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Mounting Cockpit Seats on a Floating Floor

I am in the process of removing my old carpeting and padding to replace with a new material that I intend to float. I discovered that the carpet pad appears to be of two types. In the front, until behind the seats, it is a dense black material. The rest of it appears to be that cheap carpet padding.
 
When the cockpit seats are installed, the carpet and underlayment are compressed significantly. The attached photo shows what is left after I cut away the carpet over the seat base. It had been the Flexsteel chair with power footrest. The base plate is approximately ten inches square, with large bolts (3/8" ?) in an eight inch square. I discovered that there were another set of holes (about 1/4"), going all the way through the floor, about an inch wider than the larger bolts. There had never been an attempt to seal the extra four holes; they were hidden on the top by the nap of the carpeting.
 
Anybody have any idea what those other four holes were for? Why were they not sealed (there was no sign of any water penetration inside the coach from them)?
 
I am replacing the Flexsteel with Villa seats (Thank you Bill!). The holes are different, so I will have several new holes, in addition to the four smaller holes. My plan is to glue dowels into those holes and caulk the bottom locations. Is that good enough, or should I do more to seal the unused holes?
 
Finally, the subject of this message:
 
If I mount the new seats over the new flooring, they are obviously not floating anywhere near those eight bolts. Is that a problem? I have not yet made the final decision on flooring, either vinyl or a laminate product, with "click-lock" edging. I wanted to see how smooth the final subfloor surface is.
 
Okay, one more topic: My DW would really like to remove the factory installed tile in the kitchen and bathroom. Having previously done some of that in our home, she has zero interest in *us* removing the tile. Has anyone tried putting a tile-thick underlayment on the wooden subfloor, and then put new flooring over both surfaces? (Her real interest is in eliminating the grout lines, which are not fun to clean.) The vinyl product we are considering comes in six foot lengths. The salesman promised that it could be installed directly over a tiled floor, without having to  fill in the grout lines.
 
Sorry for the length; I blame it on my typing ability. It's not hunt-and-peck, but it is not fast enough to prevent my mind from wandering while inputting.
 
Thanks for any and all feedback,
 
Trent

Trent and Jean Eyler
2000  U295  4003  WTFE  ISC  350
Build#5603 MC#17385

Re: Mounting Cockpit Seats on a Floating Floor

Reply #1
Maybe the coach had Villa seats before the Flexsteel.  I have the Villa seat in my coach.  I can measure my hole pattern and you can compare the dimensions.

John M
John & Carm Morales

"We travel not to go anywhere, but to just go.  We travel for travel's sake.  Our great desire is to move."

Re: Mounting Cockpit Seats on a Floating Floor

Reply #2
Trent,
I don't have suggestions for all your questions, but I did deal with changing the bases for the chairs and the differing bolt pattern from the new bases (Flexsteel) from the original (unknown) which were attached to Flexsteel chairs. I used the original bolt pattern to bolt a quarter inch thick 12" X 12" steel adapter plate that I made. I used the old bases as a template to drill holes in the plate, then used the new bases which have a smaller foot print and a subsequently smaller bolt pattern to drill a second set of holes in the plate. The reason I wanted to use the original holes is obviously because that is where the steel framing was. Using a magnet, I verified that there was no framing where all four bolts from the new base would be able to go through framing in the location where the chair needed to go. Anyway, I posted on that project in this thread;
Safety Belts
This was part of a larger flooring project that I haven't posted about yet. In summary, I removed the old underlayment, much of which was ruined by heater core leak, and went over the sub floor with 1/4" plywood and then 5/16" rubber gym floor material (extremely dense and heavy) and then approx. 5mm thick luxury vinyl click lock floating floor, which actually specified no underlayment to be used. Obviously the original black heavy foam composite would have had to much give to use with this kind of floor. The gym flooring that I used, being so dense, was in my judgement firm enough to use without endangering the somewhat fragile clicklock joints of the luxury vinyl tiles. Also the combination of the 1/4" plywood and 5/16" rubber made the floor thickness come out even with the previously installed bamboo flooring that I had installed int the rest of the coach (for which I use 1/4" thick cork underlayment). I cut the quarter inch plywood and sheet rubber to fit around the adapter plates, so that the floor is floating around the chair bases with only elastomeric polyurethane caulking connecting the floating floor to any hard mounted objects such as trim etc. This is also the way I did the floating bamboo floor, and so far no issues with any of it. I really like the vinyl tiles I used, which were commercial traffic rated and have 20 mil wear layer, IIRC. It seems quite durable and if I ever decide to replace it, I will be able to remove it and use it as a perfect template.
Don
Finally, the subject of this message:
 
