engine problems - Diesel Truck Forum - TheDieselGarage.com
Thread Details Posted by floridaboy, this thread has received 16 replies and been viewed 1741 times.

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 17 (permalink) Old 04-23-2008, 02:22 AM Thread Starter
gone fishin!
 
Join Date: Dec 2008
Location: none your damd business
Posts: 2,833
Points: 18,153
Thanks: 231
Thanked 282 Times in 241 Posts
engine problems

Does anyone else find it kinda odd that all these people are having problems with these older mechanicly injected cummins motors now........i have a sneeking suspition that the new ulsd is finaly in 100% concentration now and its killing our poor p-pumps.:shrug:


please share what yall think on the subject.

MABB- members against big business

keep the internet free!!!!!!!!
floridaboy is offline  
Sponsored Links
Advertisement
 
post #2 of 17 (permalink) Old 04-23-2008, 05:18 AM
 
Join Date: Oct 2006
Posts: 2,224
Points: 40,786
Thanks: 1
Thanked 37 Times in 25 Posts
I find that unlikely, the diesel is required to meet certain lubrication requirements and additives are used to meet those requirements. When they switched to the low sulfur diesel in the 90's the common problem was the rubber seals and fuel lines degrading. Vicron(sp) has been implemented in all 93 and newer trucks.

A question that comes to mind is what do you plan to do about it if your theory is correct? Add 2-stroke oil for the rest of the trucks life?

Thats my :2cents
Dual K20s is offline  
post #3 of 17 (permalink) Old 04-23-2008, 06:57 PM
 
Join Date: Nov 2007
Posts: 1,134
Points: 15,502
Thanks: 0
Thanked 5 Times in 4 Posts
I thought most of the P7100 internals were lubed by oil? Not the fuel except maybe the DV's?
imported_cummins_power is offline  
post #4 of 17 (permalink) Old 04-23-2008, 07:24 PM
 
Join Date: Oct 2006
Posts: 2,224
Points: 40,786
Thanks: 1
Thanked 37 Times in 25 Posts
Yes the bottom part is but the "top" is lubed by fuel, like the plungers, dvs, and maybe some other stuff
Dual K20s is offline  
post #5 of 17 (permalink) Old 04-24-2008, 01:52 AM Thread Starter
gone fishin!
Threadstarter
 
Join Date: Dec 2008
Location: none your damd business
Posts: 2,833
Points: 18,153
Thanks: 231
Thanked 282 Times in 241 Posts
i just think that these trucks with low miles ad are now being driven more and more are suffering with the new fuel.......my little thery is that these pumps are not as worn in as one with 200,000 miles and have closer tolerences than a wore in one. i think the ulsd witch has less sulfer witch is a key lubercant in high pressure fuel pumps, is playing hell on these tight tolerences and causing failers....... just my little brain storm

MABB- members against big business

keep the internet free!!!!!!!!
floridaboy is offline  
post #6 of 17 (permalink) Old 04-24-2008, 01:57 AM Thread Starter
gone fishin!
Threadstarter
 
Join Date: Dec 2008
Location: none your damd business
Posts: 2,833
Points: 18,153
Thanks: 231
Thanked 282 Times in 241 Posts
my solution is bio diesel... i love this stuff, i get better gas milage, more power, lower egt's and less injector rattle. deffinatly a notable difference.

MABB- members against big business

keep the internet free!!!!!!!!
floridaboy is offline  
post #7 of 17 (permalink) Old 04-25-2008, 02:49 PM
2nd Gen Guru
 
Mopar1973Man's Avatar
 
Join Date: Dec 2008
Location: New Meadows, Idaho
Posts: 2,641
Points: 55,101
Thanks: 9
Thanked 140 Times in 131 Posts
Garage
Send a message via Yahoo to Mopar1973Man
Quote:
Originally Posted by floridaboy
i just think that these trucks with low miles ad are now being driven more and more are suffering with the new fuel.......my little thery is that these pumps are not as worn in as one with 200,000 miles and have closer tolerences than a wore in one. i think the ulsd witch has less sulfer witch is a key lubercant in high pressure fuel pumps, is playing hell on these tight tolerences and causing failers....... just my little brain storm
The other problem is that if the delivery truck doesn't remember to put his lubrucant package in before loading with fuel then the HFRR value can be as high as 700-900 HFRR which outside the standards by a long shot. US Gov't standard is less than 520 HFRR... US manufactures suggest less than 460 HFRR which todays fuel doesn't even meet. Then to make the brain hurt more... The old LSD (500 ppm) was about 300-350 HFR for an average. So yeas todays fuel is causing more wear...

Quote:
my solution is bio diesel... i love this stuff, i get better gas milage, more power, lower egt's and less injector rattle. deffinatly a notable difference.
True Bio-Diesel is the #1 for fuel lubricity. But some of us don't have local acces to it. So if you want to protect your pump try 2 cycle oil when you don't have BIO handy... :Thumbup:

Michael Nelson - 2002 Dodge Cummins & 1996 Dodge Ram 5.9L Gasser
116K Miles On My VP44 - 4 Years of 2 Cycle Oil Diet! - Mixed at 128:1 Ratio - 25.3 MPG maxed out!
Mopar1973Man is offline  
post #8 of 17 (permalink) Old 04-25-2008, 08:37 PM
Member
 
Join Date: Apr 2006
Posts: 41
Points: 1,604
Thanks: 0
Thanked 0 Times in 0 Posts
check out the alternative fuels section in these forums. theres a wealth of info on additives and hffr values along with graphs and such. that should answer anyones questions.its already been covered on at least 5-8 pages under a couple different threads. try a search on 2 cycle oil.

97 Dodge 4x4 x-cab.206,000 mi. 4.10s. 5 speed. 330 bosch marines. pump at 16*advanced. boost at 35#s. AFE 4in, Turbo back, Magnaflow. Boost guage and pre turbo pyrometer. LuK Pro Gold Clutch.
Ziggy is offline  
post #9 of 17 (permalink) Old 04-27-2008, 12:32 AM
Diesel Mafia #67
 
blackcloudCTD95's Avatar
 
Join Date: Jun 2006
Location: jensen beach fl
Posts: 11,283
Points: 69,139
Thanks: 257
Thanked 202 Times in 153 Posts
Its mostly lubed by oil.. ever do a gov spring change? or fuel plate? take a peek under the intake shelf you will see a 90* fitting with a steel braded line going to it.. thats oil supply.. now trying to take one of those off.. GOOD LUCK!!!!! wrenches will be throw and curse words will be spoken!

Jordan

95-dodge 2500 built to the hill... - sold to litle brother
03- stroker 6.0 studs and basic BS

blackcloudCTD95 is offline  
post #10 of 17 (permalink) Old 04-27-2008, 12:41 AM
 
Join Date: Nov 2007
Posts: 1,134
Points: 15,502
Thanks: 0
Thanked 5 Times in 4 Posts
:laffup
imported_cummins_power is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Diesel Truck Forum - TheDieselGarage.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome