Mine was tapping/knocking which lead me to pull and check it. I had no other symptoms and my gear wear was very minimal. I guess tapping is normal with these p.o.s.'s
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Unread 08-31-2011, 08:12 AM   #1909
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What you are hearing is piston slap/lifters not fullly priming up. All of this is very normal for a 4.0L/2.5L My 95 4 banger sounded like a knock but, upon further inspection I found it coming from the cam area and it was doing this a 75k and countinued all the way up to 250k and ran just fine and before I sold it I put a new oil pan gasket and sending unit in it and the thing looked good. I would not worry about it unless its just a god awful knock and you will know when that happens. This OPDA thing might be of concern but, mine is running just fine at 86k and I have two other buddies I work with one has 50k and the other almost 100k and no problems with them either. I think this is a isolated case and people have blown this out of the water. Out of 500,000 Jeeps it might have affected 1,000 which is not enough to be worried about if you ask me. If it happens it happens hell drop a stroker in that ***** and be done with it. I woudn't be pulling OPDA'S out to check if you don't have a problem. How are you going to sync it back 100% without a scan tool? You know gears wear in a pattern right? To me your looking for trouble when you **** with something that don't need to be ****ed with. If its running fine leave the bastard alone.
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Unread 08-31-2011, 08:24 AM   #1910
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Funny how my knocking noise has all but vannished since replacing my OPDA. If I didn't replace it and it did blow up, does Napa sell a stroker kit off the shelf that I can install in a campground with minimal tools? Is the stroker less than $140?

I find your comments short sighted and ill researched.
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Unread 08-31-2011, 09:08 AM   #1911
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Quote:
Originally Posted by unlimitedlj
I woudn't be pulling OPDA'S out to check if you don't have a problem. How are you going to sync it back 100% without a scan tool? You know gears wear in a pattern right? To me your looking for trouble when you **** with something that don't need to be ****ed with. If its running fine leave the bastard alone.
Everyone is entitled to an opinion, but you are an idiot if you don't take the time to pull and inspect yours. If you had any reading comprehension at all, you'd know that pulling and properly reinstalling the OPDA is a walk in the park and could save anyone who does it thousands of dollars. I've see you post some stupid things in the past, but I think this takes the grand prize.

I've said it before and I'm saying it again regarding your posts
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Unread 08-31-2011, 09:16 AM   #1912
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Quote:
Originally Posted by ChicagoRod View Post
does Napa sell a stroker kit off the shelf that I can install in a campground with minimal tools? Is the stroker less than $140?
no, but we can dream
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Unread 08-31-2011, 09:23 AM   #1913
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Quote:
Originally Posted by unlimitedlj
What you are hearing is piston slap/lifters not fullly priming up. All of this is very normal for a 4.0L/2.5L
You are 100% wrong dude. The opda was tap tap tapping away and stopped once I replaced it with a new one. You could hear and feel it tapping in the unit which was what lead me to the opda threads and JF when I bought the thing.
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Unread 08-31-2011, 09:24 AM   #1914
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Originally Posted by flying_bosun View Post
Everyone is entitled to an opinion, but you are an idiot if you don't take the time to pull and inspect yours.
Lol, I have no intention of pulling and inspecting mine, so that makes me an idiot. There are also tens of thousands of others that will never know they have this "issue".

I won't tell you not to pull your OPDA, that's your deal. But I'm now at 92,000 miles with no problems, I feel like I'd be an idiot to pull it and check for no reason other than to satisfy some random-person-on-the-internet's curiosity.

Has anyone posted a poll to determine how many people even on this limited website have this issue? I'd like to know how many miles people are at and if they've have any issues related to the OPDA. So far, I feel like we have very little data, other than a few catastrophic failures.
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Unread 08-31-2011, 09:45 AM   #1915
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Originally Posted by Shakey View Post
Has anyone posted a poll to determine how many people even on this limited website have this issue? I'd like to know how many miles people are at and if they've have any issues related to the OPDA. So far, I feel like we have very little data, other than a few catastrophic failures.
Start one, I would like to see results
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Unread 08-31-2011, 09:50 AM   #1916
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Or get this one going again.

http://www.jeepforum.com/forum/f9/po...6-tjs-ljs.html

Sticking your head in the sand and hoping for the best, has never been a very good plan.
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Unread 08-31-2011, 09:52 AM   #1917
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Here's more.

http://www.jeepforum.com/forum/f9/op...wners-1176879/

http://www.jeepforum.com/forum/f9/20...issue-1114837/
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Unread 08-31-2011, 09:55 AM   #1918
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http://www.jeepforum.com/forum/f9/op...-sign-1084723/

Here is one I found a while ago it has six pages of people showing there problems
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Unread 08-31-2011, 09:55 AM   #1919
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Quote:
Originally Posted by Rubi4MyMrs View Post
If you post more photos give us some of the cutaway showing the lower bushing area as well as letting us know if there was any evidence of oil getting into the area above the lower bushing & if so, how far up. Thanks.
The shaft at the lower bushing definitely shows wear and it seems to be greater at the top of the bushing.



Looks like some evidence of excessive heat in the top mm of the lower bushing, but the cleanliness of the inside of the housing between the top of the bushing and just below the upper terminus of the oil channels makes me think that at least some lube was getting up there.

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Unread 08-31-2011, 10:05 AM   #1920
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Lol, I have no intention of pulling and inspecting mine, so that makes me an idiot. There are also tens of thousands of others that will never know they have this "issue".

I won't tell you not to pull your OPDA, that's your deal. But I'm now at 92,000 miles with no problems, I feel like I'd be an idiot to pull it and check for no reason other than to satisfy some random-person-on-the-internet's curiosity.
That's well and fine, you can calculate the cost/benefit of inspection for yourself, but no one here has asked anyone else to pull theirs out of curiosity; it's been recommended as a preventative. BTW, mine was fine until a couple of thousand miles ago and then one day "poof" went the OPDA and cam. Good luck with yours.
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[QUOTE=Ron Paul]“Liberty is lost through complacency and a subservient mindset. When we accept or even welcome automobile checkpoints, random searches, mandatory identification cards, and paramilitary police in our streets, we have lost a vital part of our American heritage. America was born of protest, revolution, and mistrust of government. Subservient societies neither maintain nor deserve freedom for long.”
― Ron Paul[/QUOTE]

[CENTER][SIZE="5"]"Did [I]you[/I] exchange your walk-on part in the war for a lead role in a cage?"[/SIZE][/CENTER]
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