If I mount the new seats over the new flooring, they are obviously not floating anywhere near those eight bolts. Is that a problem? I have not yet made the final decision on flooring, either vinyl or a laminate product, with "click-lock" edging. I wanted to see how smooth the final subfloor surface is.
 
Trent
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Don & Tys
1999 U270 3602 WTFE #5402
Xtreme Stage 1 w/Headlight, Step Conversion, etc.
2009 Honda Fit Sport with Navi
Freedom is NOT "just another word for nothing left to lose"... with apologies to Kris Kristofferson

Re: Mounting Cockpit Seats on a Floating Floor

Reply #3
Don,
 
I thought I understood your explanation of your use of the adapter plates until I saw your picture. On the copilot side, you can see the bolt heads, probably securing the plate through the original seat holes. There are bolts that come up through the adapter plate to attach the seats. How are those seat bolts mounted to the adapter plate? Did you have to remove subfloor to allow the bolt heads?
 
On the pilot side, I see the four bolts for mounting the seats. But I do not see how the plate is attached to the floor. Maybe the two seat attachments are at different stages of installation?
 
Color me a little confused, but this grasshopper is anxious to learn from the master!
 
Thanks,
 
Trent
Trent and Jean Eyler
2000  U295  4003  WTFE  ISC  350
Build#5603 MC#17385

Re: Mounting Cockpit Seats on a Floating Floor

Reply #4
Trent this link (also in the post above) as I believe that will clarify a bit: Safety Belts
But I will quote the text and add the picture here as your subject heading will make it easier to search in the future.
Edit: I will add that the bolt heads  are the original holes (and fasteners for that matter and the studs with nuts on them are the wheel studs. The wheel studs have a flat head with a serrated shoulder. You drill a hole slightly smaller than the diameter of the serrations, add a few drops of oil and an impact wrench with a thick washer under the nut to set them. The heads of the studs are flat enough that I merely made a counter sink hole in the 1/4" plywood that is laid over the subfloor. The original bolts are grade 8 7/16" fine thread as are the studs I used. I hope this explains it!

Quote
I've bought two new Flexsteel chairs as well as two new Flexsteel pedestals. Aside from the passenger chair pivot bolt constantly loosening itself, the original pedestals were too low to safely accommodate the powered footrest option added to the passenger chair. When I bought the new pedestals, I assumed the bolt spacing and pattern would be the same... apparently, Foretravel used different pedestals or else Flexsteel changed the bolt pattern spacing between the time our coach was built and when I bought the new pedestals. In any case, I wanted the pedestals to be bolted to the framing on all four holes so I made a adapter plates. I used the necessity of making new adapter plates as an opportunity to move the position of the driver chair forward about an inch and a quarter, and the passenger chair slightly towards the center line of the coach and forward. The adapter plates are made out of 12 by 12 inch by quarter inch thick steel plates. The bolts holding the chairs in place are wheel studs pressed into the back side of the steel plate (the inner bolt pattern in the picture) with counter sunk holes in the plywood for the flat heads of the studs. The chairs are easily removable now without having to go underneath the coach, should necessity ever present itself. The outer bolt pattern is the original one Foretravel used and all four holes pass through framing. The front bolts of the driver's chair are somewhat difficult to access from underneath, so I am glad to never have to do that again!
Don,
 
I thought I understood your explanation of your use of the adapter plates until I saw your picture. On the copilot side, you can see the bolt heads, probably securing the plate through the original seat holes. There are bolts that come up through the adapter plate to attach the seats. How are those seat bolts mounted to the adapter plate? Did you have to remove subfloor to allow the bolt heads?
 
