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Old 02-24-2019, 12:16 PM   #1
Mini-Skoolie
 
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seat tracks!!!

these are the bane of my existence!!! i tried everything to avoid doing nut destruction on underneath the bus, but it seems to be the only option ...
tried drilling them out with a cobalt bit ... took three heads off and the bit was toast.
i tried oven cleaner on the bolts and nuts on the bottom, but the black gunk they used to seal it didn't come off. so, i cant use deep well sockets to drill them out with the impact wrench on top. plus the button head cap screws are rusted out.
i was going to cut the track lengthwise with a diamond cutting wheel but that seems like it'll take longer than the nut destruction.
only thing that seems to work is cutting the nuts as vertically as possible, then getting a crow-bar under the track (upward pressure) and impact drilling the evil thing until the nut pieces have fallen off and screw pops out.
i'm in a frozen tundra and don't want to stay outside ... if anyone has any easier, faster, warmer suggestion please get me out of the blizzard!!!
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Old 02-24-2019, 01:25 PM   #2
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It gets easier after that's done.
Do it easier, pay someone else do it
Do it faster, see above
Warmer, move it to a warmer location to pay someone to quickly get the job done. HTH
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Old 02-24-2019, 08:52 PM   #3
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In theory a sawzall with a metal cutting blade run between the floor and rail to cut the bots should work. I have a battery one that's just not powerful enough to get through much, but if I can find an electric to borrow, or a cheap one to buy, I'll try that next. I got through 6 bolts before the sawzall started to get pretty hot and I stopped.
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Old 02-24-2019, 10:33 PM   #4
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Could you get a nut splitter on the nuts on the bottom? Or is there room for an angle grinder with cut off wheel to cut off the bolts?

Ted
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Old 02-25-2019, 06:04 AM   #5
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When I get frustrated i just go HAM with the angle grinder. I've not had to deal with WC trcks. All 3 WC buses I've had just have a steel plate with slots bolted to the floor where a seat would be.
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Old 02-25-2019, 11:44 AM   #6
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yes!
so this is the plan ... have the bus to escape winters. i lived 10 years outside of god-forsaken mn, but now realized i should have left those winters long ago.

well, if you've never dealt with seat tracks you're lucky. i didn't know what i was getting into.
and generally thanks for the replies ...
so, i just bought a dremel to get into the hard to reach places that my angle grinder can't get at. but now i'm thinking ...
I might be able to use a dremel attachment to grind the heads off of the button-head cap screws from above and pound them through with a punch.
anybody ever try this???
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Old 02-26-2019, 02:36 AM   #7
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Quote:
Originally Posted by mnexpress2 View Post
so, i just bought a dremel to get into the hard to reach places that my angle grinder can't get at. but now i'm thinking ...
I might be able to use a dremel attachment to grind the heads off of the button-head cap screws from above and pound them through with a punch.
anybody ever try this???

Try it!


Angle grinder to grind ...
or
cut-off wheel on angle grinder to cut off the heads
or
Dremel to grind or cut (but this may be slow)
or
air chisel (or cold chisel and hammer) to remove the heads
or
sawsall under the rails to cut the bolts (may be easier if the wood floor is removed from around the bolts first)



... then punch them out. I had to do this on a few of the more stubborn bolts holding my seats in place.



Lots of options!
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Old 02-26-2019, 08:48 AM   #8
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thanks ...
but any attack on the heads of the bolts is impossible ... they're button head capscrews that are counter-sunk into the L-tracks which are in-laid to the plywood sub-floor.
the only thing that has consistently worked for me has been angle grinding the nut underneath. but nut destruction is long!!! and cold in the northern tundra. i can't work on it for a few days so i'm just theorizing and seeing if anyone else has tried something that worked well.

now, i'm going to try the dremel with a aluminum oxide bit and then maybe a carbide burr on the heads of the bolts. never know.
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Old 02-26-2019, 09:25 AM   #9
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It's taking time, but I'm prying up the edge of the seat rail and running a sawzall to cut the bolt. I'm using a 9" blade with 14 teeth-per-inch, and if I get it in there properly, it cuts through the bolt relatively quickly. It's not too quick, though, as at an hour or two a night, it's probably going to take me a couple weeks to get through them all (4 rails on each side of my 6-window bus).

I did remove all the plywood first, a necessity. It's slow going, but sure beats lying on my back with an angle grinder over my head, at least in my opinion.
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Old 02-26-2019, 09:26 AM   #10
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IDK I'd think a dremel would be most expensive and time consuming way to do it.
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