DD Cam and Donnelly Head

[Don M]

Now Gene, you know who holds the title of bully on the forums. Why it is you my friend and you alone.



I dont pretend to know the best, fastest, or most efficent way of changing camshafts so I go to experts to get it done.

Actually Joe is going to do mine. Or at least stand there and make sure I dont muck it up.



Now from reading your post I can see you must have forgone the new tappets yourself and are one of the guys fighting the good fight, in your words of course. If this is the case you are fataly gullible in your choice for vendors. Yes, you are the Mitchell's marionette who strings are pulled by them daily. Come to think of it Pinocchio was a marionette too. His nose had a funny trait about it, much like yours must. It would grow and grow as the half truths would come out. Much like the worlds best mountebank of lubricants does.



Pinocchio's traits were that of eating, drinking, sleeping, playing, and wandering around from morning till night.



Remember what the cricket told him? "For your own good Pinocchio let me tell you that those who follow that trade end up in the hospital or prison. "





Chris A,



You took that last shot rather well. I like to see a fella that can change his position and say "I was wrong" or "I forgot".

You seem to be taking a position higher than SP in the stage of life.



Don~



edit- spelling and additions

 

[cumminsgetme]

Good report. Does he have a 1800° pyro or is Cade just guessing at the 300° drop? If he was pegging the 1800° gauge, maybe it's more?

Chris- He has a 1500deg pyro. He's only able to guess at the drop in egt's and I'm only able to take his word for it. I have a rough idea how his truck performs but it would be like you driving my truck and telling me if I'm seeing a loss or gain. I wanted to test the speed at which he pegged his pyro so I could compare with my truck (everyone keep in mind that his truck is MUCH heavier than mine).



Chris and I made a few test runs after making some mods in the governor one evening. I keep all my ideas and test results in a book for future reference. My pyro hit 1300deg around 100mph. These tests were run on 10/14/01 so it was probably a little cooler out then it is now and keep in mind my truck only weighs 6450lb with me in it. It's a crude comparison but a comparison none the less. At the time my brother and I were similarly fueled. The one thing that bothers me is his egt's are still climbing relatively fast and he still isn't running the #0 plate yet (I'll probably put it in today). Here's some background on his truck; 10 plate (and other afc mods), 370's, HX-40, 5" exhaust, ported head and DD cam.

If it was your truck or my truck we'd test WOT EGT at 115-120 mph.

I hear ya!! I think he's scared to bury the temp guage at 120mph then time how long it takes for the pyro to register 1500deg again!! Do you think we go to far in our testing!!



Don is right about the lifters... ... they are a pain. I have pulled/installed three cams due to a cracked gear case but this is the first time I have changed lifters. They're no fun to say the least.



-Cord

 

[Don M]

Originally posted by TxDieselKid





LMFAO!!!:-laf :-laf :-laf



Kinda what I was thinking.



Andrew

Andrew,



You are showing that you will not except the export of knowledge from others without heavy tariffs. Lower the tariff and the vendors of such knowledge will be more inclined to export to you.





Don~

 

[Cummins Corvette]

How do you change the lifters while the engine is in the truck?



Don- you are a good writer with a good vocabulary (you know plenty of $5 words), but you seem to have it in for some people. What gives? Just play nice man! That is what I am trying my best to do.

Chris. . AAYS... ... .

 

[cumminsgetme]

CumminsC-



In our case the head was already off which made things a lot easier. We dropped the lifters in the trough one at a time then pulled them out. To put the new lifters in I ran a shielded magnet down the push rod tube to line up the lifter. Once lined up your able to "stick" the lifter with the wooden dowel rods again. With the head on the truck I think the easiest way would be to use a string attached to a short piece of dowel rod. Drop the dowel rod down the pushrod tube, fish it out with a hook, "stick" the new lifter and pull it up in to place. Once the new lifter is in place, turn the trough upside down and replace the stringed dowel with a solid dowel. If your nuts were big enough you could leave the short dowel rod and string in the lifter but you would be relying on the string not to break when it was time to put the pushrods in. If the string did break then you get to pull the cam again.



