2005-06 Jeep OPDA_CPS_Distributor Failure - Page 208 - JeepForum.com
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post #3106 of 5422 Old 04-29-2012, 08:08 PM
CoRubicon
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Originally Posted by stripperguy View Post
A quick update, gentlemen.
I have fully disassembled a donated, damaged OPDA and was I ever shocked.
The construction of that thing is some of the worst engineering I have seen my last visit to NASA Glenn.
I have arrived at a reliable, simple solution using most of the OEM components, proper materials based on tribological needs, (unlike OEM cost accounting designs), and no need for oil cups, added oil lines, or any special service. In a short time, I'll be asking for volunteers to send me their OPDA's so I can modify them, and you guys can accumulate the mileage to assess the effectiveness of my design. If all goes as I expect, I can fix ALL of the OPDA's that were poorly designed and manufactured by Chrysler.


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post #3107 of 5422 Old 04-29-2012, 09:07 PM
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Quote:
Originally Posted by stripperguy
A quick update, gentlemen.
I have fully disassembled a donated, damaged OPDA and was I ever shocked.
The construction of that thing is some of the worst engineering I have seen my last visit to NASA Glenn.
I have arrived at a reliable, simple solution using most of the OEM components, proper materials based on tribological needs, (unlike OEM cost accounting designs), and no need for oil cups, added oil lines, or any special service. In a short time, I'll be asking for volunteers to send me their OPDA's so I can modify them, and you guys can accumulate the mileage to assess the effectiveness of my design. If all goes as I expect, I can fix ALL of the OPDA's that were poorly designed and manufactured by Chrysler.
Pm sent. I have a OPDA with 2000 miles on it that's sitting on my shop for you.

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post #3108 of 5422 Old 04-30-2012, 09:26 AM Thread Starter
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Quote:
Originally Posted by stripperguy View Post
A quick update, gentlemen.
I have fully disassembled a donated, damaged OPDA and was I ever shocked.
The construction of that thing is some of the worst engineering I have seen my last visit to NASA Glenn.
I have arrived at a reliable, simple solution using most of the OEM components, proper materials based on tribological needs, (unlike OEM cost accounting designs), and no need for oil cups, added oil lines, or any special service. In a short time, I'll be asking for volunteers to send me their OPDA's so I can modify them, and you guys can accumulate the mileage to assess the effectiveness of my design. If all goes as I expect, I can fix ALL of the OPDA's that were poorly designed and manufactured by Chrysler.
Please don't take offense (this is just the skeptic and devil's advocate in me ), but we've heard a similar post from other vendors in the past with no results.

Can you offer any info on your proposed design mod/change? Bearing? Bushing change? Seal modification?

I would also assume it related solely on lubrication of the upper bushing and not necessarily the gear wear?

What is the cost of the this change?

Are these mods something an average Joe can do or are you suggesting changes that would require professional modification?
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post #3109 of 5422 Old 04-30-2012, 11:30 AM
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Quote:
Originally Posted by willydigger View Post
Please don't take offense (this is just the skeptic and devil's advocate in me ), but we've heard a similar post from other vendors in the past with no results.

Can you offer any info on your proposed design mod/change? Bearing? Bushing change? Seal modification?

I would also assume it related solely on lubrication of the upper bushing and not necessarily the gear wear?

What is the cost of the this change?

Are these mods something an average Joe can do or are you suggesting changes that would require professional modification?
Willy,

No offense taken... I'm sure you've heard all this before.
If you have the time, visit my company's website miti.cc and stroll around a bit. Everything you see there was designed by me, read some of the technical papers, our specialty is in the field of tribology. We are the recognized world leader in our field. I own a significant share of the company and am one of the founders.

Enough of my BS, now let's answer some questions.
Upper bushing would be swapped with a sealed, rolling element bearing.
Housing and shaft modified to suit.
Lower bushing swapped with a proper material for a reliable tribological pairing.
Gear? My suspicion is that most gear wear is the result of the near siezure of upper bushing, not a lack of lubrication. But I could be wrong, hence the beta testing...

