Welcome Guest [Log In] [Register]
Home

Welcome to the CJ-3B Bulletin Board, the discussion forums section of the website CJ3B.info. Everyone is invited to view the postings here, but you must register as a member in order to post messages. The moderator reserves the right to remove items posted. Items may be archived in the Tech Tips section of the website. If you post a tech problem, please follow up by posting the solution when it is found, as it may be useful to other readers. For forums covering other Jeep models, see the bottom of this page.

Search for keywords or phrases anywhere in the CJ-3B Bulletin Board using Google. Enter key words here.

Google
WWW CJ-3B Bulletin Board
You're currently viewing the forums as a guest. This means there are some features you can't use. If you register, you'll be able to post messages and use member-only features such as customizing your profile and sending personal messages. Registration is simple and free.


Join the CJ-3B Bulletin Board!


If you're already a member please log in to your account to access all of our features:

Username:   Password:
Add Reply
Oil? Fitting
Topic Started: Jan 18 2013, 11:51 AM (518 Views)
Rus Curtis
Member
[ *   *   *   *   *  ]
I found this fitting in a box along with all my other old fittings. Most are generic and as I swapped them all out, I noticed this one was different. As you can see from the image, it is a reduction flow type.

Posted Image

I can't find reference to this when I scan the Parts Manual. My assumption is this was part of the oil circulation plumbing. I didn't notice when I took it off that it was different so can't remember where it might have come from.

Anyone else notice a fitting like this, or know where it might fit? I'd think an odd part like this would have been specifically referenced.

Thanks.
Rus Curtis
Alabama
'54 CJ-3B "Green Gruntt"
Bantam T3-C
Offline Profile Quote Post Goto Top
 
Lawrence
Member Avatar
Lawrence
[ *   *   *   *   *  ]
Rus,
This fitting was used to attach the fuel line to the fuel pump. (1955 3B) The line was attached to the fuel pump at 90 degrees.
Notice the old original fuel line had male connections on each end not like the aftermarket one with male and female connections.
Sure wish a NOS was available. Have look for 12 years.

Lawrence

Posted Image
Also used here
Posted Image
1955 CJ3B
Family Tradition
Decatur, AL
~~"Seen it all, done it all, can't remember most of it"~~
~~"We cannot direct the winds but we can adjust our sails"~~
http://cj3b.info/Owners/Wade.html
http://cj3b.info/Events/SEWillys2017.html
http://cj3b.info/Owners/WadeRiver.html
Offline Profile Quote Post Goto Top
 
Rus Curtis
Member
[ *   *   *   *   *  ]
Lawrence,
The thing is I've got these 90 degree fittings everywhere! But this one "is not like the others!" - to borrow a phrase.

Are you saying the restricted flow elbow is for the gas line??
Rus Curtis
Alabama
'54 CJ-3B "Green Gruntt"
Bantam T3-C
Offline Profile Quote Post Goto Top
 
Lawrence
Member Avatar
Lawrence
[ *   *   *   *   *  ]
Rus,
Sorry I did not read your post in detail.
Thought you were looking for locations.
Do not think that fitting is a reduction fitting but the design of a a flare fitting.
May be wrong threads do not taper.
Lawrence
1955 CJ3B
Family Tradition
Decatur, AL
~~"Seen it all, done it all, can't remember most of it"~~
~~"We cannot direct the winds but we can adjust our sails"~~
http://cj3b.info/Owners/Wade.html
http://cj3b.info/Events/SEWillys2017.html
http://cj3b.info/Owners/WadeRiver.html
Offline Profile Quote Post Goto Top
 
Bob_webber
Member Avatar
Member
[ *   *   *   *   *  ]
i can't tell from the picture if it is a cone on the inside, or an offset drilled hole.

if it is coned it could be to allow for a flared steel line and a female nut.

if it is just a offset drilled hole i am stumped.

the only thing i remember reading about reducing oil flow, is (don't quote me) but something about oil flowing on the timing gears, from what i remember it was to keep more pressure on one of the bearings.
i have never had an f head apart and i don't even know what they would have used to do so.

if i had to guess if it was a factory change, the most likely place to find information about it would be in an old service bulletin. maybe that is why it would not show in a parts manual.

another thought if it is drilled offset it might also be to direct flow to one side of the hole. considering the hole is directly opposite of the inlet it would allow for easy indexing.
53 3b, early cj5 frame (hurricane),2.43 ratio t case 26 tooth with 1 1/4" case (my own creation), late 60's c5 ross steering box, all range od, parts from a welder generator, and parts from about 9 different jeeps and counting. my every last penny and ounce of patients creates what we call the FrAnken B, the jeep that never was

bob, north east Ohio
Offline Profile Quote Post Goto Top
 
Doug
Member Avatar
Meridian, Idaho
[ *   *   *   *   *  ]
Rus,

Yes my engine has one just like it. I have no idea if its original equipment or where it was supposed to go if it is, but I have it installed on the lower connection of the oil line on the rear of the block and it works like a champ. The hole in the fitting is about the same size as the inner diameter of the hard oil line.
1963 CJ3B - F134 Hurricane, T-90C, D-18, 5.38s, Overdrive, 938YF, 12V alternator
1969 CJ5 - Dauntless V6, T-14, D-18
2004 TW 200
Offline Profile Quote Post Goto Top
 
oldtime
Member Avatar
MODERATOR
[ *   *   *   *   *  ]
As you know orfice restrictions are generally used to regulate fluid or gaseous volume.
The various connections used on a standard CJ-3B are:

1) Fuel outlet at pump
Fuel outlet is regulated by the pressure valve inside the fuel pump.