-Cord

 

[Sled Puller]

Why, Thank You for making my point Don, it is not everyday you back me up 100%.



Apology accepted.



You still have themthere hippo - crates for sale?

 

[Don M]

Originally posted by Cummins Corvette

How do you change the lifters while the engine is in the truck?



Don- you are a good writer with a good vocabulary (you know plenty of $5 words), but you seem to have it in for some people. What gives? Just play nice man! That is what I am trying my best to do.

Chris. . AAYS... ... .

Chris,



I dont have it in for anyone. I have it on for certain traits that some guys seem to have. Not the person, but their actions. I do play nice except when faced with ideas from others that are half baked. I'm tired of listening to sing-songs from peddlers of misinformation, hype and products. Many guys listen to the music of these mountebanks and dont notice his hand is their pocket. One thing I will give them is their incredible sense of smell. They can smell a 20 dollar bill in your pocket from a mile away while the slobber of their ideas of how to get it runs down their chins. These salesman have the ability to take on traits that are much like ours. They trick many of us into thinking they are our equal or friend. Sometimes we succomb to the flattery of immitation. I have often drawn a parrallel between the big orangutan named Clyde and some of the TDR salesmen. They both flatter us with immitation. We laugh at Clyde when he makes a right hand turn or dresses up like a human. Some TDR salesmen have figured out by watching us that they too can make us laugh and snatch a few bucks from our pockets at the same time. They are very stealth and cunning and promise great extensions of life of things that are now synthetic instead of dino based. Synthetic like they themselves are. Fakes, quacks, etc.



Andrew and yourself do not fit the definition above. It is reserved for others that are old enough in age to know better.





Sled Puller,



Hippocrates of Cos was said to have lived sometime between 450 BCE to 380 BCE. He was a physician. In the time of Hippocrates (and the other associated writers) there were many who wanted to pass themselves off as physicians. These individuals had not gone through an apprenticeship and thus had no specialized (professional) knowledge. Because of this, these con men went about fleecing customers. This created a problem for those who entered the study of medicine the traditional way. These more careful practitioners had to distinguish themselves from the charlatans. (Read above)



The charlatans of medicine and the lubricant world have many of the same problems noted above. Remember you asked for the definition of Hippocrates.



Don~

 

[TxDieselKid]

Originally posted by Don M



Andrew,



You are showing that you will not except the export of knowledge from others without heavy tariffs. Lower the tariff and the vendors of such knowledge will be more inclined to export to you.



Don~

Don,

My tariffs are not high, you should know that of almost anybody. I was just kinda thinking this to myself, and alomst posted the same, just thought it was kinda funny.



Andrew

 

[LSMITH]

Hey Don, have fun saving the world. Good luck, let us know how you come out.





The egotism in these threads is simply mindblowing, not just you but several others too. You guys blowing your own horns constantly is great, makes it easy for people to spot you without having to look too hard.

 

[TxDieselKid]

Andrew and yourself do not fit the definition above. It is reserved for others that are old enough in age to know better.

Don, thanks for saying this, it makes me feel like we are still friends.



On edit- are you saying I'm just a dumb kid?!?!?

You guys blowing your own horns constantly is great, makes it easy for people to spot you without having to look too hard.

LMFAO!! Makes it fun to read too I think.



Andrew

 

[Don M]

Originally posted by LSMITH

Hey Don, have fun saving the world. Good luck, let us know how you come out.





The egotism in these threads is simply mindblowing, not just you but several others too. You guys blowing your own horns constantly is great, makes it easy for people to spot you without having to look too hard.

Lsmith,



Its all just BS. I think most of us are just having fun. Gene and I talk on the phone from time to time and I have expressed to him the level of sincerity of my words is very very low when taking shots at him. Feathers get ruffled from time to time, but its ok.



Ya know, sticks and stones ... ... .