My preference would be to offer as a retrofit kit. Simple disassembly and part swap out. Less desirable for me would be a full rebuild, I just don't have enough free time.

Costs? Not sure yet, I need to finish the design and get cost and delivery estimates, as well as batch quantity estimates. Regardless, costs would definitely be far less than a replacement OPDA, and more importantly, actually solve the problem.
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post #3110 of 5422 Old 04-30-2012, 11:52 AM
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Originally Posted by stripperguy View Post

No offense taken.....
Stripperguy, certainly looks like you're for real. I visited your web site. I look forward to the results of your efforts. I'll give you an advance, thanks, and another major thanks to several members that have made amazing contributions here.

I've been fog-modded for a year or so and so far opda is looking good.
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post #3111 of 5422 Old 04-30-2012, 12:03 PM Thread Starter
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Quote:
Originally Posted by stripperguy View Post
Willy,

No offense taken...
...
My preference would be to offer as a retrofit kit. Simple disassembly and part swap out. Less desirable for me would be a full rebuild, I just don't have enough free time.

Costs? Not sure yet, I need to finish the design and get cost and delivery estimates, as well as batch quantity estimates. Regardless, costs would definitely be far less than a replacement OPDA, and more importantly, actually solve the problem.
Thanks for the understanding.

Do you have an idea on a time line for a kit, is this weeks or months down the road?
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post #3112 of 5422 Old 04-30-2012, 12:05 PM
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Quote:
Originally Posted by stripperguy View Post
Willy,

No offense taken... I'm sure you've heard all this before.
If you have the time, visit my company's website miti.cc and stroll around a bit. Everything you see there was designed by me, read some of the technical papers, our specialty is in the field of tribology. We are the recognized world leader in our field. I own a significant share of the company and am one of the founders.

Enough of my BS, now let's answer some questions.
Upper bushing would be swapped with a sealed, rolling element bearing.
Housing and shaft modified to suit.
Lower bushing swapped with a proper material for a reliable tribological pairing.
Gear? My suspicion is that most gear wear is the result of the near siezure of upper bushing, not a lack of lubrication. But I could be wrong, hence the beta testing...

My preference would be to offer as a retrofit kit. Simple disassembly and part swap out. Less desirable for me would be a full rebuild, I just don't have enough free time.

Costs? Not sure yet, I need to finish the design and get cost and delivery estimates, as well as batch quantity estimates. Regardless, costs would definitely be far less than a replacement OPDA, and more importantly, actually solve the problem.
This sounds great. One question- what would you estimate the time frame to come up with this design, test it out, put together a kit, etc?

I know it can't be done overnight, but if it takes as long as Crown has been "working" on their replacement, i'm wondering if anyone can even fix it.
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post #3113 of 5422 Old 04-30-2012, 12:32 PM
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I expect I can get to this in a week or two...
Just to clarify, I am not an aftermarket vendor or even a job shop. My business is vastly different. All of this is my personal time and commitment to fix a problem that plagues many of us. I only want to fix the problem, not compete with mass manufacturing or OEM's.
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post #3114 of 5422 Old 04-30-2012, 12:37 PM
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Originally Posted by stripperguy View Post
I expect I can get to this in a week or two...
Just to clarify, I am not an aftermarket vendor or even a job shop. My business is vastly different. All of this is my personal time and commitment to fix a problem that plagues many of us. I only want to fix the problem, not compete with mass manufacturing or OEM's.


I wish you good luck on the new design.

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post #3115 of 5422 Old 04-30-2012, 01:21 PM
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Quote:
Originally Posted by stripperguy View Post
I expect I can get to this in a week or two...
Just to clarify, I am not an aftermarket vendor or even a job shop. My business is vastly different. All of this is my personal time and commitment to fix a problem that plagues many of us. I only want to fix the problem, not compete with mass manufacturing or OEM's.
This is some of the best news I've heard in a *long* time.

