Page 1 of 2 12 LastLast
Results 1 to 10 of 13

Thread: Bellhousing Plug

  1. #1
    Join Date
    Dec 2007
    Location
    Jim Thorpe PA
    Posts
    369

    Default Bellhousing Plug

    Looking under my truck, I saw a threaded hole in the bellhousing. I did a search and looked through the manuals and found out (I think) it is a water fording plug. My (maybe dumb) question is: does the plug belong installed at all times, and take it out to drain water after fording, or leave it out, then install it before fording? I would guess it stays in. Also, I saw in the search that it is a pipe plug (The bellhousing fordng plug is a pipe plug...square head. -brute4C, May 18th, 2007, 02:26 PM)-- does that mean it's just a regular hardware store NPT fitting?

  2. #2

    Default

    It is intended to be installed prior to fording an removed after, many truck got a stencil or decal on the dash w/ that instruction. I keep mine in the glove box, it is standard thread, however it isnt a typical pipe plug it is flanged.
    68 M-715 MVPA #2710

  3. #3
    Join Date
    Dec 2007
    Location
    Jim Thorpe PA
    Posts
    369

    Default

    Thanks! So, in normal circumstances, the drain is just open to the environment? I'll have to look around inside and see if the plug was stashed away somewhere.

  4. #4
    Join Date
    Sep 1998
    Location
    North Central Wisconsin
    Posts
    11,520

    Default

    That is correct...in to ford...out the rest of the time. The bellhousing vents the oil from the leaky rear main seal on the 230, among other reasons for it being there...in the fording application, the fording valve pressurizes the axles, gearboxes and master cylinder. With the plug out, the pressurization wouldnt work and would leak out this hole. With it in, one will notice the boot on the shifter will actually inflate, thus telling you the fording system is operating as designed.

    The reason for the pressure is that when one is going through water there is pressure from inside the axle or gearbox going outward, so if there is a leak it will be from the inside out pushing water away, instead of driving in water and possibly having it leak in to those components.


    If you dont have the fording kit with he fording valve to pressurize the stuff, it still keeps water and mud and etc off the clutch...a good thing to protect.

  5. #5

    Default

    Anybody have a detailed picture of one? I made one but the handle or wings are not right I'm sure.
    Liz, covid, murdered 10/19/21

  6. #6
    Join Date
    Jul 2007
    Location
    Rhoadesville, Virginia (five miles from no place)
    Posts
    5,125

    Default

    Quote Originally Posted by brute4c View Post
    That is correct...in to ford...out the rest of the time. The bellhousing vents the oil from the leaky rear main seal on the 230, among other reasons for it being there...in the fording application, the fording valve pressurizes the axles, gearboxes and master cylinder. With the plug out, the pressurization wouldnt work and would leak out this hole. With it in, one will notice the boot on the shifter will actually inflate, thus telling you the fording system is operating as designed.

    The reason for the pressure is that when one is going through water there is pressure from inside the axle or gearbox going outward, so if there is a leak it will be from the inside out pushing water away, instead of driving in water and possibly having it leak in to those components.


    If you dont have the fording kit with he fording valve to pressurize the stuff, it still keeps water and mud and etc off the clutch...a good thing to protect.
    And don't forget to switch the valve in the gas cap too.....

  7. #7
    Join Date
    Sep 1998
    Location
    North Central Wisconsin
    Posts
    11,520

    Default

    If yours has it....some dont..like mine.

  8. #8
    Join Date
    Sep 1998
    Location
    North Central Wisconsin
    Posts
    11,520

    Default

    Heres an image from Saturn Surplus of the M151 cdrain plug for the bellhousing...M715 is similiar...



    Pipe plug with a flange on the head.

  9. #9
    Join Date
    Jul 2007
    Location
    Rhoadesville, Virginia (five miles from no place)
    Posts
    5,125

    Default

    Quote Originally Posted by brute4c View Post
    If yours has it....some dont..like mine.
    Really? I wasn't aware of that. What did they do in that situation then?

  10. #10
    Join Date
    Sep 1998
    Location
    North Central Wisconsin
    Posts
    11,520

    Default

    Mine is the non vented variety. The fording caps are vented and non vented by the position of the lever...so mine is like the fording one locked in the fording position...the gas tank would be pressurized through the vent line just like the fording one.

    When I first got my truck and drove it a distance, it died and wouldnt start...checked a bunch of stuff, then realized there was no fuel to the carb...took off the gas cap and it sucked in deeply...got home and checked the vent line from the filler neck to the air cleaner...where it gets low between the tank and the air cleaner, it was full of gas...blew out a ton with the compressor...probably had been overfilled enough times over the years and it settled in the low part of the hose blocking off the venting of the tank.

Similar Threads

  1. Bellhousing Q?
    By pghjeeper in forum Stock Tech
    Replies: 6
    Last Post: May 28th, 2008, 11:30 PM
  2. What bellhousing?
    By Grantshire in forum Modified Tech
    Replies: 14
    Last Post: February 22nd, 2008, 04:11 PM
  3. Bellhousing question
    By pistolnut in forum Modified Tech
    Replies: 12
    Last Post: February 4th, 2007, 10:46 AM
  4. Diesel bellhousing patterns
    By svobronco in forum Open Discussion Archives
    Replies: 13
    Last Post: March 3rd, 2004, 08:38 AM
  5. Ford Bellhousing?
    By Hetzer in forum Modified Tech Archives
    Replies: 10
    Last Post: January 19th, 2004, 07:22 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  


Site Upgrade, Design Modifications & Administrative Support by:
Palm River Enterprises LLC, IT Solutions
President: Tom King, User ID=teking
This site is owned and operated by:
M715 Zone, LLC
President: Jon Schmidt, User ID=brute4c


If you have any suggestions, comments, problems or questions, contact:  brute4c@m715zone.com
Use of this site means you understand and agree to our TERMS OF USE

Copyright Notice:
This web site is subject to the protection of the copyright laws of the United States and other countries. Except for Personal Use Only, you may not modify, copy, distribute, transmit, display, perform, reproduce, publish, license, create derivative works from, transfer, or sell any information obtained from any part of the M715 Zone website without the prior written permission of M715 Zone, LLC. Written permission can only be obtained by contacting brute4c@m715zone.com

Copyright 1998-2024