On the pilot side, I see the four bolts for mounting the seats. But I do not see how the plate is attached to the floor. Maybe the two seat attachments are at different stages of installation?
 
Color me a little confused, but this grasshopper is anxious to learn from the master!
 
Thanks,
 
Trent

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Don & Tys
1999 U270 3602 WTFE #5402
Xtreme Stage 1 w/Headlight, Step Conversion, etc.
2009 Honda Fit Sport with Navi
Freedom is NOT "just another word for nothing left to lose"... with apologies to Kris Kristofferson

Re: Mounting Cockpit Seats on a Floating Floor

Reply #5
Not sure I would bother to dowel the holes.  Just use a sheet of aluminum larger than all of them underneath/top of wheel well and drill through it in the new bolt pattern for the new chairs. Seal with polysulfide around perimeter of the sheet.

To properly install a floating floor, find a thickness of plywood very slightly thicker than the flooring.  Cut it 1" smaller in width and length than the seat pedestal.  Install the seat on it.  There is now a 1/2" opening under the seat mounting plywood all around.  Install the floating floor with a 1/4" gap to the plywood.  Visually you will not be able to tell, but the flooring will be able to move.

Same applies to any furniture sitting on the floor.  You can make it appear that it is directly on the floor, but raises 1/16" or so above it (just enough to give the floating floor room to expand/contract) with the flooring going just under the furniture so it appears that the furniture is on the new floor.

Been there, done that!
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: Mounting Cockpit Seats on a Floating Floor

Reply #6
Don,

Your explanation of the use of studs sounds like the perfect solution for this situation; I have never before used them.

I have added a statement from your original message, that you did not include in the part you quoted:

The front bolts of the driver's chair are somewhat difficult to access from underneath, so I am glad to never have to do that again!

Now you tell me! The passenger side was straight forward and easily reached from above the tire.
 
The driver's is whole 'nother story. the back two are fairly straight forward, like the passenger side. The front two are on the other side of the structural beam and are NOT easy to get too. (Why does my favorite cousin John H live so far away?!)
 
The first problem is, without a pit, you have to get under the generator exhaust, in front of the wheel, and hold a flashlight just to see the bolts.  The bolts are so far above, that I had to have five ratchet driver extensions to my ratchet wrench with a deep wall socket. Then, laying flat on your back, you have to reach that wiggly stack of extensions out and put the socket onto the bolt and nut. Now, you have to turn your ratchet wrench and keep constant pressure on leaning tower while you try to turn them enough to unthread the nut through all the treads on the bolt.
 
I was able to turn one for a while until my arm gave out, then I tried the second. After turning for a while, I think the bolt broke. When I turned and turned, it still did not get any lower on the treads. When I had DW (did I forget to say she needed to have a wrench on the other end of the bolt under the seat -- the air conditioned coach, while I am crawling in very dirty, cramped DIRTY conditions -- but I digress) turn the bolt head, it did not turn the bottom of the bolt.
 
I know, I know; maybe she was on the wrong bolt. But we already had that dance: (That was part of the reason my arm was so tired. We were working on the two bolts at the rear of the pilot seat. To get access to get a socket on the top of the bolt for her to hold, I had to swivel the chair 90 degrees. Did you know that the back of the seat was no longer the back of the seat? Neither did I, but she was holding the bolt at the outside front, thinking I was talking about the repositioned back of the seat. I am down there sweating and grunting and turning the bolt and nut and several washers a few clicks at a time until she finally realized she should be able to feel me turning the nut.)
 
So, I am back at it again today. Where the heck is my pit?
 
