P7100 Governor Springs wrong??? - Dodge Cummins Diesel Forum
- HOME - FORUMS - GARAGE - TECH - ARTICLES - CHAT - CLASSIFIEDS - REVIEWS - VIDEOS - MEMBER MAP - STORE - INSURANCE -
- REGISTER - CALENDAR - INFO - SITE HELP - RULES - STAFF - MEMBERSHIP - ADVERTISE - CONTACT US -


Welcome to the Dodge Cummins Diesel Forum, the fastest growing Dodge Diesel Community on the internet.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact us
Go Back   Dodge Cummins Diesel Forum > 2nd Gen. Dodge Cummins 94-98 12V Forums > 94-98 Powertrain
94-98 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

CumminsForum.com is the premier Dodge Diesel Truck Forum on the internet. Registered Users do not see the above ads.

Auto Insurance

» Featured Product
Wheel & Tire Center

Reply
 
LinkBack Thread Tools Display Modes
Old 11-24-2013, 12:23 PM   #1 (permalink)
Newbie
 
Join Date: Sep 2013
Posts: 24
Thanks: 0
Thanked 1 Time in 1 Post
iTrader Score: 0 reviews
P7100 Governor Springs wrong???

I really need to hear from some P7100 injection pump experts.. I am by no means an experts nor will I ever claim to be. A few months back I built a 12V up with all new parts. Did all the upgrades to the P7100 myself 191 delivery valves, mack rack plug, afc mods, 3K gov springs, 18 deg timing. The upgrades were very easy and straight forward, so I thought at the time.. After reassembly the engine could not idle or run without missing. Many many weeks of troubleshooting led me to many many dead ends. I sent the injection pump to a Injection pump specialist and had it bench tested and everything seemed to be ok talking to them. The engine could still not idle or run at any rpm without missing after getting it back. I know what you may be thinking, "Timing". No it was not timing. Then the whole engine was sent to a performance diesel repair shop and they could not make any progress after 3 weeks.. They blamed it on the injection pump so I took the pump back to the same shop and had it bench tested again with the same results. So I bought a brand new Injection pump and the engine ran perfect. Started switching out all the performance mods from the old pump to the new pump and was shocked when I found the wrong governor springs were installed. It had one very large spring and two very small springs. There was no medium sized spring. I don't know how this was missed by not only me but several other expert diesel engine and injection pump specialists.. I am now out big $$$ from such a simple mistake.
My main question is will having the wrong gov springs installed cause the engine to not idle or fire correctly??
twalls67 is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 11-24-2013, 07:37 PM   #2 (permalink)
Newbie
 
josh97's Avatar
 
Join Date: Apr 2013
Location: ottumwa ia
Posts: 17
Thanks: 0
Thanked 0 Times in 0 Posts
iTrader Score: 0 reviews
Not sure the miss part but if the the springs are to tight it wont idle below 1000 rpm's had to re adjust mine after install there is a proper measurment for the threds that should be showing for the correct setting...And i dont know what it is but im sure some of the experienced guys will chim in...
__________________
95 2500 4x4 auto no plate 4k springs 180 p pump, 191 dv's 90 horse injectors, Borg warner T6 turbo...Over the 500hp mark!!!!
josh97 is offline   Reply With Quote Quick reply to this message
Old 11-25-2013, 08:19 PM   #3 (permalink)
Newbie
 
Join Date: Sep 2013
Posts: 24
Thanks: 0
Thanked 1 Time in 1 Post
iTrader Score: 0 reviews
Thx Josh97..
twalls67 is offline   Reply With Quote Quick reply to this message
Old 11-25-2013, 09:14 PM   #4 (permalink)
Cummins Nut
 
OK12V's Avatar
 
Join Date: Aug 2010
Location: Salem, OR
Posts: 470
Thanks: 28
Thanked 48 Times in 45 Posts
iTrader Score: 3 reviews
Bench testing absolutely had to show that there was a problem with gov. springs. Especially when you missing a spring Why would we even bother sending our pumps to bench test? Looks like you are better troubleshooter then those guys, so go get your money back.
Having your springs misadjusted or imbalanced could definitely mess with your idle and fuel delivery at any given RPM.
I'm not a pro, just using common sense.
Make sure you don't put your delivery valves up side down and set GSK nut at 0.040-0.050
__________________
1997 4x4 extended 125K, ATS Auto, ATS 5 star TC, 4GSK, 16* timing, 5x0.12s, #100, gauges, 6" lift, 37s, 4:10, Detroit locked front, Ford knuckles brakes and free spin hubs, rear LSD with Chevy wheel cylinders
OK12V is online now   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Dodge Cummins Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Display Modes

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


Powered by vBadvanced CMPS v3.2.2

All times are GMT -4. The time now is 07:41 PM.



Powered by vBulletin® Copyright ©2000 - 2014, vBulletin Solutions, Inc.

SEO by vBSEO 3.3.2