How common is the KDP? - Dodge Cummins Diesel Forum
89-93 Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect...NO ADVERTISING

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 18 (permalink) Old 07-17-2019, 12:46 PM Thread Starter
Cummins Enthusiast
 
sdeeter19555's Avatar
 
Join Date: Jul 2019
Location: Reading, PA
Posts: 288
Thanks: 20
Thanked 11 Times in 10 Posts
iTrader Score: 0 reviews
How common is the KDP?

So, I'm likely buying this 90 w250...has 180k on the clock, owner has not done the KDP fix (has the parts, never did the fix).

Is this something that I need to jump right on at this mileage (would it have already caused issues by now)?

Sent from my SM-G950U using Tapatalk

sdeeter19555 is offline  
Sponsored Links
Advertisement
 
post #2 of 18 (permalink) Old 07-17-2019, 01:11 PM
Diesel Head
 
myother4x4isaCJ7's Avatar
 
Join Date: Aug 2016
Location: Dufur oregon
Posts: 3,774
Thanks: 42
Thanked 339 Times in 319 Posts
iTrader Score: 2 reviews
Quote:
Originally Posted by sdeeter19555 View Post
So, I'm likely buying this 90 w250...has 180k on the clock, owner has not done the KDP fix (has the parts, never did the fix).

Is this something that I need to jump right on at this mileage (would it have already caused issues by now)?

Sent from my SM-G950U using Tapatalk
It could run for another 29 years and never have an issue or tomorrow the kdp could fall out so yea itís best to do it as soon as you can.
myother4x4isaCJ7 is offline  
post #3 of 18 (permalink) Old 07-17-2019, 01:32 PM
Cummins Enthusiast
 
daword2011's Avatar
 
Join Date: May 2011
Location: College Station, Texas
Posts: 211
Thanks: 3
Thanked 17 Times in 17 Posts
iTrader Score: 0 reviews
People do it for the peace of mind, there's no way to know when or if it'll ever happen. I've seen trucks with 500k miles that the KDP hasn't moved an bit. And the truck I have had the pin fall out at 70k miles. Personally, if you're ever anywhere near there (rad work, fan clutch, injector pump, front main seal, etc) I would just do it. For the cost of the part, it's worth the peace of mind.

Sent from my LM-G710 using Tapatalk

1992 Dodge W250, 5-speed
daword2011 is offline  
Sponsored Links
Advertisement
 
post #4 of 18 (permalink) Old 07-17-2019, 03:55 PM
Diesel Head
 
9297oldram's Avatar
 
Join Date: Sep 2010
Location: Huntington In.
Posts: 20,059
Thanks: 631
Thanked 2,178 Times in 2,035 Posts
iTrader Score: 0 reviews
I agree do it it's cheaper and alot less work then repairing it if it would fall out.

84 K5 Blazer 97 12v, 47re with E-TransControl, Dodge Dana 60 with free spin hubs, Dana 70, B&M Mega shifter

96 F350 SC dually zf5, 4x4, 92 Cummins, THD 5x12's, THD fuel pin, THD HVLP with adjustable fuel pressure mod, WM, h1c 60/60/12cm WG wired
9297oldram is offline  
post #5 of 18 (permalink) Old 07-19-2019, 09:09 AM
Cummins Fanatic
 
monsoon-mech's Avatar
 
Join Date: Jan 2019
Posts: 179
Thanks: 2
Thanked 5 Times in 5 Posts
iTrader Score: 0 reviews
its not a milage thing.. its a "just how tight is the pin on my exact particular truck" thing,
monsoon-mech is offline  
post #6 of 18 (permalink) Old 08-07-2019, 09:15 PM Thread Starter
Cummins Enthusiast
 
sdeeter19555's Avatar
 
Join Date: Jul 2019
Location: Reading, PA
Posts: 288
Thanks: 20
Thanked 11 Times in 10 Posts
iTrader Score: 0 reviews
Just throwing this out there...to see if anyone has tried this before I waste the time.

I'm thinking the original engine in this truck was probably a KDP failure. The timing case appears to have been removed at some point. What is the likelihood they tabbed the KDP on the replacement engine to prevent a repeated event?

Has anyone taken and inspection camera and tried going in through the oil fill hole? It would take five minutes to remove the oil fill tube, then you theoretically could snake a camera back into the cover? My only thought is if there isn't enough room between the case and the gears to fit a 3/8" camera?

Thoughts? It will be a couple weeks before I'm back at this thing, but I'm scheming now to get my plan together.

