SLROC Forum

Hi

As you might have seen in another post. My disco 2 has a bit of chassis rot.
I've waxoyled it every year since we got it six years ago.
How do we stop a chassis rotting from the inside out.
I've heard waxoyl can trap moisture letting it carry on wrecking your chassis.
I suppose the only way to ensure it doesn't happen is ti fit a galvanised chassis.
Any other ideas, i also have an "04" plate disco 2, i'd like to stop it before it go's the same way.

Geoff

Geoff.

Years ago I had a Fiat 131 Mirifiori Sport that I rebuilt the floor and sills on (the car was 4 years old at the time), I filled all the cavities with expandable foam ( which cured faster if moisture was present) 8 years later and the sills and chassis sections were perfect and I mean perfect.
It has been in the back of my mind to do my series chassis the same way once all the welding is done, I would say that if water/moisture cant get in then rust cant start.
Just a thought.
Drew.

drew

what was the name of the foam you used as i think some of us may want to try it,anything to stop the tin worm

dave

i waxoiled my 300tdi disco and it rotted big time afterwards i think unless done from new waxoil may be a bad idea, i reckoned it trapped the rot inside mine, i haven't done my td5 and its fine, i have seen anotherdisco2 this week that has been waxoiled inside and stonechipped outside , its rotten big time

a friend uses 3m cavity wax which is 3 times the price of waxoil and is reputed to be much better

Geoff.

Years ago I had a Fiat 131 Mirifiori Sport that I rebuilt the floor and sills on (the car was 4 years old at the time), I filled all the cavities with expandable foam ( which cured faster if moisture was present) 8 years later and the sills and chassis sections were perfect and I mean perfect.
It has been in the back of my mind to do my series chassis the same way once all the welding is done, I would say that if water/moisture cant get in then rust cant start.
Just a thought.
Drew.

But if we go wading the car will float

I did up the Fiat in the early 80s so cant remember what make the foam was, I can say that it was from the building trade and dried looking like a plastic aero bar (obviously not brown) and was waterproof when cured but if any moisture was present then it speeded up the curing time, Im sure someone on here will be able to identify it.
Drew.

So land rovers dont float then 

it could have been hilti there foam is good but looks like puff candy

So land rovers dont float then 

Did you know a 24 hour survey was carried out to find out how water proof land rovers are.
A cat was put in a jap 4x4 and one in a 110.
24 hours later the cat had suffocated in the jap 4x4 and the other had escaped from the landrover.

Quote from: ffourphantomfixer on May 23, 2011, 06:11:31 PM

So land rovers dont float then 

Did you know a 24 hour survey was carried out to find out how water proof land rovers are.
A cat was put in a jap 4x4 and one in a 110.
24 hours later the cat had suffocated in the jap 4x4 and the other had escaped from the landrover.

Sure it didn't nick it? 

24 hours later the cat had suffocated in the jap 4x4 and the other had escaped from the landrover.

Are you sure it didn't commit suicide?

Watch what you're doing with expandable foam..  Heard about someone who sprayed in up the windscreen pillars of a Mk1 Escort, and it expanded and split the frame ruining the bodyshell.  I guess a Landrover chassis may be a tad stronger than a 40 year-old car, but just thought I'd share!!!

Anyhoos, will the foam not hold any water in the chassis, and not let it drain out?

Tom.

I've known a couple of guys to fill voids on there boats with expanding foam to  act as floatation in case of an emergency. But what really  happens is they hold the water and weigh a ton.
I'm not sure if this builders foam is the same as what your talking about I'd be weary of this.

If it is a closed cell foam then you will be absolutely fine, that keeps water out and makes boats float. Open cell foam is what you might find next to your bath, its called a sponge! I imagine we all get the picture of what that will do to a chassis!

As a friend has told me, they build insulated artic trailers with some kind of foam sandwiched between aluminium and ply for the sides of the trailers, you can have -25 in the trailer and on a warm day 25+ on the outside and there is no moisture retension in the side wall. Ill phone Grey Adams in Dunfermline and ask some questions about the suitability of this foam and what its called.
Drew.