Dodge Cummins Diesel Forum - Reply to Topic
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

Thread: How common is the KDP? Reply to Thread
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  Topic Review (Newest First)
Yesterday 09:21 PM
sdeeter19555 All but done, just need to torque the damper, install the fan, and fan shroud.

Went easier than I could have hoped...

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Yesterday 09:52 AM
sdeeter19555 Some pictures...

I watched a video on the KDP fix, and the guy pointed out to use 1/4" drive sockets to get to the two case bolts behind the cam gear.

I'm hoping I can have it mostly assembled tonight...I have to clean everything, loc-tight the remaining bolts, install the new crank seal, etc...

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10-17-2019 10:55 PM
myother4x4isaCJ7
Quote:
Originally Posted by sdeeter19555 View Post

Now I have some questions:

Some of the bolts are behind the gears...and there is no lining them up with a gear window. How do you get to them? I can see the one bolt is behind the web of the gear, so no getting to it.

Another question about the cam bolts, what are they torqued to? I could probably look it in the FSM, but I'm not sure it gets that deep.

My cover gasket came off in one piece...would you reuse it? I've read both ways...I could use it or used gray RTV.



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Just get to the bolts you can, any 10mm bolt is torqued to 18 foot pounds, Iíve reused the gasket with some grey rtv and removed it altogether and just used rtv no gasket both worked just fine for me.
10-17-2019 08:22 PM
sdeeter19555 Ok, tore it down tonight...

Damper was the worst part, it was rusted to the stub on the crank. A little tapping and a little prying got it loose.

I found my fan shroud is busted...anyone have a spare?

For the fan, I had to grind a 10mm down thin enough to get at that one bolt. I had a cheapy wrench just for that reason. Bearing seems good, no reason to change it out.

I tabbed the KDP...it was flush with the end of the case bore, I drove it back about 3/8". Tabbed it tonight, I need to the others but it was enough for one day.

I pulled the AC compressor, that was a pain. Does the main cast iron bracket really house the inlet neck as well? It looks like that entire thing is all one piece? It should make changing the filter easier.

Now I have some questions:

Some of the bolts are behind the gears...and there is no lining them up with a gear window. How do you get to them? I can see the one bolt is behind the web of the gear, so no getting to it.

Another question about the cam bolts, what are they torqued to? I could probably look it in the FSM, but I'm not sure it gets that deep.

My cover gasket came off in one piece...would you reuse it? I've read both ways...I could use it or used gray RTV.



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08-21-2019 06:22 PM
sdeeter19555 Ok, I've been researching this some...

Getting things apart, no surprises, nothing jumps out as difficult. Tabbing the pin, easy. Putting it together, nothing odd.

Where are the other bolts for the timing case (under the timing cover) that need loctite? Am I correct in assuming I need to spin the crank to access those bolts through the "access" holes in the timing gears?

And, because I watched it done both ways, is the crank seal indexed with the installer from the front or the back of the cover???? I see its punched to the back, installed from the back, but is it indexed from the front or the back? Or doesn't it make a difference?

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08-21-2019 09:04 AM
sdeeter19555 Well, since that is the case; I just ordered the TST KDP kit from Geno's; I'll tackle that whenever it comes in...

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08-20-2019 08:39 PM
daword2011
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).

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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


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08-20-2019 07:34 PM
sdeeter19555 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).

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08-20-2019 01:47 AM
82f100swb 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.
08-19-2019 09:11 PM
sdeeter19555 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...

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08-08-2019 10:15 AM
sdeeter19555
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.

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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...

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08-07-2019 10:54 PM
daword2011 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.

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