Rust removal and prevention

Started by Submariner, June 01, 2021, 04:12:42 PM

AutobahnSHO

Quote from: Submariner on June 11, 2021, 02:37:59 PM
Now I have 24" of useless pipe laying around.

I bought a pipe to use as a cheater a decade ago, and still need it every once in a while.

It didn't fit on my bigger socket bar, so I got a bigger pipe. Use it every once in a while too!
Will

Submariner

The pipe actually came in hand for the ratchet.  Totally useless for the spanner though.
2010 G-550  //  2019 GLS-550

CaminoRacer

Did the bolts have crimp nuts? I hate those.

Could just have been seized stainless bolts too. Put antiseize on them when reassembling
2020 BMW 330i, 1969 El Camino, 2017 Bolt EV

Submariner

Quote from: CaminoRacer on June 13, 2021, 07:28:52 PM
Did the bolts have crimp nuts? I hate those.

Could just have been seized stainless bolts too. Put antiseize on them when reassembling

I have white lithium grease.  Will that work?
2010 G-550  //  2019 GLS-550

Submariner

Come to think of it, would Red n' Tacky grease be a good rust preventative?  Obviously I can't spray it but it has a very high drip point and has (in theory) great rust preventative properties.
2010 G-550  //  2019 GLS-550

r0tor

Quote from: JWC on June 07, 2021, 08:18:58 AM
I was thinking the same. That looks normal for around here.

I wish my Jeep looked that good
2011 Jeep Grand Cherokee No Speed -- 2004 Mazda RX8 6 speed -- 2018 Alfa Romeo Giulia All Speed

Submariner

Got one of the running boards off:



Three of the bolts sheared right off.  Badly corroded.  I'll get replacements tomorrow.  I sanded down the underside of the board with paper and my wire wheels, knocked off any visible rust and painted with some light-rust primer + a few coats of satin black enamel.  I'll sand it tomorrow and apply a few more coats.



The brackets are sitting in a rust remover bath.  Once done, I'll give them the same treatment as above.



The holes for the bolts.  I blasted all of them with WD40 corrosion inhibitor to ensure all the metal inside of these cavities is coated.

2010 G-550  //  2019 GLS-550

Submariner



These are the end caps.  Two coats of plastic primer then sanded with 400 grit and followed up with a coat of gloss black.  I'm going to sand them again, put two more coats of gloss black and clear coat it.  Overall, they look much better than before.
2010 G-550  //  2019 GLS-550

Submariner

Any idea how I should deal with the pitting?  I've used the wire brush and cup extensively.  I think I am going to soak it in rust remover.  Should I use a filling primer before I paint?  Does it work as well at corrosion protection as regular primer?

2010 G-550  //  2019 GLS-550

Submariner

#69
How should I remove bolts from screws that turn, but do not actually come off?  The bolts and screws are badly rusted.  The nuts turn pretty freely (after liberal application of WD40) but they just turn without actually coming off.  I tried hitting them with a hammer but they won't break. 

BTW the bolts are not moving, just the nuts.
2010 G-550  //  2019 GLS-550


Submariner

Ended up getting them off by sliding them down and out of the channel they were in.  Completely rusted/stripped.  I'll replace with galvanized hardware and pack with hot n' tacky grease.
2010 G-550  //  2019 GLS-550

JWC

This thread really makes me miss working on, and bringing back to life, old VWs. 

Submariner

Ha!  The funny thing is what I am doing is absolutely amateur work by comparison.  It's very frustrating at times (especially because I am really learning this as I go along) but also rewarding too.
2010 G-550  //  2019 GLS-550

Submariner

Made the mistake of using the wire wheel on the second running board.  Despite finishing it with 320 then 400 grit paper and inspecting the surface before painting, the paint now looks brushed on rather than sprayed.  Not a big deal as it is the underside of the board.  At least now I know for next time.
2010 G-550  //  2019 GLS-550

Submariner

So the running boards are (almost) done.  I've got to do a bit of touch up work here and there but they're 90% complete.  I'm going to fill the cavities with WD40 corrosion inhibitor and pack with Lucas Red n' Tacky grease.  I purchased all new galvanized hardware and that too is going to be slathered with red n' tacky before assembly. 

