Jump to content


Photo

Floorpan cut and replacement help


  • Please log in to reply
13 replies to this topic

#1 Gatti

Gatti

    Forum Fan

  • Members
  • PipPipPipPip
  • 338 posts
  • Name:Matt
  • Location:Sydney
  • Car:LJ 2 Door
  • Joined: 16-September 16

Posted 10 December 2017 - 06:23 PM

Hi,

 

I need to replace the drivers side floorpan in my LC

 

WQXRbLh.jpg

 

I have bought a replacement from Rare Spares, but as I haven't done this before I wanted to make sure I'm on the right track

 

I was thinking I'll sit the floorpan in the car so it sits on these 'humps' on either side of the rear of the replacement pan properly then mark out a cut out line all the way around the floorpan. Then I'll make another cut out line about an inch inside that line then cut that out?

 

TKMzA0J.jpg

 

That will leave me a decent margin for error.

 

Then I can place the replacement back in and hopefully it sits closer on the rail as it currently sits too high and leaves a gap.

 

PatA836.jpg

 

I could then trim a bit more out and get it to sit tighter.

 

I'm a novice welder so I will most likely leave an overlap instead of trying to butt up the edges.

 

Am I on the right path with how to do it?

 

 

 



#2 rodomo

rodomo

    To advertise here, call 13TORANA

  • Members
  • PipPipPipPipPipPipPip
  • 17,997 posts
  • Name:R - O - B Dammit!
  • Location:Way out west of Melbourne Awstraylya
  • Joined: 10-December 05

Posted 10 December 2017 - 08:00 PM

I have to change one shortly. Yep, bit by bit is how I'll be doing it. And I'm with you with the lap rather than a butt weld.



#3 Gatti

Gatti

    Forum Fan

  • Members
  • PipPipPipPip
  • 338 posts
  • Name:Matt
  • Location:Sydney
  • Car:LJ 2 Door
  • Joined: 16-September 16

Posted 11 December 2017 - 10:54 AM

I have to change one shortly. Yep, bit by bit is how I'll be doing it. And I'm with you with the lap rather than a butt weld.

 

Yeah with my welding skill I think an overlap is the safest option.  :blink:



#4 madtoranajzedded

madtoranajzedded

    Sir ask alot

  • Members
  • PipPipPipPipPipPip
  • 2,891 posts
  • Name:Maz
  • Location:Southern Tasmania
  • Car:72 LJ SL SEDAN.
  • Joined: 30-September 13

Posted 11 December 2017 - 11:29 AM

Do some prac dude.you can do it.im a novice
also but it dont take that long to workout
Settings spot time and angle etc.patience is
the key.i done 2 yrs ago but never welded .i
Just got rid of all the floor panel off rail
so it sat down on rail .i put some weight in
there then used tape to outline it as its
easier to see tape line than marker..

It will look heeeaaps neater if you butt it
and i think most on here will agree.

Cheers maz

#5 Gatti

Gatti

    Forum Fan

  • Members
  • PipPipPipPip
  • 338 posts
  • Name:Matt
  • Location:Sydney
  • Car:LJ 2 Door
  • Joined: 16-September 16

Posted 11 December 2017 - 12:38 PM

Do some prac dude.you can do it.im a novice
also but it dont take that long to workout
Settings spot time and angle etc.patience is
the key.i done 2 yrs ago but never welded .i
Just got rid of all the floor panel off rail
so it sat down on rail .i put some weight in
there then used tape to outline it as its
easier to see tape line than marker..

It will look heeeaaps neater if you butt it
and i think most on here will agree.

Cheers maz

Thanks mate. 

 

I plan on using the tin that I cut out for the new floorpan to practice welding with before I take to the car with the MIG



#6 Toranamat69

Toranamat69

    Forum R&D Officer

  • Members
  • PipPipPipPipPip
  • 2,117 posts
  • Location:Brisbane
  • Joined: 07-November 05

Posted 11 December 2017 - 12:57 PM

If you are going to do the overlap method, I'd be using a air punch and flange tool otherwise you will have 1 thickness of material trouble to deal with somehow.

#7 limo

limo

    Lotsa Posts!

