psdctd

Got a new job and boss want to pick up a 1998 3500 quad cab dually 4x4 auto w/143,000 miles. Buy or No Buy?
I've been ready all your posts for the last week..and please excuse my ignorance...what does KDP stand for?
I currently own a 96 Ford PSD and know it pretty well. But the Cummins terminolgy is got me quite confused! Are there any other abbreviations I will run in to?
Thanks in adance.....I looking forward to this site and modding up my new CTD!

kandgo

Welcom psdctd,this is a great site to learn and save yourself some money on repairs,if you are a do it yourselfer! The kdp stands for Killer Dowel Pin,it is one of the Dowel pins that are used to center the large gear housing on the front of the ctd engine that can back out and do a lot of damage,I am at a buds house using his computer,mine is down,tonight if someone has not helped you I will send you some info on repairing it yourself,it is a easy fix,in the mean time do a search on KDP , goodluck Rick

kd460

Just to help out while kandgo's computor is down (he can describe the procedure alot better than I can, and is always willing to help, he helped me with mine!).

As stated, it is a dowel that is used during assembly to locate the timing gear housing (sometimes called inner timing gear cover). The problem is, the dowel pin can work it's way out of the hole that it is pressed into (friction fit). Once this dowel pin vibrates out of it's home, it falls right into the turning timing gears. Of course the timing gears are turning in the direction that "eats up" the pin (pulls pin inward to the gears instead of away from the gears). A few things can happen with this. It can shoot the pin out of the cover, it can crack the housing, it can destroy gears, and can mess up the camshaft. All of which is very costly and labor intensive.

There seems to be no rhyme or reason as to when the pin vibrates out. Some have it happen while under warranty, some don't. Some don't have the problem till many, many miles are put on. It just happens. Some never have a problem at all. BUT, it has happened enough that it is something that should be taken care of.

The job involves removing the timing gear cover, and the parts that get in the way of the cover in order to "tab" the KDP. Things like fan and shroud, coolant bottle, and windshield washer bottle, and belt. The cover gets removed, a metal tab is put over the dowel (the tab is held in place by a bolt about an inch away from the dowel), a new cover gasket and a new crank/balancer seal, and your done. Now the dowel canot back out because the metal tab will hold it in place.

The other fix is a "Dowel pin Jig". This is a jig that you put in place on the housing and drill a hole into the housing, then you insert a bolt. This bolt prevents the dowel from backing out. Problem is, if the dowel is partially out, then the bolt won't go in AND you end up taking the cover off to pound the pin back in. The other problem is metal particles from drilling. This can be reduced or eliminated by the use of air pressure, but I think the tab is not that much trouble. Especially if you have any leaks at the crank seal of timing cover, then you can take care of that at the same time.

The cost of a gasket and a seal, (about 50-60 bucks total for both) a M8x1.25x25 bolt, and a piece of scrap metal cut into a certian shape is all that you will have into it. Then of course the 4 hours time involved. It's not hard, just need to know the tricks to save a little time. The seal can be a little tricky, and the fan removal (reverse threads) can be a challenge, but if you know the tricks, it makes it alot easier.

Kandgo can describe the finer points for you, also do a search in this forum, and you will find plenty of how to info. Hope this helps, let me know if need any other info, Kevin

kandgo

The computer is alive!!! I pm'ed you psctd to get your email as your email is hidden,if you want I will email you the info when you like,goodluck, Rick

Grampaw

[quote author=psdctd link=board=16;threadid=22804;start=0#msg213415 date=1069683610]
Got a new job and boss want to pick up a 1998 3500 quad cab dually 4x4 auto w/143,000 miles. Buy or No Buy?
I've been ready all your posts for the last week..and please excuse my ignorance...what does KDP stand for?
I currently own a 96 Ford PSD and know it pretty well. But the Cummins terminolgy is got me quite confused! Are there any other abbreviations I will run in to?
Thanks in adance.....I looking forward to this site and modding up my new CTD!

[/quote]

PSDCDT,

Here's a e-mail address, rvhvnfn@juno.com, his name is Harold, and he sells the kits for the fix of the KDP. You won't find them any cheaper. He's real good about getting them right to you also.

Grampaw

Dave1997

I have a question, I was wondering if anyone has just removed the pin, are there any reasons for keeping it in there .... Just curious as I am looking at doing mine soon

Dave

kandgo

The pin is there for a reason, to stabalize and to align the gear housing,if you are in there to secure it, I see no reason to take it out, Goodluck, if you need any info on tabbing it just say so and the info is yours, Rick,, One more thing,you stated that you are looking into doing yours soon, I would not hesitate one day on securing it,if at all possible, it is a simple repair.

Yamadad

I just tabbed mine. It was sticking out about 1/16-1/8". I don't think it was far enough to grab and pull. I just tapped it back in with a punch and hammer, then tabbed it. This seems to the best way to do it to me.

(BTW, I made my own tab from scrap steel and a bench grinder. It took all of about 10 minutes. Major kudus the list.)

wannadiesel

Kudus?

Yamadad

Banzai Bob

pstctd,
Just tabbed mine this weekend. KDP was fine. Easy and straightforward if you follow the instructions from these guys!
Have piece of mind. Do it now.
Good Luck

c172driver

I'm looking at a 2004.5. Is the KDP still an issue with the new trucks?
Are instructions posted somewhere?
Many thanks...great info here

wannadiesel

Model year '01 and up do not have KDP issues.

dieselman24

I just had mine done on a new truck that I bought 99 with 346k miles and it was fine but now I can sleep at night...Thanks to Keith @ Forest City Diesel..