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v1nn1e

Corroded exhaust header clamps

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I know mine wasn't garaged for the first year or two of its life but even so, the brackets/clamps and nuts that hold the exhaust headers into the cylinder head are mighty corroded.

I've been lathering them in ACF50 at every opportunity in the hope it may make a little difference.

I assume these are swaged in place when the header piping assembly is made up and so cannot be changed without a new set of header pipes...?

 

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Sounds like the perfect excuse to upgrade your exhaust!

You're right though, that piece cannot be replaced individually.

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Mine were exactly the same, corroded to hell. Putting aside the ugliness, they were so bad that one of the studs sheared off when I took the headers off and I had to drill and tap the head. ACF50 will help stem any future corrosion but won’t address the state they are in now.

Whilst I had my exhaust off I cleaned as much corrosion off as I could with a wire brush and fitted new studs and nuts, which are sprayed in ACF50 regularly to try and avoid future problems. I can’t see how you change the clamps without cutting the header pipes and rewelding or changing the headers completely.

I feel your pain 😥


Red 2015 Tracer, UK spec (well, it was until I started messing with it...)

North-West 🇬🇧 

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Yeah, the issue with attempting a replacement is exactly that - sheared stud!

I'll continue the ACF50 and also intersperse with WD40 and whatever penetrating fluid I can lay my hands on. Hopefully, as, when and if I need to remove them, they'll come off! 😖

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BTW, for bringing your old stainless pipes up to new and shiny, there's little to beat Harpic loo cleaner.

Paint on with a brush, leave for 30 minutes or so, then use a plastic kitchen scourer. Finish up with some Solvol Autosol.

Make sure none goes on the engine or anywhere else and rinse off thoroughly with a hose!

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I've been using acf50 for a few years now, some say apply 2 or 3 time's a year, others say after every wash, preventing rust starting and killing any already there. However, I do wonder if hot engines and header's are really worth it, as it all seems to burn off on start up. Maybe if storing for winter or laying up for a while might make better sense.

My bikes only got 1200 miles on it and the downpipes already look a mess. I do like the look when applied, even on plastics, but hot bits, I'm not too sure....or am I doing something wrong.???

Front fender extender seems to do f- - k all to help either.

Loving the bike tho.

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Yeah, you get burn-off when the engine is started as everything hots up - it was like a bonfire down there after my latest round! 😆

I do apply the ACF50 when the bike is cold and assume it's primarily working only until the next start-up. 

I don't put ACF50 on the actual pipes, just the clamp plates and nuts that secure them, which appear to be mild steel rather than stainless.

 

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