Trent

Trent and Jean Eyler
2000  U295  4003  WTFE  ISC  350
Build#5603 MC#17385

Re: Mounting Cockpit Seats on a Floating Floor

Reply #7
Yep! Those two forward most nuts on the drivers chair are not fun. As I did not have a helper, I positioned a pair of vice grips on the bolt head and rotated it so that the handle of the vice grips were up against the chair riser. Then, from underneath with a very long extension bar (maybe two) and a Milwaukee 18V impact driver, I was able to get the nuts off. Back on again is a whole other adventure. One other note, some of the VERY large thick washers stayed in place and some didn't. Guess which ones didn't :facepalm: ! So I ended up removing all of them, wire brushing them clean and their mating surfaces, glued them back in place with 3M 5200. Even so, getting the nut started with a lock washer in place was an exercise in patience that I have no desire to repeat, and never will unless I need to remove the adapter plate (not gonna happen!). It was some help to use the vice grips with some weight on the handle to hold the bolt in place while trying to start the nut.
Don
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Don & Tys
1999 U270 3602 WTFE #5402
Xtreme Stage 1 w/Headlight, Step Conversion, etc.
2009 Honda Fit Sport with Navi
Freedom is NOT "just another word for nothing left to lose"... with apologies to Kris Kristofferson

Re: Mounting Cockpit Seats on a Floating Floor

Reply #8
Don,
 
Speaking of washers, my passenger seat only had two of the split lock washers. Is there any reason not to put four on, on reassembly?
 
Trent
Trent and Jean Eyler
2000  U295  4003  WTFE  ISC  350
Build#5603 MC#17385

Re: Mounting Cockpit Seats on a Floating Floor

Reply #9
No reason not to have lock washers on all fasteners. Maybe the previous installer lost a couple and was too lazy, or in too much of a hurry to get more. My OEM bolts were more than long enough to stack any number of washers on!
Don
The selected media item is not currently available.
Don & Tys
1999 U270 3602 WTFE #5402
Xtreme Stage 1 w/Headlight, Step Conversion, etc.
2009 Honda Fit Sport with Navi
Freedom is NOT "just another word for nothing left to lose"... with apologies to Kris Kristofferson

Re: Mounting Cockpit Seats on a Floating Floor

Reply #10
Okay, one more topic: My DW would really like to remove the factory installed tile in the kitchen and bathroom. Having previously done some of that in our home, she has zero interest in *us* removing the tile. Has anyone tried putting a tile-thick underlayment on the wooden subfloor, and then put new flooring over both surfaces? (Her real interest is in eliminating the grout lines, which are not fun to clean.)

I redid our Foretravel and house with Polyblend Grout Renew, 2 coats.  Easiest application is with an old, small-head toothbrush.  It not only colors the grout, it seals it as well, making it much easier to clean in the future.

Just a budget-friendly option for those who have tile flooring and grout lines.
Learn every day, but especially from the experiences of others. It's cheaper!  - John C. Bogle

2000 U320 36' non-slide / WildEBeest Rescue
2003 U320

Re: Mounting Cockpit Seats on a Floating Floor

Reply #11
Trent, to Michelle's point if the only issue is keeping the grout clean I'd save some coach bucks by cleaning it one more time then seal it. Seems like that would be a less expensive, long term solution....unless you don't like the tile. :+)
1993 U300 40ft GV SE
Build # 4344

Re: Mounting Cockpit Seats on a Floating Floor

Reply #12
The driver's is whole 'nother story. the back two are fairly straight forward, like the passenger side. The front two are on the other side of the structural beam and are NOT easy to get too. (Why does my favorite cousin John H live so far away?!)
 
The first problem is, without a pit, you have to get under the generator exhaust, in front of the wheel, and hold a flashlight just to see the bolts.  The bolts are so far above, that I had to have five ratchet driver extensions to my ratchet wrench with a deep wall socket. Then, laying flat on your back, you have to reach that wiggly stack of extensions out and put the socket onto the bolt and nut. Now, you have to turn your ratchet wrench and keep constant pressure on leaning tower while you try to turn them enough to unthread the nut through all the treads on the bolt.
I installed my "new" seats prior to my recent trip to MOT, where I deposited 11 CBs. Because of the difficulties inherent in the installation of the two forwardmost bolts, I made the trip there and back with only the two rear bolts. They were tight enough to avoid rocking while driving.
 
