Rust removal and prevention

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

Submariner

Quote from: CaminoRacer on June 07, 2021, 09:25:55 PM
In my experience, exhaust paint burns off quickly unless it's a few feet past the manifolds/headers, or probably the cats in your case.

I've heard that 2k F paint works well.  Or well enough.
2010 G-550  //  2019 GLS-550

Submariner

Went back to the bolts today.  I gave them another WD40 soaking but they won't budge.  Like I said the clearances are so damn dight that getting a longer wrench in there is going to be close to impossible.
2010 G-550  //  2019 GLS-550

CaminoRacer

Are they stainless steel bolts/nuts? Those like to seize, especially with the heat from the exhaust and exposed to the elements under the car.
2020 BMW 330i, 1969 El Camino, 2017 Bolt EV

Submariner

Quote from: CaminoRacer on June 08, 2021, 09:58:42 AM
Are they stainless steel bolts/nuts? Those like to seize, especially with the heat from the exhaust and exposed to the elements under the car.

Stainless orngalvanized as they are very clean, unlike the brackets they're holding.
2010 G-550  //  2019 GLS-550

Submariner

#34
So i'll get a spanner around the nut.  The fit is pretty tight, and after enough pulling, it feels as if the nut is loosening but its actually slipping around the nut.  I can't really get the nuts loose on the side of the bracket that is connected to the running board, but my guess is that they are just as seized as the other ones.  Copious amounts of WD40 "specialist penetrant" hasn't done much to help.  Im encountering the same problem with the bumper.
2010 G-550  //  2019 GLS-550

CaminoRacer

Do you have 6 sided closed wrenches or 12 sided? 6 sided should help prevent rounding off the bolt
2020 BMW 330i, 1969 El Camino, 2017 Bolt EV

Submariner

Six sided.  I'm going to buy a 24" breaker bar, but that still doesn't help me with the bolts on the running board because there is no clearance for the bar.  I need a 24" spanner which I can't seem to find lol.
2010 G-550  //  2019 GLS-550

Submariner

Managed to pump a lot of WD40 corrosion inhibitor up into the body cavities while I was under there.  Also took the wire brush to the exhaust...it's all surface rust, but its still going to be hard to get a lot of the rust off due to the angles and tight clearances I have to deal with.
2010 G-550  //  2019 GLS-550

JWC

When I was rebuilding VW Beetles, I had a four-foot steel pipe that slipped over my breaker bar. That and lightly hammering the head of the rusted bolt took'em out every time.


Submariner

Quote from: JWC on June 09, 2021, 11:29:05 AM
When I was rebuilding VW Beetles, I had a four-foot steel pipe that slipped over my breaker bar. That and lightly hammering the head of the rusted bolt took'em out every time.



I tried hammering to no avail.  The pipe idea isn't bad but I need something for tight clearances so I'm not sure a pipe would work.
2010 G-550  //  2019 GLS-550

Laconian

Quote from: Submariner on June 09, 2021, 01:47:22 PM
I tried hammering to no avail.  The pipe idea isn't bad but I need something for tight clearances so I'm not sure a pipe would work.

How about an impact driver?
Kia EV6 GT-Line / MX-5 RF 6MT

Submariner

Quote from: Laconian on June 09, 2021, 02:08:55 PM
How about an impact driver?

That might work for the bolts I can get with a breaker bar, but some bolts can only be accessed with a spanner.
2010 G-550  //  2019 GLS-550

JWC

Quote from: Submariner on June 09, 2021, 01:47:22 PM
I tried hammering to no avail.  The pipe idea isn't bad but I need something for tight clearances so I'm not sure a pipe would work.

The mechanics I worked with from "Yankeeland" automatically went to the torch. Heat will help. Hammering was really just tapping it as you put pressure on it. My impact driver twisted many a fender bolt head off on a rusty VW before I learned patience----and using a hammer to tap the bolt as you try to turn the bolt.

Submariner

I'd love a torch but the chances of me burning the house down are worryingly high.

Hopefully I'll have better luck with the breaker bar.
2010 G-550  //  2019 GLS-550

CaminoRacer

2020 BMW 330i, 1969 El Camino, 2017 Bolt EV

shp4man

Spanner is British, like tyre and petrol. Sub, are you British?

Submariner

Does watching lots of top gear count?
2010 G-550  //  2019 GLS-550

shp4man


Submariner

I put the pipe into a 12" wrench so I could apply more t0rks to the bolt.  I pull a lot, I get a large snapping sound, and the bolt still hasn't come loose.  It's as if the bolts are made of soft metal and the wrench bends around it.
2010 G-550  //  2019 GLS-550

Submariner

I just spent actual dollars on pipe that has proven to be useless.  Now I have 24" of useless pipe laying around.
2010 G-550  //  2019 GLS-550

Laconian

Kia EV6 GT-Line / MX-5 RF 6MT

Submariner

No but I am about to try semtex.
2010 G-550  //  2019 GLS-550

shp4man

Sounds like it's time for some Alabama hot wrench magic!

That's a cutting torch for you yankees.  ;)

Submariner

I think I managed to get the bolt to turn, but just barely.  I bend the wrench ever so slightly (at the neck).  Genuinely baffled.
2010 G-550  //  2019 GLS-550

Submariner

2010 G-550  //  2019 GLS-550

Submariner

Interestingly enough, they were completely free of corrosion.
2010 G-550  //  2019 GLS-550

Soup DeVille

This is entertaining as all hell.

"Every four hour job is one bolt away from being a three day ordeal."
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

I'm getting so goddamn good at this I'm thinking about opening my own shop.
2010 G-550  //  2019 GLS-550

Submariner

Any tips on polishing the metal here?

I used some "#0, extra fine" steel wool and metal polish.  It removed some superficial haze (which soap and scrubbing did not) but the metal is still visibly scratched and a bit dull.  Unfortunately, I've been told that it really isn't possible to remove the rubber so I can't take a DA polisher to the metal.



2010 G-550  //  2019 GLS-550

Submariner

2010 G-550  //  2019 GLS-550