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Unread 05-21-2012, 05:00 PM   #3226
Bigbob
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Quote:
Originally Posted by RaggedOleMan View Post
I bought a 1/4 x 28 - 30° Zerk, that I'm going to install. It "should" clear as it threads in, as long as the tapped hole is as low on that shoulder as possible. The 30° will give ample room for the grease gun. Yes, I tried for a flush fit Zerk I could access with a needle attachment, but after going to Fastenall, Tacoma Screw, Williams Oil Filter and 2 NAPA stores, and not finding one, I gave up and went with the 30° 1/4 x 28 Zerk. I'm going to install it on the old one as a model first, then into the new one if it all checks out.

That said, I'm not discounting the oil bath just yet. And, I would like to send a new shaft to one of you skilled & talented guys to machine in an oil groove for me. PM me with how much you want for it, or post up the charge/cost of machining if you want to. In the mean time, I'll live with the 30° Zerk. I'll keep checking this thread for continued updates. Thanks again, guys...

~John/Puyallup, WA
Are you putting the 30 degree zerk in the stock plug area? If so you may want to re-clock the housing.

No need for an oil groove.

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Unread 05-21-2012, 05:42 PM   #3227
RaggedOleMan
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Quote:
Originally Posted by Bigbob View Post
Are you putting the 30 degree zerk in the stock plug area? If so you may want to re-clock the housing.

No need for an oil groove.
No, I'm putting it where WillyDigger did.
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Unread 05-21-2012, 05:47 PM   #3228
Bigbob
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Originally Posted by RaggedOleMan View Post
No, I'm putting it where WillyDigger did.
Should work fine. When I had the fogmod I got lucky and found a long straight 1/4" 28 fitting. Made life easy. Do try and drill the hole as low as you dare go.
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Unread 05-21-2012, 05:50 PM   #3229
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I got my Wrangler out of storage and got her running this weekend.

No laughing monkeys or strange noises whatsoever. I didn't have time to try and pull the OPDA to inspect it, mainly because I was driving it. lol

I did look over the outside of the OPDA and could not find anything to identify it, such as the LDI sticker I've seen in many pictures in this thread. Could it be the sticker is on the side closest to the engine block? I felt around and it didn't feel like it had one. Is this common to not have a sticker?

I also went to the Jeep website and plugged in my VIN to see if there were any recalls--there is not. In fact, in seven years of ownership I've never received a recall notice. I checked the sticker in the door opening and it says it was built 2/05. Were all Wrangler's with OPDA problems notified of a recall?

Thanks,
Tom
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Unread 05-21-2012, 07:45 PM   #3230
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For the pressurized oil guys out there ... and please forgive me if I missed it over the months that I've been following this thread

Has anyone tried running "barely pressurized" oil into the housing at the typical FogMod zerk/oil-cup location with a return line off of the factory fill port?

I would think that that would eliminate the need to remove the seal while guaranteeing sufficient, but not excess, oil.
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Unread 05-21-2012, 07:45 PM   #3231
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It wasn't a recall. There was a TSB for dealers to check certain early ones. Most were still at dealers & so some original owners probably didn't know of the TSB. It was for bad gears & not to do with present issues. Mine got a new gear but has had binding & excessive gear wear. (less than 20K miles) My OPDA had has the label positioned so I can't see it when installed either & it is not a stick on but "painted" on. Can't feel is at all.
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Unread 05-21-2012, 08:55 PM   #3232
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Does sound anything like the OPDA going bad? I just bought this Jeep 2 days ago and figured the noise was an easy fix, especially for the price.

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Unread 05-21-2012, 09:00 PM   #3233
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Quote:
Originally Posted by Falcor View Post
Does sound anything like the OPDA going bad? I just bought this Jeep 2 days ago and figured the noise was an easy fix, especially for the price.

http://www.youtube.com/watch?v=5MxirJyouq4
Yes. Bring it back to the place you bought it from.
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Unread 05-21-2012, 09:19 PM   #3234
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Quick question: Since the top bushing is porous, has anyone determined (with the right grease ex:Aeroshell ) if the shaft gets sufficiently lubricated w/o drilling a hole through the bushing? I realize that just because original design didn't have the bushing hole doesn't necessarily mean it was a sufficient. Does anyone know what type of grease the original design used?
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Unread 05-21-2012, 09:32 PM   #3235
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Quote:
Originally Posted by -JD- View Post
For the pressurized oil guys out there ... and please forgive me if I missed it over the months that I've been following this thread

Has anyone tried running "barely pressurized" oil into the housing at the typical FogMod zerk/oil-cup location with a return line off of the factory fill port?

