Reply
 
Thread Tools Display Modes
 
Old 06-18-2019, 07:42 PM   #1
Bus Nut
 
Joe45's Avatar
 
Join Date: Nov 2015
Location: AZ
Posts: 328
Year: 2004
Engine: 7.3L Navistar T444e Diesel
Ceiling removal hell/tracks

My skoolie had tie-down tracks just above the windows, front to back. Those came out easy.


I went to remove the ceiling panels today, and found that the anchors that once held the tracks to the ceiling are holding the ceiling to the body. They are like rivets with an open center for the bolts: like a threaded donut.



I banged them, tried cutting them, but won't budge without excessive banging and slamming after cutting.


Does anyone have any ideas how to get these things off?


I've attacked a picture.
IMG_7709.jpg
Joe45 is offline   Reply With Quote
Old 06-18-2019, 07:54 PM   #2
Bus Crazy
 
HazMatt's Avatar
 
Join Date: Oct 2017
Location: E Central Tejas
Posts: 1,997
Year: 1998
Coachwork: Thomas
Chassis: IH 3800, 8 window
Engine: T444E w/ Spicer 5-speed MT
Rated Cap: I prefer broad-brims hats
Never seen the like before. Not that that'll slow me down in flappin' my keyboard atcha!
Is it possible the receivers are threaded into something behind the ceiling? Where are these threaded dog nuts at, in relation to the hat channels?
Have you tried taking a chisel, stamping a groove into the offending fastener, and then using hammer & chisel (at @45į) to spin it off. Unlikely, but may be left hand thread.
Could reinstall with LokTite, and use that as a corkscrew at last resort.

Quote:
Originally Posted by Joe45 View Post
My skoolie had tie-down tracks just above the windows, front to back. Those came out easy.


I went to remove the ceiling panels today, and found that the anchors that once held the tracks to the ceiling are holding the ceiling to the body. They are like rivets with an open center for the bolts: like a threaded donut.



I banged them, tried cutting them, but won't budge without excessive banging and slamming after cutting.


Does anyone have any ideas how to get these things off?


I've attacked a picture.
Attachment 34679
AHA!!! Theres your problem!
Attack the fitting, not the picture...
__________________
Those who say that it cannot be done should not interrupt the people doing it.
HazMatt is offline   Reply With Quote
Old 06-18-2019, 08:02 PM   #3
Bus Nut
 
Joe45's Avatar
 
Join Date: Nov 2015
Location: AZ
Posts: 328
Year: 2004
Engine: 7.3L Navistar T444e Diesel
Can't get behind them without removing the ceiling panels! Kind of a catch 22!!!
Joe45 is offline   Reply With Quote
Old 06-18-2019, 08:05 PM   #4
Bus Nut
 
Joe45's Avatar
 
Join Date: Nov 2015
Location: AZ
Posts: 328
Year: 2004
Engine: 7.3L Navistar T444e Diesel
Just had a thought: Maybe I can just cut off just above the horizontal frame piece that the nuts are fastened to and remove the panel above that. This would allow me to access them from behind.



Also, I can just leave that area below them and use those anchors to attach cabinets, etc.The area will be covered anyway.
Joe45 is offline   Reply With Quote
Old 06-18-2019, 08:09 PM   #5
Bus Crazy
 
HazMatt's Avatar
 
Join Date: Oct 2017
Location: E Central Tejas
Posts: 1,997
Year: 1998
Coachwork: Thomas
Chassis: IH 3800, 8 window
Engine: T444E w/ Spicer 5-speed MT
Rated Cap: I prefer broad-brims hats
That might be the more elegant solution. Its pretty obvious they aren't going ANYWHERE, easily. Heck of a sturdy place to hang an armoire!
Maybe hole saw the most inconspicuous one, to see what you're up against...
__________________
Those who say that it cannot be done should not interrupt the people doing it.
HazMatt is offline   Reply With Quote
Old 06-18-2019, 08:15 PM   #6
Bus Nut
 
Join Date: Sep 2018
Posts: 870
Year: 2007
Coachwork: Thomas Built
Chassis: Minotour
Engine: Chevy Express 3500 6.6l
Drill out the center?
Danjo is offline   Reply With Quote
Old 06-18-2019, 08:19 PM   #7
Traveling
 