2) Fuel inlet at carburetor
Fuel inlet is regulated by the carburetors inlet valve.

3) Forewardmost oil outlet connection on main oil gallery.
Oil flow through the filtration system is regulated by the stand pipe orfice.

4) Oil cannister inlet connection
Same as above #3

5) Vacuum manifold connections
Other than tube diameter no restictions are used.

6) Rearmost ) oil outlet connection on main oil gallery to head.
This particular connection is 3/16" diameter flare nut (not 1/4 flare nut).

Please verify your restriction diameter for #6.

This item shown above appears to be the 3/16" connection.
I believe its part # GM 137420 3/16" connector, flare tube 90* elbow

As Doug mentioned that implies it taps into the rear of the block at the main oil gallery.
Can you verify the diameter of the restricted orfice ? .090 or ?
Currently building my final F-134 powered 3B .
Rock Crawler using factory parts from the Willys Motors era (1953-1963)

http://s4.zetaboards.com/CJ3B_Bulletin_Board/topic/30228766/1/#new
Offline Profile Quote Post Goto Top
 
Rus Curtis
Member
[ *   *   *   *   *  ]
Apologies for this fitting loosing some detail when displayed in a 2D image.

I can see now I left out some detail.

Lawrence, understandable. However, it is a reduction as the other end takes the hose/line flare end. This end (male) has the tapered threads for the block. Inside is this reduction hole. To me they all looked just alike which is why I didn’t pay attention to the location when I took it off and didn’t notice the difference until the parts guy pointed it out.

Bob, offset drilled hole.

Doug, what led you to notice and then remember where it was?

Oldtime, when I dug the inlet hose out of its storage box, I would have sworn this fitting was attached to the inlet hose. When it was pointed out to me about the reduction I got concerned ‘cause it made no sense to have this on the filter circuit to control flow – as you pointed out. Perhaps it was just in the box but not connected.

For point #6, the orifice is approx 7/64”. I had to use a drill to measure as I couldn’t get a mic on it. The 1/8” drill bit was too big. The 7/64” fit inside with very little left over. That would make it 0.109375” on the calculator.

I appreciate the comments. Finding a replacement will be fun. The female end was squashed just a bit as I wasn't very carefull when removing it way back when. Of all the fittings that had to be ruined.....
Rus Curtis
Alabama
'54 CJ-3B "Green Gruntt"
Bantam T3-C
Offline Profile Quote Post Goto Top
 
oldtime
Member Avatar
MODERATOR
[ *   *   *   *   *  ]
I've seen one with the .090" restriction and 3 or 4 with the .110" restriction.

I believe have some extra 3/16" x 90* flare nut connections with the .110" restriction.
Currently building my final F-134 powered 3B .
Rock Crawler using factory parts from the Willys Motors era (1953-1963)

http://s4.zetaboards.com/CJ3B_Bulletin_Board/topic/30228766/1/#new
Offline Profile Quote Post Goto Top
 
Rus Curtis
Member
[ *   *   *   *   *  ]
oldtime,Jan 20 2013
01:44 PM
I've seen one with the .090" restriction and 3 or 4 with the .110" restriction.

I believe have some extra 3/16" x 90* flare nut connections with the .110" restriction.

Oldtime,
Have "extra?" Implies you'd part with one. How much would it cost me to pry one out of your collection vs. me spending hours searching for one?
Rus Curtis
Alabama
'54 CJ-3B "Green Gruntt"
Bantam T3-C
Offline Profile Quote Post Goto Top
 
ZetaBoards - Free Forum Hosting
Free Forums with no limits on posts or members.
« Previous Topic · CJ-3B Posts · Next Topic »
Add Reply

Other Willys Jeep forums:

The CJ-2A Page has a CJ-2A Message Board.
There is also a CJ-3A Page Forum.
For CJ-5 and Dauntless V6 postings, see the Early CJ-5 Bulletin Board.
The Old Willys Forum is dedicated to wagons and pickups.
Surrey Gala and Dispatcher Jeeps are under DJ-3A Dispatcher Posts.
The M38/M38A1/M606 Preservation Group has a forum.
For other CJ and military Jeeps, see the g503 Message Boards.
See the Forward Forum for Forward Control Jeeps.
To post ads for other Willys parts or Jeeps, see the WillysTech Buy/Sell/Swap Message Board.
For tech problems with other Willys models, try the WillysTech e-mail list.
The Bantam Trailer forum covers Jeep trailers.