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Old 31-12-2017, 08:34 PM   #1
E60525d
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Rusty bolts

On our BMW X3, there are a few bolts under the bonnet where the heads are rusted. As there are quite a few, it does not look great.

Any tips on how i can remove the rust from the bolt heads without removing them?
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Old 31-12-2017, 08:39 PM   #2
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Have a look at bilt hamber products, deox gel will do the job.
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Old 31-12-2017, 09:25 PM   #3
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I cheated a bit. I removed a few and put them in acid wheel cleaner then zinc primered them.

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Old 31-12-2017, 09:33 PM   #4
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Remove any flakes/rust with a fine wire brush.

Paint over them with Bilt Hamber Hydrate 80.
Then top coat with colour to match.
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Old 01-01-2018, 11:30 AM   #5
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When you say "bolts", do you mean the trim fixings, or those on the engine/ancillaries etc?
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Old 04-01-2018, 03:37 PM   #6
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Quote:
Originally Posted by slim_boy_fat View Post
When you say "bolts", do you mean the trim fixings, or those on the engine/ancillaries etc?
Both.
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Old 04-01-2018, 03:50 PM   #7
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Black hammerite direct to rust and a small paint brush like the ones you get down the hobby isle, get a multi pack then you can use the fine ones for stone chips should you need to, any time I work on the car the hammerite and a brush comes out and I touch anything rusty up,
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Old 04-01-2018, 05:23 PM   #8
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Quote:
Originally Posted by E60525d View Post
Both.
Trim parts, replace imho - they're general cheap enough. For engine ancillaries how about a Dremel with a flexible extension and small wire brush(s), then lacquer?
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Old 04-01-2018, 09:56 PM   #9
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As above, clean off with a rotary tool with a wire brush head, then how about just using a black paint pen to 'touch up' the bolt heads?

Hi All BTW! 1st post after long time lurker!
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