Newbee's 52 Mainline Ute

[zuffen]

You could make a shallow swimming pool out of building fabric/plastic to fill with Citric acid and immerse the whole chassis in it.

I've seen what citric can do quite quickly.

It's pretty cheap and knocking up a surround to make the pool wouldn't be hard for a guy who can build a car!

I've always used POR15 but would try KBS as it's Aussie.

[Newbee]

Yes Rod I have considered Citric acid, I wonder about the issue of hydrogen embrittlement on the chassis though, or is this only
an issue with high carbon steels. I have killed a few springs using Citric previously but it certainly does a good job on other steel.

It’s a question others may be able to answer, (maybe a metallurgist in the group), I’ll also check with the SA TAC.

Regards Newbee

[enjenjo]

Check this video for a home made product that I have used and recommend

https://www.youtube.com/watch?v=fVYZmeReKKY.

[zuffen]

Interesting video.

There's a similar discussion going on the HAMB at the moment.

I've used Citric before and OSPHO and both did an alright job but the steel wasn't valuable or a spring.

[Newbee]

Thanks enjenjo interesting video, it makes sense balancing out the acidity (about pH 1) of citric acid with caustic but I
didn’t think it would still work as well as it does.

I have a section of the rear chassis from another Ute from the same farm (to replace a bad section on mine), it is in
the same condition, I will make up some of that solution and try it out.

Did you figure out the last piece of the puzzle regarding the rust inhibitor ?

Regards Newbee

[enjenjo]

So far I have nothing new. At this point this is the best I have found https://www.amazon.com/Gibbs-Brand-Lubr ... B00AFJXIJQ