I would think that that would eliminate the need to remove the seal while guaranteeing sufficient, but not excess, oil.
Yes, no, maybe so.

I think if you can get a very slow flow that would indeed work. You only need like a drop every 5 miles or so! I thought about just letting it flow out the top and have a drain in the housing that could flow past the mid seal into the lower bushing area. Rube Goldberg was a saint you know. (Google if you are under 50) One of my big intentions was to get added oil to the gear. I'm still gonna get her done eventually.
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Unread 05-21-2012, 10:38 PM   #3236
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Yes, after listening to that clip it's far from decisive to me, too. I chased so many squeaks, squeals, chirps, thumps, clunks, ding's since I've owned a Jeep...the chirp that I believe is my OPDA has yet to be resolved as my parts still haven't arrived. But in chasing that "chirp" or screaming monkeys, I changed out my fan belt twice, the belt tensioner, and the pulley adjacent to the belt tensioner. The chirp always returned like a whack-a-mole. You have no idea how pleased I will be if indeed this fix solves it.

To the person who just bought a Jeep with a chirp a few days ago, life ain't over. I bought my Jeep brand new in 2005. It currently has over 165,000 on it, and I'm just now getting to the OPDA issue. My Jeep has been the best, most reliable vehicle I've ever owned. And, the most fun...
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Unread 05-21-2012, 10:49 PM   #3237
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Quote:
Originally Posted by -JD- View Post
For the pressurized oil guys out there ... and please forgive me if I missed it over the months that I've been following this thread

Has anyone tried running "barely pressurized" oil into the housing at the typical FogMod zerk/oil-cup location with a return line off of the factory fill port?

I would think that that would eliminate the need to remove the seal while guaranteeing sufficient, but not excess, oil.
I useed BigBobs pressurized oil system, piped to the original factory grease port, and regulated the flow with a 1/4" valve. I piped(hose) a drain to catch any excess, from the hole in the OPDA(not to the alignment port) to the oil dipstick tube. I also defeated the oil seal. It has been in for about a month without any problems , so far. I have run it without the cap on and checked on oil flow at idle, it has a steady flow of oil coming from the top of the shaft. I may just leave the damn thing in place till the cows come home. Not to concerned about "venting" as the OPDA already has the alignment port open.
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Unread 05-22-2012, 04:02 PM   #3238
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Replaced Mine

This is what my OEM unit looked like when it came out. Last pic is the new replacement unit. Thanks Fred!
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Unread 05-22-2012, 08:20 PM   #3239
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I went to install the new OPDA, and I went to start the Jeep, and it wouldn't. I suspect I didn't get the OPDA lined up correctly...so I went back and read how to get it lined up, but I'm having a problem...I can not find the Timing marks on my 4.0...I have a copy of the 2005 Service manual, and posted the page specific to this below.

As I face the engine from the front, I look down just to the right of the middle. Where are the timing marks? I've cleaned off the area where I "think" they should be, but am not finding them. So I must be looking in the wrong area?
tdc-image.jpg  
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Unread 05-22-2012, 08:25 PM   #3240
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Quote:
Originally Posted by RaggedOleMan
I went to install the new OPDA, and I went to start the Jeep, and it wouldn't. I suspect I didn't get the OPDA lined up correctly...so I went back and read how to get it lined up, but I'm having a problem...I can not find the Timing marks on my 4.0...I have a copy of the 2005 Service manual, and posted the page specific to this below.

As I face the engine from the front, I look down just to the right of the middle. Where are the timing marks? I've cleaned off the area where I "think" they should be, but am not finding them. So I must be looking in the wrong area?
Ugh! Timing marks on my '06 are impossible to see. You may be relegated to TDC method, but I'll look again. Stand by for pics (if I can get 'em this late)
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