Reply
 
Thread Tools Display Modes
 
Old 12-19-2014, 12:06 PM   #1
Mini-Skoolie
 
Join Date: Sep 2014
Location: Portland, OR.
Posts: 40
Year: 1972
Coachwork: Homemade
Chassis: Crown Supercoach
Engine: Cummins NHH 220, E-F10spd
Crown cummins nhh220 injector leaking

Here are pictures of the fuel lines going into the head, the bigger line should be the inlet and that's the one that seems to be leaking. This is on a 72 crown coach with an cummins nhh-220. I didn't want to do any damage but I'm pretty sure this beast is running rough because of this, the book says 8lbs of torque on the injector but it's an old reprint of a manual from liberatedmanuals.org and it's got terrible pics.
I'm sure someone out there has the procedure for fixing this.







My book also says I can open all the injectors alittle and run it to de-carbonized the injectors, anyone know anything about that process?
__________________
Good, Fast, Cheap - Pick any two
Vanopolis is offline   Reply With Quote
Old 12-23-2014, 10:13 AM   #2
Mini-Skoolie
 
Join Date: Sep 2014
Location: Portland, OR.
Posts: 40
Year: 1972
Coachwork: Homemade
Chassis: Crown Supercoach
Engine: Cummins NHH 220, E-F10spd
Alright, after looking at the detail picture of my engine for a while I've decided the spring and three nuts here in my pics are not the injector. Now that I've figured out what they are and that this must be oil leaking out so I tightened the **** out of it.

I'm making a special flathead socket to remove the mesh screen on the pt fuel pump since mine is being difficult.
__________________
Good, Fast, Cheap - Pick any two
Vanopolis is offline   Reply With Quote
Old 12-27-2014, 09:46 PM   #3
Mini-Skoolie
 
Join Date: Oct 2014
Posts: 15
The NH engine has been out of production for nearly 40 years. Parts are very rare and very expensive. Unfortunately I doubt you will be able to find any fuel system parts at all. Last I knew, Kawasaki had bought the design for use in their heavy equipment, but I think it is also obsolete there.
Good luck.
bigmackone is offline   Reply With Quote
Old 08-06-2015, 03:38 PM   #4
New Member
 
Join Date: Aug 2015
Posts: 2
They are not the injector, but the injector tubes. the spring holds the seal so oil does not leak out of the head.
TomG is offline   Reply With Quote
Old 08-06-2015, 03:41 PM   #5
New Member
 
Join Date: Aug 2015
Posts: 2
Parts are hard to come by, But we still have 2 gilligs in active service. One 220 and one 290. We still posess lots of heads a couple used complete engines and parts for the horizontals. Shame that 3 were driven to the scrap yard last year soon after your thread was started.
TomG is offline   Reply With Quote
Old 08-07-2015, 06:38 PM   #6
Mini-Skoolie
 
Join Date: Sep 2014
Location: Portland, OR.
Posts: 40
Year: 1972
Coachwork: Homemade
Chassis: Crown Supercoach
Engine: Cummins NHH 220, E-F10spd
The fuel lines in the pics have dried up mostly after a gentle tightening. I've put a few thousand miles on her and still building the home part inside, working full time has nearly halted the build.
i would love to buy as much as I can find engine wise. I haven't had any luck scavenging truck scrap yards here in Pennsylvania. I'll be driving the bus to the Pacific NW and down through California next year when the inside is complete, hunting for spare parts and visiting family.
She hates the cold, leaks alittle and takes her time. Otherwise in good running order at the moment.

Let me know if you hear of good Crown or Nhh-220 Cummins parts going to scrap or for sale as i could use some spare parts. Vanopolis@gmail.com
__________________
Good, Fast, Cheap - Pick any two
Vanopolis is offline   Reply With Quote
Old 08-07-2015, 06:52 PM   #7
Bus Geek
 
Tango's Avatar
 
Join Date: Mar 2011
Location: Houston, Texas
Posts: 6,169
Year: 1946
Coachwork: Chevrolet/Wayne
Chassis: 1- 1/2 ton
Engine: Cummins 4BT
Rated Cap: 15
"She hates the cold, leaks a little and takes her time."

Sounds like one of my ex-wives.Ain't sayin' which.
Tango is offline   Reply With Quote
Old 08-07-2015, 08:44 PM   #8
Skoolie
 
Join Date: Mar 2015
Posts: 231
Quote:
Originally Posted by Tango View Post
"She hates the cold, leaks a little and takes her time."

Sounds like one of my ex-wives.Ain't sayin' which.
Haha, I was thinking it sounds quite a lot like ME!
c_hasbeen is offline   Reply With Quote
Old 08-07-2015, 08:55 PM   #9
Skoolie
 
Join Date: Mar 2015
Posts: 231
Vanopolis, PM SENT
c_hasbeen is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not 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 Off
Pingbacks are Off
Refbacks are Off


» Virginia Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 08:45 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.