  • Members
  • PipPipPipPipPipPip
  • 2,672 posts
  • Location:Adelaide
  • Car:most Torana models, Jag, Vauxhall, Triton, Staesman
  • Joined: 24-May 06

Posted 11 December 2017 - 04:55 PM

I have used the replacements from rares a few times and I have found they are not that easy a fit.

always seem to need a bit of massaging with hammer to get them to sit right and line up neatly.

I butt weld them.

they seem to be harder metal than the original steel

much better when I cut piece from donor car, slots straight in and welds better.

I find patience and lots of small welds then filling gaps later works for me.

self taught welder so not a tradesman

 



#8 Seymour Beer 1

Seymour Beer 1

    Forum Participant

  • Members
  • PipPip
  • 39 posts
  • Location:Melbourne
  • Car:LJ
  • Joined: 11-September 11

Posted 11 December 2017 - 06:45 PM

I am also looking some LJ front floor pans to replaced. Is the floor pan the same for automatic and manual transmissions? They were different in the EHs.



#9 S pack

S pack

    Scrivet Counter

  • Members
  • PipPipPipPipPipPipPip
  • 15,538 posts
  • Name:Dave
  • Location:Luggage Point
  • Car:73 LJ
  • Joined: 25-January 10

Posted 12 December 2017 - 12:06 AM

I am also looking some LJ front floor pans to replaced. Is the floor pan the same for automatic and manual transmissions? They were different in the EHs.

Yep, same.



#10 Seymour Beer 1

Seymour Beer 1

    Forum Participant

  • Members
  • PipPip
  • 39 posts
  • Location:Melbourne
  • Car:LJ
  • Joined: 11-September 11

Posted 12 December 2017 - 04:28 PM

Thanks Dave



#11 fx48_eh64

fx48_eh64

    Forum Member

  • Members
  • PipPipPip
  • 199 posts
  • Name:MrFX
  • Location:Brisbane
  • Car:Fx
  • Joined: 05-May 17

Posted 12 December 2017 - 05:10 PM

Ive heard that some authorities and engineers are no longer accepting overlapped floor pans, insist on buttweld.

 

cant remember when and where etc  but just a heads up to do your homework first



#12 I'm a Red Motor fiend

I'm a Red Motor fiend

    Forum Fixture

  • Members
  • PipPipPipPipPip
  • 758 posts
  • Name:Adam
  • Location:Nairne SA
  • Car:LJ 4 door, LC GTR
  • Joined: 04-January 16
Garage View Garage

Posted 14 December 2017 - 06:58 AM

Don't overlap them, butt them. I am pretty much a novice when it comes to welding but once u have your welder set right it is not hard. Take your time when cutting it to fit. Drill some holes and screw it to the rail to hold it firm then once you have stitched the outer remove the screws and plug weld it to the rails. Limo is right, I had to take to my Rares pans with a hammer to make them fit. There is only one way to learn, you will be able to do it.
Edit: forgot to add if you happen to remove too much metal, just Frankenstein a piece back in. Once you grind your welds and seam seal it makes no difference. It's only a floor pan.

Edited by I'm a Red Motor fiend, 14 December 2017 - 07:07 AM.


#13 Gatti

Gatti

    Forum Fan

  • Members
  • PipPipPipPip
  • 338 posts
  • Name:Matt
  • Location:Sydney
  • Car:LJ 2 Door
  • Joined: 16-September 16

Posted 14 December 2017 - 11:54 AM

Thanks guys. 

 

I've bought a compressor and a MIG welder so I'll practice with the MIG on the metal that I cut out then once confident I'll butt weld it in as suggested.



#14 grumpy xu1

grumpy xu1

    Lotsa Posts!

  • Members
  • PipPipPipPipPipPip
  • 2,809 posts
  • Name:Gary
  • Location:Queensland
  • Car:lj xu1
  • Joined: 01-February 10

Posted 14 December 2017 - 05:42 PM

Ive heard that some authorities and engineers are no longer accepting overlapped floor pans, insist on buttweld.
 
cant remember when and where etc  but just a heads up to do your homework first


That's because an overlap holds the moisture and it will obviously then rust out around the join next, a butt weld is the only way to go, follow all the other instructions above & "take" your time as mentioned, that will make the best job of anything !




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users