Join Date: Dec 2017
Location: Dawsonville, Ga.
Posts: 8,955
Year: 1999
Coachwork: Genesis
Chassis: International
Engine: DT466/3060
Rated Cap: 77
They are threaded inserts. You'll need to grind the flange off or drill them out. I would guess they would dull drill bits rapidly. I just put a bunch in my doors.
Attached Images
File Type: jpg 20190617_181511.jpg (55.8 KB, 17 views)
o1marc is offline   Reply With Quote
Old 06-18-2019, 08:26 PM   #8
Bus Nut
 
Join Date: Sep 2018
Posts: 870
Year: 2007
Coachwork: Thomas Built
Chassis: Minotour
Engine: Chevy Express 3500 6.6l
You might be able to screw a screw with a nut on it onto it, tighten the nut down and then spin it out.
Danjo is offline   Reply With Quote
Old 06-18-2019, 08:30 PM   #9
Traveling
 
Join Date: Dec 2017
Location: Dawsonville, Ga.
Posts: 8,955
Year: 1999
Coachwork: Genesis
Chassis: International
Engine: DT466/3060
Rated Cap: 77
Quote:
Originally Posted by Danjo View Post
You might be able to screw a screw with a nut on it onto it, tighten the nut down and then spin it out.
Not metal ones, that's like trying to spin out a pop rivet.

Threaded inserts are basically like a pop rivet the difference being the mandrel is threaded to pull the back of the insert forward. You squeeze it until it is sandwiched between the metal
Attached Images
File Type: jpg 20190618_203650.jpg (60.6 KB, 13 views)
o1marc is offline   Reply With Quote
Old 06-18-2019, 09:30 PM   #10
Bus Nut
 
Joe45's Avatar
 
Join Date: Nov 2015
Location: AZ
Posts: 328
Year: 2004
Engine: 7.3L Navistar T444e Diesel
Holy cow! Yeah, I'd probably need a dozen brand new drill bits each!


I'm gonna go with cutting above them and leaving them in to anchor stuff.


Thank you all!


Joe45 is offline   Reply With Quote
Old 06-19-2019, 12:39 AM   #11
Bus Nut
 
Join Date: Mar 2011
Location: Port angeles, Wa
Posts: 294
Year: 90
Coachwork: bluebird conventional
Chassis: international
Engine: dt466
Rated Cap: 72
What you have there are called nut-serts. Drilling them is the best way to go. You actually just need to drill about 1/4 in.
bluebird90 is offline   Reply With Quote
Old 06-19-2019, 01:02 AM   #12
Bus Nut
 
Joe45's Avatar
 
Join Date: Nov 2015
Location: AZ
Posts: 328
Year: 2004
Engine: 7.3L Navistar T444e Diesel
Quote:
Originally Posted by bluebird90 View Post
What you have there are called nut-serts. Drilling them is the best way to go. You actually just need to drill about 1/4 in.

That's good to know. Thank you.
Just seems that it will eat up drill bits.
I may give it a try.
Joe45 is offline   Reply With Quote
Old 06-19-2019, 02:11 AM   #13
Bus Crazy
 
Join Date: Sep 2015
Posts: 1,337
Year: 2002
Coachwork: Thomas Built Bus
Chassis: Freightliner FS65
Engine: Caterpillar 3126E Diesel
Rated Cap: 71 Passenger- 30,000 lbs.
Disclaimer: I have not had to remove any of these ...


One way to remove rivets is to use the angle grinder with the cut-off blade in it. You could adapt this technique to this situation as well.


