Replacing front floor; accessing master cylinder after?

[FlyingDutchman]

Howdy!

I need to weld in a new front floor on my D24 sedan. I'm not a huge fan of the hole in the floor to access the master cylinder for adding fluid. Has anyone relocated this or have any tricks that will allow me to have a solid, access hole free front floor but still have access to the master cylinder fill?

Thanks guys!

-JVP

[PatS....]

If the M/C is still under the floor, access without the access hole would certainly BE a trick!!!

[FlyingDutchman]

Yeah, just didn't know if any old bucks new some slick tricks

[Niel Hoback]

The plug in the back end of the MC has the same threads as the filler cap. Use the plug as a cap and run a line to a remote reservoir on the firewall. I would post a picture but I'm too dang lazy.

[PatS....]

You would still need occasional access to the M/C with a remote fill from my experience.

[bamfordsgarage]

If you add a remote reservoir as Neil suggests, an occasional-access hole is still needed in the floor pan. This could could be semi-permanently sealed by use of weatherstrip between the pan and access cover, and a number of screws around the perimeter to keep it weather-tight.

[claybill]

easier to make the access hole secure than to try other solutions.

[Niel Hoback]

Just need to know, what else is accessible thru the hole in the floor besides the filler cap? Its been three years now and there's been no need for a hole here. The line to the remote reservoir can be connected/disconnected from underneath with a 3/8 end wrench if the cylinder needs replacement.

[yourpc48]

I am guessing that you are just trying to avoid the hole for the master but still have the floor pan that you have to seal and bolt down like the original.

If that is the case then anything you would normally use that little hole for could be done from below or by taking out the floor pan. Go ahead and convert it to a remote reservoir if you want to avoid messing with the master from the fill hole.

I am looking into doing the same or even change to a dual master with remote reservoir. I am looking into off the shelf masters that will do the job. I found a VW master that may work and will be looking into that a little closer. My idea is to leave the original in place and then pull the guts out. I then would put a bracket on the back of the original mount and then bolt the new one behind the old one extending the rod through the orignal master to the new one.

I have seen aftermarket masters that would do the job the same way but I am trying to make everything I upgrade or change on the car be something I can walk into the parts store and get replacements for without a special order.

[littlemo]

Make sure you take into consideration the "height" of your new MC, or it just might stick above your floor line!! Ask me how I know !! Cass, alias littlemo ...

[mrwrstory]

I agree with all the previous comments. Here's how I was able to get everything under the stock floor.

If I had to do it over, I would make a larger access cover in order to service the M/C without removing the floor.

^

[flatheadtim]

Very nice job!!

[yourpc48]

I agree with all the previous comments. Here's how I was able to get everything under the stock floor.

If I had to do it over, I would make a larger access cover in order to service the M/C without removing the floor.

Nice install! Is that one of the aftermarket units. The one that I was looking at for the VW looks similar but the fittings that go out of it to the resivior are lower profile than the unit you have pictured there.

[mrwrstory]

Nice install! Is that one of the aftermarket units. The one that I was looking at for the VW looks similar but the fittings that go out of it to the resivior are lower profile than the unit you have pictured there.

The M/C is a Corvette unit that normally uses a plastic reservoir that plugs into the top. The metal plugs you see may be specialty items. I don't know. If you can do the same thing with a stock VW setup, I think that would be better as far as long term servicability is concerned. However, be sure that the VW unit has a capacity, bore dia. and stroke, that adequately addresses your needs.