Engine/Transmission (1998.5 - 2002) 24 Valve KDP

[JMichelson]

I going to be doing a 98 24 valve KDP using the jig. Has anybody out there done a 12 valve and a 24 valve? I did the one on my 98 12 valve and it wasn’t too bad. After looking at a 24 valve it looks like there is more stuff in the way. Do you have to remove the upper radiator hose? If someone out there in TDR land has any information on the differences I would sure like to hear from you. Does anyone have step by step directions or pictures to pass along? Thanks. Jeff

 

[DFerverda]

Yea i did mine, I did injectors and the kdp and several other things at the same time.

Cummins has a tab for 3 bucks to hold the pin in,the part # is 3958017.

There are several bolts in there that should be retorqued, I pulled all of em out and cleaned the hole with brakekleen and used red locktight to hold em in place. I think all the bolts in there are torqued to 18 ft lbs, no more or you will be buying new parts, i found out with a $200 oil pump.



I think i pulled the radiator , took the fan off and pulled the front cover. Do a search on here, lots of info on kdp.

Good luck Dirk

 

[HatfieldD]

KDP In 24 ??????????????????????

Isnt it only a 12 ver problem?????

 

[Mad Bomber]

KDP In 24 ??????????????????????

Isnt it only a 12 ver problem?????

NO had a NW Bombers dad with a 2002 and a KDP that did lots of damage. :{

 

[rweis]

I thought it was a 12 v problem as well. What years of the 24v are affected?



Bob Weis

 

[Graphic man]

i have never heard of anyone having issues with a KDP in a 24v







Scott

 

[MLee]

i have never heard of anyone having issues with a KDP in a 24v

Scott

Couple of you guys have been here for a long time. [And maybe not after looking at when you guys came on board] by your post numbers and you have never heard of a 24 valve having KDP problems. But any way, Cummins used up all the old gear cases before they went to the modified casting to retain the pin. It included some to 2001 but they was phasing the modified case in 2000. The just mentioned 2002 is news to me. The 97 was the worst, no one was able to come up with why that year was the worst. But that guide pin can drop out in any of the 12 valves and the mentoned 24 valves.

You can read all about the fixes in the 12 valve engine trans sticky at the top of the forum. And you can do a search to find out more about the years it effects through the search process.

Also the jig is classified as a temporary fix while the Tab is more permment. As mentioned you need to check the tourqe on the bolts that hold the case to the engine, they can cause just as much if not more damage if they come out.

Marv.

 

[wtfd6]

when I had the cover of my 2000 it was the new style cover. it was built in late 1999.


mark

 

[Graphic man]

good info,

and yes i have read alot of posts on here over the last few years and i know of a lot of guys on here with 12v and 24v trucks and i have seen the kdp being fixed and not one of them have ever done one on a 24v, i'll have to look into that and maybe do the fix.



thanks for the info



Scott

 

[Mad Bomber]

Couple of you guys have been here for a long time. [And maybe not after looking at when you guys came on board] by your post numbers and you have never heard of a 24 valve having KDP problems. But any way, Cummins used up all the old gear cases before they went to the modified casting to retain the pin. It included some to 2001 but they was phasing the modified case in 2000. The just mentioned 2002 is news to me. The 97 was the worst, no one was able to come up with why that year was the worst. But that guide pin can drop out in any of the 12 valves and the mentoned 24 valves.

You can read all about the fixes in the 12 valve engine trans sticky at the top of the forum. And you can do a search to find out more about the years it effects through the search process.

Also the jig is classified as a temporary fix while the Tab is more permment. As mentioned you need to check the tourqe on the bolts that hold the case to the engine, they can cause just as much if not more damage if they come out.

Marv.

Trust me it was REALLY news to me

 

[benhall]

Do you have to drop the front part of the oil pan to do this?



Ben

 

[wtfd6]

Do you have to drop the front part of the oil pan to do this?

Ben

no. the only things you have to take off are the fan hub and harmonic balancer.

mark

 

[rweis]

Any idea of engine serial number series that should check the KDP? Either before xxx number you should check for it, or after xxx number you should not have a problem.



Bob Weis

 

[Mad Bomber]

Any idea of engine serial number series that should check the KDP? Either before xxx number you should check for it, or after xxx number you should not have a problem.



Bob Weis

Sorry no clue, I guess that they had a old style cover and just used it. The one thing good if you could call it that was it was a stock truck and STILL had a warranty. D. C. can't say they have no idea what that is now because it cost them BIG time :-laf.

 

[ARoss]

I've heard this a few times and have contacted Cummins regarding the issue. They claim that, yes, there was/is an issue with the 12 valve engines, but when they retooled to do the 24 valvers, they addressed the issue. As far as the older case being used up; I was assured by a Cummins representative that there was no such thing. The design of the case has not changed since going into production.



As I'm sure you all know, the 12 valve cover will not fit the 24 valve engine, since it has a different configuration to mount the VP-44. Also, it seems that the P-pump has quite a bit to do with the KDP issue, being that the pump is extremely heavy. The weight of the pump, coupled with the vibration of the engine, assisted in the dislodging of the pin.



Just passing on the word according to Cummins, so please don't kill the messenger.

 

[Mad Bomber]

Just passing on the word according to Cummins, so please don't kill the messenger.

They won't admit to it up here. The fact that it has happened to some 24V's shows that it was not only a 12V problem. If you want to talk to Dave (Fishin Guide) he's on here as well as NW Bombers

 

[MLee]

DC and Cummins won't admit there is or ever was a problem. So Why do they have a repair kit with all the needed parts?

As for telling which one has the new case, on the 24 valve engine, as far as has been noted,the tear down has been the only way. I don't know if the part number is visable.

Marv.

 

[Mad Bomber]

DC and Cummins won't admit there is or ever was a problem. So Why do they have a repair kit with all the needed parts?

As for telling which one has the new case, on the 24 valve engine, as far as has been noted,the tear down has been the only way. I don't know if the part number is visable.

Marv.

CYA is the only way to make sure it won't happen to you. I had the front of my engine off and checked to make sure it won't happen to me

 

[Greenleaf]

Couple of things;



I have performed many tab jobs on the 12 valve 1996-up and found all case to block bolts are equipped with lock-tite. Never had the front cover off the fleet of 24 valve engines... ... yet



Some will argue the jig is best cuz if the bolt holding the tab loosens and fall out, the dowel pin will not be held I say that if the bolt falls out it won't matter if the dowel pin is protected :-laf



The new front case for the 12 valve is stepped. I know. I have had to install one :{

 

[WTBurke]

You guys are scaring me... 123k miles. Truck manufactured in June of 01 in the USA. Purchased in Aug of 2001... . should I be worried?



William