Author Topic: Rust removal and prevention  (Read 468 times)

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Offline Submariner

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Re: Rust removal and prevention
« Reply #30 on: June 07, 2021, 09:31:17 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.

Offline Submariner

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Re: Rust removal and prevention
« Reply #31 on: June 08, 2021, 09:50:52 am »
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.

Offline CaminoRacer

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Re: Rust removal and prevention
« Reply #32 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.
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Offline Submariner

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Re: Rust removal and prevention
« Reply #33 on: June 08, 2021, 11:08:29 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.

Offline Submariner

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Re: Rust removal and prevention
« Reply #34 on: June 08, 2021, 05:58:49 pm »
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.
« Last Edit: June 08, 2021, 06:00:55 pm by Submariner »

Offline CaminoRacer

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Re: Rust removal and prevention
« Reply #35 on: June 08, 2021, 06:02:49 pm »
Do you have 6 sided closed wrenches or 12 sided? 6 sided should help prevent rounding off the bolt
1969 El Camino - AutoXer

Offline Submariner

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Re: Rust removal and prevention
« Reply #36 on: June 08, 2021, 06:37:00 pm »
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.

Offline Submariner

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Re: Rust removal and prevention
« Reply #37 on: June 08, 2021, 06:46:23 pm »
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.

Offline JWC

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Re: Rust removal and prevention
« Reply #38 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.

Favorite quotes:

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I believe everything that man just said---because it was exactly what I wanted to hear.  Space Ghost


When you photograph people in colour you photograph their clothes.  But when you photograph people in B&W, you photograph their souls!  ~Ted Grant

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Offline Submariner

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Re: Rust removal and prevention
« Reply #39 on: June 09, 2021, 01:47:22 pm »
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.

Offline Laconian

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Re: Rust removal and prevention
« Reply #40 on: June 09, 2021, 02:08:55 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?
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Offline Submariner

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Re: Rust removal and prevention
« Reply #41 on: June 09, 2021, 02:10:54 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.

Offline JWC

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Re: Rust removal and prevention
« Reply #42 on: June 09, 2021, 03:54:05 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.
Favorite quotes:

"So the best way to get something done, if you, if you hold near and dear to you that you, like to be able to, anyway."  POTUS Joe Biden

I believe everything that man just said---because it was exactly what I wanted to hear.  Space Ghost


When you photograph people in colour you photograph their clothes.  But when you photograph people in B&W, you photograph their souls!  ~Ted Grant

Art should be vulnerable....images should be about what something feels like as well as what it looks like. Duane Michals

Offline Submariner

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Re: Rust removal and prevention
« Reply #43 on: June 09, 2021, 03:59:23 pm »
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.

Offline CaminoRacer

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Re: Rust removal and prevention
« Reply #44 on: June 09, 2021, 07:59:43 pm »
Sawzall can work too
1969 El Camino - AutoXer

Offline shp4man

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Re: Rust removal and prevention
« Reply #45 on: June 09, 2021, 08:12:10 pm »
Spanner is British, like tyre and petrol. Sub, are you British?

Offline Submariner

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Re: Rust removal and prevention
« Reply #46 on: June 09, 2021, 08:29:10 pm »
Does watching lots of top gear count?

Offline shp4man

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Re: Rust removal and prevention
« Reply #47 on: June 09, 2021, 08:34:25 pm »
Does watching lots of top gear count?

 :lol:

Offline Submariner

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Re: Rust removal and prevention
« Reply #48 on: June 11, 2021, 02:35:04 pm »
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.

Offline Submariner

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Re: Rust removal and prevention
« Reply #49 on: June 11, 2021, 02:37:59 pm »
I just spent actual dollars on pipe that has proven to be useless.  Now I have 24" of useless pipe laying around.

Offline Laconian

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Re: Rust removal and prevention
« Reply #50 on: June 11, 2021, 02:44:04 pm »
Have you tried PB Blaster?
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Offline Submariner

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Re: Rust removal and prevention
« Reply #51 on: June 11, 2021, 02:49:57 pm »
No but I am about to try semtex.

Offline shp4man

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Re: Rust removal and prevention
« Reply #52 on: June 11, 2021, 02:58:15 pm »
Sounds like it's time for some Alabama hot wrench magic!

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

Offline Submariner

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Re: Rust removal and prevention
« Reply #53 on: June 11, 2021, 03:40:54 pm »
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.

Offline Submariner

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Re: Rust removal and prevention
« Reply #54 on: June 11, 2021, 04:31:04 pm »
OMG I GOT TWO OF THEM OFF

Offline Submariner

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Re: Rust removal and prevention
« Reply #55 on: June 11, 2021, 04:32:46 pm »
Interestingly enough, they were completely free of corrosion.

Offline Soup DeVille

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Re: Rust removal and prevention
« Reply #56 on: June 11, 2021, 05:31:55 pm »
This is entertaining as all hell.

"Every four hour job is one bolt away from being a three day ordeal."
Getting an education is a bit like a communicable sexual disease. It makes you unsuitable for a lot of jobs and then you have the urge to pass it on

Offline Submariner

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Re: Rust removal and prevention
« Reply #57 on: June 11, 2021, 05:33:58 pm »
I'm getting so goddamn good at this I'm thinking about opening my own shop.

Offline Submariner

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Re: Rust removal and prevention
« Reply #58 on: June 12, 2021, 09:33:21 am »
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.




Offline Submariner

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Re: Rust removal and prevention
« Reply #59 on: June 12, 2021, 11:06:03 am »