Don~

 

[Sled Puller]

~ ~

 

[cumminsgetme]

Wow..... I've been away from a computer for three months and my how things have changed. We're up to four pages on this thread and I ask anyone who is willing to count the number of technical posts. I bet there is no more than four or five. It gets old..... real old. I remember someone making a comment about starting a forum where all the little girls could go to pull hair... ... . it may not be a bad idea.

 

[Greg Boardman-RIP]

Lets see if I can get it right. CC appologizes for being a bad boy. Then Don M gives him a spankin and SP just stirrs the pot. Then the loose wire chimes in on every thread that goes bad. He doesen't even make any HP.



We have Oil, trannys, now cams. I can hardly wait for the B1 is better than the HX 40 threads. That should be fun too... ... ..... Get a life

 

[LSMITH]

Originally posted by cumminsgetme

Wow..... I've been away from a computer for three months and my how things have changed. We're up to four pages on this thread and I ask anyone who is willing to count the number of technical posts. I bet there is no more than four or five. It gets old..... real old. I remember someone making a comment about starting a forum where all the little girls could go to pull hair... ... . it may not be a bad idea.

I agree completely. Makes it hard to get any useful information out of a thread.

 

[Todd T]

lets stay on it

Cummins, you said its feels like it spools faster. What turbo is he running? In fact, what other mods does he have? So, are we settling on 250-300 degree EGT drop? That’s not too shabby, if they are under extreme WOT conditions and not just cruising. If he nails it, he now only hits 1500 instead of the 1800 like before. Is that correct? If you had to pick one, would you say it feels stronger, the same or less powerful in the 1700-2000 RPM range.



Any more boost to report?



Don~ Chris witnessed a cam install on a 2002 truck. I would venture to say and this is up to the owners comfort level, that on a truck that new the Tappets are not worth the trouble of fishing them out to change. Some may disagree but if it were me, I would drop one out and see if they had a wear pattern yet and decide then. Also, now that you have exercised you literal abilities, lets try a little harder to keep on topic. All of your last five posts were off topic just taking jabs at folks. In jest or not you make it hard to follow the thread.



Why are we talking about a pre-ground cam from Cummins, and not the cost of grinding a blank anyway?



Where’s Kat? Has he been to the track on his home turf yet? Any numbers to report? I saw he ran within 1-2 tenths of his best time in NV with his new cam.

 

[Don M]

Todd,



Unfortunantly there are no blank camshafts for a Cummins that I am aware of.



Don~

 

[cumminsgetme]

Todd-



Actually it doesn't spool a whole lot faster (I had to go back and read my posts to be sure that I didn't post that beacause I didn't think I had). All of his mods are listed at the bottom of page 3 but here it goes again; #10 plate (I'll install the #0 in the next day or so), 370's, HX-40/16, 5"exh, ported head, DD cam and some other afc mods have been made to the pump.



I think 250-300deg drop in egt is very realistic (that's under WOT). After driving the truck more he and I both think it feels stronger in the 17-2300 rpm range. There's a real nice surge of power that realy lays you in the seat in that range. He is still seeing roughly 7psi loss in boost. One thing he did comment on that I haven't posted is the truck runs much smoother. I even noticed... ... she just quietly purrs until it's time to go.



As for the lifters. I compared the old to new with my calipers and was amazed at how close they were. I never saw more than +/-. 0025. I also checked all of them for flatness since the lifter hangs over the cam lobe by about . 05. They all were fine, no dishing. The truck has about 200K miles.



-Cord

 

[Todd T]

Thanks Cord, it sounds like what I'm after. maybe now with the additional air your moving you need to add some more fuel to get your boost back. let us know what the Zero plate does. i'm grinding my own plate a little at a time, working my way up the plate, trying to get the power in the range i want it. got four or five here to play with. I'm striving for low end grunt and not that high RPM noise



Don, no blanks huh, sounds like a hole in the market that needs filling. attention ALL manufacturers