While the Villa pilot seat physically fits in the original Flexsteel holes, it is too far forward (at least for my belly). The seat is at its furthest back location on the gear-driven tracks, and the steering wheel, just barely fits in the first (least) tilted position of the steering wheel post. It can be relocated towards the rear, just by drilling new holes. However, if I move it far enough back that the existing front holes fit into the rearmost holes in the floor (about ten inches), then I just have to drill two holes. Furthermore, that puts all four bolts behind the beam that was such a problem getting to the original front bolt locations, reachable over the tire.
 
Has anyone already done this?
 
Does anyone see a problem doing this?
 
All advice and comments eagerly sought!
 
Thank you,
 
Trent

Trent and Jean Eyler
2000  U295  4003  WTFE  ISC  350
Build#5603 MC#17385

Re: Mounting Cockpit Seats on a Floating Floor

Reply #13
Changing front seats and  bases have issues:

The floor is wood and foam with a few well-placed welded steel beams, and while newly located drill holes feel secure, they may not be crash worthy when not attached through a steel beam.

New seat may be too far back, too far forward, too low, too high for comfort and fit to pedals and steering wheel.

Seat may not rotate the same without hitting what is installed behind seat or next to seat.

An alternative may be to have a new seat built from same manufacturer for the same chair model, assuring similar fit to original, which is what we did.

Foretravel does not explain any of the issues when we request new seats.  And in the past they only offered Villa brand.

Some on this Forum have made an adapter steel plate that used original floor holes and different holes for seat base.

Re: Mounting Cockpit Seats on a Floating Floor

Reply #14
Or redrill your base plate to match existing mounting holes if possible. Adapter plate sounds like a realitivly easy cheap fix also.
Old Phart Phred, EIEIO
89 GV ored 36' #3405 300 hp cat 3208 ATAAC side radiator, mountain tamer exhaust brake

 

Re: Mounting Cockpit Seats on a Floating Floor

Reply #15
I am in the process of removing my old carpeting and padding to replace with a new material that I intend to float. I discovered that the carpet pad appears to be of two types. In the front, until behind the seats, it is a dense black material. The rest of it appears to be that cheap carpet padding.
 
When the cockpit seats are installed, the carpet and underlayment are compressed significantly. The attached photo shows what is left after I cut away the carpet over the seat base. It had been the Flexsteel chair with power footrest. The base plate is approximately ten inches square, with large bolts (3/8" ?) in an eight inch square. I discovered that there were another set of holes (about 1/4"), going all the way through the floor, about an inch wider than the larger bolts. There had never been an attempt to seal the extra four holes; they were hidden on the top by the nap of the carpeting.
 
Anybody have any idea what those other four holes were for? Why were they not sealed (there was no sign of any water penetration inside the coach from them)?
 
I am replacing the Flexsteel with Villa seats (Thank you Bill!). The holes are different, so I will have several new holes, in addition to the four smaller holes. My plan is to glue dowels into those holes and caulk the bottom locations. Is that good enough, or should I do more to seal the unused holes?
 
Finally, the subject of this message:
 
If I mount the new seats over the new flooring, they are obviously not floating anywhere near those eight bolts. Is that a problem? I have not yet made the final decision on flooring, either vinyl or a laminate product, with "click-lock" edging. I wanted to see how smooth the final subfloor surface is.
 
Okay, one more topic: My DW would really like to remove the factory installed tile in the kitchen and bathroom. Having previously done some of that in our home, she has zero interest in *us* removing the tile. Has anyone tried putting a tile-thick underlayment on the wooden subfloor, and then put new flooring over both surfaces? (Her real interest is in eliminating the grout lines, which are not fun to clean.) The vinyl product we are considering comes in six foot lengths. The salesman promised that it could be installed directly over a tiled floor, without having to  fill in the grout lines.
 
Sorry for the length; I blame it on my typing ability. It's not hunt-and-peck, but it is not fast enough to prevent my mind from wandering while inputting.
 
Thanks for any and all feedback,
 
Trent



Trent in my experience with vinyl, for the grout lines to not show through the vinyl you would have to float the tile area smooth.
if you don't the lines won't show at first but after about a year too wear they will start showing through
Chris
1999 U 320 DGFE
Build Number 5523
Chris & Elka Lang
In the field, Lonoke AR