Cut "X"'s through the portion of the "lag" nut on the inside of the ceiling panel. Then use an air chisel (or a cold chisel and hammer) and break the piece apart by striking almost parallel with the ceiling panel, perpendicular to the bolts that used to be in the "lag" nuts.
Native is offline   Reply With Quote
Old 06-19-2019, 02:19 AM   #14
Bus Nut
 
Joe45's Avatar
 
Join Date: Nov 2015
Location: AZ
Posts: 328
Year: 2004
Engine: 7.3L Navistar T444e Diesel
Thanks.
Will consider that too!
Joe45 is offline   Reply With Quote
Old 06-19-2019, 10:25 AM   #15
Skoolie
 
WARGEAR's Avatar
 
Join Date: Mar 2018
Location: Fingerlakes region NY
Posts: 195
Year: 1999
Coachwork: AmTran/Wolfington
Chassis: 3800
Engine: International DT466E 190HP variant
Rated Cap: 72 pax 29500 GVWR
Nut-sert is an accurate term for those. I’ve heard them called rivnuts in the past too! Installs like a rivet but has threads like a nut! Cut off the flange of that top hat with a grinding wheel and it’ll knock right in. That’s if you decide you want to!
__________________
-Nick
WARGEAR is offline   Reply With Quote
Old 06-19-2019, 12:40 PM   #16
Traveling
 
Join Date: Dec 2017
Location: Dawsonville, Ga.
Posts: 8,955
Year: 1999
Coachwork: Genesis
Chassis: International
Engine: DT466/3060
Rated Cap: 77
Quote:
Originally Posted by WARGEAR View Post
Nut-sert is an accurate term for those. Iíve heard them called rivnuts in the past too! Installs like a rivet but has threads like a nut! Cut off the flange of that top hat with a grinding wheel and itíll knock right in. Thatís if you decide you want to!
Not an accurate term, Nutsert is a brand name of a threaded insert, which is the proper term for the item. Rivnut is also a brand name.
o1marc is offline   Reply With Quote
Old 06-19-2019, 10:17 PM   #17
Skoolie
 
WARGEAR's Avatar
 
Join Date: Mar 2018
Location: Fingerlakes region NY
Posts: 195
Year: 1999
Coachwork: AmTran/Wolfington
Chassis: 3800
Engine: International DT466E 190HP variant
Rated Cap: 72 pax 29500 GVWR
Quote:
Originally Posted by o1marc View Post
Not an accurate term, Nutsert is a brand name of a threaded insert, which is the proper term for the item. Rivnut is also a brand name.
One of those things where a name has become a household brand that people forget what the things are really called (channel locks, vice grips, Brillo pad, etc.) the brand name becomes the item name!
WARGEAR is offline   Reply With Quote
Old 06-19-2019, 10:45 PM   #18
Bus Crazy
 
HazMatt's Avatar
 
Join Date: Oct 2017
Location: E Central Tejas
Posts: 1,997
Year: 1998
Coachwork: Thomas
Chassis: IH 3800, 8 window
Engine: T444E w/ Spicer 5-speed MT
Rated Cap: I prefer broad-brims hats
...Xerox, Zipper, Aspirin...
__________________
Those who say that it cannot be done should not interrupt the people doing it.
HazMatt is offline   Reply With Quote
Old 06-19-2019, 11:56 PM   #19
Bus Nut
 
Joe45's Avatar
 
Join Date: Nov 2015
Location: AZ
Posts: 328
Year: 2004
Engine: 7.3L Navistar T444e Diesel
Quote:
Originally Posted by WARGEAR View Post
Nut-sert is an accurate term for those. Iíve heard them called rivnuts in the past too! Installs like a rivet but has threads like a nut! Cut off the flange of that top hat with a grinding wheel and itíll knock right in. Thatís if you decide you want to!



Can't get the angle on the cutoff disk enough to cut off the flange, so I did the "X" thing. Hopefully I can take them out with a chisel.
Joe45 is offline   Reply With Quote
Old 06-20-2019, 02:19 AM   #20
Bus Nut
 
bus-bro's Avatar
 
Join Date: May 2007
Location: Whidbey Island, WA.
Posts: 827
Year: 1984
Coachwork: Blue Bird
Chassis: All American
Engine: 3208 na boat anchor
Rated Cap: 2
To me, that looks like a rivnut put in the perforated metal. From the picture I can't see that it's connected to the bus itself. What I'm trying to say is that you might not have to remove it to take down the perforated ceiling metal, if that's what you're trying to do.
bus-bro 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


» Featured Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 06:32 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
×