Thread: Protecting Inside the Chassis Rails

Originally Posted by alexturner

Hi all,

Just about to embark on cleaning my chassis and ridding the outside of some rust it's gathered over the years (and giving the welder a good workout).

I've made some 'incisions' into the chassis and whilst the inside is ok, there is some rust forming and I wanted to pick your brains for the best way to handle it and stop it from spreading.

I'm planning on giving everything a good squirt with low strength phosphoric acid (rust converter) but I'm not sure what do to next. What's the best way to protect the inside of the rails? I've heard fishoil and ATF Fluid but they sound messy. Is there a clean, easy product designed for this?

AT

use waxol hose pipe pin holes all spray with good pressure first send a rotary wire head and then high pressure air hose jim

I wonder if you could use expander foam in the chassis??

It would definitely seal the inside well.

Would it cause any problems though? forget about ever looking inside and running cables in there.

WHY... don't JLR just fit (and charge for!) a galvanised chassis from the get go!!!