Quoted:
12V only...... They're steering you wrong...
Check out the Turbo Diesel Register web site forums tdr1.com. The site/magizine is indespensible for a Cummins CTD owner.
There has been killer dowls that have taken out atleast a few 2002 24v cummins. There was a redesigned timing case cover with a protrution that was to keep the dowl inplace. When the engines were built Cummins used up the old covers first and some 2001-2002 24v engines got the old covers and there has been some 01-02 24v engines that have been taken out by the KDP.
That said there is no way with out taking off the cover if your engine has the new cover with the protrution. Best bet would be to have it checked out and either tabing the KDP or assuring that you have the updated cover.
While the cover is off make sure you remove, clean, retorque and loctite the 5-7 case bolts that are in the timing gear case. these can work themselves out and take an engine out also.
I used to think that it was a 12v engine problem only, then I spoke with some guys who have early 24v engines all the way up to guy with a 2002 that was FUBAR'd by the KDP.
First project for my 01.5 2500, I have on the list when the weather breaks is to take three hours and remove my timing case cover and check the KDP and ensure that it is not gonna fall out, either by confirming that I have the updated cover or by tabbing the dowl. I'll also take care of the bolts while in there. Should take about 3 hours and cost less than 30 bucks to take care if it all.
Hope this helps
J-