I think I speak for most of JF in saying good luck and I hope this works out as you expect; you'll have more gratitude than you know what to do with.
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post #3116 of 5422 Old 04-30-2012, 01:54 PM
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Thumbs up on this.

I've had a number of ideas that I know would work, but not having the machinery to do the job has been my downfall.

Just to let you know, with a stock shaft, no oil feed spiral groove, and the seal out not much oil reaches the top bushing. I ran mine like that for a while and although little oil got up there, I bet it was sufficient to lube the bushing.

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post #3117 of 5422 Old 04-30-2012, 05:06 PM
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Quote:
Originally Posted by stripperguy View Post
Upper bushing would be swapped with a sealed, rolling element bearing.
Housing and shaft modified to suit.
Lower bushing swapped with a proper material for a reliable tribological pairing.
Gear? My suspicion is that most gear wear is the result of the near siezure of upper bushing, not a lack of lubrication. But I could be wrong, hence the beta testing...

My preference would be to offer as a retrofit kit. Simple disassembly and part swap out. Less desirable for me would be a full rebuild, I just don't have enough free time.
Awesome! Can't wait to see the finished product. Put me down for one if you get it working.

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post #3118 of 5422 Old 04-30-2012, 05:20 PM
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Quote:
Originally Posted by stripperguy View Post
My preference would be to offer as a retrofit kit. Simple disassembly and part swap out. Less desirable for me would be a full rebuild, I just don't have enough free time.

Costs? Not sure yet, I need to finish the design and get cost and delivery estimates, as well as batch quantity estimates. Regardless, costs would definitely be far less than a replacement OPDA, and more importantly, actually solve the problem.
You definitely don't want to do an exchange deal or out right sale of the whole unit. If you do before you know it some bozo will try and sue you cause his engine blew. I'd think that Chrysler may have issues with that as well. Not sure.

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post #3119 of 5422 Old 04-30-2012, 05:21 PM
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I'm a dummy, school me on tribological pairing.

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Mods done: Hurst tee handle, cheap hand throttle, Rokmen Merc front bumper, Warn 9.5 TI winch with 3/8" X 100 worth of Viking yellow rope, DPG OME Ultimate with JKS ACOS up front, Kilby Gas Tank Skid, Kilby Steering Box Skid, Jeep Medic Belly Up, Skidrow Engine Skid, Rockcrusher Diff Skid in the rear, Warn Diff cover in front, , AR Outlaw II's and MTR 12:50/15's, Homemade rear Bumper, Cheap Cobra CB, Puma OBA, Sirius Radio, Locker Defeat, Rockhard cage, Rockmen short corners, homemade tire swing/tailgate hinge affair, Airlift air bags on the rear- - - - - - and more to come!
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post #3120 of 5422 Old 04-30-2012, 05:35 PM
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Quote:
Originally Posted by Bigbob View Post
I'm a dummy, school me on tribological pairing.


Quote:
Originally Posted by wiki
Tribology is the science and engineering of interacting surfaces in relative motion. It includes the study and application of the principles of friction, lubrication and wear. Tribology is a branch of mechanical engineering...

The tribological interactions of a solid surface's exposed face with interfacing materials and environment may result in loss of material from the surface. The process leading to loss of material is known as "wear". Major types of wear include abrasion, friction (adhesion and cohesion), erosion, and corrosion. Wear can be minimized by modifying the surface properties of solids by one or more of "surface engineering" processes (also called surface finishing) or by use of lubricants (for frictional or adhesive wear).
Just busting yer balls, Bob.

Sounds like we have the man with the motivation AND the means to do something.



Gear-Calculator Stu Can Help You Part Names and Numbers Dealer Supplied Parts and ask for "Jeep Club" Prices


Quote:
Originally Posted by 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
"Did you exchange your walk-on part in the war for a lead role in a cage?"
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