The stainless steel came out looking good - most of the tarnish is gone and it looks brighter than before but I was unable to take a DA polisher to it so deeper scratches still remain. 

The plastic end caps look good - I sanded with 180, 320 then 400 grit paper, applied two coats of primer and three coats of gloss black.  They look almost brand new.  I should have used filler primer as some areas were very hard to sand and were hard to smooth properly with the 400 grit paper.  Still, I'm pleased with the result.

I'm going to pack the mount points on the truck with red n tacky then hopefully have them mounted this weekend.
2010 G-550  //  2019 GLS-550

Submariner

Any suggestions to remove paint in impossible to reach areas?  I've been at this for what seems to be hours with sand paper and drill bit attachments and still can't remove the paint in the corners:





2010 G-550  //  2019 GLS-550

Soup DeVille

Its clearly stuck on good: leave it.
Maybe we need to start off small. I mean, they don't let you fuck the glumpers at Glumpees without a level 4 FuckPass, do they?

1975 Honda CB750, 1986 Rebel Rascal (sailing dinghy), 2015 Mini Cooper, 2020 Winnebago 31H (E450), 2021 Toyota 4Runner, 2022 Lincoln Aviator

Submariner

The thing is, much of the paint came off with corrosion underneath.  The problem here is that the angles + clearance makes it hard to remove.  The flat + open surfaces were very easy to clean up.
2010 G-550  //  2019 GLS-550

shp4man

Paint remover or sandblasting, but it may be a bit obsessive. Why do you want perfection?

Submariner

Not perfection...I just don't want to paint over existing/bubbling rust. 
2010 G-550  //  2019 GLS-550

Soup DeVille

Quote from: Submariner on July 11, 2021, 08:10:57 PM
The thing is, much of the paint came off with corrosion underneath.  The problem here is that the angles + clearance makes it hard to remove.  The flat + open surfaces were very easy to clean up.

Sandblaster. Use walnut shells.
Maybe we need to start off small. I mean, they don't let you fuck the glumpers at Glumpees without a level 4 FuckPass, do they?

1975 Honda CB750, 1986 Rebel Rascal (sailing dinghy), 2015 Mini Cooper, 2020 Winnebago 31H (E450), 2021 Toyota 4Runner, 2022 Lincoln Aviator

Submariner

2010 G-550  //  2019 GLS-550

Submariner

#83
I ended up painting them.  The pitting is evident, but at least the rust is removed and they're coated with a few fresh coats of rustoleum.



2010 G-550  //  2019 GLS-550

JWC

I've seen new cars come off the trucks with less pitting.

I wouldn't fret too much about it. I've noticed that on those "resurrection" shows like on Motor Trend TV, there are cars "restomodded" that are not perfect. The newer cameras are adversely showing off sanding marks under that custom paint, pitting on frame work, etc.


Submariner

The pitting isn't too bad, especially because these parts will be under the car and out of sight.  As long as the metal is protected, I am happy.
2010 G-550  //  2019 GLS-550

CALL_911

So what kind of truck is this?


2004 S2000
2016 340xi

MrH

The amount of effort you're going to on this is wild.  I can't say I understand?  Must be the best truck ever :lol:
2023 Ford Lightning Lariat ER
2019 Acura RDX SH-AWD
2023 BRZ Limited

Previous: '02 Mazda Protege5, '08 Mazda Miata, '05 Toyota Tacoma, '09 Honda Element, '13 Subaru BRZ, '14 Hyundai Genesis R-Spec 5.0, '15 Toyota 4Runner SR5, '18 Honda Accord EX-L 2.0t, '01 Honda S2000, '20 Subaru Outback XT, '23 Chevy Bolt EUV

FoMoJo

Quote from: CALL_911 on July 13, 2021, 07:15:45 PM
So what kind of truck is this?
With the coils on the back...



I guessed a RAM.

Don't really know though.
"The only reason for time is so that everything doesn't happen at once." ~ Albert Einstein
"As the saying goes, when you mix science and politics, you get politics."

Submariner

Finally got the boards back on.  The brackets came out nicely.  I bought new galvanized hardware and coated it in grease before reapplication. 

One question; 11 of the 12 bolts went in and tightened properly.  The 12th bolt just spins in the hole.  They are 3/8" bolts.  Any idea why/what I can do?
2010 G-550  //  2019 GLS-550