Engine/Transmission (1998.5 - 2002) One dead KDP on 24v!

[BFC]

Well after Illflem scared the crap out of me with his neighbors 24v getting it, I put my name on the list for the JIG. That one sweet piece of machine work, thanks John. Took about 1. 5 hour including a few Coronas.



If you have an early 24v, it so easy that you have no excuse for not doing it.



Glenn



AND REMEMBER TO KEEP THE JIG's MOVING

 

[truckstom]

what did you find??? Did it NEED to be done ?? was it loose?? Or just peace of mind... ... ?

 

[illflem]

I haven't reported back on this -- the guy with the '99 indeed had the dowel pin come out. High volume dealer where he took it for warranty repair (Dave Smith) said it wasn't the first failure they had seen on 24 valve but have never seen one on anything newer than 2000.

 

[BFC]

Originally posted by truckstom

what did you find??? Did it NEED to be done ?? was it loose?? Or just peace of mind... ... ?

Found nothin', that's good news. But now I can sleep at night LOL



Glenn

 

[DEZLPWR]

Did mine on 1/18/03....

I sleep REAL GOOD at night now! Oo. Oo.

 

[fj40charles]

Originally posted by illflem

I haven't reported back on this -- the guy with the '99 indeed had the dowel pin come out. High volume dealer where he took it for warranty repair (Dave Smith) said it wasn't the first failure they had seen on 24 valve but have never seen one on anything newer than 2000.

Does this mean 24v truck from 2001 and newer are safe?

 

[thouse]

I pulled the cover on my 99 last weekend. I have the new case, but at least I know. My truck was built in November 98,

 

[Steve Campbell]

Mine was built 7/99.....

am I safe?????

 

[illflem]

Steve anyone who could answer you one way or the other without removing the gear case cover would be lying...



2000 and newer are apparently safe

 

[John Berger]

thouse, that's good news and gives me cause for optimism. According to my engine data plate, the build date on my truck was 12/98. Where was your truck built? Mine was born in St. Louis.

 

[Ron Bissett]

KDP?

Just got the word from Cummins Customer assistance center and they E-mailed me back over night I asked if my 1999 isb was subject to the killer dowel pin . Power Masters stated that as of 1998. 5 all isb have the new covers and no need to worry about the pin as it is trapped by the cover ,and that some repair worker may have by mistake replaced the cover with a old model and that, All isb have the new covers after 1998. 5 and no need to worry so that is what I am going to do . I think they are correct and that the guy that has the 99 got the cover switched. I will mark mine to be sure it dose not get switched . Ron in Metro Louisville KY

 

[illflem]

Ron, the problem with the answers from Cummins is that they haven't been consistent. Responses to others have been much different and would cause some concern.



The 99 in question had never been worked on before, original owner.

 

[Ron Bissett]

KDP?

Illflem Did the fellow that had the pin on the 99 get it fixed at the dealer and a redress by Cummins on this Important issue. The cover that is on my motor has never bin removed and I will mark the cover and will not remove the cover unless the pin works out of the impossible to move out of new stile cover . Thanks for your reply . Ron in Metro? Louisville KY

 

[B9Mile]

Bill is correct regarding the incosistent responses from Cummins.



My 98. 5 engine was assempled about 09 FEB 98. I e-mailed Cummins with the engine serial # and the part # for the case, and STILL received the usual "Go see the dealer. . . " response.



It looks like Cummins can't definitively say if the new case is on a particular engine. The only way to tell is to take a look. I will be doing that in about a month.



The real give-away for this is the response R. Patton inserted into the KDP story in the last edition of the TDR. It says ". . . the new case was INTRODUCED at the beginning of the 98. 5 production run. " Nothing is mentioned about when the improved covers were actually INSTALLED on the ISBs.



Anybody feel like this is the usual runaround??

 

[A Johnson]

Please follow Illflems advice on all of this.



If I owned a 99 or older I would be either looking at it,or doing the jig fix. It is too expensive to ignore.



I received info today from Cummins introducing a tab fix for P-7100 engines. Tab P/N 3958017.



This fix will not work on the newer P-7100 gear housings as they have additional material above the pin that is higher than the rest of the housing, yet the pin will still work out. Cummins recomendation was to peen the edge of the aluminum over to form a burr that would stop the pin. They did not give a build date for the newer style housing.



The way I understand it the newest covers (2000 and up) have the pin completly covered. Am I correct Illflem?



A Johnson

 

[Chipstien]

I was under the impression that the new design is stepped to prevent the pin for working out.

 

[A Johnson]

You are correct , I finally found Illflems picture and it is a stepped hole.

Thanks



A Johnson

 

[Joe Mc]

Got me wondering now. How can you tell if you have the newer "stepped" cover?

 

[illflem]

The only way to know if you have the improved case is to remove the fan, fan hub and gear case cover and look for the stepped down hole. There are no different numbers nor indications from the outside. If you have a 2000 or older no need to worry.



This photo was taken from the back side of the new case. The only difference is that the middle hole for the dowel pin is now stepped so the pin can no longer work its way out. Too bad this wasn't included in the original design.

#ad

 

[Challenger-II]

Originally posted by illflem

The only way to know if you have the improved case is to remove the fan, fan hub and gear case cover and look for the stepped down hole. There are no different numbers nor indications from the outside. If you have a 2000 or older no need to worry.

illflem..... do you mean 2000 and newer are no need to worry? I thought the '99's were at issue?



Sorry about the ignorance but could someone give a quick summary about what this dowel pin or KDP thing is all about. Many of us are just coming on board with this.