Sent from my SM-G950U using Tapatalk
sdeeter19555 is offline  
post #7 of 18 (permalink) Old 08-07-2019, 10:54 PM
Cummins Enthusiast
 
daword2011's Avatar
 
Join Date: May 2011
Location: College Station, Texas
Posts: 211
Thanks: 3
Thanked 17 Times in 17 Posts
iTrader Score: 0 reviews
The truck I have had the KDP fall out. The Dodge dealer, replaced the dowel pin and timing gears and put it back together without anything to secure it. So you can't assume.

And it's tight, but maybe one of the really small fiber cameras you can get in there.

Sent from my LM-G710 using Tapatalk

1992 Dodge W250, 5-speed
daword2011 is offline  
post #8 of 18 (permalink) Old 08-08-2019, 10:15 AM Thread Starter
Cummins Enthusiast
 
sdeeter19555's Avatar
 
Join Date: Jul 2019
Location: Reading, PA
Posts: 288
Thanks: 20
Thanked 11 Times in 10 Posts
iTrader Score: 0 reviews
Quote:
Originally Posted by daword2011 View Post
The truck I have had the KDP fall out. The Dodge dealer, replaced the dowel pin and timing gears and put it back together without anything to secure it. So you can't assume.

And it's tight, but maybe one of the really small fiber cameras you can get in there.

Sent from my LM-G710 using Tapatalk
My understanding with this replacement engine is that it was bought from a yard in Texas that specializes in Cummins, my guess is it was bought as a long block and they bolted all the accessories from the original engine onto it (that's why my turbo looked like it had 400k miles on it).

My point is that maybe they tabbed it before they installed it...not much other reason to be under that cover except for a seal leak. It would be nice to know before I go to the trouble to tear the front of it apart...

I do plan to stamp an aluminum tag with KDP KILLED and a date and install it under one of the cover bolts, for the next guy...

Sent from my SM-G950U using Tapatalk
sdeeter19555 is offline  
post #9 of 18 (permalink) Old 08-19-2019, 09:11 PM Thread Starter
Cummins Enthusiast
 
sdeeter19555's Avatar
 
Join Date: Jul 2019
Location: Reading, PA
Posts: 288
Thanks: 20
Thanked 11 Times in 10 Posts
iTrader Score: 0 reviews
Well, I did determine that an inspection camera (even a small one) won't get between the gear and cover...although I did see some things, just nothing useful.

At least it was clean in there...

Sent from my SM-G950U using Tapatalk
sdeeter19555 is offline  
post #10 of 18 (permalink) Old 08-20-2019, 01:47 AM
Newbie
 
Join Date: Apr 2008
Location: Sioux Lookout, ON, CA
Posts: 1
Thanks: 0
Thanked 2 Times in 1 Post
iTrader Score: 0 reviews
My 92 the PO paid to have tabbed, but it wasn't. It spit it out. My Fummins the parts were purchased, but it was never done, came into my posession with a new timing case... Thats 2/3 when it comes to 12V's I have owned that spit it out. I would not trust it to stay put.
82f100swb is offline  
The Following 2 Users Say Thank You to 82f100swb For This Useful Post:
irhunter (08-22-2019), sdeeter19555 (08-20-2019)
post #11 of 18 (permalink) Old 08-20-2019, 07:34 PM Thread Starter
Cummins Enthusiast
 
sdeeter19555's Avatar
 
Join Date: Jul 2019
Location: Reading, PA
Posts: 288
Thanks: 20
Thanked 11 Times in 10 Posts
iTrader Score: 0 reviews
Ok, can you pull the cover without changing the seals, or is it required to change the seals when you pull the cover? I would start this project this week (seems easy enough), but I'm not sure I could get the seals by the time I put it back together (if I ordered them).

Sent from my SM-T350 using Tapatalk
sdeeter19555 is offline  
post #12 of 18 (permalink) Old 08-20-2019, 08:39 PM
Cummins Enthusiast
 
daword2011's Avatar
 
Join Date: May 2011
Location: College Station, Texas
Posts: 211
Thanks: 3
Thanked 17 Times in 17 Posts
iTrader Score: 0 reviews
Quote:
Originally Posted by sdeeter19555 View Post
Ok, can you pull the cover without changing the seals, or is it required to change the seals when you pull the cover? I would start this project this week (seems easy enough), but I'm not sure I could get the seals by the time I put it back together (if I ordered them).

Sent from my SM-T350 using Tapatalk
I would change the timing cover gasket and front main seal when you get in there. Better than pulling it off later for an oil leak


Sent from my LM-G710 using Tapatalk

1992 Dodge W250, 5-speed
daword2011 is offline  
The Following User Says Thank You to daword2011 For This Useful Post:
sdeeter19555 (08-21-2019)
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Dodge Cummins Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome